Merge branch 'dmaengine' into async-tx-next

Conflicts:
	crypto/async_tx/async_xor.c
	drivers/dma/ioat/dma_v2.h
	drivers/dma/ioat/pci.c
	drivers/md/raid5.c

337 files changed, 15941 insertions, 7202 deletions

diff --git a/net/802/fddi.c b/net/802/fddi.c
index 539e6064e6d4..3ef0ab0a543a 100644
--- a/net/802/fddi.c
+++ b/net/802/fddi.c
@@ -185,10 +185,6 @@ static const struct header_ops fddi_header_ops = {
 static void fddi_setup(struct net_device *dev)
 {
 	dev->header_ops		= &fddi_header_ops;
-#ifdef CONFIG_COMPAT_NET_DEV_OPS
-	dev->change_mtu		= fddi_change_mtu,
-#endif
-
 	dev->type		= ARPHRD_FDDI;
 	dev->hard_header_len	= FDDI_K_SNAP_HLEN+3;	/* Assume 802.2 SNAP hdr len + 3 pad bytes */
 	dev->mtu		= FDDI_K_SNAP_DLEN;	/* Assume max payload of 802.2 SNAP frame */
diff --git a/net/802/hippi.c b/net/802/hippi.c
index 313b9ebf92ee..cd3e8e929529 100644
--- a/net/802/hippi.c
+++ b/net/802/hippi.c
@@ -193,11 +193,6 @@ static const struct header_ops hippi_header_ops = {
 
 static void hippi_setup(struct net_device *dev)
 {
-#ifdef CONFIG_COMPAT_NET_DEV_OPS
-	dev->change_mtu			= hippi_change_mtu;
-	dev->set_mac_address 		= hippi_mac_addr;
-	dev->neigh_setup 		= hippi_neigh_setup_dev;
-#endif
 	dev->header_ops			= &hippi_header_ops;
 
 	/*
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index d1e10546eb85..fe649081fbdc 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -378,13 +378,13 @@ static void vlan_sync_address(struct net_device *dev,
 	 * the new address */
 	if (compare_ether_addr(vlandev->dev_addr, vlan->real_dev_addr) &&
 	    !compare_ether_addr(vlandev->dev_addr, dev->dev_addr))
-		dev_unicast_delete(dev, vlandev->dev_addr, ETH_ALEN);
+		dev_unicast_delete(dev, vlandev->dev_addr);
 
 	/* vlan address was equal to the old address and is different from
 	 * the new address */
 	if (!compare_ether_addr(vlandev->dev_addr, vlan->real_dev_addr) &&
 	    compare_ether_addr(vlandev->dev_addr, dev->dev_addr))
-		dev_unicast_add(dev, vlandev->dev_addr, ETH_ALEN);
+		dev_unicast_add(dev, vlandev->dev_addr);
 
 	memcpy(vlan->real_dev_addr, dev->dev_addr, ETH_ALEN);
 }
@@ -758,7 +758,7 @@ static void __exit vlan_cleanup_module(void)
 		BUG_ON(!hlist_empty(&vlan_group_hash[i]));
 
 	unregister_pernet_gen_device(vlan_net_id, &vlan_net_ops);
-	synchronize_net();
+	rcu_barrier(); /* Wait for completion of call_rcu()'s */
 
 	vlan_gvrp_uninit();
 }
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
index c67fe6f75653..7f7de1a04de6 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -114,9 +114,9 @@ int vlan_gro_receive(struct napi_struct *napi, struct vlan_group *grp,
 EXPORT_SYMBOL(vlan_gro_receive);
 
 int vlan_gro_frags(struct napi_struct *napi, struct vlan_group *grp,
-		   unsigned int vlan_tci, struct napi_gro_fraginfo *info)
+		   unsigned int vlan_tci)
 {
-	struct sk_buff *skb = napi_fraginfo_skb(napi, info);
+	struct sk_buff *skb = napi_frags_skb(napi);
 
 	if (!skb)
 		return NET_RX_DROP;
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index b4b9068e55a7..96bad8f233e2 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -290,7 +290,7 @@ static int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev,
 
 static int vlan_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
-	struct net_device_stats *stats = &dev->stats;
+	struct netdev_queue *txq = netdev_get_tx_queue(dev, 0);
 	struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data);
 
 	/* Handle non-VLAN frames if they are sent to us, for example by DHCP.
@@ -309,7 +309,7 @@ static int vlan_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb);
 		skb = __vlan_put_tag(skb, vlan_tci);
 		if (!skb) {
-			stats->tx_dropped++;
+			txq->tx_dropped++;
 			return NETDEV_TX_OK;
 		}
 
@@ -317,8 +317,8 @@ static int vlan_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 			vlan_dev_info(dev)->cnt_inc_headroom_on_tx++;
 	}
 
-	stats->tx_packets++;
-	stats->tx_bytes += skb->len;
+	txq->tx_packets++;
+	txq->tx_bytes += skb->len;
 
 	skb->dev = vlan_dev_info(dev)->real_dev;
 	dev_queue_xmit(skb);
@@ -328,15 +328,15 @@ static int vlan_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 static int vlan_dev_hwaccel_hard_start_xmit(struct sk_buff *skb,
 					    struct net_device *dev)
 {
-	struct net_device_stats *stats = &dev->stats;
+	struct netdev_queue *txq = netdev_get_tx_queue(dev, 0);
 	u16 vlan_tci;
 
 	vlan_tci = vlan_dev_info(dev)->vlan_id;
 	vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb);
 	skb = __vlan_hwaccel_put_tag(skb, vlan_tci);
 
-	stats->tx_packets++;
-	stats->tx_bytes += skb->len;
+	txq->tx_packets++;
+	txq->tx_bytes += skb->len;
 
 	skb->dev = vlan_dev_info(dev)->real_dev;
 	dev_queue_xmit(skb);
@@ -441,7 +441,7 @@ static int vlan_dev_open(struct net_device *dev)
 		return -ENETDOWN;
 
 	if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr)) {
-		err = dev_unicast_add(real_dev, dev->dev_addr, ETH_ALEN);
+		err = dev_unicast_add(real_dev, dev->dev_addr);
 		if (err < 0)
 			goto out;
 	}
@@ -470,7 +470,7 @@ clear_allmulti:
 		dev_set_allmulti(real_dev, -1);
 del_unicast:
 	if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
-		dev_unicast_delete(real_dev, dev->dev_addr, ETH_ALEN);
+		dev_unicast_delete(real_dev, dev->dev_addr);
 out:
 	netif_carrier_off(dev);
 	return err;
@@ -492,7 +492,7 @@ static int vlan_dev_stop(struct net_device *dev)
 		dev_set_promiscuity(real_dev, -1);
 
 	if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
-		dev_unicast_delete(real_dev, dev->dev_addr, dev->addr_len);
+		dev_unicast_delete(real_dev, dev->dev_addr);
 
 	netif_carrier_off(dev);
 	return 0;
@@ -511,13 +511,13 @@ static int vlan_dev_set_mac_address(struct net_device *dev, void *p)
 		goto out;
 
 	if (compare_ether_addr(addr->sa_data, real_dev->dev_addr)) {
-		err = dev_unicast_add(real_dev, addr->sa_data, ETH_ALEN);
+		err = dev_unicast_add(real_dev, addr->sa_data);
 		if (err < 0)
 			return err;
 	}
 
 	if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
-		dev_unicast_delete(real_dev, dev->dev_addr, ETH_ALEN);
+		dev_unicast_delete(real_dev, dev->dev_addr);
 
 out:
 	memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
@@ -644,7 +644,6 @@ static int vlan_dev_init(struct net_device *dev)
 		dev->hard_header_len = real_dev->hard_header_len + VLAN_HLEN;
 		dev->netdev_ops         = &vlan_netdev_ops;
 	}
-	netdev_resync_ops(dev);
 
 	if (is_vlan_dev(real_dev))
 		subclass = 1;
@@ -671,13 +670,7 @@ static int vlan_ethtool_get_settings(struct net_device *dev,
 				     struct ethtool_cmd *cmd)
 {
 	const struct vlan_dev_info *vlan = vlan_dev_info(dev);
-	struct net_device *real_dev = vlan->real_dev;
-
-	if (!real_dev->ethtool_ops ||
-	    !real_dev->ethtool_ops->get_settings)
-		return -EOPNOTSUPP;
-
-	return real_dev->ethtool_ops->get_settings(real_dev, cmd);
+	return dev_ethtool_get_settings(vlan->real_dev, cmd);
 }
 
 static void vlan_ethtool_get_drvinfo(struct net_device *dev,
@@ -691,24 +684,13 @@ static void vlan_ethtool_get_drvinfo(struct net_device *dev,
 static u32 vlan_ethtool_get_rx_csum(struct net_device *dev)
 {
 	const struct vlan_dev_info *vlan = vlan_dev_info(dev);
-	struct net_device *real_dev = vlan->real_dev;
-
-	if (real_dev->ethtool_ops == NULL ||
-	    real_dev->ethtool_ops->get_rx_csum == NULL)
-		return 0;
-	return real_dev->ethtool_ops->get_rx_csum(real_dev);
+	return dev_ethtool_get_rx_csum(vlan->real_dev);
 }
 
 static u32 vlan_ethtool_get_flags(struct net_device *dev)
 {
 	const struct vlan_dev_info *vlan = vlan_dev_info(dev);
-	struct net_device *real_dev = vlan->real_dev;
-
-	if (!(real_dev->features & NETIF_F_HW_VLAN_RX) ||
-	    real_dev->ethtool_ops == NULL ||
-	    real_dev->ethtool_ops->get_flags == NULL)
-		return 0;
-	return real_dev->ethtool_ops->get_flags(real_dev);
+	return dev_ethtool_get_flags(vlan->real_dev);
 }
 
 static const struct ethtool_ops vlan_ethtool_ops = {
@@ -756,6 +738,7 @@ void vlan_setup(struct net_device *dev)
 	ether_setup(dev);
 
 	dev->priv_flags		|= IFF_802_1Q_VLAN;
+	dev->priv_flags		&= ~IFF_XMIT_DST_RELEASE;
 	dev->tx_queue_len	= 0;
 
 	dev->netdev_ops		= &vlan_netdev_ops;
diff --git a/net/8021q/vlanproc.c b/net/8021q/vlanproc.c
index 3628e0a81b40..b55a091a33df 100644
--- a/net/8021q/vlanproc.c
+++ b/net/8021q/vlanproc.c
@@ -279,13 +279,14 @@ static int vlandev_seq_show(struct seq_file *seq, void *offset)
 {
 	struct net_device *vlandev = (struct net_device *) seq->private;
 	const struct vlan_dev_info *dev_info = vlan_dev_info(vlandev);
-	struct net_device_stats *stats = &vlandev->stats;
+	const struct net_device_stats *stats;
 	static const char fmt[] = "%30s %12lu\n";
 	int i;
 
 	if (!is_vlan_dev(vlandev))
 		return 0;
 
+	stats = dev_get_stats(vlandev);
 	seq_printf(seq,
 		   "%s  VID: %d	 REORDER_HDR: %i  dev->priv_flags: %hx\n",
 		   vlandev->name, dev_info->vlan_id,
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index bb8579a141a8..a49484e67e1d 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -246,7 +246,7 @@ static int p9_virtio_probe(struct virtio_device *vdev)
 	chan->vdev = vdev;
 
 	/* We expect one virtqueue, for requests. */
-	chan->vq = vdev->config->find_vq(vdev, 0, req_done);
+	chan->vq = virtio_find_single_vq(vdev, req_done, "requests");
 	if (IS_ERR(chan->vq)) {
 		err = PTR_ERR(chan->vq);
 		goto out_free_vq;
@@ -261,7 +261,7 @@ static int p9_virtio_probe(struct virtio_device *vdev)
 	return 0;
 
 out_free_vq:
-	vdev->config->del_vq(chan->vq);
+	vdev->config->del_vqs(vdev);
 fail:
 	mutex_lock(&virtio_9p_lock);
 	chan_index--;
@@ -332,7 +332,7 @@ static void p9_virtio_remove(struct virtio_device *vdev)
 	BUG_ON(chan->inuse);
 
 	if (chan->initialized) {
-		vdev->config->del_vq(chan->vq);
+		vdev->config->del_vqs(vdev);
 		chan->initialized = false;
 	}
 }
diff --git a/net/Kconfig b/net/Kconfig
index c19f549c8e74..7051b9710675 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -179,6 +179,7 @@ source "net/lapb/Kconfig"
 source "net/econet/Kconfig"
 source "net/wanrouter/Kconfig"
 source "net/phonet/Kconfig"
+source "net/ieee802154/Kconfig"
 source "net/sched/Kconfig"
 source "net/dcb/Kconfig"
 
diff --git a/net/Makefile b/net/Makefile
index 9e00a55a901b..ba324aefda73 100644
--- a/net/Makefile
+++ b/net/Makefile
@@ -60,6 +60,7 @@ obj-$(CONFIG_NET_9P)		+= 9p/
 ifneq ($(CONFIG_DCB),)
 obj-y				+= dcb/
 endif
+obj-y				+= ieee802154/
 
 ifeq ($(CONFIG_NET),y)
 obj-$(CONFIG_SYSCTL)		+= sysctl_net.o
diff --git a/net/appletalk/atalk_proc.c b/net/appletalk/atalk_proc.c
index fd8e0847b254..80caad1a31a5 100644
--- a/net/appletalk/atalk_proc.c
+++ b/net/appletalk/atalk_proc.c
@@ -204,8 +204,8 @@ static int atalk_seq_socket_show(struct seq_file *seq, void *v)
 			"%02X %d\n",
 		   s->sk_type, ntohs(at->src_net), at->src_node, at->src_port,
 		   ntohs(at->dest_net), at->dest_node, at->dest_port,
-		   atomic_read(&s->sk_wmem_alloc),
-		   atomic_read(&s->sk_rmem_alloc),
+		   sk_wmem_alloc_get(s),
+		   sk_rmem_alloc_get(s),
 		   s->sk_state, SOCK_INODE(s->sk_socket)->i_uid);
 out:
 	return 0;
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index d6a9243641af..590b83963622 100644
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -162,8 +162,7 @@ static void atalk_destroy_timer(unsigned long data)
 {
 	struct sock *sk = (struct sock *)data;
 
-	if (atomic_read(&sk->sk_wmem_alloc) ||
-	    atomic_read(&sk->sk_rmem_alloc)) {
+	if (sk_has_allocations(sk)) {
 		sk->sk_timer.expires = jiffies + SOCK_DESTROY_TIME;
 		add_timer(&sk->sk_timer);
 	} else
@@ -175,8 +174,7 @@ static inline void atalk_destroy_socket(struct sock *sk)
 	atalk_remove_socket(sk);
 	skb_queue_purge(&sk->sk_receive_queue);
 
-	if (atomic_read(&sk->sk_wmem_alloc) ||
-	    atomic_read(&sk->sk_rmem_alloc)) {
+	if (sk_has_allocations(sk)) {
 		setup_timer(&sk->sk_timer, atalk_destroy_timer,
 				(unsigned long)sk);
 		sk->sk_timer.expires	= jiffies + SOCK_DESTROY_TIME;
@@ -939,6 +937,7 @@ static unsigned long atalk_sum_skb(const struct sk_buff *skb, int offset,
 				   int len, unsigned long sum)
 {
 	int start = skb_headlen(skb);
+	struct sk_buff *frag_iter;
 	int i, copy;
 
 	/* checksum stuff in header space */
@@ -977,26 +976,22 @@ static unsigned long atalk_sum_skb(const struct sk_buff *skb, int offset,
 		start = end;
 	}
 
-	if (skb_shinfo(skb)->frag_list) {
-		struct sk_buff *list = skb_shinfo(skb)->frag_list;
-
-		for (; list; list = list->next) {
-			int end;
+	skb_walk_frags(skb, frag_iter) {
+		int end;
 
-			WARN_ON(start > offset + len);
+		WARN_ON(start > offset + len);
 
-			end = start + list->len;
-			if ((copy = end - offset) > 0) {
-				if (copy > len)
-					copy = len;
-				sum = atalk_sum_skb(list, offset - start,
-						    copy, sum);
-				if ((len -= copy) == 0)
-					return sum;
-				offset += copy;
-			}
-			start = end;
+		end = start + frag_iter->len;
+		if ((copy = end - offset) > 0) {
+			if (copy > len)
+				copy = len;
+			sum = atalk_sum_skb(frag_iter, offset - start,
+					    copy, sum);
+			if ((len -= copy) == 0)
+				return sum;
+			offset += copy;
 		}
+		start = end;
 	}
 
 	BUG_ON(len > 0);
@@ -1753,8 +1748,7 @@ static int atalk_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 	switch (cmd) {
 		/* Protocol layer */
 		case TIOCOUTQ: {
-			long amount = sk->sk_sndbuf -
-				      atomic_read(&sk->sk_wmem_alloc);
+			long amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk);
 
 			if (amount < 0)
 				amount = 0;
diff --git a/net/appletalk/dev.c b/net/appletalk/dev.c
index 72277d70c980..6c8016f61866 100644
--- a/net/appletalk/dev.c
+++ b/net/appletalk/dev.c
@@ -9,21 +9,10 @@
 #include <linux/if_arp.h>
 #include <linux/if_ltalk.h>
 
-#ifdef CONFIG_COMPAT_NET_DEV_OPS
-static int ltalk_change_mtu(struct net_device *dev, int mtu)
-{
-	return -EINVAL;
-}
-#endif
-
 static void ltalk_setup(struct net_device *dev)
 {
 	/* Fill in the fields of the device structure with localtalk-generic values. */
 
-#ifdef CONFIG_COMPAT_NET_DEV_OPS
-	dev->change_mtu		= ltalk_change_mtu;
-#endif
-
 	dev->type		= ARPHRD_LOCALTLK;
 	dev->hard_header_len 	= LTALK_HLEN;
 	dev->mtu		= LTALK_MTU;
diff --git a/net/atm/br2684.c b/net/atm/br2684.c
index 3100a8940afc..2912665fc58c 100644
--- a/net/atm/br2684.c
+++ b/net/atm/br2684.c
@@ -228,7 +228,7 @@ static int br2684_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	struct br2684_dev *brdev = BRPRIV(dev);
 	struct br2684_vcc *brvcc;
 
-	pr_debug("br2684_start_xmit, skb->dst=%p\n", skb->dst);
+	pr_debug("br2684_start_xmit, skb_dst(skb)=%p\n", skb_dst(skb));
 	read_lock(&devs_lock);
 	brvcc = pick_outgoing_vcc(skb, brdev);
 	if (brvcc == NULL) {
@@ -445,9 +445,10 @@ free_skb:
  */
 static int br2684_regvcc(struct atm_vcc *atmvcc, void __user * arg)
 {
+	struct sk_buff_head queue;
 	int err;
 	struct br2684_vcc *brvcc;
-	struct sk_buff *skb;
+	struct sk_buff *skb, *tmp;
 	struct sk_buff_head *rq;
 	struct br2684_dev *brdev;
 	struct net_device *net_dev;
@@ -505,29 +506,20 @@ static int br2684_regvcc(struct atm_vcc *atmvcc, void __user * arg)
 	barrier();
 	atmvcc->push = br2684_push;
 
+	__skb_queue_head_init(&queue);
 	rq = &sk_atm(atmvcc)->sk_receive_queue;
 
 	spin_lock_irqsave(&rq->lock, flags);
-	if (skb_queue_empty(rq)) {
-		skb = NULL;
-	} else {
-		/* NULL terminate the list.  */
-		rq->prev->next = NULL;
-		skb = rq->next;
-	}
-	rq->prev = rq->next = (struct sk_buff *)rq;
-	rq->qlen = 0;
+	skb_queue_splice_init(rq, &queue);
 	spin_unlock_irqrestore(&rq->lock, flags);
 
-	while (skb) {
-		struct sk_buff *next = skb->next;
+	skb_queue_walk_safe(&queue, skb, tmp) {
+		struct net_device *dev = skb->dev;
 
-		skb->next = skb->prev = NULL;
-		br2684_push(atmvcc, skb);
-		skb->dev->stats.rx_bytes -= skb->len;
-		skb->dev->stats.rx_packets--;
+		dev->stats.rx_bytes -= skb->len;
+		dev->stats.rx_packets--;
 
-		skb = next;
+		br2684_push(atmvcc, skb);
 	}
 	__module_get(THIS_MODULE);
 	return 0;
diff --git a/net/atm/clip.c b/net/atm/clip.c
index 3dc0a3a42a57..e65a3b1477f8 100644
--- a/net/atm/clip.c
+++ b/net/atm/clip.c
@@ -369,16 +369,16 @@ static int clip_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	unsigned long flags;
 
 	pr_debug("clip_start_xmit (skb %p)\n", skb);
-	if (!skb->dst) {
-		printk(KERN_ERR "clip_start_xmit: skb->dst == NULL\n");
+	if (!skb_dst(skb)) {
+		printk(KERN_ERR "clip_start_xmit: skb_dst(skb) == NULL\n");
 		dev_kfree_skb(skb);
 		dev->stats.tx_dropped++;
 		return 0;
 	}
-	if (!skb->dst->neighbour) {
+	if (!skb_dst(skb)->neighbour) {
 #if 0
-		skb->dst->neighbour = clip_find_neighbour(skb->dst, 1);
-		if (!skb->dst->neighbour) {
+		skb_dst(skb)->neighbour = clip_find_neighbour(skb_dst(skb), 1);
+		if (!skb_dst(skb)->neighbour) {
 			dev_kfree_skb(skb);	/* lost that one */
 			dev->stats.tx_dropped++;
 			return 0;
@@ -389,7 +389,7 @@ static int clip_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		dev->stats.tx_dropped++;
 		return 0;
 	}
-	entry = NEIGH2ENTRY(skb->dst->neighbour);
+	entry = NEIGH2ENTRY(skb_dst(skb)->neighbour);
 	if (!entry->vccs) {
 		if (time_after(jiffies, entry->expires)) {
 			/* should be resolved */
@@ -406,7 +406,7 @@ static int clip_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	}
 	pr_debug("neigh %p, vccs %p\n", entry, entry->vccs);
 	ATM_SKB(skb)->vcc = vcc = entry->vccs->vcc;
-	pr_debug("using neighbour %p, vcc %p\n", skb->dst->neighbour, vcc);
+	pr_debug("using neighbour %p, vcc %p\n", skb_dst(skb)->neighbour, vcc);
 	if (entry->vccs->encap) {
 		void *here;
 
@@ -445,9 +445,9 @@ static int clip_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
 static int clip_mkip(struct atm_vcc *vcc, int timeout)
 {
+	struct sk_buff_head *rq, queue;
 	struct clip_vcc *clip_vcc;
-	struct sk_buff *skb;
-	struct sk_buff_head *rq;
+	struct sk_buff *skb, *tmp;
 	unsigned long flags;
 
 	if (!vcc->push)
@@ -469,39 +469,28 @@ static int clip_mkip(struct atm_vcc *vcc, int timeout)
 	vcc->push = clip_push;
 	vcc->pop = clip_pop;
 
+	__skb_queue_head_init(&queue);
 	rq = &sk_atm(vcc)->sk_receive_queue;
 
 	spin_lock_irqsave(&rq->lock, flags);
-	if (skb_queue_empty(rq)) {
-		skb = NULL;
-	} else {
-		/* NULL terminate the list.  */
-		rq->prev->next = NULL;
-		skb = rq->next;
-	}
-	rq->prev = rq->next = (struct sk_buff *)rq;
-	rq->qlen = 0;
+	skb_queue_splice_init(rq, &queue);
 	spin_unlock_irqrestore(&rq->lock, flags);
 
 	/* re-process everything received between connection setup and MKIP */
-	while (skb) {
-		struct sk_buff *next = skb->next;
-
-		skb->next = skb->prev = NULL;
+	skb_queue_walk_safe(&queue, skb, tmp) {
 		if (!clip_devs) {
 			atm_return(vcc, skb->truesize);
 			kfree_skb(skb);
 		} else {
+			struct net_device *dev = skb->dev;
 			unsigned int len = skb->len;
 
 			skb_get(skb);
 			clip_push(vcc, skb);
-			skb->dev->stats.rx_packets--;
-			skb->dev->stats.rx_bytes -= len;
+			dev->stats.rx_packets--;
+			dev->stats.rx_bytes -= len;
 			kfree_skb(skb);
 		}
-
-		skb = next;
 	}
 	return 0;
 }
@@ -568,6 +557,7 @@ static void clip_setup(struct net_device *dev)
 	/* without any more elaborate queuing. 100 is a reasonable */
 	/* compromise between decent burst-tolerance and protection */
 	/* against memory hogs. */
+	dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
 }
 
 static int clip_create(int number)
diff --git a/net/atm/common.c b/net/atm/common.c
index d34edbe754c8..c1c97936192c 100644
--- a/net/atm/common.c
+++ b/net/atm/common.c
@@ -62,15 +62,15 @@ static struct sk_buff *alloc_tx(struct atm_vcc *vcc,unsigned int size)
 	struct sk_buff *skb;
 	struct sock *sk = sk_atm(vcc);
 
-	if (atomic_read(&sk->sk_wmem_alloc) && !atm_may_send(vcc, size)) {
+	if (sk_wmem_alloc_get(sk) && !atm_may_send(vcc, size)) {
 		pr_debug("Sorry: wmem_alloc = %d, size = %d, sndbuf = %d\n",
-			atomic_read(&sk->sk_wmem_alloc), size,
+			sk_wmem_alloc_get(sk), size,
 			sk->sk_sndbuf);
 		return NULL;
 	}
-	while (!(skb = alloc_skb(size,GFP_KERNEL))) schedule();
-	pr_debug("AlTx %d += %d\n", atomic_read(&sk->sk_wmem_alloc),
-		skb->truesize);
+	while (!(skb = alloc_skb(size, GFP_KERNEL)))
+		schedule();
+	pr_debug("AlTx %d += %d\n", sk_wmem_alloc_get(sk), skb->truesize);
 	atomic_add(skb->truesize, &sk->sk_wmem_alloc);
 	return skb;
 }
@@ -145,7 +145,7 @@ int vcc_create(struct net *net, struct socket *sock, int protocol, int family)
 	memset(&vcc->local,0,sizeof(struct sockaddr_atmsvc));
 	memset(&vcc->remote,0,sizeof(struct sockaddr_atmsvc));
 	vcc->qos.txtp.max_sdu = 1 << 16; /* for meta VCs */
-	atomic_set(&sk->sk_wmem_alloc, 0);
+	atomic_set(&sk->sk_wmem_alloc, 1);
 	atomic_set(&sk->sk_rmem_alloc, 0);
 	vcc->push = NULL;
 	vcc->pop = NULL;
diff --git a/net/atm/ioctl.c b/net/atm/ioctl.c
index 76ed3c8d26e6..4da8892ced5f 100644
--- a/net/atm/ioctl.c
+++ b/net/atm/ioctl.c
@@ -63,8 +63,7 @@ static int do_vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg
 				error =  -EINVAL;
 				goto done;
 			}
-			error = put_user(sk->sk_sndbuf -
-					 atomic_read(&sk->sk_wmem_alloc),
+			error = put_user(sk->sk_sndbuf - sk_wmem_alloc_get(sk),
 					 (int __user *) argp) ? -EFAULT : 0;
 			goto done;
 		case SIOCINQ:
diff --git a/net/atm/lec.c b/net/atm/lec.c
index 199b6bb79f42..ff2e594dca9b 100644
--- a/net/atm/lec.c
+++ b/net/atm/lec.c
@@ -34,7 +34,6 @@
 
 /* Proxy LEC knows about bridging */
 #if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE)
-#include <linux/if_bridge.h>
 #include "../bridge/br_private.h"
 
 static unsigned char bridge_ula_lec[] = { 0x01, 0x80, 0xc2, 0x00, 0x00 };
@@ -271,7 +270,8 @@ static int lec_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		printk("%s:No lecd attached\n", dev->name);
 		dev->stats.tx_errors++;
 		netif_stop_queue(dev);
-		return -EUNATCH;
+		kfree_skb(skb);
+		return NETDEV_TX_OK;
 	}
 
 	pr_debug("skbuff head:%lx data:%lx tail:%lx end:%lx\n",
@@ -518,18 +518,14 @@ static int lec_atm_send(struct atm_vcc *vcc, struct sk_buff *skb)
 	case l_should_bridge:
 #if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE)
 		{
-			struct net_bridge_fdb_entry *f;
-
 			pr_debug("%s: bridge zeppelin asks about %pM\n",
 				 dev->name, mesg->content.proxy.mac_addr);
 
-			if (br_fdb_get_hook == NULL || dev->br_port == NULL)
+			if (br_fdb_test_addr_hook == NULL)
 				break;
 
-			f = br_fdb_get_hook(dev->br_port->br,
-					    mesg->content.proxy.mac_addr);
-			if (f != NULL && f->dst->dev != dev
-			    && f->dst->state == BR_STATE_FORWARDING) {
+			if (br_fdb_test_addr_hook(dev,
+					mesg->content.proxy.mac_addr)) {
 				/* hit from bridge table, send LE_ARP_RESPONSE */
 				struct sk_buff *skb2;
 				struct sock *sk;
@@ -540,10 +536,8 @@ static int lec_atm_send(struct atm_vcc *vcc, struct sk_buff *skb)
 				skb2 =
 				    alloc_skb(sizeof(struct atmlec_msg),
 					      GFP_ATOMIC);
-				if (skb2 == NULL) {
-					br_fdb_put_hook(f);
+				if (skb2 == NULL)
 					break;
-				}
 				skb2->len = sizeof(struct atmlec_msg);
 				skb_copy_to_linear_data(skb2, mesg,
 							sizeof(*mesg));
@@ -552,8 +546,6 @@ static int lec_atm_send(struct atm_vcc *vcc, struct sk_buff *skb)
 				skb_queue_tail(&sk->sk_receive_queue, skb2);
 				sk->sk_data_ready(sk, skb2->len);
 			}
-			if (f != NULL)
-				br_fdb_put_hook(f);
 		}
 #endif /* defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE) */
 		break;
diff --git a/net/atm/proc.c b/net/atm/proc.c
index e7b3b273907d..38de5ff61ecd 100644
--- a/net/atm/proc.c
+++ b/net/atm/proc.c
@@ -204,8 +204,8 @@ static void vcc_info(struct seq_file *seq, struct atm_vcc *vcc)
 			seq_printf(seq, "%3d", sk->sk_family);
 	}
 	seq_printf(seq, " %04lx  %5d %7d/%7d %7d/%7d [%d]\n", vcc->flags, sk->sk_err,
-		  atomic_read(&sk->sk_wmem_alloc), sk->sk_sndbuf,
-		  atomic_read(&sk->sk_rmem_alloc), sk->sk_rcvbuf,
+		  sk_wmem_alloc_get(sk), sk->sk_sndbuf,
+		  sk_rmem_alloc_get(sk), sk->sk_rcvbuf,
 		  atomic_read(&sk->sk_refcnt));
 }
 
diff --git a/net/atm/raw.c b/net/atm/raw.c
index b0a2d8cb6744..cbfcc71a17b1 100644
--- a/net/atm/raw.c
+++ b/net/atm/raw.c
@@ -33,7 +33,7 @@ static void atm_pop_raw(struct atm_vcc *vcc,struct sk_buff *skb)
 	struct sock *sk = sk_atm(vcc);
 
 	pr_debug("APopR (%d) %d -= %d\n", vcc->vci,
-		atomic_read(&sk->sk_wmem_alloc), skb->truesize);
+		sk_wmem_alloc_get(sk), skb->truesize);
 	atomic_sub(skb->truesize, &sk->sk_wmem_alloc);
 	dev_kfree_skb_any(skb);
 	sk->sk_write_space(sk);
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index fd9d06f291dc..da0f64f82b57 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -330,8 +330,7 @@ void ax25_destroy_socket(ax25_cb *ax25)
 	}
 
 	if (ax25->sk != NULL) {
-		if (atomic_read(&ax25->sk->sk_wmem_alloc) ||
-		    atomic_read(&ax25->sk->sk_rmem_alloc)) {
+		if (sk_has_allocations(ax25->sk)) {
 			/* Defer: outstanding buffers */
 			setup_timer(&ax25->dtimer, ax25_destroy_timer,
 					(unsigned long)ax25);
@@ -1691,7 +1690,8 @@ static int ax25_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 	switch (cmd) {
 	case TIOCOUTQ: {
 		long amount;
-		amount = sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc);
+
+		amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk);
 		if (amount < 0)
 			amount = 0;
 		res = put_user(amount, (int __user *)argp);
@@ -1781,8 +1781,8 @@ static int ax25_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 		ax25_info.idletimer = ax25_display_timer(&ax25->idletimer) / (60 * HZ);
 		ax25_info.n2count   = ax25->n2count;
 		ax25_info.state     = ax25->state;
-		ax25_info.rcv_q     = atomic_read(&sk->sk_rmem_alloc);
-		ax25_info.snd_q     = atomic_read(&sk->sk_wmem_alloc);
+		ax25_info.rcv_q     = sk_wmem_alloc_get(sk);
+		ax25_info.snd_q     = sk_rmem_alloc_get(sk);
 		ax25_info.vs        = ax25->vs;
 		ax25_info.vr        = ax25->vr;
 		ax25_info.va        = ax25->va;
@@ -1922,8 +1922,8 @@ static int ax25_info_show(struct seq_file *seq, void *v)
 
 	if (ax25->sk != NULL) {
 		seq_printf(seq, " %d %d %lu\n",
-			   atomic_read(&ax25->sk->sk_wmem_alloc),
-			   atomic_read(&ax25->sk->sk_rmem_alloc),
+			   sk_wmem_alloc_get(ax25->sk),
+			   sk_rmem_alloc_get(ax25->sk),
 			   sock_i_ino(ax25->sk));
 	} else {
 		seq_puts(seq, " * * *\n");
diff --git a/net/ax25/ax25_in.c b/net/ax25/ax25_in.c
index 5f1d2107a1dd..de56d3983de0 100644
--- a/net/ax25/ax25_in.c
+++ b/net/ax25/ax25_in.c
@@ -437,8 +437,7 @@ free:
 int ax25_kiss_rcv(struct sk_buff *skb, struct net_device *dev,
 		  struct packet_type *ptype, struct net_device *orig_dev)
 {
-	skb->sk = NULL;		/* Initially we don't know who it's for */
-	skb->destructor = NULL;	/* Who initializes this, dammit?! */
+	skb_orphan(skb);
 
 	if (!net_eq(dev_net(dev), &init_net)) {
 		kfree_skb(skb);
diff --git a/net/bluetooth/Kconfig b/net/bluetooth/Kconfig
index 7725da95a767..59fdb1d2e8ed 100644
--- a/net/bluetooth/Kconfig
+++ b/net/bluetooth/Kconfig
@@ -3,8 +3,9 @@
 #
 
 menuconfig BT
-	depends on NET && !S390
 	tristate "Bluetooth subsystem support"
+	depends on NET && !S390
+	depends on RFKILL || !RFKILL
 	help
 	  Bluetooth is low-cost, low-power, short-range wireless technology.
 	  It was designed as a replacement for cables and other short-range
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 02b9baa1930b..0250e0600150 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -337,7 +337,7 @@ int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 		if (sk->sk_state == BT_LISTEN)
 			return -EINVAL;
 
-		amount = sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc);
+		amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk);
 		if (amount < 0)
 			amount = 0;
 		err = put_user(amount, (int __user *) arg);
diff --git a/net/bluetooth/cmtp/capi.c b/net/bluetooth/cmtp/capi.c
index 78958c0f9a40..97f8d68d574d 100644
--- a/net/bluetooth/cmtp/capi.c
+++ b/net/bluetooth/cmtp/capi.c
@@ -382,7 +382,7 @@ static void cmtp_reset_ctr(struct capi_ctr *ctrl)
 
 	BT_DBG("ctrl %p", ctrl);
 
-	capi_ctr_reseted(ctrl);
+	capi_ctr_down(ctrl);
 
 	atomic_inc(&session->terminate);
 	cmtp_schedule(session);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index cd061510b6bd..406ad07cdea1 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -39,6 +39,7 @@
 #include <linux/skbuff.h>
 #include <linux/interrupt.h>
 #include <linux/notifier.h>
+#include <linux/rfkill.h>
 #include <net/sock.h>
 
 #include <asm/system.h>
@@ -476,6 +477,11 @@ int hci_dev_open(__u16 dev)
 
 	hci_req_lock(hdev);
 
+	if (hdev->rfkill && rfkill_blocked(hdev->rfkill)) {
+		ret = -ERFKILL;
+		goto done;
+	}
+
 	if (test_bit(HCI_UP, &hdev->flags)) {
 		ret = -EALREADY;
 		goto done;
@@ -813,6 +819,24 @@ int hci_get_dev_info(void __user *arg)
 
 /* ---- Interface to HCI drivers ---- */
 
+static int hci_rfkill_set_block(void *data, bool blocked)
+{
+	struct hci_dev *hdev = data;
+
+	BT_DBG("%p name %s blocked %d", hdev, hdev->name, blocked);
+
+	if (!blocked)
+		return 0;
+
+	hci_dev_do_close(hdev);
+
+	return 0;
+}
+
+static const struct rfkill_ops hci_rfkill_ops = {
+	.set_block = hci_rfkill_set_block,
+};
+
 /* Alloc HCI device */
 struct hci_dev *hci_alloc_dev(void)
 {
@@ -844,7 +868,8 @@ int hci_register_dev(struct hci_dev *hdev)
 	struct list_head *head = &hci_dev_list, *p;
 	int i, id = 0;
 
-	BT_DBG("%p name %s type %d owner %p", hdev, hdev->name, hdev->type, hdev->owner);
+	BT_DBG("%p name %s type %d owner %p", hdev, hdev->name,
+						hdev->type, hdev->owner);
 
 	if (!hdev->open || !hdev->close || !hdev->destruct)
 		return -EINVAL;
@@ -900,6 +925,15 @@ int hci_register_dev(struct hci_dev *hdev)
 
 	hci_register_sysfs(hdev);
 
+	hdev->rfkill = rfkill_alloc(hdev->name, &hdev->dev,
+				RFKILL_TYPE_BLUETOOTH, &hci_rfkill_ops, hdev);
+	if (hdev->rfkill) {
+		if (rfkill_register(hdev->rfkill) < 0) {
+			rfkill_destroy(hdev->rfkill);
+			hdev->rfkill = NULL;
+		}
+	}
+
 	hci_notify(hdev, HCI_DEV_REG);
 
 	return id;
@@ -924,6 +958,11 @@ int hci_unregister_dev(struct hci_dev *hdev)
 
 	hci_notify(hdev, HCI_DEV_UNREG);
 
+	if (hdev->rfkill) {
+		rfkill_unregister(hdev->rfkill);
+		rfkill_destroy(hdev->rfkill);
+	}
+
 	hci_unregister_sysfs(hdev);
 
 	__hci_dev_put(hdev);
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index ca4d3b40d5ce..bd0a4c1bced0 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -40,10 +40,10 @@
 #include <linux/skbuff.h>
 #include <linux/list.h>
 #include <linux/device.h>
+#include <linux/uaccess.h>
 #include <net/sock.h>
 
 #include <asm/system.h>
-#include <asm/uaccess.h>
 #include <asm/unaligned.h>
 
 #include <net/bluetooth/bluetooth.h>
@@ -52,7 +52,7 @@
 
 #define VERSION "2.13"
 
-static u32 l2cap_feat_mask = 0x0080;
+static u32 l2cap_feat_mask = L2CAP_FEAT_FIXED_CHAN;
 static u8 l2cap_fixed_chan[8] = { 0x02, };
 
 static const struct proto_ops l2cap_sock_ops;
@@ -134,7 +134,8 @@ static inline struct sock *l2cap_get_chan_by_scid(struct l2cap_chan_list *l, u16
 	struct sock *s;
 	read_lock(&l->lock);
 	s = __l2cap_get_chan_by_scid(l, cid);
-	if (s) bh_lock_sock(s);
+	if (s)
+		bh_lock_sock(s);
 	read_unlock(&l->lock);
 	return s;
 }
@@ -154,17 +155,18 @@ static inline struct sock *l2cap_get_chan_by_ident(struct l2cap_chan_list *l, u8
 	struct sock *s;
 	read_lock(&l->lock);
 	s = __l2cap_get_chan_by_ident(l, ident);
-	if (s) bh_lock_sock(s);
+	if (s)
+		bh_lock_sock(s);
 	read_unlock(&l->lock);
 	return s;
 }
 
 static u16 l2cap_alloc_cid(struct l2cap_chan_list *l)
 {
-	u16 cid = 0x0040;
+	u16 cid = L2CAP_CID_DYN_START;
 
-	for (; cid < 0xffff; cid++) {
-		if(!__l2cap_get_chan_by_scid(l, cid))
+	for (; cid < L2CAP_CID_DYN_END; cid++) {
+		if (!__l2cap_get_chan_by_scid(l, cid))
 			return cid;
 	}
 
@@ -204,7 +206,8 @@ static void __l2cap_chan_add(struct l2cap_conn *conn, struct sock *sk, struct so
 {
 	struct l2cap_chan_list *l = &conn->chan_list;
 
-	BT_DBG("conn %p, psm 0x%2.2x, dcid 0x%4.4x", conn, l2cap_pi(sk)->psm, l2cap_pi(sk)->dcid);
+	BT_DBG("conn %p, psm 0x%2.2x, dcid 0x%4.4x", conn,
+			l2cap_pi(sk)->psm, l2cap_pi(sk)->dcid);
 
 	conn->disc_reason = 0x13;
 
@@ -215,13 +218,13 @@ static void __l2cap_chan_add(struct l2cap_conn *conn, struct sock *sk, struct so
 		l2cap_pi(sk)->scid = l2cap_alloc_cid(l);
 	} else if (sk->sk_type == SOCK_DGRAM) {
 		/* Connectionless socket */
-		l2cap_pi(sk)->scid = 0x0002;
-		l2cap_pi(sk)->dcid = 0x0002;
+		l2cap_pi(sk)->scid = L2CAP_CID_CONN_LESS;
+		l2cap_pi(sk)->dcid = L2CAP_CID_CONN_LESS;
 		l2cap_pi(sk)->omtu = L2CAP_DEFAULT_MTU;
 	} else {
 		/* Raw socket can send/recv signalling messages only */
-		l2cap_pi(sk)->scid = 0x0001;
-		l2cap_pi(sk)->dcid = 0x0001;
+		l2cap_pi(sk)->scid = L2CAP_CID_SIGNALING;
+		l2cap_pi(sk)->dcid = L2CAP_CID_SIGNALING;
 		l2cap_pi(sk)->omtu = L2CAP_DEFAULT_MTU;
 	}
 
@@ -272,7 +275,7 @@ static inline int l2cap_check_security(struct sock *sk)
 		if (l2cap_pi(sk)->sec_level == BT_SECURITY_HIGH)
 			auth_type = HCI_AT_NO_BONDING_MITM;
 		else
-                        auth_type = HCI_AT_NO_BONDING;
+			auth_type = HCI_AT_NO_BONDING;
 
 		if (l2cap_pi(sk)->sec_level == BT_SECURITY_LOW)
 			l2cap_pi(sk)->sec_level = BT_SECURITY_SDP;
@@ -588,7 +591,8 @@ static inline struct sock *l2cap_get_sock_by_psm(int state, __le16 psm, bdaddr_t
 	struct sock *s;
 	read_lock(&l2cap_sk_list.lock);
 	s = __l2cap_get_sock_by_psm(state, psm, src);
-	if (s) bh_lock_sock(s);
+	if (s)
+		bh_lock_sock(s);
 	read_unlock(&l2cap_sk_list.lock);
 	return s;
 }
@@ -808,7 +812,7 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
 		goto done;
 	}
 
-	if (la.l2_psm && btohs(la.l2_psm) < 0x1001 &&
+	if (la.l2_psm && __le16_to_cpu(la.l2_psm) < 0x1001 &&
 				!capable(CAP_NET_BIND_SERVICE)) {
 		err = -EACCES;
 		goto done;
@@ -825,7 +829,8 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
 		l2cap_pi(sk)->sport = la.l2_psm;
 		sk->sk_state = BT_BOUND;
 
-		if (btohs(la.l2_psm) == 0x0001 || btohs(la.l2_psm) == 0x0003)
+		if (__le16_to_cpu(la.l2_psm) == 0x0001 ||
+					__le16_to_cpu(la.l2_psm) == 0x0003)
 			l2cap_pi(sk)->sec_level = BT_SECURITY_SDP;
 	}
 
@@ -844,12 +849,13 @@ static int l2cap_do_connect(struct sock *sk)
 	struct hci_conn *hcon;
 	struct hci_dev *hdev;
 	__u8 auth_type;
-	int err = 0;
+	int err;
 
 	BT_DBG("%s -> %s psm 0x%2.2x", batostr(src), batostr(dst),
 							l2cap_pi(sk)->psm);
 
-	if (!(hdev = hci_get_route(dst, src)))
+	hdev = hci_get_route(dst, src);
+	if (!hdev)
 		return -EHOSTUNREACH;
 
 	hci_dev_lock_bh(hdev);
@@ -950,7 +956,7 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr, int al
 		goto done;
 	}
 
-	switch(sk->sk_state) {
+	switch (sk->sk_state) {
 	case BT_CONNECT:
 	case BT_CONNECT2:
 	case BT_CONFIG:
@@ -975,7 +981,8 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr, int al
 	bacpy(&bt_sk(sk)->dst, &la.l2_bdaddr);
 	l2cap_pi(sk)->psm = la.l2_psm;
 
-	if ((err = l2cap_do_connect(sk)))
+	err = l2cap_do_connect(sk);
+	if (err)
 		goto done;
 
 wait:
@@ -1009,9 +1016,9 @@ static int l2cap_sock_listen(struct socket *sock, int backlog)
 		write_lock_bh(&l2cap_sk_list.lock);
 
 		for (psm = 0x1001; psm < 0x1100; psm += 2)
-			if (!__l2cap_get_sock_by_addr(htobs(psm), src)) {
-				l2cap_pi(sk)->psm   = htobs(psm);
-				l2cap_pi(sk)->sport = htobs(psm);
+			if (!__l2cap_get_sock_by_addr(cpu_to_le16(psm), src)) {
+				l2cap_pi(sk)->psm   = cpu_to_le16(psm);
+				l2cap_pi(sk)->sport = cpu_to_le16(psm);
 				err = 0;
 				break;
 			}
@@ -1100,11 +1107,11 @@ static int l2cap_sock_getname(struct socket *sock, struct sockaddr *addr, int *l
 	if (peer) {
 		la->l2_psm = l2cap_pi(sk)->psm;
 		bacpy(&la->l2_bdaddr, &bt_sk(sk)->dst);
-		la->l2_cid = htobs(l2cap_pi(sk)->dcid);
+		la->l2_cid = cpu_to_le16(l2cap_pi(sk)->dcid);
 	} else {
 		la->l2_psm = l2cap_pi(sk)->sport;
 		bacpy(&la->l2_bdaddr, &bt_sk(sk)->src);
-		la->l2_cid = htobs(l2cap_pi(sk)->scid);
+		la->l2_cid = cpu_to_le16(l2cap_pi(sk)->scid);
 	}
 
 	return 0;
@@ -1114,7 +1121,7 @@ static inline int l2cap_do_send(struct sock *sk, struct msghdr *msg, int len)
 {
 	struct l2cap_conn *conn = l2cap_pi(sk)->conn;
 	struct sk_buff *skb, **frag;
-	int err, hlen, count, sent=0;
+	int err, hlen, count, sent = 0;
 	struct l2cap_hdr *lh;
 
 	BT_DBG("sk %p len %d", sk, len);
@@ -1167,8 +1174,8 @@ static inline int l2cap_do_send(struct sock *sk, struct msghdr *msg, int len)
 
 		frag = &(*frag)->next;
 	}
-
-	if ((err = hci_send_acl(conn->hcon, skb, 0)) < 0)
+	err = hci_send_acl(conn->hcon, skb, 0);
+	if (err < 0)
 		goto fail;
 
 	return sent;
@@ -1556,7 +1563,7 @@ static void l2cap_raw_recv(struct l2cap_conn *conn, struct sk_buff *skb)
 {
 	struct l2cap_chan_list *l = &conn->chan_list;
 	struct sk_buff *nskb;
-	struct sock * sk;
+	struct sock *sk;
 
 	BT_DBG("conn %p", conn);
 
@@ -1568,8 +1575,8 @@ static void l2cap_raw_recv(struct l2cap_conn *conn, struct sk_buff *skb)
 		/* Don't send frame to the socket it came from */
 		if (skb->sk == sk)
 			continue;
-
-		if (!(nskb = skb_clone(skb, GFP_ATOMIC)))
+		nskb = skb_clone(skb, GFP_ATOMIC);
+		if (!nskb)
 			continue;
 
 		if (sock_queue_rcv_skb(sk, nskb))
@@ -1587,7 +1594,8 @@ static struct sk_buff *l2cap_build_cmd(struct l2cap_conn *conn,
 	struct l2cap_hdr *lh;
 	int len, count;
 
-	BT_DBG("conn %p, code 0x%2.2x, ident 0x%2.2x, len %d", conn, code, ident, dlen);
+	BT_DBG("conn %p, code 0x%2.2x, ident 0x%2.2x, len %d",
+			conn, code, ident, dlen);
 
 	len = L2CAP_HDR_SIZE + L2CAP_CMD_HDR_SIZE + dlen;
 	count = min_t(unsigned int, conn->mtu, len);
@@ -1598,7 +1606,7 @@ static struct sk_buff *l2cap_build_cmd(struct l2cap_conn *conn,
 
 	lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
 	lh->len = cpu_to_le16(L2CAP_CMD_HDR_SIZE + dlen);
-	lh->cid = cpu_to_le16(0x0001);
+	lh->cid = cpu_to_le16(L2CAP_CID_SIGNALING);
 
 	cmd = (struct l2cap_cmd_hdr *) skb_put(skb, L2CAP_CMD_HDR_SIZE);
 	cmd->code  = code;
@@ -1739,8 +1747,8 @@ static int l2cap_parse_conf_req(struct sock *sk, void *data)
 	while (len >= L2CAP_CONF_OPT_SIZE) {
 		len -= l2cap_get_conf_opt(&req, &type, &olen, &val);
 
-		hint  = type & 0x80;
-		type &= 0x7f;
+		hint  = type & L2CAP_CONF_HINT;
+		type &= L2CAP_CONF_MASK;
 
 		switch (type) {
 		case L2CAP_CONF_MTU:
@@ -1966,10 +1974,12 @@ static inline int l2cap_connect_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hd
 	BT_DBG("dcid 0x%4.4x scid 0x%4.4x result 0x%2.2x status 0x%2.2x", dcid, scid, result, status);
 
 	if (scid) {
-		if (!(sk = l2cap_get_chan_by_scid(&conn->chan_list, scid)))
+		sk = l2cap_get_chan_by_scid(&conn->chan_list, scid);
+		if (!sk)
 			return 0;
 	} else {
-		if (!(sk = l2cap_get_chan_by_ident(&conn->chan_list, cmd->ident)))
+		sk = l2cap_get_chan_by_ident(&conn->chan_list, cmd->ident);
+		if (!sk)
 			return 0;
 	}
 
@@ -2012,7 +2022,8 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
 
 	BT_DBG("dcid 0x%4.4x flags 0x%2.2x", dcid, flags);
 
-	if (!(sk = l2cap_get_chan_by_scid(&conn->chan_list, dcid)))
+	sk = l2cap_get_chan_by_scid(&conn->chan_list, dcid);
+	if (!sk)
 		return -ENOENT;
 
 	if (sk->sk_state == BT_DISCONN)
@@ -2079,9 +2090,11 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
 	flags  = __le16_to_cpu(rsp->flags);
 	result = __le16_to_cpu(rsp->result);
 
-	BT_DBG("scid 0x%4.4x flags 0x%2.2x result 0x%2.2x", scid, flags, result);
+	BT_DBG("scid 0x%4.4x flags 0x%2.2x result 0x%2.2x",
+			scid, flags, result);
 
-	if (!(sk = l2cap_get_chan_by_scid(&conn->chan_list, scid)))
+	sk = l2cap_get_chan_by_scid(&conn->chan_list, scid);
+	if (!sk)
 		return 0;
 
 	switch (result) {
@@ -2142,7 +2155,8 @@ static inline int l2cap_disconnect_req(struct l2cap_conn *conn, struct l2cap_cmd
 
 	BT_DBG("scid 0x%4.4x dcid 0x%4.4x", scid, dcid);
 
-	if (!(sk = l2cap_get_chan_by_scid(&conn->chan_list, dcid)))
+	sk = l2cap_get_chan_by_scid(&conn->chan_list, dcid);
+	if (!sk)
 		return 0;
 
 	rsp.dcid = cpu_to_le16(l2cap_pi(sk)->scid);
@@ -2169,7 +2183,8 @@ static inline int l2cap_disconnect_rsp(struct l2cap_conn *conn, struct l2cap_cmd
 
 	BT_DBG("dcid 0x%4.4x scid 0x%4.4x", dcid, scid);
 
-	if (!(sk = l2cap_get_chan_by_scid(&conn->chan_list, scid)))
+	sk = l2cap_get_chan_by_scid(&conn->chan_list, scid);
+	if (!sk)
 		return 0;
 
 	l2cap_chan_del(sk, 0);
@@ -2230,7 +2245,7 @@ static inline int l2cap_information_rsp(struct l2cap_conn *conn, struct l2cap_cm
 	if (type == L2CAP_IT_FEAT_MASK) {
 		conn->feat_mask = get_unaligned_le32(rsp->data);
 
-		if (conn->feat_mask & 0x0080) {
+		if (conn->feat_mask & L2CAP_FEAT_FIXED_CHAN) {
 			struct l2cap_info_req req;
 			req.type = cpu_to_le16(L2CAP_IT_FIXED_CHAN);
 
@@ -2403,7 +2418,8 @@ drop:
 	kfree_skb(skb);
 
 done:
-	if (sk) bh_unlock_sock(sk);
+	if (sk)
+		bh_unlock_sock(sk);
 	return 0;
 }
 
@@ -2420,11 +2436,11 @@ static void l2cap_recv_frame(struct l2cap_conn *conn, struct sk_buff *skb)
 	BT_DBG("len %d, cid 0x%4.4x", len, cid);
 
 	switch (cid) {
-	case 0x0001:
+	case L2CAP_CID_SIGNALING:
 		l2cap_sig_channel(conn, skb);
 		break;
 
-	case 0x0002:
+	case L2CAP_CID_CONN_LESS:
 		psm = get_unaligned((__le16 *) skb->data);
 		skb_pull(skb, 2);
 		l2cap_conless_channel(conn, psm, skb);
@@ -2650,7 +2666,8 @@ static int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 fl
 		}
 
 		/* Allocate skb for the complete frame (with header) */
-		if (!(conn->rx_skb = bt_skb_alloc(len, GFP_ATOMIC)))
+		conn->rx_skb = bt_skb_alloc(len, GFP_ATOMIC);
+		if (!conn->rx_skb)
 			goto drop;
 
 		skb_copy_from_linear_data(skb, skb_put(conn->rx_skb, skb->len),
@@ -2704,13 +2721,13 @@ static ssize_t l2cap_sysfs_show(struct class *dev, char *buf)
 
 		str += sprintf(str, "%s %s %d %d 0x%4.4x 0x%4.4x %d %d %d\n",
 				batostr(&bt_sk(sk)->src), batostr(&bt_sk(sk)->dst),
-				sk->sk_state, btohs(pi->psm), pi->scid, pi->dcid,
-				pi->imtu, pi->omtu, pi->sec_level);
+				sk->sk_state, __le16_to_cpu(pi->psm), pi->scid,
+				pi->dcid, pi->imtu, pi->omtu, pi->sec_level);
 	}
 
 	read_unlock_bh(&l2cap_sk_list.lock);
 
-	return (str - buf);
+	return str - buf;
 }
 
 static CLASS_ATTR(l2cap, S_IRUGO, l2cap_sysfs_show, NULL);
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index 374536e050aa..e50566ebf9f9 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -679,7 +679,7 @@ static struct rfcomm_session *rfcomm_session_create(bdaddr_t *src, bdaddr_t *dst
 
 	bacpy(&addr.l2_bdaddr, dst);
 	addr.l2_family = AF_BLUETOOTH;
-	addr.l2_psm    = htobs(RFCOMM_PSM);
+	addr.l2_psm    = cpu_to_le16(RFCOMM_PSM);
 	addr.l2_cid    = 0;
 	*err = kernel_connect(sock, (struct sockaddr *) &addr, sizeof(addr), O_NONBLOCK);
 	if (*err == 0 || *err == -EINPROGRESS)
@@ -852,9 +852,9 @@ static int rfcomm_send_pn(struct rfcomm_session *s, int cr, struct rfcomm_dlc *d
 	}
 
 	if (cr && channel_mtu >= 0)
-		pn->mtu = htobs(channel_mtu);
+		pn->mtu = cpu_to_le16(channel_mtu);
 	else
-		pn->mtu = htobs(d->mtu);
+		pn->mtu = cpu_to_le16(d->mtu);
 
 	*ptr = __fcs(buf); ptr++;
 
@@ -1056,7 +1056,7 @@ static void rfcomm_make_uih(struct sk_buff *skb, u8 addr)
 
 	if (len > 127) {
 		hdr = (void *) skb_push(skb, 4);
-		put_unaligned(htobs(__len16(len)), (__le16 *) &hdr->len);
+		put_unaligned(cpu_to_le16(__len16(len)), (__le16 *) &hdr->len);
 	} else {
 		hdr = (void *) skb_push(skb, 3);
 		hdr->len = __len8(len);
@@ -1289,7 +1289,7 @@ static int rfcomm_apply_pn(struct rfcomm_dlc *d, int cr, struct rfcomm_pn *pn)
 
 	d->priority = pn->priority;
 
-	d->mtu = btohs(pn->mtu);
+	d->mtu = __le16_to_cpu(pn->mtu);
 
 	if (cr && d->mtu > s->mtu)
 		d->mtu = s->mtu;
@@ -1922,7 +1922,7 @@ static int rfcomm_add_listener(bdaddr_t *ba)
 	/* Bind socket */
 	bacpy(&addr.l2_bdaddr, ba);
 	addr.l2_family = AF_BLUETOOTH;
-	addr.l2_psm    = htobs(RFCOMM_PSM);
+	addr.l2_psm    = cpu_to_le16(RFCOMM_PSM);
 	addr.l2_cid    = 0;
 	err = kernel_bind(sock, (struct sockaddr *) &addr, sizeof(addr));
 	if (err < 0) {
diff --git a/net/bridge/br.c b/net/bridge/br.c
index 4d2c1f1cb524..9aac5213105a 100644
--- a/net/bridge/br.c
+++ b/net/bridge/br.c
@@ -65,8 +65,9 @@ static int __init br_init(void)
 	brioctl_set(br_ioctl_deviceless_stub);
 	br_handle_frame_hook = br_handle_frame;
 
-	br_fdb_get_hook = br_fdb_get;
-	br_fdb_put_hook = br_fdb_put;
+#if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE)
+	br_fdb_test_addr_hook = br_fdb_test_addr;
+#endif
 
 	return 0;
 err_out4:
@@ -95,8 +96,9 @@ static void __exit br_deinit(void)
 	synchronize_net();
 
 	br_netfilter_fini();
-	br_fdb_get_hook = NULL;
-	br_fdb_put_hook = NULL;
+#if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE)
+	br_fdb_test_addr_hook = NULL;
+#endif
 
 	br_handle_frame_hook = NULL;
 	br_fdb_fini();
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index a48f5efdb6bf..57bf05c353bc 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -71,10 +71,17 @@ static inline int br_mac_hash(const unsigned char *mac)
 	return jhash_1word(key, fdb_salt) & (BR_HASH_SIZE - 1);
 }
 
+static void fdb_rcu_free(struct rcu_head *head)
+{
+	struct net_bridge_fdb_entry *ent
+		= container_of(head, struct net_bridge_fdb_entry, rcu);
+	kmem_cache_free(br_fdb_cache, ent);
+}
+
 static inline void fdb_delete(struct net_bridge_fdb_entry *f)
 {
 	hlist_del_rcu(&f->hlist);
-	br_fdb_put(f);
+	call_rcu(&f->rcu, fdb_rcu_free);
 }
 
 void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr)
@@ -226,33 +233,26 @@ struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br,
 	return NULL;
 }
 
-/* Interface used by ATM hook that keeps a ref count */
-struct net_bridge_fdb_entry *br_fdb_get(struct net_bridge *br,
-					unsigned char *addr)
+#if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE)
+/* Interface used by ATM LANE hook to test
+ * if an addr is on some other bridge port */
+int br_fdb_test_addr(struct net_device *dev, unsigned char *addr)
 {
 	struct net_bridge_fdb_entry *fdb;
+	int ret;
+
+	if (!dev->br_port)
+		return 0;
 
 	rcu_read_lock();
-	fdb = __br_fdb_get(br, addr);
-	if (fdb && !atomic_inc_not_zero(&fdb->use_count))
-		fdb = NULL;
+	fdb = __br_fdb_get(dev->br_port->br, addr);
+	ret = fdb && fdb->dst->dev != dev &&
+		fdb->dst->state == BR_STATE_FORWARDING;
 	rcu_read_unlock();
-	return fdb;
-}
-
-static void fdb_rcu_free(struct rcu_head *head)
-{
-	struct net_bridge_fdb_entry *ent
-		= container_of(head, struct net_bridge_fdb_entry, rcu);
-	kmem_cache_free(br_fdb_cache, ent);
-}
 
-/* Set entry up for deletion with RCU  */
-void br_fdb_put(struct net_bridge_fdb_entry *ent)
-{
-	if (atomic_dec_and_test(&ent->use_count))
-		call_rcu(&ent->rcu, fdb_rcu_free);
+	return ret;
 }
+#endif /* CONFIG_ATM_LANE */
 
 /*
  * Fill buffer with forwarding table records in
@@ -326,7 +326,6 @@ static struct net_bridge_fdb_entry *fdb_create(struct hlist_head *head,
 	fdb = kmem_cache_alloc(br_fdb_cache, GFP_ATOMIC);
 	if (fdb) {
 		memcpy(fdb->addr.addr, addr, ETH_ALEN);
-		atomic_set(&fdb->use_count, 1);
 		hlist_add_head_rcu(&fdb->hlist, head);
 
 		fdb->dst = source;
@@ -398,7 +397,7 @@ void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source,
 		if (unlikely(fdb->is_local)) {
 			if (net_ratelimit())
 				printk(KERN_WARNING "%s: received packet with "
-				       " own address as source address\n",
+				       "own address as source address\n",
 				       source->dev->name);
 		} else {
 			/* fastpath: update of existing entry */
diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index e4a418fcb35b..d22f611e4004 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -228,6 +228,7 @@ int nf_bridge_copy_header(struct sk_buff *skb)
 static int br_nf_pre_routing_finish_ipv6(struct sk_buff *skb)
 {
 	struct nf_bridge_info *nf_bridge = skb->nf_bridge;
+	struct rtable *rt;
 
 	if (nf_bridge->mask & BRNF_PKT_TYPE) {
 		skb->pkt_type = PACKET_OTHERHOST;
@@ -235,12 +236,13 @@ static int br_nf_pre_routing_finish_ipv6(struct sk_buff *skb)
 	}
 	nf_bridge->mask ^= BRNF_NF_BRIDGE_PREROUTING;
 
-	skb->rtable = bridge_parent_rtable(nf_bridge->physindev);
-	if (!skb->rtable) {
+	rt = bridge_parent_rtable(nf_bridge->physindev);
+	if (!rt) {
 		kfree_skb(skb);
 		return 0;
 	}
-	dst_hold(&skb->rtable->u.dst);
+	dst_hold(&rt->u.dst);
+	skb_dst_set(skb, &rt->u.dst);
 
 	skb->dev = nf_bridge->physindev;
 	nf_bridge_push_encap_header(skb);
@@ -320,7 +322,7 @@ static int br_nf_pre_routing_finish_bridge(struct sk_buff *skb)
 
 	skb->dev = bridge_parent(skb->dev);
 	if (skb->dev) {
-		struct dst_entry *dst = skb->dst;
+		struct dst_entry *dst = skb_dst(skb);
 
 		nf_bridge_pull_encap_header(skb);
 
@@ -338,6 +340,7 @@ static int br_nf_pre_routing_finish(struct sk_buff *skb)
 	struct net_device *dev = skb->dev;
 	struct iphdr *iph = ip_hdr(skb);
 	struct nf_bridge_info *nf_bridge = skb->nf_bridge;
+	struct rtable *rt;
 	int err;
 
 	if (nf_bridge->mask & BRNF_PKT_TYPE) {
@@ -347,7 +350,6 @@ static int br_nf_pre_routing_finish(struct sk_buff *skb)
 	nf_bridge->mask ^= BRNF_NF_BRIDGE_PREROUTING;
 	if (dnat_took_place(skb)) {
 		if ((err = ip_route_input(skb, iph->daddr, iph->saddr, iph->tos, dev))) {
-			struct rtable *rt;
 			struct flowi fl = {
 				.nl_u = {
 					.ip4_u = {
@@ -373,7 +375,7 @@ static int br_nf_pre_routing_finish(struct sk_buff *skb)
 				/* - Bridged-and-DNAT'ed traffic doesn't
 				 *   require ip_forwarding. */
 				if (((struct dst_entry *)rt)->dev == dev) {
-					skb->dst = (struct dst_entry *)rt;
+					skb_dst_set(skb, (struct dst_entry *)rt);
 					goto bridged_dnat;
 				}
 				/* we are sure that forwarding is disabled, so printing
@@ -387,7 +389,7 @@ free_skb:
 			kfree_skb(skb);
 			return 0;
 		} else {
-			if (skb->dst->dev == dev) {
+			if (skb_dst(skb)->dev == dev) {
 bridged_dnat:
 				/* Tell br_nf_local_out this is a
 				 * bridged frame */
@@ -404,12 +406,13 @@ bridged_dnat:
 			skb->pkt_type = PACKET_HOST;
 		}
 	} else {
-		skb->rtable = bridge_parent_rtable(nf_bridge->physindev);
-		if (!skb->rtable) {
+		rt = bridge_parent_rtable(nf_bridge->physindev);
+		if (!rt) {
 			kfree_skb(skb);
 			return 0;
 		}
-		dst_hold(&skb->rtable->u.dst);
+		dst_hold(&rt->u.dst);
+		skb_dst_set(skb, &rt->u.dst);
 	}
 
 	skb->dev = nf_bridge->physindev;
@@ -628,10 +631,10 @@ static unsigned int br_nf_local_in(unsigned int hook, struct sk_buff *skb,
 				   const struct net_device *out,
 				   int (*okfn)(struct sk_buff *))
 {
-	if (skb->rtable && skb->rtable == bridge_parent_rtable(in)) {
-		dst_release(&skb->rtable->u.dst);
-		skb->rtable = NULL;
-	}
+	struct rtable *rt = skb_rtable(skb);
+
+	if (rt && rt == bridge_parent_rtable(in))
+		skb_dst_drop(skb);
 
 	return NF_ACCEPT;
 }
@@ -846,7 +849,7 @@ static unsigned int br_nf_post_routing(unsigned int hook, struct sk_buff *skb,
 		return NF_ACCEPT;
 
 #ifdef CONFIG_NETFILTER_DEBUG
-	if (skb->dst == NULL) {
+	if (skb_dst(skb) == NULL) {
 		printk(KERN_INFO "br_netfilter post_routing: skb->dst == NULL\n");
 		goto print_error;
 	}
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index b6c3b71974dc..d5b5537272b4 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -51,7 +51,6 @@ struct net_bridge_fdb_entry
 	struct net_bridge_port		*dst;
 
 	struct rcu_head			rcu;
-	atomic_t			use_count;
 	unsigned long			ageing_timer;
 	mac_addr			addr;
 	unsigned char			is_local;
@@ -154,9 +153,7 @@ extern void br_fdb_delete_by_port(struct net_bridge *br,
 				  const struct net_bridge_port *p, int do_all);
 extern struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br,
 						 const unsigned char *addr);
-extern struct net_bridge_fdb_entry *br_fdb_get(struct net_bridge *br,
-					       unsigned char *addr);
-extern void br_fdb_put(struct net_bridge_fdb_entry *ent);
+extern int br_fdb_test_addr(struct net_device *dev, unsigned char *addr);
 extern int br_fdb_fillbuf(struct net_bridge *br, void *buf,
 			  unsigned long count, unsigned long off);
 extern int br_fdb_insert(struct net_bridge *br,
@@ -242,10 +239,9 @@ extern void br_stp_port_timer_init(struct net_bridge_port *p);
 extern unsigned long br_timer_value(const struct timer_list *timer);
 
 /* br.c */
-extern struct net_bridge_fdb_entry *(*br_fdb_get_hook)(struct net_bridge *br,
-						       unsigned char *addr);
-extern void (*br_fdb_put_hook)(struct net_bridge_fdb_entry *ent);
-
+#if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE)
+extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr);
+#endif
 
 /* br_netlink.c */
 extern int br_netlink_init(void);
diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c
index 603d89248e71..ee4820aa1843 100644
--- a/net/bridge/br_sysfs_br.c
+++ b/net/bridge/br_sysfs_br.c
@@ -172,7 +172,8 @@ static ssize_t store_stp_state(struct device *d,
 	if (endp == buf)
 		return -EINVAL;
 
-	rtnl_lock();
+	if (!rtnl_trylock())
+		return restart_syscall();
 	br_stp_set_enabled(br, val);
 	rtnl_unlock();
 
diff --git a/net/bridge/br_sysfs_if.c b/net/bridge/br_sysfs_if.c
index 02b2d50cce4d..4a3cdf8f3813 100644
--- a/net/bridge/br_sysfs_if.c
+++ b/net/bridge/br_sysfs_if.c
@@ -189,7 +189,8 @@ static ssize_t brport_store(struct kobject * kobj,
 
 	val = simple_strtoul(buf, &endp, 0);
 	if (endp != buf) {
-		rtnl_lock();
+		if (!rtnl_trylock())
+			return restart_syscall();
 		if (p->dev && p->br && brport_attr->store) {
 			spin_lock_bh(&p->br->lock);
 			ret = brport_attr->store(p, val);
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 820252aee81f..37928d5f2840 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -142,6 +142,12 @@ static inline int ebt_basic_match(struct ebt_entry *e, struct ethhdr *h,
 	return 0;
 }
 
+static inline __pure
+struct ebt_entry *ebt_next_entry(const struct ebt_entry *entry)
+{
+	return (void *)entry + entry->next_offset;
+}
+
 /* Do some firewalling */
 unsigned int ebt_do_table (unsigned int hook, struct sk_buff *skb,
    const struct net_device *in, const struct net_device *out,
@@ -164,7 +170,7 @@ unsigned int ebt_do_table (unsigned int hook, struct sk_buff *skb,
 	mtpar.in      = tgpar.in  = in;
 	mtpar.out     = tgpar.out = out;
 	mtpar.hotdrop = &hotdrop;
-	tgpar.hooknum = hook;
+	mtpar.hooknum = tgpar.hooknum = hook;
 
 	read_lock_bh(&table->lock);
 	private = table->private;
@@ -249,8 +255,7 @@ letsreturn:
 		/* jump to a udc */
 		cs[sp].n = i + 1;
 		cs[sp].chaininfo = chaininfo;
-		cs[sp].e = (struct ebt_entry *)
-		   (((char *)point) + point->next_offset);
+		cs[sp].e = ebt_next_entry(point);
 		i = 0;
 		chaininfo = (struct ebt_entries *) (base + verdict);
 #ifdef CONFIG_NETFILTER_DEBUG
@@ -266,8 +271,7 @@ letsreturn:
 		sp++;
 		continue;
 letscontinue:
-		point = (struct ebt_entry *)
-		   (((char *)point) + point->next_offset);
+		point = ebt_next_entry(point);
 		i++;
 	}
 
@@ -787,7 +791,7 @@ static int check_chainloops(struct ebt_entries *chain, struct ebt_cl_stack *cl_s
 			/* this can't be 0, so the loop test is correct */
 			cl_s[i].cs.n = pos + 1;
 			pos = 0;
-			cl_s[i].cs.e = ((void *)e + e->next_offset);
+			cl_s[i].cs.e = ebt_next_entry(e);
 			e = (struct ebt_entry *)(hlp2->data);
 			nentries = hlp2->nentries;
 			cl_s[i].from = chain_nr;
@@ -797,7 +801,7 @@ static int check_chainloops(struct ebt_entries *chain, struct ebt_cl_stack *cl_s
 			continue;
 		}
 letscontinue:
-		e = (void *)e + e->next_offset;
+		e = ebt_next_entry(e);
 		pos++;
 	}
 	return 0;
diff --git a/net/can/af_can.c b/net/can/af_can.c
index 10f0528c3bf5..e733725b11d4 100644
--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -903,6 +903,8 @@ static __exit void can_exit(void)
 	}
 	spin_unlock(&can_rcvlists_lock);
 
+	rcu_barrier(); /* Wait for completion of call_rcu()'s */
+
 	kmem_cache_destroy(rcv_cache);
 }
 
diff --git a/net/core/datagram.c b/net/core/datagram.c
index b01a76abe1d2..58abee1f1df1 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -260,7 +260,9 @@ int skb_kill_datagram(struct sock *sk, struct sk_buff *skb, unsigned int flags)
 		spin_unlock_bh(&sk->sk_receive_queue.lock);
 	}
 
-	skb_free_datagram(sk, skb);
+	kfree_skb(skb);
+	sk_mem_reclaim_partial(sk);
+
 	return err;
 }
 
@@ -280,6 +282,7 @@ int skb_copy_datagram_iovec(const struct sk_buff *skb, int offset,
 {
 	int start = skb_headlen(skb);
 	int i, copy = start - offset;
+	struct sk_buff *frag_iter;
 
 	/* Copy header. */
 	if (copy > 0) {
@@ -320,28 +323,24 @@ int skb_copy_datagram_iovec(const struct sk_buff *skb, int offset,
 		start = end;
 	}
 
-	if (skb_shinfo(skb)->frag_list) {
-		struct sk_buff *list = skb_shinfo(skb)->frag_list;
-
-		for (; list; list = list->next) {
-			int end;
-
-			WARN_ON(start > offset + len);
-
-			end = start + list->len;
-			if ((copy = end - offset) > 0) {
-				if (copy > len)
-					copy = len;
-				if (skb_copy_datagram_iovec(list,
-							    offset - start,
-							    to, copy))
-					goto fault;
-				if ((len -= copy) == 0)
-					return 0;
-				offset += copy;
-			}
-			start = end;
+	skb_walk_frags(skb, frag_iter) {
+		int end;
+
+		WARN_ON(start > offset + len);
+
+		end = start + frag_iter->len;
+		if ((copy = end - offset) > 0) {
+			if (copy > len)
+				copy = len;
+			if (skb_copy_datagram_iovec(frag_iter,
+						    offset - start,
+						    to, copy))
+				goto fault;
+			if ((len -= copy) == 0)
+				return 0;
+			offset += copy;
 		}
+		start = end;
 	}
 	if (!len)
 		return 0;
@@ -351,30 +350,124 @@ fault:
 }
 
 /**
+ *	skb_copy_datagram_const_iovec - Copy a datagram to an iovec.
+ *	@skb: buffer to copy
+ *	@offset: offset in the buffer to start copying from
+ *	@to: io vector to copy to
+ *	@to_offset: offset in the io vector to start copying to
+ *	@len: amount of data to copy from buffer to iovec
+ *
+ *	Returns 0 or -EFAULT.
+ *	Note: the iovec is not modified during the copy.
+ */
+int skb_copy_datagram_const_iovec(const struct sk_buff *skb, int offset,
+				  const struct iovec *to, int to_offset,
+				  int len)
+{
+	int start = skb_headlen(skb);
+	int i, copy = start - offset;
+	struct sk_buff *frag_iter;
+
+	/* Copy header. */
+	if (copy > 0) {
+		if (copy > len)
+			copy = len;
+		if (memcpy_toiovecend(to, skb->data + offset, to_offset, copy))
+			goto fault;
+		if ((len -= copy) == 0)
+			return 0;
+		offset += copy;
+		to_offset += copy;
+	}
+
+	/* Copy paged appendix. Hmm... why does this look so complicated? */
+	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+		int end;
+
+		WARN_ON(start > offset + len);
+
+		end = start + skb_shinfo(skb)->frags[i].size;
+		if ((copy = end - offset) > 0) {
+			int err;
+			u8  *vaddr;
+			skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
+			struct page *page = frag->page;
+
+			if (copy > len)
+				copy = len;
+			vaddr = kmap(page);
+			err = memcpy_toiovecend(to, vaddr + frag->page_offset +
+						offset - start, to_offset, copy);
+			kunmap(page);
+			if (err)
+				goto fault;
+			if (!(len -= copy))
+				return 0;
+			offset += copy;
+			to_offset += copy;
+		}
+		start = end;
+	}
+
+	skb_walk_frags(skb, frag_iter) {
+		int end;
+
+		WARN_ON(start > offset + len);
+
+		end = start + frag_iter->len;
+		if ((copy = end - offset) > 0) {
+			if (copy > len)
+				copy = len;
+			if (skb_copy_datagram_const_iovec(frag_iter,
+							  offset - start,
+							  to, to_offset,
+							  copy))
+				goto fault;
+			if ((len -= copy) == 0)
+				return 0;
+			offset += copy;
+			to_offset += copy;
+		}
+		start = end;
+	}
+	if (!len)
+		return 0;
+
+fault:
+	return -EFAULT;
+}
+EXPORT_SYMBOL(skb_copy_datagram_const_iovec);
+
+/**
  *	skb_copy_datagram_from_iovec - Copy a datagram from an iovec.
  *	@skb: buffer to copy
  *	@offset: offset in the buffer to start copying to
  *	@from: io vector to copy to
+ *	@from_offset: offset in the io vector to start copying from
  *	@len: amount of data to copy to buffer from iovec
  *
  *	Returns 0 or -EFAULT.
- *	Note: the iovec is modified during the copy.
+ *	Note: the iovec is not modified during the copy.
  */
 int skb_copy_datagram_from_iovec(struct sk_buff *skb, int offset,
-				 struct iovec *from, int len)
+				 const struct iovec *from, int from_offset,
+				 int len)
 {
 	int start = skb_headlen(skb);
 	int i, copy = start - offset;
+	struct sk_buff *frag_iter;
 
 	/* Copy header. */
 	if (copy > 0) {
 		if (copy > len)
 			copy = len;
-		if (memcpy_fromiovec(skb->data + offset, from, copy))
+		if (memcpy_fromiovecend(skb->data + offset, from, from_offset,
+					copy))
 			goto fault;
 		if ((len -= copy) == 0)
 			return 0;
 		offset += copy;
+		from_offset += copy;
 	}
 
 	/* Copy paged appendix. Hmm... why does this look so complicated? */
@@ -393,8 +486,9 @@ int skb_copy_datagram_from_iovec(struct sk_buff *skb, int offset,
 			if (copy > len)
 				copy = len;
 			vaddr = kmap(page);
-			err = memcpy_fromiovec(vaddr + frag->page_offset +
-					       offset - start, from, copy);
+			err = memcpy_fromiovecend(vaddr + frag->page_offset +
+						  offset - start,
+						  from, from_offset, copy);
 			kunmap(page);
 			if (err)
 				goto fault;
@@ -402,32 +496,32 @@ int skb_copy_datagram_from_iovec(struct sk_buff *skb, int offset,
 			if (!(len -= copy))
 				return 0;
 			offset += copy;
+			from_offset += copy;
 		}
 		start = end;
 	}
 
-	if (skb_shinfo(skb)->frag_list) {
-		struct sk_buff *list = skb_shinfo(skb)->frag_list;
-
-		for (; list; list = list->next) {
-			int end;
-
-			WARN_ON(start > offset + len);
-
-			end = start + list->len;
-			if ((copy = end - offset) > 0) {
-				if (copy > len)
-					copy = len;
-				if (skb_copy_datagram_from_iovec(list,
-								 offset - start,
-								 from, copy))
-					goto fault;
-				if ((len -= copy) == 0)
-					return 0;
-				offset += copy;
-			}
-			start = end;
+	skb_walk_frags(skb, frag_iter) {
+		int end;
+
+		WARN_ON(start > offset + len);
+
+		end = start + frag_iter->len;
+		if ((copy = end - offset) > 0) {
+			if (copy > len)
+				copy = len;
+			if (skb_copy_datagram_from_iovec(frag_iter,
+							 offset - start,
+							 from,
+							 from_offset,
+							 copy))
+				goto fault;
+			if ((len -= copy) == 0)
+				return 0;
+			offset += copy;
+			from_offset += copy;
 		}
+		start = end;
 	}
 	if (!len)
 		return 0;
@@ -442,8 +536,9 @@ static int skb_copy_and_csum_datagram(const struct sk_buff *skb, int offset,
 				      __wsum *csump)
 {
 	int start = skb_headlen(skb);
-	int pos = 0;
 	int i, copy = start - offset;
+	struct sk_buff *frag_iter;
+	int pos = 0;
 
 	/* Copy header. */
 	if (copy > 0) {
@@ -494,33 +589,29 @@ static int skb_copy_and_csum_datagram(const struct sk_buff *skb, int offset,
 		start = end;
 	}
 
-	if (skb_shinfo(skb)->frag_list) {
-		struct sk_buff *list = skb_shinfo(skb)->frag_list;
-
-		for (; list; list=list->next) {
-			int end;
-
-			WARN_ON(start > offset + len);
-
-			end = start + list->len;
-			if ((copy = end - offset) > 0) {
-				__wsum csum2 = 0;
-				if (copy > len)
-					copy = len;
-				if (skb_copy_and_csum_datagram(list,
-							       offset - start,
-							       to, copy,
-							       &csum2))
-					goto fault;
-				*csump = csum_block_add(*csump, csum2, pos);
-				if ((len -= copy) == 0)
-					return 0;
-				offset += copy;
-				to += copy;
-				pos += copy;
-			}
-			start = end;
+	skb_walk_frags(skb, frag_iter) {
+		int end;
+
+		WARN_ON(start > offset + len);
+
+		end = start + frag_iter->len;
+		if ((copy = end - offset) > 0) {
+			__wsum csum2 = 0;
+			if (copy > len)
+				copy = len;
+			if (skb_copy_and_csum_datagram(frag_iter,
+						       offset - start,
+						       to, copy,
+						       &csum2))
+				goto fault;
+			*csump = csum_block_add(*csump, csum2, pos);
+			if ((len -= copy) == 0)
+				return 0;
+			offset += copy;
+			to += copy;
+			pos += copy;
 		}
+		start = end;
 	}
 	if (!len)
 		return 0;
diff --git a/net/core/dev.c b/net/core/dev.c
index e2e9e4af3ace..60b572812278 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -126,6 +126,7 @@
 #include <linux/in.h>
 #include <linux/jhash.h>
 #include <linux/random.h>
+#include <trace/events/napi.h>
 
 #include "net-sysfs.h"
 
@@ -268,7 +269,8 @@ static const unsigned short netdev_lock_type[] =
 	 ARPHRD_IRDA, ARPHRD_FCPP, ARPHRD_FCAL, ARPHRD_FCPL,
 	 ARPHRD_FCFABRIC, ARPHRD_IEEE802_TR, ARPHRD_IEEE80211,
 	 ARPHRD_IEEE80211_PRISM, ARPHRD_IEEE80211_RADIOTAP, ARPHRD_PHONET,
-	 ARPHRD_PHONET_PIPE, ARPHRD_VOID, ARPHRD_NONE};
+	 ARPHRD_PHONET_PIPE, ARPHRD_IEEE802154, ARPHRD_IEEE802154_PHY,
+	 ARPHRD_VOID, ARPHRD_NONE};
 
 static const char *netdev_lock_name[] =
 	{"_xmit_NETROM", "_xmit_ETHER", "_xmit_EETHER", "_xmit_AX25",
@@ -285,7 +287,8 @@ static const char *netdev_lock_name[] =
 	 "_xmit_IRDA", "_xmit_FCPP", "_xmit_FCAL", "_xmit_FCPL",
 	 "_xmit_FCFABRIC", "_xmit_IEEE802_TR", "_xmit_IEEE80211",
 	 "_xmit_IEEE80211_PRISM", "_xmit_IEEE80211_RADIOTAP", "_xmit_PHONET",
-	 "_xmit_PHONET_PIPE", "_xmit_VOID", "_xmit_NONE"};
+	 "_xmit_PHONET_PIPE", "_xmit_IEEE802154", "_xmit_IEEE802154_PHY",
+	 "_xmit_VOID", "_xmit_NONE"};
 
 static struct lock_class_key netdev_xmit_lock_key[ARRAY_SIZE(netdev_lock_type)];
 static struct lock_class_key netdev_addr_lock_key[ARRAY_SIZE(netdev_lock_type)];
@@ -1047,7 +1050,7 @@ void dev_load(struct net *net, const char *name)
 int dev_open(struct net_device *dev)
 {
 	const struct net_device_ops *ops = dev->netdev_ops;
-	int ret = 0;
+	int ret;
 
 	ASSERT_RTNL();
 
@@ -1064,6 +1067,11 @@ int dev_open(struct net_device *dev)
 	if (!netif_device_present(dev))
 		return -ENODEV;
 
+	ret = call_netdevice_notifiers(NETDEV_PRE_UP, dev);
+	ret = notifier_to_errno(ret);
+	if (ret)
+		return ret;
+
 	/*
 	 *	Call device private open method
 	 */
@@ -1688,7 +1696,16 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
 				goto gso;
 		}
 
+		/*
+		 * If device doesnt need skb->dst, release it right now while
+		 * its hot in this cpu cache
+		 */
+		if (dev->priv_flags & IFF_XMIT_DST_RELEASE)
+			skb_dst_drop(skb);
+
 		rc = ops->ndo_start_xmit(skb, dev);
+		if (rc == 0)
+			txq_trans_update(txq);
 		/*
 		 * TODO: if skb_orphan() was called by
 		 * dev->hard_start_xmit() (for example, the unmodified
@@ -1718,6 +1735,7 @@ gso:
 			skb->next = nskb;
 			return rc;
 		}
+		txq_trans_update(txq);
 		if (unlikely(netif_tx_queue_stopped(txq) && skb->next))
 			return NETDEV_TX_BUSY;
 	} while (skb->next);
@@ -1735,8 +1753,12 @@ u16 skb_tx_hash(const struct net_device *dev, const struct sk_buff *skb)
 {
 	u32 hash;
 
-	if (skb_rx_queue_recorded(skb))
-		return skb_get_rx_queue(skb) % dev->real_num_tx_queues;
+	if (skb_rx_queue_recorded(skb)) {
+		hash = skb_get_rx_queue(skb);
+		while (unlikely (hash >= dev->real_num_tx_queues))
+			hash -= dev->real_num_tx_queues;
+		return hash;
+	}
 
 	if (skb->sk && skb->sk->sk_hash)
 		hash = skb->sk->sk_hash;
@@ -1800,7 +1822,7 @@ int dev_queue_xmit(struct sk_buff *skb)
 	if (netif_needs_gso(dev, skb))
 		goto gso;
 
-	if (skb_shinfo(skb)->frag_list &&
+	if (skb_has_frags(skb) &&
 	    !(dev->features & NETIF_F_FRAGLIST) &&
 	    __skb_linearize(skb))
 		goto out_kfree_skb;
@@ -2049,11 +2071,13 @@ static inline int deliver_skb(struct sk_buff *skb,
 }
 
 #if defined(CONFIG_BRIDGE) || defined (CONFIG_BRIDGE_MODULE)
-/* These hooks defined here for ATM */
-struct net_bridge;
-struct net_bridge_fdb_entry *(*br_fdb_get_hook)(struct net_bridge *br,
-						unsigned char *addr);
-void (*br_fdb_put_hook)(struct net_bridge_fdb_entry *ent) __read_mostly;
+
+#if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE)
+/* This hook is defined here for ATM LANE */
+int (*br_fdb_test_addr_hook)(struct net_device *dev,
+			     unsigned char *addr) __read_mostly;
+EXPORT_SYMBOL(br_fdb_test_addr_hook);
+#endif
 
 /*
  * If bridge module is loaded call bridging hook.
@@ -2061,6 +2085,8 @@ void (*br_fdb_put_hook)(struct net_bridge_fdb_entry *ent) __read_mostly;
  */
 struct sk_buff *(*br_handle_frame_hook)(struct net_bridge_port *p,
 					struct sk_buff *skb) __read_mostly;
+EXPORT_SYMBOL(br_handle_frame_hook);
+
 static inline struct sk_buff *handle_bridge(struct sk_buff *skb,
 					    struct packet_type **pt_prev, int *ret,
 					    struct net_device *orig_dev)
@@ -2284,8 +2310,6 @@ ncls:
 	if (!skb)
 		goto out;
 
-	skb_orphan(skb);
-
 	type = skb->protocol;
 	list_for_each_entry_rcu(ptype,
 			&ptype_base[ntohs(type) & PTYPE_HASH_MASK], list) {
@@ -2374,26 +2398,6 @@ void napi_gro_flush(struct napi_struct *napi)
 }
 EXPORT_SYMBOL(napi_gro_flush);
 
-void *skb_gro_header(struct sk_buff *skb, unsigned int hlen)
-{
-	unsigned int offset = skb_gro_offset(skb);
-
-	hlen += offset;
-	if (hlen <= skb_headlen(skb))
-		return skb->data + offset;
-
-	if (unlikely(!skb_shinfo(skb)->nr_frags ||
-		     skb_shinfo(skb)->frags[0].size <=
-		     hlen - skb_headlen(skb) ||
-		     PageHighMem(skb_shinfo(skb)->frags[0].page)))
-		return pskb_may_pull(skb, hlen) ? skb->data + offset : NULL;
-
-	return page_address(skb_shinfo(skb)->frags[0].page) +
-	       skb_shinfo(skb)->frags[0].page_offset +
-	       offset - skb_headlen(skb);
-}
-EXPORT_SYMBOL(skb_gro_header);
-
 int dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 {
 	struct sk_buff **pp = NULL;
@@ -2407,7 +2411,7 @@ int dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 	if (!(skb->dev->features & NETIF_F_GRO))
 		goto normal;
 
-	if (skb_is_gso(skb) || skb_shinfo(skb)->frag_list)
+	if (skb_is_gso(skb) || skb_has_frags(skb))
 		goto normal;
 
 	rcu_read_lock();
@@ -2456,10 +2460,25 @@ int dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 	ret = GRO_HELD;
 
 pull:
-	if (unlikely(!pskb_may_pull(skb, skb_gro_offset(skb)))) {
-		if (napi->gro_list == skb)
-			napi->gro_list = skb->next;
-		ret = GRO_DROP;
+	if (skb_headlen(skb) < skb_gro_offset(skb)) {
+		int grow = skb_gro_offset(skb) - skb_headlen(skb);
+
+		BUG_ON(skb->end - skb->tail < grow);
+
+		memcpy(skb_tail_pointer(skb), NAPI_GRO_CB(skb)->frag0, grow);
+
+		skb->tail += grow;
+		skb->data_len -= grow;
+
+		skb_shinfo(skb)->frags[0].page_offset += grow;
+		skb_shinfo(skb)->frags[0].size -= grow;
+
+		if (unlikely(!skb_shinfo(skb)->frags[0].size)) {
+			put_page(skb_shinfo(skb)->frags[0].page);
+			memmove(skb_shinfo(skb)->frags,
+				skb_shinfo(skb)->frags + 1,
+				--skb_shinfo(skb)->nr_frags);
+		}
 	}
 
 ok:
@@ -2509,6 +2528,22 @@ int napi_skb_finish(int ret, struct sk_buff *skb)
 }
 EXPORT_SYMBOL(napi_skb_finish);
 
+void skb_gro_reset_offset(struct sk_buff *skb)
+{
+	NAPI_GRO_CB(skb)->data_offset = 0;
+	NAPI_GRO_CB(skb)->frag0 = NULL;
+	NAPI_GRO_CB(skb)->frag0_len = 0;
+
+	if (skb->mac_header == skb->tail &&
+	    !PageHighMem(skb_shinfo(skb)->frags[0].page)) {
+		NAPI_GRO_CB(skb)->frag0 =
+			page_address(skb_shinfo(skb)->frags[0].page) +
+			skb_shinfo(skb)->frags[0].page_offset;
+		NAPI_GRO_CB(skb)->frag0_len = skb_shinfo(skb)->frags[0].size;
+	}
+}
+EXPORT_SYMBOL(skb_gro_reset_offset);
+
 int napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 {
 	skb_gro_reset_offset(skb);
@@ -2526,16 +2561,10 @@ void napi_reuse_skb(struct napi_struct *napi, struct sk_buff *skb)
 }
 EXPORT_SYMBOL(napi_reuse_skb);
 
-struct sk_buff *napi_fraginfo_skb(struct napi_struct *napi,
-				  struct napi_gro_fraginfo *info)
+struct sk_buff *napi_get_frags(struct napi_struct *napi)
 {
 	struct net_device *dev = napi->dev;
 	struct sk_buff *skb = napi->skb;
-	struct ethhdr *eth;
-	skb_frag_t *frag;
-	int i;
-
-	napi->skb = NULL;
 
 	if (!skb) {
 		skb = netdev_alloc_skb(dev, GRO_MAX_HEAD + NET_IP_ALIGN);
@@ -2543,47 +2572,14 @@ struct sk_buff *napi_fraginfo_skb(struct napi_struct *napi,
 			goto out;
 
 		skb_reserve(skb, NET_IP_ALIGN);
-	}
-
-	BUG_ON(info->nr_frags > MAX_SKB_FRAGS);
-	frag = info->frags;
-
-	for (i = 0; i < info->nr_frags; i++) {
-		skb_fill_page_desc(skb, i, frag->page, frag->page_offset,
-				   frag->size);
-		frag++;
-	}
-	skb_shinfo(skb)->nr_frags = info->nr_frags;
-
-	skb->data_len = info->len;
-	skb->len += info->len;
-	skb->truesize += info->len;
 
-	skb_reset_mac_header(skb);
-	skb_gro_reset_offset(skb);
-
-	eth = skb_gro_header(skb, sizeof(*eth));
-	if (!eth) {
-		napi_reuse_skb(napi, skb);
-		skb = NULL;
-		goto out;
+		napi->skb = skb;
 	}
 
-	skb_gro_pull(skb, sizeof(*eth));
-
-	/*
-	 * This works because the only protocols we care about don't require
-	 * special handling.  We'll fix it up properly at the end.
-	 */
-	skb->protocol = eth->h_proto;
-
-	skb->ip_summed = info->ip_summed;
-	skb->csum = info->csum;
-
 out:
 	return skb;
 }
-EXPORT_SYMBOL(napi_fraginfo_skb);
+EXPORT_SYMBOL(napi_get_frags);
 
 int napi_frags_finish(struct napi_struct *napi, struct sk_buff *skb, int ret)
 {
@@ -2613,9 +2609,46 @@ int napi_frags_finish(struct napi_struct *napi, struct sk_buff *skb, int ret)
 }
 EXPORT_SYMBOL(napi_frags_finish);
 
-int napi_gro_frags(struct napi_struct *napi, struct napi_gro_fraginfo *info)
+struct sk_buff *napi_frags_skb(struct napi_struct *napi)
 {
-	struct sk_buff *skb = napi_fraginfo_skb(napi, info);
+	struct sk_buff *skb = napi->skb;
+	struct ethhdr *eth;
+	unsigned int hlen;
+	unsigned int off;
+
+	napi->skb = NULL;
+
+	skb_reset_mac_header(skb);
+	skb_gro_reset_offset(skb);
+
+	off = skb_gro_offset(skb);
+	hlen = off + sizeof(*eth);
+	eth = skb_gro_header_fast(skb, off);
+	if (skb_gro_header_hard(skb, hlen)) {
+		eth = skb_gro_header_slow(skb, hlen, off);
+		if (unlikely(!eth)) {
+			napi_reuse_skb(napi, skb);
+			skb = NULL;
+			goto out;
+		}
+	}
+
+	skb_gro_pull(skb, sizeof(*eth));
+
+	/*
+	 * This works because the only protocols we care about don't require
+	 * special handling.  We'll fix it up properly at the end.
+	 */
+	skb->protocol = eth->h_proto;
+
+out:
+	return skb;
+}
+EXPORT_SYMBOL(napi_frags_skb);
+
+int napi_gro_frags(struct napi_struct *napi)
+{
+	struct sk_buff *skb = napi_frags_skb(napi);
 
 	if (!skb)
 		return NET_RX_DROP;
@@ -2719,7 +2752,7 @@ void netif_napi_del(struct napi_struct *napi)
 	struct sk_buff *skb, *next;
 
 	list_del_init(&napi->dev_list);
-	kfree_skb(napi->skb);
+	napi_free_frags(napi);
 
 	for (skb = napi->gro_list; skb; skb = next) {
 		next = skb->next;
@@ -2773,8 +2806,10 @@ static void net_rx_action(struct softirq_action *h)
 		 * accidently calling ->poll() when NAPI is not scheduled.
 		 */
 		work = 0;
-		if (test_bit(NAPI_STATE_SCHED, &n->state))
+		if (test_bit(NAPI_STATE_SCHED, &n->state)) {
 			work = n->poll(n, weight);
+			trace_napi_poll(n);
+		}
 
 		WARN_ON_ONCE(work > weight);
 
@@ -3424,10 +3459,10 @@ void __dev_set_rx_mode(struct net_device *dev)
 		/* Unicast addresses changes may only happen under the rtnl,
 		 * therefore calling __dev_set_promiscuity here is safe.
 		 */
-		if (dev->uc_count > 0 && !dev->uc_promisc) {
+		if (dev->uc.count > 0 && !dev->uc_promisc) {
 			__dev_set_promiscuity(dev, 1);
 			dev->uc_promisc = 1;
-		} else if (dev->uc_count == 0 && dev->uc_promisc) {
+		} else if (dev->uc.count == 0 && dev->uc_promisc) {
 			__dev_set_promiscuity(dev, -1);
 			dev->uc_promisc = 0;
 		}
@@ -3444,6 +3479,316 @@ void dev_set_rx_mode(struct net_device *dev)
 	netif_addr_unlock_bh(dev);
 }
 
+/* hw addresses list handling functions */
+
+static int __hw_addr_add(struct netdev_hw_addr_list *list, unsigned char *addr,
+			 int addr_len, unsigned char addr_type)
+{
+	struct netdev_hw_addr *ha;
+	int alloc_size;
+
+	if (addr_len > MAX_ADDR_LEN)
+		return -EINVAL;
+
+	list_for_each_entry(ha, &list->list, list) {
+		if (!memcmp(ha->addr, addr, addr_len) &&
+		    ha->type == addr_type) {
+			ha->refcount++;
+			return 0;
+		}
+	}
+
+
+	alloc_size = sizeof(*ha);
+	if (alloc_size < L1_CACHE_BYTES)
+		alloc_size = L1_CACHE_BYTES;
+	ha = kmalloc(alloc_size, GFP_ATOMIC);
+	if (!ha)
+		return -ENOMEM;
+	memcpy(ha->addr, addr, addr_len);
+	ha->type = addr_type;
+	ha->refcount = 1;
+	ha->synced = false;
+	list_add_tail_rcu(&ha->list, &list->list);
+	list->count++;
+	return 0;
+}
+
+static void ha_rcu_free(struct rcu_head *head)
+{
+	struct netdev_hw_addr *ha;
+
+	ha = container_of(head, struct netdev_hw_addr, rcu_head);
+	kfree(ha);
+}
+
+static int __hw_addr_del(struct netdev_hw_addr_list *list, unsigned char *addr,
+			 int addr_len, unsigned char addr_type)
+{
+	struct netdev_hw_addr *ha;
+
+	list_for_each_entry(ha, &list->list, list) {
+		if (!memcmp(ha->addr, addr, addr_len) &&
+		    (ha->type == addr_type || !addr_type)) {
+			if (--ha->refcount)
+				return 0;
+			list_del_rcu(&ha->list);
+			call_rcu(&ha->rcu_head, ha_rcu_free);
+			list->count--;
+			return 0;
+		}
+	}
+	return -ENOENT;
+}
+
+static int __hw_addr_add_multiple(struct netdev_hw_addr_list *to_list,
+				  struct netdev_hw_addr_list *from_list,
+				  int addr_len,
+				  unsigned char addr_type)
+{
+	int err;
+	struct netdev_hw_addr *ha, *ha2;
+	unsigned char type;
+
+	list_for_each_entry(ha, &from_list->list, list) {
+		type = addr_type ? addr_type : ha->type;
+		err = __hw_addr_add(to_list, ha->addr, addr_len, type);
+		if (err)
+			goto unroll;
+	}
+	return 0;
+
+unroll:
+	list_for_each_entry(ha2, &from_list->list, list) {
+		if (ha2 == ha)
+			break;
+		type = addr_type ? addr_type : ha2->type;
+		__hw_addr_del(to_list, ha2->addr, addr_len, type);
+	}
+	return err;
+}
+
+static void __hw_addr_del_multiple(struct netdev_hw_addr_list *to_list,
+				   struct netdev_hw_addr_list *from_list,
+				   int addr_len,
+				   unsigned char addr_type)
+{
+	struct netdev_hw_addr *ha;
+	unsigned char type;
+
+	list_for_each_entry(ha, &from_list->list, list) {
+		type = addr_type ? addr_type : ha->type;
+		__hw_addr_del(to_list, ha->addr, addr_len, addr_type);
+	}
+}
+
+static int __hw_addr_sync(struct netdev_hw_addr_list *to_list,
+			  struct netdev_hw_addr_list *from_list,
+			  int addr_len)
+{
+	int err = 0;
+	struct netdev_hw_addr *ha, *tmp;
+
+	list_for_each_entry_safe(ha, tmp, &from_list->list, list) {
+		if (!ha->synced) {
+			err = __hw_addr_add(to_list, ha->addr,
+					    addr_len, ha->type);
+			if (err)
+				break;
+			ha->synced = true;
+			ha->refcount++;
+		} else if (ha->refcount == 1) {
+			__hw_addr_del(to_list, ha->addr, addr_len, ha->type);
+			__hw_addr_del(from_list, ha->addr, addr_len, ha->type);
+		}
+	}
+	return err;
+}
+
+static void __hw_addr_unsync(struct netdev_hw_addr_list *to_list,
+			     struct netdev_hw_addr_list *from_list,
+			     int addr_len)
+{
+	struct netdev_hw_addr *ha, *tmp;
+
+	list_for_each_entry_safe(ha, tmp, &from_list->list, list) {
+		if (ha->synced) {
+			__hw_addr_del(to_list, ha->addr,
+				      addr_len, ha->type);
+			ha->synced = false;
+			__hw_addr_del(from_list, ha->addr,
+				      addr_len, ha->type);
+		}
+	}
+}
+
+static void __hw_addr_flush(struct netdev_hw_addr_list *list)
+{
+	struct netdev_hw_addr *ha, *tmp;
+
+	list_for_each_entry_safe(ha, tmp, &list->list, list) {
+		list_del_rcu(&ha->list);
+		call_rcu(&ha->rcu_head, ha_rcu_free);
+	}
+	list->count = 0;
+}
+
+static void __hw_addr_init(struct netdev_hw_addr_list *list)
+{
+	INIT_LIST_HEAD(&list->list);
+	list->count = 0;
+}
+
+/* Device addresses handling functions */
+
+static void dev_addr_flush(struct net_device *dev)
+{
+	/* rtnl_mutex must be held here */
+
+	__hw_addr_flush(&dev->dev_addrs);
+	dev->dev_addr = NULL;
+}
+
+static int dev_addr_init(struct net_device *dev)
+{
+	unsigned char addr[MAX_ADDR_LEN];
+	struct netdev_hw_addr *ha;
+	int err;
+
+	/* rtnl_mutex must be held here */
+
+	__hw_addr_init(&dev->dev_addrs);
+	memset(addr, 0, sizeof(addr));
+	err = __hw_addr_add(&dev->dev_addrs, addr, sizeof(addr),
+			    NETDEV_HW_ADDR_T_LAN);
+	if (!err) {
+		/*
+		 * Get the first (previously created) address from the list
+		 * and set dev_addr pointer to this location.
+		 */
+		ha = list_first_entry(&dev->dev_addrs.list,
+				      struct netdev_hw_addr, list);
+		dev->dev_addr = ha->addr;
+	}
+	return err;
+}
+
+/**
+ *	dev_addr_add	- Add a device address
+ *	@dev: device
+ *	@addr: address to add
+ *	@addr_type: address type
+ *
+ *	Add a device address to the device or increase the reference count if
+ *	it already exists.
+ *
+ *	The caller must hold the rtnl_mutex.
+ */
+int dev_addr_add(struct net_device *dev, unsigned char *addr,
+		 unsigned char addr_type)
+{
+	int err;
+
+	ASSERT_RTNL();
+
+	err = __hw_addr_add(&dev->dev_addrs, addr, dev->addr_len, addr_type);
+	if (!err)
+		call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
+	return err;
+}
+EXPORT_SYMBOL(dev_addr_add);
+
+/**
+ *	dev_addr_del	- Release a device address.
+ *	@dev: device
+ *	@addr: address to delete
+ *	@addr_type: address type
+ *
+ *	Release reference to a device address and remove it from the device
+ *	if the reference count drops to zero.
+ *
+ *	The caller must hold the rtnl_mutex.
+ */
+int dev_addr_del(struct net_device *dev, unsigned char *addr,
+		 unsigned char addr_type)
+{
+	int err;
+	struct netdev_hw_addr *ha;
+
+	ASSERT_RTNL();
+
+	/*
+	 * We can not remove the first address from the list because
+	 * dev->dev_addr points to that.
+	 */
+	ha = list_first_entry(&dev->dev_addrs.list,
+			      struct netdev_hw_addr, list);
+	if (ha->addr == dev->dev_addr && ha->refcount == 1)
+		return -ENOENT;
+
+	err = __hw_addr_del(&dev->dev_addrs, addr, dev->addr_len,
+			    addr_type);
+	if (!err)
+		call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
+	return err;
+}
+EXPORT_SYMBOL(dev_addr_del);
+
+/**
+ *	dev_addr_add_multiple	- Add device addresses from another device
+ *	@to_dev: device to which addresses will be added
+ *	@from_dev: device from which addresses will be added
+ *	@addr_type: address type - 0 means type will be used from from_dev
+ *
+ *	Add device addresses of the one device to another.
+ **
+ *	The caller must hold the rtnl_mutex.
+ */
+int dev_addr_add_multiple(struct net_device *to_dev,
+			  struct net_device *from_dev,
+			  unsigned char addr_type)
+{
+	int err;
+
+	ASSERT_RTNL();
+
+	if (from_dev->addr_len != to_dev->addr_len)
+		return -EINVAL;
+	err = __hw_addr_add_multiple(&to_dev->dev_addrs, &from_dev->dev_addrs,
+				     to_dev->addr_len, addr_type);
+	if (!err)
+		call_netdevice_notifiers(NETDEV_CHANGEADDR, to_dev);
+	return err;
+}
+EXPORT_SYMBOL(dev_addr_add_multiple);
+
+/**
+ *	dev_addr_del_multiple	- Delete device addresses by another device
+ *	@to_dev: device where the addresses will be deleted
+ *	@from_dev: device by which addresses the addresses will be deleted
+ *	@addr_type: address type - 0 means type will used from from_dev
+ *
+ *	Deletes addresses in to device by the list of addresses in from device.
+ *
+ *	The caller must hold the rtnl_mutex.
+ */
+int dev_addr_del_multiple(struct net_device *to_dev,
+			  struct net_device *from_dev,
+			  unsigned char addr_type)
+{
+	ASSERT_RTNL();
+
+	if (from_dev->addr_len != to_dev->addr_len)
+		return -EINVAL;
+	__hw_addr_del_multiple(&to_dev->dev_addrs, &from_dev->dev_addrs,
+			       to_dev->addr_len, addr_type);
+	call_netdevice_notifiers(NETDEV_CHANGEADDR, to_dev);
+	return 0;
+}
+EXPORT_SYMBOL(dev_addr_del_multiple);
+
+/* multicast addresses handling functions */
+
 int __dev_addr_delete(struct dev_addr_list **list, int *count,
 		      void *addr, int alen, int glbl)
 {
@@ -3506,24 +3851,22 @@ int __dev_addr_add(struct dev_addr_list **list, int *count,
  *	dev_unicast_delete	- Release secondary unicast address.
  *	@dev: device
  *	@addr: address to delete
- *	@alen: length of @addr
  *
  *	Release reference to a secondary unicast address and remove it
  *	from the device if the reference count drops to zero.
  *
  * 	The caller must hold the rtnl_mutex.
  */
-int dev_unicast_delete(struct net_device *dev, void *addr, int alen)
+int dev_unicast_delete(struct net_device *dev, void *addr)
 {
 	int err;
 
 	ASSERT_RTNL();
 
-	netif_addr_lock_bh(dev);
-	err = __dev_addr_delete(&dev->uc_list, &dev->uc_count, addr, alen, 0);
+	err = __hw_addr_del(&dev->uc, addr, dev->addr_len,
+			    NETDEV_HW_ADDR_T_UNICAST);
 	if (!err)
 		__dev_set_rx_mode(dev);
-	netif_addr_unlock_bh(dev);
 	return err;
 }
 EXPORT_SYMBOL(dev_unicast_delete);
@@ -3532,24 +3875,22 @@ EXPORT_SYMBOL(dev_unicast_delete);
  *	dev_unicast_add		- add a secondary unicast address
  *	@dev: device
  *	@addr: address to add
- *	@alen: length of @addr
  *
  *	Add a secondary unicast address to the device or increase
  *	the reference count if it already exists.
  *
  *	The caller must hold the rtnl_mutex.
  */
-int dev_unicast_add(struct net_device *dev, void *addr, int alen)
+int dev_unicast_add(struct net_device *dev, void *addr)
 {
 	int err;
 
 	ASSERT_RTNL();
 
-	netif_addr_lock_bh(dev);
-	err = __dev_addr_add(&dev->uc_list, &dev->uc_count, addr, alen, 0);
+	err = __hw_addr_add(&dev->uc, addr, dev->addr_len,
+			    NETDEV_HW_ADDR_T_UNICAST);
 	if (!err)
 		__dev_set_rx_mode(dev);
-	netif_addr_unlock_bh(dev);
 	return err;
 }
 EXPORT_SYMBOL(dev_unicast_add);
@@ -3606,8 +3947,7 @@ void __dev_addr_unsync(struct dev_addr_list **to, int *to_count,
  *	@from: source device
  *
  *	Add newly added addresses to the destination device and release
- *	addresses that have no users left. The source device must be
- *	locked by netif_tx_lock_bh.
+ *	addresses that have no users left.
  *
  *	This function is intended to be called from the dev->set_rx_mode
  *	function of layered software devices.
@@ -3616,12 +3956,14 @@ int dev_unicast_sync(struct net_device *to, struct net_device *from)
 {
 	int err = 0;
 
-	netif_addr_lock_bh(to);
-	err = __dev_addr_sync(&to->uc_list, &to->uc_count,
-			      &from->uc_list, &from->uc_count);
+	ASSERT_RTNL();
+
+	if (to->addr_len != from->addr_len)
+		return -EINVAL;
+
+	err = __hw_addr_sync(&to->uc, &from->uc, to->addr_len);
 	if (!err)
 		__dev_set_rx_mode(to);
-	netif_addr_unlock_bh(to);
 	return err;
 }
 EXPORT_SYMBOL(dev_unicast_sync);
@@ -3637,18 +3979,31 @@ EXPORT_SYMBOL(dev_unicast_sync);
  */
 void dev_unicast_unsync(struct net_device *to, struct net_device *from)
 {
-	netif_addr_lock_bh(from);
-	netif_addr_lock(to);
+	ASSERT_RTNL();
 
-	__dev_addr_unsync(&to->uc_list, &to->uc_count,
-			  &from->uc_list, &from->uc_count);
-	__dev_set_rx_mode(to);
+	if (to->addr_len != from->addr_len)
+		return;
 
-	netif_addr_unlock(to);
-	netif_addr_unlock_bh(from);
+	__hw_addr_unsync(&to->uc, &from->uc, to->addr_len);
+	__dev_set_rx_mode(to);
 }
 EXPORT_SYMBOL(dev_unicast_unsync);
 
+static void dev_unicast_flush(struct net_device *dev)
+{
+	/* rtnl_mutex must be held here */
+
+	__hw_addr_flush(&dev->uc);
+}
+
+static void dev_unicast_init(struct net_device *dev)
+{
+	/* rtnl_mutex must be held here */
+
+	__hw_addr_init(&dev->uc);
+}
+
+
 static void __dev_addr_discard(struct dev_addr_list **list)
 {
 	struct dev_addr_list *tmp;
@@ -3667,9 +4022,6 @@ static void dev_addr_discard(struct net_device *dev)
 {
 	netif_addr_lock_bh(dev);
 
-	__dev_addr_discard(&dev->uc_list);
-	dev->uc_count = 0;
-
 	__dev_addr_discard(&dev->mc_list);
 	dev->mc_count = 0;
 
@@ -3853,7 +4205,7 @@ static int dev_ifsioc_locked(struct net *net, struct ifreq *ifr, unsigned int cm
 
 	switch (cmd) {
 		case SIOCGIFFLAGS:	/* Get interface flags */
-			ifr->ifr_flags = dev_get_flags(dev);
+			ifr->ifr_flags = (short) dev_get_flags(dev);
 			return 0;
 
 		case SIOCGIFMETRIC:	/* Get the metric on the interface
@@ -4262,6 +4614,7 @@ static void rollback_registered(struct net_device *dev)
 	/*
 	 *	Flush the unicast and multicast chains
 	 */
+	dev_unicast_flush(dev);
 	dev_addr_discard(dev);
 
 	if (dev->netdev_ops->ndo_uninit)
@@ -4333,39 +4686,6 @@ unsigned long netdev_fix_features(unsigned long features, const char *name)
 }
 EXPORT_SYMBOL(netdev_fix_features);
 
-/* Some devices need to (re-)set their netdev_ops inside
- * ->init() or similar.  If that happens, we have to setup
- * the compat pointers again.
- */
-void netdev_resync_ops(struct net_device *dev)
-{
-#ifdef CONFIG_COMPAT_NET_DEV_OPS
-	const struct net_device_ops *ops = dev->netdev_ops;
-
-	dev->init = ops->ndo_init;
-	dev->uninit = ops->ndo_uninit;
-	dev->open = ops->ndo_open;
-	dev->change_rx_flags = ops->ndo_change_rx_flags;
-	dev->set_rx_mode = ops->ndo_set_rx_mode;
-	dev->set_multicast_list = ops->ndo_set_multicast_list;
-	dev->set_mac_address = ops->ndo_set_mac_address;
-	dev->validate_addr = ops->ndo_validate_addr;
-	dev->do_ioctl = ops->ndo_do_ioctl;
-	dev->set_config = ops->ndo_set_config;
-	dev->change_mtu = ops->ndo_change_mtu;
-	dev->neigh_setup = ops->ndo_neigh_setup;
-	dev->tx_timeout = ops->ndo_tx_timeout;
-	dev->get_stats = ops->ndo_get_stats;
-	dev->vlan_rx_register = ops->ndo_vlan_rx_register;
-	dev->vlan_rx_add_vid = ops->ndo_vlan_rx_add_vid;
-	dev->vlan_rx_kill_vid = ops->ndo_vlan_rx_kill_vid;
-#ifdef CONFIG_NET_POLL_CONTROLLER
-	dev->poll_controller = ops->ndo_poll_controller;
-#endif
-#endif
-}
-EXPORT_SYMBOL(netdev_resync_ops);
-
 /**
  *	register_netdevice	- register a network device
  *	@dev: device to register
@@ -4405,23 +4725,6 @@ int register_netdevice(struct net_device *dev)
 
 	dev->iflink = -1;
 
-#ifdef CONFIG_COMPAT_NET_DEV_OPS
-	/* Netdevice_ops API compatibility support.
-	 * This is temporary until all network devices are converted.
-	 */
-	if (dev->netdev_ops) {
-		netdev_resync_ops(dev);
-	} else {
-		char drivername[64];
-		pr_info("%s (%s): not using net_device_ops yet\n",
-			dev->name, netdev_drivername(dev, drivername, 64));
-
-		/* This works only because net_device_ops and the
-		   compatibility structure are the same. */
-		dev->netdev_ops = (void *) &(dev->init);
-	}
-#endif
-
 	/* Init, if this function is available */
 	if (dev->netdev_ops->ndo_init) {
 		ret = dev->netdev_ops->ndo_init(dev);
@@ -4707,13 +5010,30 @@ void netdev_run_todo(void)
  *	the internal statistics structure is used.
  */
 const struct net_device_stats *dev_get_stats(struct net_device *dev)
- {
+{
 	const struct net_device_ops *ops = dev->netdev_ops;
 
 	if (ops->ndo_get_stats)
 		return ops->ndo_get_stats(dev);
-	else
-		return &dev->stats;
+	else {
+		unsigned long tx_bytes = 0, tx_packets = 0, tx_dropped = 0;
+		struct net_device_stats *stats = &dev->stats;
+		unsigned int i;
+		struct netdev_queue *txq;
+
+		for (i = 0; i < dev->num_tx_queues; i++) {
+			txq = netdev_get_tx_queue(dev, i);
+			tx_bytes   += txq->tx_bytes;
+			tx_packets += txq->tx_packets;
+			tx_dropped += txq->tx_dropped;
+		}
+		if (tx_bytes || tx_packets || tx_dropped) {
+			stats->tx_bytes   = tx_bytes;
+			stats->tx_packets = tx_packets;
+			stats->tx_dropped = tx_dropped;
+		}
+		return stats;
+	}
 }
 EXPORT_SYMBOL(dev_get_stats);
 
@@ -4748,18 +5068,18 @@ struct net_device *alloc_netdev_mq(int sizeof_priv, const char *name,
 	struct netdev_queue *tx;
 	struct net_device *dev;
 	size_t alloc_size;
-	void *p;
+	struct net_device *p;
 
 	BUG_ON(strlen(name) >= sizeof(dev->name));
 
 	alloc_size = sizeof(struct net_device);
 	if (sizeof_priv) {
 		/* ensure 32-byte alignment of private area */
-		alloc_size = (alloc_size + NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST;
+		alloc_size = ALIGN(alloc_size, NETDEV_ALIGN);
 		alloc_size += sizeof_priv;
 	}
 	/* ensure 32-byte alignment of whole construct */
-	alloc_size += NETDEV_ALIGN_CONST;
+	alloc_size += NETDEV_ALIGN - 1;
 
 	p = kzalloc(alloc_size, GFP_KERNEL);
 	if (!p) {
@@ -4771,13 +5091,17 @@ struct net_device *alloc_netdev_mq(int sizeof_priv, const char *name,
 	if (!tx) {
 		printk(KERN_ERR "alloc_netdev: Unable to allocate "
 		       "tx qdiscs.\n");
-		kfree(p);
-		return NULL;
+		goto free_p;
 	}
 
-	dev = (struct net_device *)
-		(((long)p + NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST);
+	dev = PTR_ALIGN(p, NETDEV_ALIGN);
 	dev->padded = (char *)dev - (char *)p;
+
+	if (dev_addr_init(dev))
+		goto free_tx;
+
+	dev_unicast_init(dev);
+
 	dev_net_set(dev, &init_net);
 
 	dev->_tx = tx;
@@ -4789,9 +5113,17 @@ struct net_device *alloc_netdev_mq(int sizeof_priv, const char *name,
 	netdev_init_queues(dev);
 
 	INIT_LIST_HEAD(&dev->napi_list);
+	dev->priv_flags = IFF_XMIT_DST_RELEASE;
 	setup(dev);
 	strcpy(dev->name, name);
 	return dev;
+
+free_tx:
+	kfree(tx);
+
+free_p:
+	kfree(p);
+	return NULL;
 }
 EXPORT_SYMBOL(alloc_netdev_mq);
 
@@ -4811,6 +5143,9 @@ void free_netdev(struct net_device *dev)
 
 	kfree(dev->_tx);
 
+	/* Flush device addresses */
+	dev_addr_flush(dev);
+
 	list_for_each_entry_safe(p, n, &dev->napi_list, dev_list)
 		netif_napi_del(p);
 
@@ -4970,6 +5305,7 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char
 	/*
 	 *	Flush the unicast and multicast chains
 	 */
+	dev_unicast_flush(dev);
 	dev_addr_discard(dev);
 
 	netdev_unregister_kobject(dev);
@@ -5325,12 +5661,6 @@ EXPORT_SYMBOL(net_enable_timestamp);
 EXPORT_SYMBOL(net_disable_timestamp);
 EXPORT_SYMBOL(dev_get_flags);
 
-#if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE)
-EXPORT_SYMBOL(br_handle_frame_hook);
-EXPORT_SYMBOL(br_fdb_get_hook);
-EXPORT_SYMBOL(br_fdb_put_hook);
-#endif
-
 EXPORT_SYMBOL(dev_load);
 
 EXPORT_PER_CPU_SYMBOL(softnet_data);
diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c
index 9fd0dc3cca99..9d66fa953ab7 100644
--- a/net/core/drop_monitor.c
+++ b/net/core/drop_monitor.c
@@ -22,8 +22,10 @@
 #include <linux/timer.h>
 #include <linux/bitops.h>
 #include <net/genetlink.h>
+#include <net/netevent.h>
 
-#include <trace/skb.h>
+#include <trace/events/skb.h>
+#include <trace/events/napi.h>
 
 #include <asm/unaligned.h>
 
@@ -38,7 +40,8 @@ static void send_dm_alert(struct work_struct *unused);
  * and the work handle that will send up
  * netlink alerts
  */
-struct sock *dm_sock;
+static int trace_state = TRACE_OFF;
+static spinlock_t trace_state_lock = SPIN_LOCK_UNLOCKED;
 
 struct per_cpu_dm_data {
 	struct work_struct dm_alert_work;
@@ -47,11 +50,18 @@ struct per_cpu_dm_data {
 	struct timer_list send_timer;
 };
 
+struct dm_hw_stat_delta {
+	struct net_device *dev;
+	struct list_head list;
+	struct rcu_head rcu;
+	unsigned long last_drop_val;
+};
+
 static struct genl_family net_drop_monitor_family = {
 	.id             = GENL_ID_GENERATE,
 	.hdrsize        = 0,
 	.name           = "NET_DM",
-	.version        = 1,
+	.version        = 2,
 	.maxattr        = NET_DM_CMD_MAX,
 };
 
@@ -59,19 +69,24 @@ static DEFINE_PER_CPU(struct per_cpu_dm_data, dm_cpu_data);
 
 static int dm_hit_limit = 64;
 static int dm_delay = 1;
-
+static unsigned long dm_hw_check_delta = 2*HZ;
+static LIST_HEAD(hw_stats_list);
 
 static void reset_per_cpu_data(struct per_cpu_dm_data *data)
 {
 	size_t al;
 	struct net_dm_alert_msg *msg;
+	struct nlattr *nla;
 
 	al = sizeof(struct net_dm_alert_msg);
 	al += dm_hit_limit * sizeof(struct net_dm_drop_point);
+	al += sizeof(struct nlattr);
+
 	data->skb = genlmsg_new(al, GFP_KERNEL);
 	genlmsg_put(data->skb, 0, 0, &net_drop_monitor_family,
 			0, NET_DM_CMD_ALERT);
-	msg = __nla_reserve_nohdr(data->skb, sizeof(struct net_dm_alert_msg));
+	nla = nla_reserve(data->skb, NLA_UNSPEC, sizeof(struct net_dm_alert_msg));
+	msg = nla_data(nla);
 	memset(msg, 0, al);
 	atomic_set(&data->dm_hit_count, dm_hit_limit);
 }
@@ -111,10 +126,11 @@ static void sched_send_work(unsigned long unused)
 	schedule_work(&data->dm_alert_work);
 }
 
-static void trace_kfree_skb_hit(struct sk_buff *skb, void *location)
+static void trace_drop_common(struct sk_buff *skb, void *location)
 {
 	struct net_dm_alert_msg *msg;
 	struct nlmsghdr *nlh;
+	struct nlattr *nla;
 	int i;
 	struct per_cpu_dm_data *data = &__get_cpu_var(dm_cpu_data);
 
@@ -127,7 +143,8 @@ static void trace_kfree_skb_hit(struct sk_buff *skb, void *location)
 	}
 
 	nlh = (struct nlmsghdr *)data->skb->data;
-	msg = genlmsg_data(nlmsg_data(nlh));
+	nla = genlmsg_data(nlmsg_data(nlh));
+	msg = nla_data(nla);
 	for (i = 0; i < msg->entries; i++) {
 		if (!memcmp(&location, msg->points[i].pc, sizeof(void *))) {
 			msg->points[i].count++;
@@ -139,6 +156,7 @@ static void trace_kfree_skb_hit(struct sk_buff *skb, void *location)
 	 * We need to create a new entry
 	 */
 	__nla_reserve_nohdr(data->skb, sizeof(struct net_dm_drop_point));
+	nla->nla_len += NLA_ALIGN(sizeof(struct net_dm_drop_point));
 	memcpy(msg->points[msg->entries].pc, &location, sizeof(void *));
 	msg->points[msg->entries].count = 1;
 	msg->entries++;
@@ -152,24 +170,80 @@ out:
 	return;
 }
 
+static void trace_kfree_skb_hit(struct sk_buff *skb, void *location)
+{
+	trace_drop_common(skb, location);
+}
+
+static void trace_napi_poll_hit(struct napi_struct *napi)
+{
+	struct dm_hw_stat_delta *new_stat;
+
+	/*
+	 * Ratelimit our check time to dm_hw_check_delta jiffies
+	 */
+	if (!time_after(jiffies, napi->dev->last_rx + dm_hw_check_delta))
+		return;
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(new_stat, &hw_stats_list, list) {
+		if ((new_stat->dev == napi->dev)  &&
+		    (napi->dev->stats.rx_dropped != new_stat->last_drop_val)) {
+			trace_drop_common(NULL, NULL);
+			new_stat->last_drop_val = napi->dev->stats.rx_dropped;
+			break;
+		}
+	}
+	rcu_read_unlock();
+}
+
+
+static void free_dm_hw_stat(struct rcu_head *head)
+{
+	struct dm_hw_stat_delta *n;
+	n = container_of(head, struct dm_hw_stat_delta, rcu);
+	kfree(n);
+}
+
 static int set_all_monitor_traces(int state)
 {
 	int rc = 0;
+	struct dm_hw_stat_delta *new_stat = NULL;
+	struct dm_hw_stat_delta *temp;
+
+	spin_lock(&trace_state_lock);
 
 	switch (state) {
 	case TRACE_ON:
 		rc |= register_trace_kfree_skb(trace_kfree_skb_hit);
+		rc |= register_trace_napi_poll(trace_napi_poll_hit);
 		break;
 	case TRACE_OFF:
 		rc |= unregister_trace_kfree_skb(trace_kfree_skb_hit);
+		rc |= unregister_trace_napi_poll(trace_napi_poll_hit);
 
 		tracepoint_synchronize_unregister();
+
+		/*
+		 * Clean the device list
+		 */
+		list_for_each_entry_safe(new_stat, temp, &hw_stats_list, list) {
+			if (new_stat->dev == NULL) {
+				list_del_rcu(&new_stat->list);
+				call_rcu(&new_stat->rcu, free_dm_hw_stat);
+			}
+		}
 		break;
 	default:
 		rc = 1;
 		break;
 	}
 
+	if (!rc)
+		trace_state = state;
+
+	spin_unlock(&trace_state_lock);
+
 	if (rc)
 		return -EINPROGRESS;
 	return rc;
@@ -197,6 +271,44 @@ static int net_dm_cmd_trace(struct sk_buff *skb,
 	return -ENOTSUPP;
 }
 
+static int dropmon_net_event(struct notifier_block *ev_block,
+			unsigned long event, void *ptr)
+{
+	struct net_device *dev = ptr;
+	struct dm_hw_stat_delta *new_stat = NULL;
+	struct dm_hw_stat_delta *tmp;
+
+	switch (event) {
+	case NETDEV_REGISTER:
+		new_stat = kzalloc(sizeof(struct dm_hw_stat_delta), GFP_KERNEL);
+
+		if (!new_stat)
+			goto out;
+
+		new_stat->dev = dev;
+		INIT_RCU_HEAD(&new_stat->rcu);
+		spin_lock(&trace_state_lock);
+		list_add_rcu(&new_stat->list, &hw_stats_list);
+		spin_unlock(&trace_state_lock);
+		break;
+	case NETDEV_UNREGISTER:
+		spin_lock(&trace_state_lock);
+		list_for_each_entry_safe(new_stat, tmp, &hw_stats_list, list) {
+			if (new_stat->dev == dev) {
+				new_stat->dev = NULL;
+				if (trace_state == TRACE_OFF) {
+					list_del_rcu(&new_stat->list);
+					call_rcu(&new_stat->rcu, free_dm_hw_stat);
+					break;
+				}
+			}
+		}
+		spin_unlock(&trace_state_lock);
+		break;
+	}
+out:
+	return NOTIFY_DONE;
+}
 
 static struct genl_ops dropmon_ops[] = {
 	{
@@ -213,6 +325,10 @@ static struct genl_ops dropmon_ops[] = {
 	},
 };
 
+static struct notifier_block dropmon_net_notifier = {
+	.notifier_call = dropmon_net_event
+};
+
 static int __init init_net_drop_monitor(void)
 {
 	int cpu;
@@ -236,12 +352,18 @@ static int __init init_net_drop_monitor(void)
 		ret = genl_register_ops(&net_drop_monitor_family,
 					&dropmon_ops[i]);
 		if (ret) {
-			printk(KERN_CRIT "failed to register operation %d\n",
+			printk(KERN_CRIT "Failed to register operation %d\n",
 				dropmon_ops[i].cmd);
 			goto out_unreg;
 		}
 	}
 
+	rc = register_netdevice_notifier(&dropmon_net_notifier);
+	if (rc < 0) {
+		printk(KERN_CRIT "Failed to register netdevice notifier\n");
+		goto out_unreg;
+	}
+
 	rc = 0;
 
 	for_each_present_cpu(cpu) {
@@ -252,6 +374,7 @@ static int __init init_net_drop_monitor(void)
 		data->send_timer.data = cpu;
 		data->send_timer.function = sched_send_work;
 	}
+
 	goto out;
 
 out_unreg:
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index 98691e1466b8..bd309384f8b8 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -299,7 +299,7 @@ static int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 	} else if (rule->action == FR_ACT_GOTO)
 		goto errout_free;
 
-	err = ops->configure(rule, skb, nlh, frh, tb);
+	err = ops->configure(rule, skb, frh, tb);
 	if (err < 0)
 		goto errout_free;
 
@@ -500,7 +500,7 @@ static int fib_nl_fill_rule(struct sk_buff *skb, struct fib_rule *rule,
 	if (rule->target)
 		NLA_PUT_U32(skb, FRA_GOTO, rule->target);
 
-	if (ops->fill(rule, skb, nlh, frh) < 0)
+	if (ops->fill(rule, skb, frh) < 0)
 		goto nla_put_failure;
 
 	return nlmsg_end(skb, nlh);
diff --git a/net/core/gen_estimator.c b/net/core/gen_estimator.c
index 6d62d4618cfc..78e5bfc454ae 100644
--- a/net/core/gen_estimator.c
+++ b/net/core/gen_estimator.c
@@ -128,12 +128,12 @@ static void est_timer(unsigned long arg)
 		npackets = e->bstats->packets;
 		brate = (nbytes - e->last_bytes)<<(7 - idx);
 		e->last_bytes = nbytes;
-		e->avbps += ((s64)(brate - e->avbps)) >> e->ewma_log;
+		e->avbps += (brate >> e->ewma_log) - (e->avbps >> e->ewma_log);
 		e->rate_est->bps = (e->avbps+0xF)>>5;
 
 		rate = (npackets - e->last_packets)<<(12 - idx);
 		e->last_packets = npackets;
-		e->avpps += ((long)rate - (long)e->avpps) >> e->ewma_log;
+		e->avpps += (rate >> e->ewma_log) - (e->avpps >> e->ewma_log);
 		e->rate_est->pps = (e->avpps+0x1FF)>>10;
 skip:
 		read_unlock(&est_lock);
diff --git a/net/core/iovec.c b/net/core/iovec.c
index 4c9c0121c9da..16ad45d4882b 100644
--- a/net/core/iovec.c
+++ b/net/core/iovec.c
@@ -98,6 +98,31 @@ int memcpy_toiovec(struct iovec *iov, unsigned char *kdata, int len)
 }
 
 /*
+ *	Copy kernel to iovec. Returns -EFAULT on error.
+ */
+
+int memcpy_toiovecend(const struct iovec *iov, unsigned char *kdata,
+		      int offset, int len)
+{
+	int copy;
+	for (; len > 0; ++iov) {
+		/* Skip over the finished iovecs */
+		if (unlikely(offset >= iov->iov_len)) {
+			offset -= iov->iov_len;
+			continue;
+		}
+		copy = min_t(unsigned int, iov->iov_len - offset, len);
+		if (copy_to_user(iov->iov_base + offset, kdata, copy))
+			return -EFAULT;
+		offset = 0;
+		kdata += copy;
+		len -= copy;
+	}
+
+	return 0;
+}
+
+/*
  *	Copy iovec to kernel. Returns -EFAULT on error.
  *
  *	Note: this modifies the original iovec.
@@ -122,10 +147,11 @@ int memcpy_fromiovec(unsigned char *kdata, struct iovec *iov, int len)
 }
 
 /*
- *	For use with ip_build_xmit
+ *	Copy iovec from kernel. Returns -EFAULT on error.
  */
-int memcpy_fromiovecend(unsigned char *kdata, struct iovec *iov, int offset,
-			int len)
+
+int memcpy_fromiovecend(unsigned char *kdata, const struct iovec *iov,
+			int offset, int len)
 {
 	/* Skip over the finished iovecs */
 	while (offset >= iov->iov_len) {
@@ -236,3 +262,4 @@ EXPORT_SYMBOL(csum_partial_copy_fromiovecend);
 EXPORT_SYMBOL(memcpy_fromiovec);
 EXPORT_SYMBOL(memcpy_fromiovecend);
 EXPORT_SYMBOL(memcpy_toiovec);
+EXPORT_SYMBOL(memcpy_toiovecend);
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index a1cbce7fdae5..163b4f5b0365 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -771,6 +771,28 @@ static __inline__ int neigh_max_probes(struct neighbour *n)
 		p->ucast_probes + p->app_probes + p->mcast_probes);
 }
 
+static void neigh_invalidate(struct neighbour *neigh)
+{
+	struct sk_buff *skb;
+
+	NEIGH_CACHE_STAT_INC(neigh->tbl, res_failed);
+	NEIGH_PRINTK2("neigh %p is failed.\n", neigh);
+	neigh->updated = jiffies;
+
+	/* It is very thin place. report_unreachable is very complicated
+	   routine. Particularly, it can hit the same neighbour entry!
+
+	   So that, we try to be accurate and avoid dead loop. --ANK
+	 */
+	while (neigh->nud_state == NUD_FAILED &&
+	       (skb = __skb_dequeue(&neigh->arp_queue)) != NULL) {
+		write_unlock(&neigh->lock);
+		neigh->ops->error_report(neigh, skb);
+		write_lock(&neigh->lock);
+	}
+	skb_queue_purge(&neigh->arp_queue);
+}
+
 /* Called when a timer expires for a neighbour entry. */
 
 static void neigh_timer_handler(unsigned long arg)
@@ -835,26 +857,9 @@ static void neigh_timer_handler(unsigned long arg)
 
 	if ((neigh->nud_state & (NUD_INCOMPLETE | NUD_PROBE)) &&
 	    atomic_read(&neigh->probes) >= neigh_max_probes(neigh)) {
-		struct sk_buff *skb;
-
 		neigh->nud_state = NUD_FAILED;
-		neigh->updated = jiffies;
 		notify = 1;
-		NEIGH_CACHE_STAT_INC(neigh->tbl, res_failed);
-		NEIGH_PRINTK2("neigh %p is failed.\n", neigh);
-
-		/* It is very thin place. report_unreachable is very complicated
-		   routine. Particularly, it can hit the same neighbour entry!
-
-		   So that, we try to be accurate and avoid dead loop. --ANK
-		 */
-		while (neigh->nud_state == NUD_FAILED &&
-		       (skb = __skb_dequeue(&neigh->arp_queue)) != NULL) {
-			write_unlock(&neigh->lock);
-			neigh->ops->error_report(neigh, skb);
-			write_lock(&neigh->lock);
-		}
-		skb_queue_purge(&neigh->arp_queue);
+		neigh_invalidate(neigh);
 	}
 
 	if (neigh->nud_state & NUD_IN_TIMER) {
@@ -1001,6 +1006,11 @@ int neigh_update(struct neighbour *neigh, const u8 *lladdr, u8 new,
 		neigh->nud_state = new;
 		err = 0;
 		notify = old & NUD_VALID;
+		if ((old & (NUD_INCOMPLETE | NUD_PROBE)) &&
+		    (new & NUD_FAILED)) {
+			neigh_invalidate(neigh);
+			notify = 1;
+		}
 		goto out;
 	}
 
@@ -1088,8 +1098,8 @@ int neigh_update(struct neighbour *neigh, const u8 *lladdr, u8 new,
 			struct neighbour *n1 = neigh;
 			write_unlock_bh(&neigh->lock);
 			/* On shaper/eql skb->dst->neighbour != neigh :( */
-			if (skb->dst && skb->dst->neighbour)
-				n1 = skb->dst->neighbour;
+			if (skb_dst(skb) && skb_dst(skb)->neighbour)
+				n1 = skb_dst(skb)->neighbour;
 			n1->output(skb);
 			write_lock_bh(&neigh->lock);
 		}
@@ -1182,7 +1192,7 @@ EXPORT_SYMBOL(neigh_compat_output);
 
 int neigh_resolve_output(struct sk_buff *skb)
 {
-	struct dst_entry *dst = skb->dst;
+	struct dst_entry *dst = skb_dst(skb);
 	struct neighbour *neigh;
 	int rc = 0;
 
@@ -1229,7 +1239,7 @@ EXPORT_SYMBOL(neigh_resolve_output);
 int neigh_connected_output(struct sk_buff *skb)
 {
 	int err;
-	struct dst_entry *dst = skb->dst;
+	struct dst_entry *dst = skb_dst(skb);
 	struct neighbour *neigh = dst->neighbour;
 	struct net_device *dev = neigh->dev;
 
@@ -1298,8 +1308,7 @@ void pneigh_enqueue(struct neigh_table *tbl, struct neigh_parms *p,
 		if (time_before(tbl->proxy_timer.expires, sched_next))
 			sched_next = tbl->proxy_timer.expires;
 	}
-	dst_release(skb->dst);
-	skb->dst = NULL;
+	skb_dst_drop(skb);
 	dev_hold(skb->dev);
 	__skb_queue_tail(&tbl->proxy_queue, skb);
 	mod_timer(&tbl->proxy_timer, sched_next);
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 2da59a0ac4ac..3994680c08b9 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -78,7 +78,7 @@ static ssize_t netdev_store(struct device *dev, struct device_attribute *attr,
 		goto err;
 
 	if (!rtnl_trylock())
-		return -ERESTARTSYS;
+		return restart_syscall();
 
 	if (dev_isalive(net)) {
 		if ((ret = (*set)(net, new)) == 0)
@@ -225,7 +225,8 @@ static ssize_t store_ifalias(struct device *dev, struct device_attribute *attr,
 	if (len >  0 && buf[len - 1] == '\n')
 		--count;
 
-	rtnl_lock();
+	if (!rtnl_trylock())
+		return restart_syscall();
 	ret = dev_set_alias(netdev, buf, count);
 	rtnl_unlock();
 
@@ -238,7 +239,8 @@ static ssize_t show_ifalias(struct device *dev,
 	const struct net_device *netdev = to_net_dev(dev);
 	ssize_t ret = 0;
 
-	rtnl_lock();
+	if (!rtnl_trylock())
+		return restart_syscall();
 	if (netdev->ifalias)
 		ret = sprintf(buf, "%s\n", netdev->ifalias);
 	rtnl_unlock();
@@ -497,7 +499,6 @@ int netdev_register_kobject(struct net_device *net)
 	dev->platform_data = net;
 	dev->groups = groups;
 
-	BUILD_BUG_ON(BUS_ID_SIZE < IFNAMSIZ);
 	dev_set_name(dev, "%s", net->name);
 
 #ifdef CONFIG_SYSFS
diff --git a/net/core/net-traces.c b/net/core/net-traces.c
index c8fb45665e4f..f1e982c508bb 100644
--- a/net/core/net-traces.c
+++ b/net/core/net-traces.c
@@ -19,11 +19,14 @@
 #include <linux/workqueue.h>
 #include <linux/netlink.h>
 #include <linux/net_dropmon.h>
-#include <trace/skb.h>
 
 #include <asm/unaligned.h>
 #include <asm/bitops.h>
 
+#define CREATE_TRACE_POINTS
+#include <trace/events/skb.h>
+#include <trace/events/napi.h>
 
-DEFINE_TRACE(kfree_skb);
 EXPORT_TRACEPOINT_SYMBOL_GPL(kfree_skb);
+
+EXPORT_TRACEPOINT_SYMBOL_GPL(napi_poll);
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index e3bebd36f053..b7292a2719dc 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -115,41 +115,34 @@ static void net_free(struct net *net)
 	kmem_cache_free(net_cachep, net);
 }
 
-struct net *copy_net_ns(unsigned long flags, struct net *old_net)
+static struct net *net_create(void)
 {
-	struct net *new_net = NULL;
-	int err;
-
-	get_net(old_net);
-
-	if (!(flags & CLONE_NEWNET))
-		return old_net;
-
-	err = -ENOMEM;
-	new_net = net_alloc();
-	if (!new_net)
-		goto out_err;
+	struct net *net;
+	int rv;
 
+	net = net_alloc();
+	if (!net)
+		return ERR_PTR(-ENOMEM);
 	mutex_lock(&net_mutex);
-	err = setup_net(new_net);
-	if (!err) {
+	rv = setup_net(net);
+	if (rv == 0) {
 		rtnl_lock();
-		list_add_tail(&new_net->list, &net_namespace_list);
+		list_add_tail(&net->list, &net_namespace_list);
 		rtnl_unlock();
 	}
 	mutex_unlock(&net_mutex);
+	if (rv < 0) {
+		net_free(net);
+		return ERR_PTR(rv);
+	}
+	return net;
+}
 
-	if (err)
-		goto out_free;
-out:
-	put_net(old_net);
-	return new_net;
-
-out_free:
-	net_free(new_net);
-out_err:
-	new_net = ERR_PTR(err);
-	goto out;
+struct net *copy_net_ns(unsigned long flags, struct net *old_net)
+{
+	if (!(flags & CLONE_NEWNET))
+		return get_net(old_net);
+	return net_create();
 }
 
 static void cleanup_net(struct work_struct *work)
@@ -203,9 +196,7 @@ struct net *copy_net_ns(unsigned long flags, struct net *old_net)
 static int __init net_ns_init(void)
 {
 	struct net_generic *ng;
-	int err;
 
-	printk(KERN_INFO "net_namespace: %zd bytes\n", sizeof(struct net));
 #ifdef CONFIG_NET_NS
 	net_cachep = kmem_cache_create("net_namespace", sizeof(struct net),
 					SMP_CACHE_BYTES,
@@ -224,15 +215,14 @@ static int __init net_ns_init(void)
 	rcu_assign_pointer(init_net.gen, ng);
 
 	mutex_lock(&net_mutex);
-	err = setup_net(&init_net);
+	if (setup_net(&init_net))
+		panic("Could not setup the initial network namespace");
 
 	rtnl_lock();
 	list_add_tail(&init_net.list, &net_namespace_list);
 	rtnl_unlock();
 
 	mutex_unlock(&net_mutex);
-	if (err)
-		panic("Could not setup the initial network namespace");
 
 	return 0;
 }
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 64f51eec6576..9675f312830d 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -24,6 +24,7 @@
 #include <net/tcp.h>
 #include <net/udp.h>
 #include <asm/unaligned.h>
+#include <trace/events/napi.h>
 
 /*
  * We maintain a small pool of fully-sized skbs, to make sure the
@@ -137,6 +138,7 @@ static int poll_one_napi(struct netpoll_info *npinfo,
 	set_bit(NAPI_STATE_NPSVC, &napi->state);
 
 	work = napi->poll(napi, budget);
+	trace_napi_poll(napi);
 
 	clear_bit(NAPI_STATE_NPSVC, &napi->state);
 	atomic_dec(&trapped);
@@ -300,8 +302,11 @@ static void netpoll_send_skb(struct netpoll *np, struct sk_buff *skb)
 		for (tries = jiffies_to_usecs(1)/USEC_PER_POLL;
 		     tries > 0; --tries) {
 			if (__netif_tx_trylock(txq)) {
-				if (!netif_tx_queue_stopped(txq))
+				if (!netif_tx_queue_stopped(txq)) {
 					status = ops->ndo_start_xmit(skb, dev);
+					if (status == NETDEV_TX_OK)
+						txq_trans_update(txq);
+				}
 				__netif_tx_unlock(txq);
 
 				if (status == NETDEV_TX_OK)
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 0666a827bc62..19b8c20e98a4 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -3438,6 +3438,7 @@ static __inline__ void pktgen_xmit(struct pktgen_dev *pkt_dev)
 	      retry_now:
 		ret = (*xmit)(pkt_dev->skb, odev);
 		if (likely(ret == NETDEV_TX_OK)) {
+			txq_trans_update(txq);
 			pkt_dev->last_ok = 1;
 			pkt_dev->sofar++;
 			pkt_dev->seq_num++;
@@ -3690,8 +3691,7 @@ out1:
 #ifdef CONFIG_XFRM
 	free_SAs(pkt_dev);
 #endif
-	if (pkt_dev->flows)
-		vfree(pkt_dev->flows);
+	vfree(pkt_dev->flows);
 	kfree(pkt_dev);
 	return err;
 }
@@ -3790,8 +3790,7 @@ static int pktgen_remove_device(struct pktgen_thread *t,
 #ifdef CONFIG_XFRM
 	free_SAs(pkt_dev);
 #endif
-	if (pkt_dev->flows)
-		vfree(pkt_dev->flows);
+	vfree(pkt_dev->flows);
 	kfree(pkt_dev);
 	return 0;
 }
diff --git a/net/core/skb_dma_map.c b/net/core/skb_dma_map.c
index 86234923a3b7..79687dfd6957 100644
--- a/net/core/skb_dma_map.c
+++ b/net/core/skb_dma_map.c
@@ -20,7 +20,7 @@ int skb_dma_map(struct device *dev, struct sk_buff *skb,
 	if (dma_mapping_error(dev, map))
 		goto out_err;
 
-	sp->dma_maps[0] = map;
+	sp->dma_head = map;
 	for (i = 0; i < sp->nr_frags; i++) {
 		skb_frag_t *fp = &sp->frags[i];
 
@@ -28,9 +28,8 @@ int skb_dma_map(struct device *dev, struct sk_buff *skb,
 				   fp->size, dir);
 		if (dma_mapping_error(dev, map))
 			goto unwind;
-		sp->dma_maps[i + 1] = map;
+		sp->dma_maps[i] = map;
 	}
-	sp->num_dma_maps = i + 1;
 
 	return 0;
 
@@ -38,10 +37,10 @@ unwind:
 	while (--i >= 0) {
 		skb_frag_t *fp = &sp->frags[i];
 
-		dma_unmap_page(dev, sp->dma_maps[i + 1],
+		dma_unmap_page(dev, sp->dma_maps[i],
 			       fp->size, dir);
 	}
-	dma_unmap_single(dev, sp->dma_maps[0],
+	dma_unmap_single(dev, sp->dma_head,
 			 skb_headlen(skb), dir);
 out_err:
 	return -ENOMEM;
@@ -54,12 +53,12 @@ void skb_dma_unmap(struct device *dev, struct sk_buff *skb,
 	struct skb_shared_info *sp = skb_shinfo(skb);
 	int i;
 
-	dma_unmap_single(dev, sp->dma_maps[0],
+	dma_unmap_single(dev, sp->dma_head,
 			 skb_headlen(skb), dir);
 	for (i = 0; i < sp->nr_frags; i++) {
 		skb_frag_t *fp = &sp->frags[i];
 
-		dma_unmap_page(dev, sp->dma_maps[i + 1],
+		dma_unmap_page(dev, sp->dma_maps[i],
 			       fp->size, dir);
 	}
 }
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index e505b5392e1e..9e0597d189b0 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -39,6 +39,7 @@
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
+#include <linux/kmemcheck.h>
 #include <linux/mm.h>
 #include <linux/interrupt.h>
 #include <linux/in.h>
@@ -65,7 +66,7 @@
 
 #include <asm/uaccess.h>
 #include <asm/system.h>
-#include <trace/skb.h>
+#include <trace/events/skb.h>
 
 #include "kmap_skb.h"
 
@@ -201,6 +202,12 @@ struct sk_buff *__alloc_skb(unsigned int size, gfp_t gfp_mask,
 	skb->data = data;
 	skb_reset_tail_pointer(skb);
 	skb->end = skb->tail + size;
+	kmemcheck_annotate_bitfield(skb, flags1);
+	kmemcheck_annotate_bitfield(skb, flags2);
+#ifdef NET_SKBUFF_DATA_USES_OFFSET
+	skb->mac_header = ~0U;
+#endif
+
 	/* make sure we initialize shinfo sequentially */
 	shinfo = skb_shinfo(skb);
 	atomic_set(&shinfo->dataref, 1);
@@ -210,13 +217,15 @@ struct sk_buff *__alloc_skb(unsigned int size, gfp_t gfp_mask,
 	shinfo->gso_type = 0;
 	shinfo->ip6_frag_id = 0;
 	shinfo->tx_flags.flags = 0;
-	shinfo->frag_list = NULL;
+	skb_frag_list_init(skb);
 	memset(&shinfo->hwtstamps, 0, sizeof(shinfo->hwtstamps));
 
 	if (fclone) {
 		struct sk_buff *child = skb + 1;
 		atomic_t *fclone_ref = (atomic_t *) (child + 1);
 
+		kmemcheck_annotate_bitfield(child, flags1);
+		kmemcheck_annotate_bitfield(child, flags2);
 		skb->fclone = SKB_FCLONE_ORIG;
 		atomic_set(fclone_ref, 1);
 
@@ -323,7 +332,7 @@ static void skb_clone_fraglist(struct sk_buff *skb)
 {
 	struct sk_buff *list;
 
-	for (list = skb_shinfo(skb)->frag_list; list; list = list->next)
+	skb_walk_frags(skb, list)
 		skb_get(list);
 }
 
@@ -338,7 +347,7 @@ static void skb_release_data(struct sk_buff *skb)
 				put_page(skb_shinfo(skb)->frags[i].page);
 		}
 
-		if (skb_shinfo(skb)->frag_list)
+		if (skb_has_frags(skb))
 			skb_drop_fraglist(skb);
 
 		kfree(skb->head);
@@ -381,7 +390,7 @@ static void kfree_skbmem(struct sk_buff *skb)
 
 static void skb_release_head_state(struct sk_buff *skb)
 {
-	dst_release(skb->dst);
+	skb_dst_drop(skb);
 #ifdef CONFIG_XFRM
 	secpath_put(skb->sp);
 #endif
@@ -503,7 +512,7 @@ int skb_recycle_check(struct sk_buff *skb, int skb_size)
 	shinfo->gso_type = 0;
 	shinfo->ip6_frag_id = 0;
 	shinfo->tx_flags.flags = 0;
-	shinfo->frag_list = NULL;
+	skb_frag_list_init(skb);
 	memset(&shinfo->hwtstamps, 0, sizeof(shinfo->hwtstamps));
 
 	memset(skb, 0, offsetof(struct sk_buff, tail));
@@ -521,13 +530,12 @@ static void __copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
 	new->transport_header	= old->transport_header;
 	new->network_header	= old->network_header;
 	new->mac_header		= old->mac_header;
-	new->dst		= dst_clone(old->dst);
+	skb_dst_set(new, dst_clone(skb_dst(old)));
 #ifdef CONFIG_XFRM
 	new->sp			= secpath_get(old->sp);
 #endif
 	memcpy(new->cb, old->cb, sizeof(old->cb));
-	new->csum_start		= old->csum_start;
-	new->csum_offset	= old->csum_offset;
+	new->csum		= old->csum;
 	new->local_df		= old->local_df;
 	new->pkt_type		= old->pkt_type;
 	new->ip_summed		= old->ip_summed;
@@ -538,6 +546,7 @@ static void __copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
 #endif
 	new->protocol		= old->protocol;
 	new->mark		= old->mark;
+	new->iif		= old->iif;
 	__nf_copy(new, old);
 #if defined(CONFIG_NETFILTER_XT_TARGET_TRACE) || \
     defined(CONFIG_NETFILTER_XT_TARGET_TRACE_MODULE)
@@ -550,10 +559,17 @@ static void __copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
 #endif
 #endif
 	new->vlan_tci		= old->vlan_tci;
+#if defined(CONFIG_MAC80211) || defined(CONFIG_MAC80211_MODULE)
+	new->do_not_encrypt	= old->do_not_encrypt;
+#endif
 
 	skb_copy_secmark(new, old);
 }
 
+/*
+ * You should not add any new code to this function.  Add it to
+ * __copy_skb_header above instead.
+ */
 static struct sk_buff *__skb_clone(struct sk_buff *n, struct sk_buff *skb)
 {
 #define C(x) n->x = skb->x
@@ -569,16 +585,11 @@ static struct sk_buff *__skb_clone(struct sk_buff *n, struct sk_buff *skb)
 	n->cloned = 1;
 	n->nohdr = 0;
 	n->destructor = NULL;
-	C(iif);
 	C(tail);
 	C(end);
 	C(head);
 	C(data);
 	C(truesize);
-#if defined(CONFIG_MAC80211) || defined(CONFIG_MAC80211_MODULE)
-	C(do_not_encrypt);
-	C(requeue);
-#endif
 	atomic_set(&n->users, 1);
 
 	atomic_inc(&(skb_shinfo(skb)->dataref));
@@ -633,6 +644,9 @@ struct sk_buff *skb_clone(struct sk_buff *skb, gfp_t gfp_mask)
 		n = kmem_cache_alloc(skbuff_head_cache, gfp_mask);
 		if (!n)
 			return NULL;
+
+		kmemcheck_annotate_bitfield(n, flags1);
+		kmemcheck_annotate_bitfield(n, flags2);
 		n->fclone = SKB_FCLONE_UNAVAILABLE;
 	}
 
@@ -655,7 +669,8 @@ static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
 	/* {transport,network,mac}_header are relative to skb->head */
 	new->transport_header += offset;
 	new->network_header   += offset;
-	new->mac_header	      += offset;
+	if (skb_mac_header_was_set(new))
+		new->mac_header	      += offset;
 #endif
 	skb_shinfo(new)->gso_size = skb_shinfo(old)->gso_size;
 	skb_shinfo(new)->gso_segs = skb_shinfo(old)->gso_segs;
@@ -755,7 +770,7 @@ struct sk_buff *pskb_copy(struct sk_buff *skb, gfp_t gfp_mask)
 		skb_shinfo(n)->nr_frags = i;
 	}
 
-	if (skb_shinfo(skb)->frag_list) {
+	if (skb_has_frags(skb)) {
 		skb_shinfo(n)->frag_list = skb_shinfo(skb)->frag_list;
 		skb_clone_fraglist(n);
 	}
@@ -818,7 +833,7 @@ int pskb_expand_head(struct sk_buff *skb, int nhead, int ntail,
 	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
 		get_page(skb_shinfo(skb)->frags[i].page);
 
-	if (skb_shinfo(skb)->frag_list)
+	if (skb_has_frags(skb))
 		skb_clone_fraglist(skb);
 
 	skb_release_data(skb);
@@ -837,7 +852,8 @@ int pskb_expand_head(struct sk_buff *skb, int nhead, int ntail,
 	skb->tail	      += off;
 	skb->transport_header += off;
 	skb->network_header   += off;
-	skb->mac_header	      += off;
+	if (skb_mac_header_was_set(skb))
+		skb->mac_header += off;
 	skb->csum_start       += nhead;
 	skb->cloned   = 0;
 	skb->hdr_len  = 0;
@@ -929,7 +945,8 @@ struct sk_buff *skb_copy_expand(const struct sk_buff *skb,
 #ifdef NET_SKBUFF_DATA_USES_OFFSET
 	n->transport_header += off;
 	n->network_header   += off;
-	n->mac_header	    += off;
+	if (skb_mac_header_was_set(skb))
+		n->mac_header += off;
 #endif
 
 	return n;
@@ -1090,7 +1107,7 @@ drop_pages:
 		for (; i < nfrags; i++)
 			put_page(skb_shinfo(skb)->frags[i].page);
 
-		if (skb_shinfo(skb)->frag_list)
+		if (skb_has_frags(skb))
 			skb_drop_fraglist(skb);
 		goto done;
 	}
@@ -1185,7 +1202,7 @@ unsigned char *__pskb_pull_tail(struct sk_buff *skb, int delta)
 	/* Optimization: no fragments, no reasons to preestimate
 	 * size of pulled pages. Superb.
 	 */
-	if (!skb_shinfo(skb)->frag_list)
+	if (!skb_has_frags(skb))
 		goto pull_pages;
 
 	/* Estimate size of pulled pages. */
@@ -1282,8 +1299,9 @@ EXPORT_SYMBOL(__pskb_pull_tail);
 
 int skb_copy_bits(const struct sk_buff *skb, int offset, void *to, int len)
 {
-	int i, copy;
 	int start = skb_headlen(skb);
+	struct sk_buff *frag_iter;
+	int i, copy;
 
 	if (offset > (int)skb->len - len)
 		goto fault;
@@ -1325,28 +1343,23 @@ int skb_copy_bits(const struct sk_buff *skb, int offset, void *to, int len)
 		start = end;
 	}
 
-	if (skb_shinfo(skb)->frag_list) {
-		struct sk_buff *list = skb_shinfo(skb)->frag_list;
+	skb_walk_frags(skb, frag_iter) {
+		int end;
 
-		for (; list; list = list->next) {
-			int end;
-
-			WARN_ON(start > offset + len);
-
-			end = start + list->len;
-			if ((copy = end - offset) > 0) {
-				if (copy > len)
-					copy = len;
-				if (skb_copy_bits(list, offset - start,
-						  to, copy))
-					goto fault;
-				if ((len -= copy) == 0)
-					return 0;
-				offset += copy;
-				to     += copy;
-			}
-			start = end;
+		WARN_ON(start > offset + len);
+
+		end = start + frag_iter->len;
+		if ((copy = end - offset) > 0) {
+			if (copy > len)
+				copy = len;
+			if (skb_copy_bits(frag_iter, offset - start, to, copy))
+				goto fault;
+			if ((len -= copy) == 0)
+				return 0;
+			offset += copy;
+			to     += copy;
 		}
+		start = end;
 	}
 	if (!len)
 		return 0;
@@ -1531,6 +1544,7 @@ int skb_splice_bits(struct sk_buff *skb, unsigned int offset,
 		.ops = &sock_pipe_buf_ops,
 		.spd_release = sock_spd_release,
 	};
+	struct sk_buff *frag_iter;
 	struct sock *sk = skb->sk;
 
 	/*
@@ -1545,13 +1559,11 @@ int skb_splice_bits(struct sk_buff *skb, unsigned int offset,
 	/*
 	 * now see if we have a frag_list to map
 	 */
-	if (skb_shinfo(skb)->frag_list) {
-		struct sk_buff *list = skb_shinfo(skb)->frag_list;
-
-		for (; list && tlen; list = list->next) {
-			if (__skb_splice_bits(list, &offset, &tlen, &spd, sk))
-				break;
-		}
+	skb_walk_frags(skb, frag_iter) {
+		if (!tlen)
+			break;
+		if (__skb_splice_bits(frag_iter, &offset, &tlen, &spd, sk))
+			break;
 	}
 
 done:
@@ -1590,8 +1602,9 @@ done:
 
 int skb_store_bits(struct sk_buff *skb, int offset, const void *from, int len)
 {
-	int i, copy;
 	int start = skb_headlen(skb);
+	struct sk_buff *frag_iter;
+	int i, copy;
 
 	if (offset > (int)skb->len - len)
 		goto fault;
@@ -1632,28 +1645,24 @@ int skb_store_bits(struct sk_buff *skb, int offset, const void *from, int len)
 		start = end;
 	}
 
-	if (skb_shinfo(skb)->frag_list) {
-		struct sk_buff *list = skb_shinfo(skb)->frag_list;
+	skb_walk_frags(skb, frag_iter) {
+		int end;
 
-		for (; list; list = list->next) {
-			int end;
-
-			WARN_ON(start > offset + len);
-
-			end = start + list->len;
-			if ((copy = end - offset) > 0) {
-				if (copy > len)
-					copy = len;
-				if (skb_store_bits(list, offset - start,
-						   from, copy))
-					goto fault;
-				if ((len -= copy) == 0)
-					return 0;
-				offset += copy;
-				from += copy;
-			}
-			start = end;
+		WARN_ON(start > offset + len);
+
+		end = start + frag_iter->len;
+		if ((copy = end - offset) > 0) {
+			if (copy > len)
+				copy = len;
+			if (skb_store_bits(frag_iter, offset - start,
+					   from, copy))
+				goto fault;
+			if ((len -= copy) == 0)
+				return 0;
+			offset += copy;
+			from += copy;
 		}
+		start = end;
 	}
 	if (!len)
 		return 0;
@@ -1670,6 +1679,7 @@ __wsum skb_checksum(const struct sk_buff *skb, int offset,
 {
 	int start = skb_headlen(skb);
 	int i, copy = start - offset;
+	struct sk_buff *frag_iter;
 	int pos = 0;
 
 	/* Checksum header. */
@@ -1709,29 +1719,25 @@ __wsum skb_checksum(const struct sk_buff *skb, int offset,
 		start = end;
 	}
 
-	if (skb_shinfo(skb)->frag_list) {
-		struct sk_buff *list = skb_shinfo(skb)->frag_list;
+	skb_walk_frags(skb, frag_iter) {
+		int end;
 
-		for (; list; list = list->next) {
-			int end;
-
-			WARN_ON(start > offset + len);
-
-			end = start + list->len;
-			if ((copy = end - offset) > 0) {
-				__wsum csum2;
-				if (copy > len)
-					copy = len;
-				csum2 = skb_checksum(list, offset - start,
-						     copy, 0);
-				csum = csum_block_add(csum, csum2, pos);
-				if ((len -= copy) == 0)
-					return csum;
-				offset += copy;
-				pos    += copy;
-			}
-			start = end;
+		WARN_ON(start > offset + len);
+
+		end = start + frag_iter->len;
+		if ((copy = end - offset) > 0) {
+			__wsum csum2;
+			if (copy > len)
+				copy = len;
+			csum2 = skb_checksum(frag_iter, offset - start,
+					     copy, 0);
+			csum = csum_block_add(csum, csum2, pos);
+			if ((len -= copy) == 0)
+				return csum;
+			offset += copy;
+			pos    += copy;
 		}
+		start = end;
 	}
 	BUG_ON(len);
 
@@ -1746,6 +1752,7 @@ __wsum skb_copy_and_csum_bits(const struct sk_buff *skb, int offset,
 {
 	int start = skb_headlen(skb);
 	int i, copy = start - offset;
+	struct sk_buff *frag_iter;
 	int pos = 0;
 
 	/* Copy header. */
@@ -1790,31 +1797,27 @@ __wsum skb_copy_and_csum_bits(const struct sk_buff *skb, int offset,
 		start = end;
 	}
 
-	if (skb_shinfo(skb)->frag_list) {
-		struct sk_buff *list = skb_shinfo(skb)->frag_list;
+	skb_walk_frags(skb, frag_iter) {
+		__wsum csum2;
+		int end;
 
-		for (; list; list = list->next) {
-			__wsum csum2;
-			int end;
-
-			WARN_ON(start > offset + len);
-
-			end = start + list->len;
-			if ((copy = end - offset) > 0) {
-				if (copy > len)
-					copy = len;
-				csum2 = skb_copy_and_csum_bits(list,
-							       offset - start,
-							       to, copy, 0);
-				csum = csum_block_add(csum, csum2, pos);
-				if ((len -= copy) == 0)
-					return csum;
-				offset += copy;
-				to     += copy;
-				pos    += copy;
-			}
-			start = end;
+		WARN_ON(start > offset + len);
+
+		end = start + frag_iter->len;
+		if ((copy = end - offset) > 0) {
+			if (copy > len)
+				copy = len;
+			csum2 = skb_copy_and_csum_bits(frag_iter,
+						       offset - start,
+						       to, copy, 0);
+			csum = csum_block_add(csum, csum2, pos);
+			if ((len -= copy) == 0)
+				return csum;
+			offset += copy;
+			to     += copy;
+			pos    += copy;
 		}
+		start = end;
 	}
 	BUG_ON(len);
 	return csum;
@@ -2324,8 +2327,7 @@ next_skb:
 		st->frag_data = NULL;
 	}
 
-	if (st->root_skb == st->cur_skb &&
-	    skb_shinfo(st->root_skb)->frag_list) {
+	if (st->root_skb == st->cur_skb && skb_has_frags(st->root_skb)) {
 		st->cur_skb = skb_shinfo(st->root_skb)->frag_list;
 		st->frag_idx = 0;
 		goto next_skb;
@@ -2636,7 +2638,7 @@ struct sk_buff *skb_segment(struct sk_buff *skb, int features)
 			} else
 				skb_get(fskb2);
 
-			BUG_ON(skb_shinfo(nskb)->frag_list);
+			SKB_FRAG_ASSERT(nskb);
 			skb_shinfo(nskb)->frag_list = fskb2;
 		}
 
@@ -2661,30 +2663,40 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb)
 {
 	struct sk_buff *p = *head;
 	struct sk_buff *nskb;
+	struct skb_shared_info *skbinfo = skb_shinfo(skb);
+	struct skb_shared_info *pinfo = skb_shinfo(p);
 	unsigned int headroom;
 	unsigned int len = skb_gro_len(skb);
+	unsigned int offset = skb_gro_offset(skb);
+	unsigned int headlen = skb_headlen(skb);
 
 	if (p->len + len >= 65536)
 		return -E2BIG;
 
-	if (skb_shinfo(p)->frag_list)
+	if (pinfo->frag_list)
 		goto merge;
-	else if (skb_headlen(skb) <= skb_gro_offset(skb)) {
-		if (skb_shinfo(p)->nr_frags + skb_shinfo(skb)->nr_frags >
-		    MAX_SKB_FRAGS)
+	else if (headlen <= offset) {
+		skb_frag_t *frag;
+		skb_frag_t *frag2;
+		int i = skbinfo->nr_frags;
+		int nr_frags = pinfo->nr_frags + i;
+
+		offset -= headlen;
+
+		if (nr_frags > MAX_SKB_FRAGS)
 			return -E2BIG;
 
-		skb_shinfo(skb)->frags[0].page_offset +=
-			skb_gro_offset(skb) - skb_headlen(skb);
-		skb_shinfo(skb)->frags[0].size -=
-			skb_gro_offset(skb) - skb_headlen(skb);
+		pinfo->nr_frags = nr_frags;
+		skbinfo->nr_frags = 0;
 
-		memcpy(skb_shinfo(p)->frags + skb_shinfo(p)->nr_frags,
-		       skb_shinfo(skb)->frags,
-		       skb_shinfo(skb)->nr_frags * sizeof(skb_frag_t));
+		frag = pinfo->frags + nr_frags;
+		frag2 = skbinfo->frags + i;
+		do {
+			*--frag = *--frag2;
+		} while (--i);
 
-		skb_shinfo(p)->nr_frags += skb_shinfo(skb)->nr_frags;
-		skb_shinfo(skb)->nr_frags = 0;
+		frag->page_offset += offset;
+		frag->size -= offset;
 
 		skb->truesize -= skb->data_len;
 		skb->len -= skb->data_len;
@@ -2715,7 +2727,7 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb)
 
 	*NAPI_GRO_CB(nskb) = *NAPI_GRO_CB(p);
 	skb_shinfo(nskb)->frag_list = p;
-	skb_shinfo(nskb)->gso_size = skb_shinfo(p)->gso_size;
+	skb_shinfo(nskb)->gso_size = pinfo->gso_size;
 	skb_header_release(p);
 	nskb->prev = p;
 
@@ -2730,16 +2742,13 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb)
 	p = nskb;
 
 merge:
-	if (skb_gro_offset(skb) > skb_headlen(skb)) {
-		skb_shinfo(skb)->frags[0].page_offset +=
-			skb_gro_offset(skb) - skb_headlen(skb);
-		skb_shinfo(skb)->frags[0].size -=
-			skb_gro_offset(skb) - skb_headlen(skb);
-		skb_gro_reset_offset(skb);
-		skb_gro_pull(skb, skb_headlen(skb));
+	if (offset > headlen) {
+		skbinfo->frags[0].page_offset += offset - headlen;
+		skbinfo->frags[0].size -= offset - headlen;
+		offset = headlen;
 	}
 
-	__skb_pull(skb, skb_gro_offset(skb));
+	__skb_pull(skb, offset);
 
 	p->prev->next = skb;
 	p->prev = skb;
@@ -2786,6 +2795,7 @@ __skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg, int offset, int len)
 {
 	int start = skb_headlen(skb);
 	int i, copy = start - offset;
+	struct sk_buff *frag_iter;
 	int elt = 0;
 
 	if (copy > 0) {
@@ -2819,26 +2829,22 @@ __skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg, int offset, int len)
 		start = end;
 	}
 
-	if (skb_shinfo(skb)->frag_list) {
-		struct sk_buff *list = skb_shinfo(skb)->frag_list;
-
-		for (; list; list = list->next) {
-			int end;
+	skb_walk_frags(skb, frag_iter) {
+		int end;
 
-			WARN_ON(start > offset + len);
+		WARN_ON(start > offset + len);
 
-			end = start + list->len;
-			if ((copy = end - offset) > 0) {
-				if (copy > len)
-					copy = len;
-				elt += __skb_to_sgvec(list, sg+elt, offset - start,
-						      copy);
-				if ((len -= copy) == 0)
-					return elt;
-				offset += copy;
-			}
-			start = end;
+		end = start + frag_iter->len;
+		if ((copy = end - offset) > 0) {
+			if (copy > len)
+				copy = len;
+			elt += __skb_to_sgvec(frag_iter, sg+elt, offset - start,
+					      copy);
+			if ((len -= copy) == 0)
+				return elt;
+			offset += copy;
 		}
+		start = end;
 	}
 	BUG_ON(len);
 	return elt;
@@ -2886,7 +2892,7 @@ int skb_cow_data(struct sk_buff *skb, int tailbits, struct sk_buff **trailer)
 		return -ENOMEM;
 
 	/* Easy case. Most of packets will go this way. */
-	if (!skb_shinfo(skb)->frag_list) {
+	if (!skb_has_frags(skb)) {
 		/* A little of trouble, not enough of space for trailer.
 		 * This should not happen, when stack is tuned to generate
 		 * good frames. OK, on miss we reallocate and reserve even more
@@ -2921,7 +2927,7 @@ int skb_cow_data(struct sk_buff *skb, int tailbits, struct sk_buff **trailer)
 
 		if (skb1->next == NULL && tailbits) {
 			if (skb_shinfo(skb1)->nr_frags ||
-			    skb_shinfo(skb1)->frag_list ||
+			    skb_has_frags(skb1) ||
 			    skb_tailroom(skb1) < tailbits)
 				ntail = tailbits + 128;
 		}
@@ -2930,7 +2936,7 @@ int skb_cow_data(struct sk_buff *skb, int tailbits, struct sk_buff **trailer)
 		    skb_cloned(skb1) ||
 		    ntail ||
 		    skb_shinfo(skb1)->nr_frags ||
-		    skb_shinfo(skb1)->frag_list) {
+		    skb_has_frags(skb1)) {
 			struct sk_buff *skb2;
 
 			/* Fuck, we are miserable poor guys... */
@@ -3016,12 +3022,12 @@ EXPORT_SYMBOL_GPL(skb_tstamp_tx);
  */
 bool skb_partial_csum_set(struct sk_buff *skb, u16 start, u16 off)
 {
-	if (unlikely(start > skb->len - 2) ||
-	    unlikely((int)start + off > skb->len - 2)) {
+	if (unlikely(start > skb_headlen(skb)) ||
+	    unlikely((int)start + off > skb_headlen(skb) - 2)) {
 		if (net_ratelimit())
 			printk(KERN_WARNING
 			       "bad partial csum: csum=%u/%u len=%u\n",
-			       start, off, skb->len);
+			       start, off, skb_headlen(skb));
 		return false;
 	}
 	skb->ip_summed = CHECKSUM_PARTIAL;
diff --git a/net/core/sock.c b/net/core/sock.c
index 7dbf3ffb35cc..b0ba569bc973 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -155,6 +155,7 @@ static const char *af_family_key_strings[AF_MAX+1] = {
   "sk_lock-27"       , "sk_lock-28"          , "sk_lock-AF_CAN"      ,
   "sk_lock-AF_TIPC"  , "sk_lock-AF_BLUETOOTH", "sk_lock-IUCV"        ,
   "sk_lock-AF_RXRPC" , "sk_lock-AF_ISDN"     , "sk_lock-AF_PHONET"   ,
+  "sk_lock-AF_IEEE802154",
   "sk_lock-AF_MAX"
 };
 static const char *af_family_slock_key_strings[AF_MAX+1] = {
@@ -170,6 +171,7 @@ static const char *af_family_slock_key_strings[AF_MAX+1] = {
   "slock-27"       , "slock-28"          , "slock-AF_CAN"      ,
   "slock-AF_TIPC"  , "slock-AF_BLUETOOTH", "slock-AF_IUCV"     ,
   "slock-AF_RXRPC" , "slock-AF_ISDN"     , "slock-AF_PHONET"   ,
+  "slock-AF_IEEE802154",
   "slock-AF_MAX"
 };
 static const char *af_family_clock_key_strings[AF_MAX+1] = {
@@ -185,6 +187,7 @@ static const char *af_family_clock_key_strings[AF_MAX+1] = {
   "clock-27"       , "clock-28"          , "clock-AF_CAN"      ,
   "clock-AF_TIPC"  , "clock-AF_BLUETOOTH", "clock-AF_IUCV"     ,
   "clock-AF_RXRPC" , "clock-AF_ISDN"     , "clock-AF_PHONET"   ,
+  "clock-AF_IEEE802154",
   "clock-AF_MAX"
 };
 
@@ -212,6 +215,7 @@ __u32 sysctl_rmem_default __read_mostly = SK_RMEM_MAX;
 
 /* Maximal space eaten by iovec or ancilliary data plus some space */
 int sysctl_optmem_max __read_mostly = sizeof(unsigned long)*(2*UIO_MAXIOV+512);
+EXPORT_SYMBOL(sysctl_optmem_max);
 
 static int sock_set_timeout(long *timeo_p, char __user *optval, int optlen)
 {
@@ -444,7 +448,7 @@ static inline void sock_valbool_flag(struct sock *sk, int bit, int valbool)
 int sock_setsockopt(struct socket *sock, int level, int optname,
 		    char __user *optval, int optlen)
 {
-	struct sock *sk=sock->sk;
+	struct sock *sk = sock->sk;
 	int val;
 	int valbool;
 	struct linger ling;
@@ -463,15 +467,15 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
 	if (get_user(val, (int __user *)optval))
 		return -EFAULT;
 
-	valbool = val?1:0;
+	valbool = val ? 1 : 0;
 
 	lock_sock(sk);
 
-	switch(optname) {
+	switch (optname) {
 	case SO_DEBUG:
-		if (val && !capable(CAP_NET_ADMIN)) {
+		if (val && !capable(CAP_NET_ADMIN))
 			ret = -EACCES;
-		} else
+		else
 			sock_valbool_flag(sk, SOCK_DBG, valbool);
 		break;
 	case SO_REUSEADDR:
@@ -582,7 +586,7 @@ set_rcvbuf:
 			ret = -EINVAL;	/* 1003.1g */
 			break;
 		}
-		if (copy_from_user(&ling,optval,sizeof(ling))) {
+		if (copy_from_user(&ling, optval, sizeof(ling))) {
 			ret = -EFAULT;
 			break;
 		}
@@ -690,9 +694,8 @@ set_rcvbuf:
 	case SO_MARK:
 		if (!capable(CAP_NET_ADMIN))
 			ret = -EPERM;
-		else {
+		else
 			sk->sk_mark = val;
-		}
 		break;
 
 		/* We implement the SO_SNDLOWAT etc to
@@ -704,6 +707,7 @@ set_rcvbuf:
 	release_sock(sk);
 	return ret;
 }
+EXPORT_SYMBOL(sock_setsockopt);
 
 
 int sock_getsockopt(struct socket *sock, int level, int optname,
@@ -727,7 +731,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 
 	memset(&v, 0, sizeof(v));
 
-	switch(optname) {
+	switch (optname) {
 	case SO_DEBUG:
 		v.val = sock_flag(sk, SOCK_DBG);
 		break;
@@ -762,7 +766,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 
 	case SO_ERROR:
 		v.val = -sock_error(sk);
-		if (v.val==0)
+		if (v.val == 0)
 			v.val = xchg(&sk->sk_err_soft, 0);
 		break;
 
@@ -816,7 +820,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 		break;
 
 	case SO_RCVTIMEO:
-		lv=sizeof(struct timeval);
+		lv = sizeof(struct timeval);
 		if (sk->sk_rcvtimeo == MAX_SCHEDULE_TIMEOUT) {
 			v.tm.tv_sec = 0;
 			v.tm.tv_usec = 0;
@@ -827,7 +831,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 		break;
 
 	case SO_SNDTIMEO:
-		lv=sizeof(struct timeval);
+		lv = sizeof(struct timeval);
 		if (sk->sk_sndtimeo == MAX_SCHEDULE_TIMEOUT) {
 			v.tm.tv_sec = 0;
 			v.tm.tv_usec = 0;
@@ -842,7 +846,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 		break;
 
 	case SO_SNDLOWAT:
-		v.val=1;
+		v.val = 1;
 		break;
 
 	case SO_PASSCRED:
@@ -941,6 +945,8 @@ static struct sock *sk_prot_alloc(struct proto *prot, gfp_t priority,
 		sk = kmalloc(prot->obj_size, priority);
 
 	if (sk != NULL) {
+		kmemcheck_annotate_bitfield(sk, flags);
+
 		if (security_sk_alloc(sk, family, priority))
 			goto out_free;
 
@@ -1002,8 +1008,9 @@ struct sock *sk_alloc(struct net *net, int family, gfp_t priority,
 
 	return sk;
 }
+EXPORT_SYMBOL(sk_alloc);
 
-void sk_free(struct sock *sk)
+static void __sk_free(struct sock *sk)
 {
 	struct sk_filter *filter;
 
@@ -1027,6 +1034,18 @@ void sk_free(struct sock *sk)
 	sk_prot_free(sk->sk_prot_creator, sk);
 }
 
+void sk_free(struct sock *sk)
+{
+	/*
+	 * We substract one from sk_wmem_alloc and can know if
+	 * some packets are still in some tx queue.
+	 * If not null, sock_wfree() will call __sk_free(sk) later
+	 */
+	if (atomic_dec_and_test(&sk->sk_wmem_alloc))
+		__sk_free(sk);
+}
+EXPORT_SYMBOL(sk_free);
+
 /*
  * Last sock_put should drop referrence to sk->sk_net. It has already
  * been dropped in sk_change_net. Taking referrence to stopping namespace
@@ -1065,7 +1084,10 @@ struct sock *sk_clone(const struct sock *sk, const gfp_t priority)
 		newsk->sk_backlog.head	= newsk->sk_backlog.tail = NULL;
 
 		atomic_set(&newsk->sk_rmem_alloc, 0);
-		atomic_set(&newsk->sk_wmem_alloc, 0);
+		/*
+		 * sk_wmem_alloc set to one (see sk_free() and sock_wfree())
+		 */
+		atomic_set(&newsk->sk_wmem_alloc, 1);
 		atomic_set(&newsk->sk_omem_alloc, 0);
 		skb_queue_head_init(&newsk->sk_receive_queue);
 		skb_queue_head_init(&newsk->sk_write_queue);
@@ -1126,7 +1148,6 @@ struct sock *sk_clone(const struct sock *sk, const gfp_t priority)
 out:
 	return newsk;
 }
-
 EXPORT_SYMBOL_GPL(sk_clone);
 
 void sk_setup_caps(struct sock *sk, struct dst_entry *dst)
@@ -1170,13 +1191,20 @@ void __init sk_init(void)
 void sock_wfree(struct sk_buff *skb)
 {
 	struct sock *sk = skb->sk;
+	int res;
 
 	/* In case it might be waiting for more memory. */
-	atomic_sub(skb->truesize, &sk->sk_wmem_alloc);
+	res = atomic_sub_return(skb->truesize, &sk->sk_wmem_alloc);
 	if (!sock_flag(sk, SOCK_USE_WRITE_QUEUE))
 		sk->sk_write_space(sk);
-	sock_put(sk);
+	/*
+	 * if sk_wmem_alloc reached 0, we are last user and should
+	 * free this sock, as sk_free() call could not do it.
+	 */
+	if (res == 0)
+		__sk_free(sk);
 }
+EXPORT_SYMBOL(sock_wfree);
 
 /*
  * Read buffer destructor automatically called from kfree_skb.
@@ -1188,6 +1216,7 @@ void sock_rfree(struct sk_buff *skb)
 	atomic_sub(skb->truesize, &sk->sk_rmem_alloc);
 	sk_mem_uncharge(skb->sk, skb->truesize);
 }
+EXPORT_SYMBOL(sock_rfree);
 
 
 int sock_i_uid(struct sock *sk)
@@ -1199,6 +1228,7 @@ int sock_i_uid(struct sock *sk)
 	read_unlock(&sk->sk_callback_lock);
 	return uid;
 }
+EXPORT_SYMBOL(sock_i_uid);
 
 unsigned long sock_i_ino(struct sock *sk)
 {
@@ -1209,6 +1239,7 @@ unsigned long sock_i_ino(struct sock *sk)
 	read_unlock(&sk->sk_callback_lock);
 	return ino;
 }
+EXPORT_SYMBOL(sock_i_ino);
 
 /*
  * Allocate a skb from the socket's send buffer.
@@ -1217,7 +1248,7 @@ struct sk_buff *sock_wmalloc(struct sock *sk, unsigned long size, int force,
 			     gfp_t priority)
 {
 	if (force || atomic_read(&sk->sk_wmem_alloc) < sk->sk_sndbuf) {
-		struct sk_buff * skb = alloc_skb(size, priority);
+		struct sk_buff *skb = alloc_skb(size, priority);
 		if (skb) {
 			skb_set_owner_w(skb, sk);
 			return skb;
@@ -1225,6 +1256,7 @@ struct sk_buff *sock_wmalloc(struct sock *sk, unsigned long size, int force,
 	}
 	return NULL;
 }
+EXPORT_SYMBOL(sock_wmalloc);
 
 /*
  * Allocate a skb from the socket's receive buffer.
@@ -1261,6 +1293,7 @@ void *sock_kmalloc(struct sock *sk, int size, gfp_t priority)
 	}
 	return NULL;
 }
+EXPORT_SYMBOL(sock_kmalloc);
 
 /*
  * Free an option memory block.
@@ -1270,11 +1303,12 @@ void sock_kfree_s(struct sock *sk, void *mem, int size)
 	kfree(mem);
 	atomic_sub(size, &sk->sk_omem_alloc);
 }
+EXPORT_SYMBOL(sock_kfree_s);
 
 /* It is almost wait_for_tcp_memory minus release_sock/lock_sock.
    I think, these locks should be removed for datagram sockets.
  */
-static long sock_wait_for_wmem(struct sock * sk, long timeo)
+static long sock_wait_for_wmem(struct sock *sk, long timeo)
 {
 	DEFINE_WAIT(wait);
 
@@ -1392,6 +1426,7 @@ struct sk_buff *sock_alloc_send_skb(struct sock *sk, unsigned long size,
 {
 	return sock_alloc_send_pskb(sk, size, 0, noblock, errcode);
 }
+EXPORT_SYMBOL(sock_alloc_send_skb);
 
 static void __lock_sock(struct sock *sk)
 {
@@ -1460,7 +1495,6 @@ int sk_wait_data(struct sock *sk, long *timeo)
 	finish_wait(sk->sk_sleep, &wait);
 	return rc;
 }
-
 EXPORT_SYMBOL(sk_wait_data);
 
 /**
@@ -1541,7 +1575,6 @@ suppress_allocation:
 	atomic_sub(amt, prot->memory_allocated);
 	return 0;
 }
-
 EXPORT_SYMBOL(__sk_mem_schedule);
 
 /**
@@ -1560,7 +1593,6 @@ void __sk_mem_reclaim(struct sock *sk)
 	    (atomic_read(prot->memory_allocated) < prot->sysctl_mem[0]))
 		*prot->memory_pressure = 0;
 }
-
 EXPORT_SYMBOL(__sk_mem_reclaim);
 
 
@@ -1575,78 +1607,92 @@ int sock_no_bind(struct socket *sock, struct sockaddr *saddr, int len)
 {
 	return -EOPNOTSUPP;
 }
+EXPORT_SYMBOL(sock_no_bind);
 
 int sock_no_connect(struct socket *sock, struct sockaddr *saddr,
 		    int len, int flags)
 {
 	return -EOPNOTSUPP;
 }
+EXPORT_SYMBOL(sock_no_connect);
 
 int sock_no_socketpair(struct socket *sock1, struct socket *sock2)
 {
 	return -EOPNOTSUPP;
 }
+EXPORT_SYMBOL(sock_no_socketpair);
 
 int sock_no_accept(struct socket *sock, struct socket *newsock, int flags)
 {
 	return -EOPNOTSUPP;
 }
+EXPORT_SYMBOL(sock_no_accept);
 
 int sock_no_getname(struct socket *sock, struct sockaddr *saddr,
 		    int *len, int peer)
 {
 	return -EOPNOTSUPP;
 }
+EXPORT_SYMBOL(sock_no_getname);
 
-unsigned int sock_no_poll(struct file * file, struct socket *sock, poll_table *pt)
+unsigned int sock_no_poll(struct file *file, struct socket *sock, poll_table *pt)
 {
 	return 0;
 }
+EXPORT_SYMBOL(sock_no_poll);
 
 int sock_no_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 {
 	return -EOPNOTSUPP;
 }
+EXPORT_SYMBOL(sock_no_ioctl);
 
 int sock_no_listen(struct socket *sock, int backlog)
 {
 	return -EOPNOTSUPP;
 }
+EXPORT_SYMBOL(sock_no_listen);
 
 int sock_no_shutdown(struct socket *sock, int how)
 {
 	return -EOPNOTSUPP;
 }
+EXPORT_SYMBOL(sock_no_shutdown);
 
 int sock_no_setsockopt(struct socket *sock, int level, int optname,
 		    char __user *optval, int optlen)
 {
 	return -EOPNOTSUPP;
 }
+EXPORT_SYMBOL(sock_no_setsockopt);
 
 int sock_no_getsockopt(struct socket *sock, int level, int optname,
 		    char __user *optval, int __user *optlen)
 {
 	return -EOPNOTSUPP;
 }
+EXPORT_SYMBOL(sock_no_getsockopt);
 
 int sock_no_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *m,
 		    size_t len)
 {
 	return -EOPNOTSUPP;
 }
+EXPORT_SYMBOL(sock_no_sendmsg);
 
 int sock_no_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *m,
 		    size_t len, int flags)
 {
 	return -EOPNOTSUPP;
 }
+EXPORT_SYMBOL(sock_no_recvmsg);
 
 int sock_no_mmap(struct file *file, struct socket *sock, struct vm_area_struct *vma)
 {
 	/* Mirror missing mmap method error code */
 	return -ENODEV;
 }
+EXPORT_SYMBOL(sock_no_mmap);
 
 ssize_t sock_no_sendpage(struct socket *sock, struct page *page, int offset, size_t size, int flags)
 {
@@ -1660,6 +1706,7 @@ ssize_t sock_no_sendpage(struct socket *sock, struct page *page, int offset, siz
 	kunmap(page);
 	return res;
 }
+EXPORT_SYMBOL(sock_no_sendpage);
 
 /*
  *	Default Socket Callbacks
@@ -1723,6 +1770,7 @@ void sk_send_sigurg(struct sock *sk)
 		if (send_sigurg(&sk->sk_socket->file->f_owner))
 			sk_wake_async(sk, SOCK_WAKE_URG, POLL_PRI);
 }
+EXPORT_SYMBOL(sk_send_sigurg);
 
 void sk_reset_timer(struct sock *sk, struct timer_list* timer,
 		    unsigned long expires)
@@ -1730,7 +1778,6 @@ void sk_reset_timer(struct sock *sk, struct timer_list* timer,
 	if (!mod_timer(timer, expires))
 		sock_hold(sk);
 }
-
 EXPORT_SYMBOL(sk_reset_timer);
 
 void sk_stop_timer(struct sock *sk, struct timer_list* timer)
@@ -1738,7 +1785,6 @@ void sk_stop_timer(struct sock *sk, struct timer_list* timer)
 	if (timer_pending(timer) && del_timer(timer))
 		__sock_put(sk);
 }
-
 EXPORT_SYMBOL(sk_stop_timer);
 
 void sock_init_data(struct socket *sock, struct sock *sk)
@@ -1795,8 +1841,10 @@ void sock_init_data(struct socket *sock, struct sock *sk)
 	sk->sk_stamp = ktime_set(-1L, 0);
 
 	atomic_set(&sk->sk_refcnt, 1);
+	atomic_set(&sk->sk_wmem_alloc, 1);
 	atomic_set(&sk->sk_drops, 0);
 }
+EXPORT_SYMBOL(sock_init_data);
 
 void lock_sock_nested(struct sock *sk, int subclass)
 {
@@ -1812,7 +1860,6 @@ void lock_sock_nested(struct sock *sk, int subclass)
 	mutex_acquire(&sk->sk_lock.dep_map, subclass, 0, _RET_IP_);
 	local_bh_enable();
 }
-
 EXPORT_SYMBOL(lock_sock_nested);
 
 void release_sock(struct sock *sk)
@@ -1895,7 +1942,6 @@ int sock_common_getsockopt(struct socket *sock, int level, int optname,
 
 	return sk->sk_prot->getsockopt(sk, level, optname, optval, optlen);
 }
-
 EXPORT_SYMBOL(sock_common_getsockopt);
 
 #ifdef CONFIG_COMPAT
@@ -1925,7 +1971,6 @@ int sock_common_recvmsg(struct kiocb *iocb, struct socket *sock,
 		msg->msg_namelen = addr_len;
 	return err;
 }
-
 EXPORT_SYMBOL(sock_common_recvmsg);
 
 /*
@@ -1938,7 +1983,6 @@ int sock_common_setsockopt(struct socket *sock, int level, int optname,
 
 	return sk->sk_prot->setsockopt(sk, level, optname, optval, optlen);
 }
-
 EXPORT_SYMBOL(sock_common_setsockopt);
 
 #ifdef CONFIG_COMPAT
@@ -1989,7 +2033,6 @@ void sk_common_release(struct sock *sk)
 	sk_refcnt_debug_release(sk);
 	sock_put(sk);
 }
-
 EXPORT_SYMBOL(sk_common_release);
 
 static DEFINE_RWLOCK(proto_list_lock);
@@ -2171,7 +2214,6 @@ out_free_sock_slab:
 out:
 	return -ENOBUFS;
 }
-
 EXPORT_SYMBOL(proto_register);
 
 void proto_unregister(struct proto *prot)
@@ -2198,7 +2240,6 @@ void proto_unregister(struct proto *prot)
 		prot->twsk_prot->twsk_slab = NULL;
 	}
 }
-
 EXPORT_SYMBOL(proto_unregister);
 
 #ifdef CONFIG_PROC_FS
@@ -2324,33 +2365,3 @@ static int __init proto_init(void)
 subsys_initcall(proto_init);
 
 #endif /* PROC_FS */
-
-EXPORT_SYMBOL(sk_alloc);
-EXPORT_SYMBOL(sk_free);
-EXPORT_SYMBOL(sk_send_sigurg);
-EXPORT_SYMBOL(sock_alloc_send_skb);
-EXPORT_SYMBOL(sock_init_data);
-EXPORT_SYMBOL(sock_kfree_s);
-EXPORT_SYMBOL(sock_kmalloc);
-EXPORT_SYMBOL(sock_no_accept);
-EXPORT_SYMBOL(sock_no_bind);
-EXPORT_SYMBOL(sock_no_connect);
-EXPORT_SYMBOL(sock_no_getname);
-EXPORT_SYMBOL(sock_no_getsockopt);
-EXPORT_SYMBOL(sock_no_ioctl);
-EXPORT_SYMBOL(sock_no_listen);
-EXPORT_SYMBOL(sock_no_mmap);
-EXPORT_SYMBOL(sock_no_poll);
-EXPORT_SYMBOL(sock_no_recvmsg);
-EXPORT_SYMBOL(sock_no_sendmsg);
-EXPORT_SYMBOL(sock_no_sendpage);
-EXPORT_SYMBOL(sock_no_setsockopt);
-EXPORT_SYMBOL(sock_no_shutdown);
-EXPORT_SYMBOL(sock_no_socketpair);
-EXPORT_SYMBOL(sock_rfree);
-EXPORT_SYMBOL(sock_setsockopt);
-EXPORT_SYMBOL(sock_wfree);
-EXPORT_SYMBOL(sock_wmalloc);
-EXPORT_SYMBOL(sock_i_uid);
-EXPORT_SYMBOL(sock_i_ino);
-EXPORT_SYMBOL(sysctl_optmem_max);
diff --git a/net/core/stream.c b/net/core/stream.c
index 8727cead64ad..a37debfeb1b2 100644
--- a/net/core/stream.c
+++ b/net/core/stream.c
@@ -33,7 +33,8 @@ void sk_stream_write_space(struct sock *sk)
 		clear_bit(SOCK_NOSPACE, &sock->flags);
 
 		if (sk->sk_sleep && waitqueue_active(sk->sk_sleep))
-			wake_up_interruptible(sk->sk_sleep);
+			wake_up_interruptible_poll(sk->sk_sleep, POLLOUT |
+						POLLWRNORM | POLLWRBAND);
 		if (sock->fasync_list && !(sk->sk_shutdown & SEND_SHUTDOWN))
 			sock_wake_async(sock, SOCK_WAKE_SPACE, POLL_OUT);
 	}
diff --git a/net/core/user_dma.c b/net/core/user_dma.c
index 164b090d5ac3..25d717ebc92e 100644
--- a/net/core/user_dma.c
+++ b/net/core/user_dma.c
@@ -51,6 +51,7 @@ int dma_skb_copy_datagram_iovec(struct dma_chan *chan,
 {
 	int start = skb_headlen(skb);
 	int i, copy = start - offset;
+	struct sk_buff *frag_iter;
 	dma_cookie_t cookie = 0;
 
 	/* Copy header. */
@@ -94,31 +95,28 @@ int dma_skb_copy_datagram_iovec(struct dma_chan *chan,
 		start = end;
 	}
 
-	if (skb_shinfo(skb)->frag_list) {
-		struct sk_buff *list = skb_shinfo(skb)->frag_list;
-
-		for (; list; list = list->next) {
-			int end;
-
-			WARN_ON(start > offset + len);
-
-			end = start + list->len;
-			copy = end - offset;
-			if (copy > 0) {
-				if (copy > len)
-					copy = len;
-				cookie = dma_skb_copy_datagram_iovec(chan, list,
-						offset - start, to, copy,
-						pinned_list);
-				if (cookie < 0)
-					goto fault;
-				len -= copy;
-				if (len == 0)
-					goto end;
-				offset += copy;
-			}
-			start = end;
+	skb_walk_frags(skb, frag_iter) {
+		int end;
+
+		WARN_ON(start > offset + len);
+
+		end = start + frag_iter->len;
+		copy = end - offset;
+		if (copy > 0) {
+			if (copy > len)
+				copy = len;
+			cookie = dma_skb_copy_datagram_iovec(chan, frag_iter,
+							     offset - start,
+							     to, copy,
+							     pinned_list);
+			if (cookie < 0)
+				goto fault;
+			len -= copy;
+			if (len == 0)
+				goto end;
+			offset += copy;
 		}
+		start = end;
 	}
 
 end:
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index d1dd95289b89..a0a36c9e6cce 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -452,7 +452,7 @@ static struct dst_entry* dccp_v4_route_skb(struct net *net, struct sock *sk,
 					   struct sk_buff *skb)
 {
 	struct rtable *rt;
-	struct flowi fl = { .oif = skb->rtable->rt_iif,
+	struct flowi fl = { .oif = skb_rtable(skb)->rt_iif,
 			    .nl_u = { .ip4_u =
 				      { .daddr = ip_hdr(skb)->saddr,
 					.saddr = ip_hdr(skb)->daddr,
@@ -507,14 +507,14 @@ static void dccp_v4_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
 	const struct iphdr *rxiph;
 	struct sk_buff *skb;
 	struct dst_entry *dst;
-	struct net *net = dev_net(rxskb->dst->dev);
+	struct net *net = dev_net(skb_dst(rxskb)->dev);
 	struct sock *ctl_sk = net->dccp.v4_ctl_sk;
 
 	/* Never send a reset in response to a reset. */
 	if (dccp_hdr(rxskb)->dccph_type == DCCP_PKT_RESET)
 		return;
 
-	if (rxskb->rtable->rt_type != RTN_LOCAL)
+	if (skb_rtable(rxskb)->rt_type != RTN_LOCAL)
 		return;
 
 	dst = dccp_v4_route_skb(net, ctl_sk, rxskb);
@@ -528,7 +528,7 @@ static void dccp_v4_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
 	rxiph = ip_hdr(rxskb);
 	dccp_hdr(skb)->dccph_checksum = dccp_v4_csum_finish(skb, rxiph->saddr,
 								 rxiph->daddr);
-	skb->dst = dst_clone(dst);
+	skb_dst_set(skb, dst_clone(dst));
 
 	bh_lock_sock(ctl_sk);
 	err = ip_build_and_send_pkt(skb, ctl_sk,
@@ -567,7 +567,7 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
 	struct dccp_skb_cb *dcb = DCCP_SKB_CB(skb);
 
 	/* Never answer to DCCP_PKT_REQUESTs send to broadcast or multicast */
-	if (skb->rtable->rt_flags & (RTCF_BROADCAST | RTCF_MULTICAST))
+	if (skb_rtable(skb)->rt_flags & (RTCF_BROADCAST | RTCF_MULTICAST))
 		return 0;	/* discard, don't send a reset here */
 
 	if (dccp_bad_service_code(sk, service)) {
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index b963f35c65f6..3e70faab2989 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -85,7 +85,7 @@ static inline __u32 dccp_v6_init_sequence(struct sk_buff *skb)
 }
 
 static void dccp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-			int type, int code, int offset, __be32 info)
+			u8 type, u8 code, int offset, __be32 info)
 {
 	struct ipv6hdr *hdr = (struct ipv6hdr *)skb->data;
 	const struct dccp_hdr *dh = (struct dccp_hdr *)(skb->data + offset);
@@ -314,8 +314,9 @@ static void dccp_v6_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
 	struct ipv6hdr *rxip6h;
 	struct sk_buff *skb;
 	struct flowi fl;
-	struct net *net = dev_net(rxskb->dst->dev);
+	struct net *net = dev_net(skb_dst(rxskb)->dev);
 	struct sock *ctl_sk = net->dccp.v6_ctl_sk;
+	struct dst_entry *dst;
 
 	if (dccp_hdr(rxskb)->dccph_type == DCCP_PKT_RESET)
 		return;
@@ -342,8 +343,9 @@ static void dccp_v6_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
 	security_skb_classify_flow(rxskb, &fl);
 
 	/* sk = NULL, but it is safe for now. RST socket required. */
-	if (!ip6_dst_lookup(ctl_sk, &skb->dst, &fl)) {
-		if (xfrm_lookup(net, &skb->dst, &fl, NULL, 0) >= 0) {
+	if (!ip6_dst_lookup(ctl_sk, &dst, &fl)) {
+		if (xfrm_lookup(net, &dst, &fl, NULL, 0) >= 0) {
+			skb_dst_set(skb, dst);
 			ip6_xmit(ctl_sk, skb, &fl, NULL, 0);
 			DCCP_INC_STATS_BH(DCCP_MIB_OUTSEGS);
 			DCCP_INC_STATS_BH(DCCP_MIB_OUTRSTS);
diff --git a/net/dccp/output.c b/net/dccp/output.c
index 36bcc00654d3..c0e88c16d088 100644
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -350,7 +350,7 @@ struct sk_buff *dccp_make_response(struct sock *sk, struct dst_entry *dst,
 	/* Reserve space for headers. */
 	skb_reserve(skb, sk->sk_prot->max_header);
 
-	skb->dst = dst_clone(dst);
+	skb_dst_set(skb, dst_clone(dst));
 
 	dreq = dccp_rsk(req);
 	if (inet_rsk(req)->acked)	/* increase ISS upon retransmission */
diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
index 9647d911f916..d351b8db0df5 100644
--- a/net/decnet/af_decnet.c
+++ b/net/decnet/af_decnet.c
@@ -1075,6 +1075,7 @@ static int dn_accept(struct socket *sock, struct socket *newsock, int flags)
 	int err = 0;
 	unsigned char type;
 	long timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
+	struct dst_entry *dst;
 
 	lock_sock(sk);
 
@@ -1102,8 +1103,9 @@ static int dn_accept(struct socket *sock, struct socket *newsock, int flags)
 	}
 	release_sock(sk);
 
-	dst_release(xchg(&newsk->sk_dst_cache, skb->dst));
-	skb->dst = NULL;
+	dst = skb_dst(skb);
+	dst_release(xchg(&newsk->sk_dst_cache, dst));
+	skb_dst_set(skb, NULL);
 
 	DN_SK(newsk)->state        = DN_CR;
 	DN_SK(newsk)->addrrem      = cb->src_port;
@@ -1238,7 +1240,7 @@ static int dn_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 		return val;
 
 	case TIOCOUTQ:
-		amount = sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc);
+		amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk);
 		if (amount < 0)
 			amount = 0;
 		err = put_user(amount, (int __user *)arg);
@@ -1250,14 +1252,8 @@ static int dn_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 		if (skb) {
 			amount = skb->len;
 		} else {
-			skb = sk->sk_receive_queue.next;
-			for (;;) {
-				if (skb ==
-				    (struct sk_buff *)&sk->sk_receive_queue)
-					break;
+			skb_queue_walk(&sk->sk_receive_queue, skb)
 				amount += skb->len;
-				skb = skb->next;
-			}
 		}
 		release_sock(sk);
 		err = put_user(amount, (int __user *)arg);
@@ -1644,13 +1640,13 @@ static int __dn_getsockopt(struct socket *sock, int level,int optname, char __us
 
 static int dn_data_ready(struct sock *sk, struct sk_buff_head *q, int flags, int target)
 {
-	struct sk_buff *skb = q->next;
+	struct sk_buff *skb;
 	int len = 0;
 
 	if (flags & MSG_OOB)
 		return !skb_queue_empty(q) ? 1 : 0;
 
-	while(skb != (struct sk_buff *)q) {
+	skb_queue_walk(q, skb) {
 		struct dn_skb_cb *cb = DN_SKB_CB(skb);
 		len += skb->len;
 
@@ -1666,8 +1662,6 @@ static int dn_data_ready(struct sock *sk, struct sk_buff_head *q, int flags, int
 		/* minimum data length for read exceeded */
 		if (len >= target)
 			return 1;
-
-		skb = skb->next;
 	}
 
 	return 0;
@@ -1683,7 +1677,7 @@ static int dn_recvmsg(struct kiocb *iocb, struct socket *sock,
 	size_t target = size > 1 ? 1 : 0;
 	size_t copied = 0;
 	int rv = 0;
-	struct sk_buff *skb, *nskb;
+	struct sk_buff *skb, *n;
 	struct dn_skb_cb *cb = NULL;
 	unsigned char eor = 0;
 	long timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
@@ -1758,7 +1752,7 @@ static int dn_recvmsg(struct kiocb *iocb, struct socket *sock,
 		finish_wait(sk->sk_sleep, &wait);
 	}
 
-	for(skb = queue->next; skb != (struct sk_buff *)queue; skb = nskb) {
+	skb_queue_walk_safe(queue, skb, n) {
 		unsigned int chunk = skb->len;
 		cb = DN_SKB_CB(skb);
 
@@ -1775,7 +1769,6 @@ static int dn_recvmsg(struct kiocb *iocb, struct socket *sock,
 			skb_pull(skb, chunk);
 
 		eor = cb->nsp_flags & 0x40;
-		nskb = skb->next;
 
 		if (skb->len == 0) {
 			skb_unlink(skb, queue);
diff --git a/net/decnet/dn_neigh.c b/net/decnet/dn_neigh.c
index 05b5aa05e50e..923786bd6d01 100644
--- a/net/decnet/dn_neigh.c
+++ b/net/decnet/dn_neigh.c
@@ -204,7 +204,7 @@ static void dn_short_error_report(struct neighbour *neigh, struct sk_buff *skb)
 
 static int dn_neigh_output_packet(struct sk_buff *skb)
 {
-	struct dst_entry *dst = skb->dst;
+	struct dst_entry *dst = skb_dst(skb);
 	struct dn_route *rt = (struct dn_route *)dst;
 	struct neighbour *neigh = dst->neighbour;
 	struct net_device *dev = neigh->dev;
@@ -224,7 +224,7 @@ static int dn_neigh_output_packet(struct sk_buff *skb)
 
 static int dn_long_output(struct sk_buff *skb)
 {
-	struct dst_entry *dst = skb->dst;
+	struct dst_entry *dst = skb_dst(skb);
 	struct neighbour *neigh = dst->neighbour;
 	struct net_device *dev = neigh->dev;
 	int headroom = dev->hard_header_len + sizeof(struct dn_long_packet) + 3;
@@ -270,7 +270,7 @@ static int dn_long_output(struct sk_buff *skb)
 
 static int dn_short_output(struct sk_buff *skb)
 {
-	struct dst_entry *dst = skb->dst;
+	struct dst_entry *dst = skb_dst(skb);
 	struct neighbour *neigh = dst->neighbour;
 	struct net_device *dev = neigh->dev;
 	int headroom = dev->hard_header_len + sizeof(struct dn_short_packet) + 2;
@@ -313,7 +313,7 @@ static int dn_short_output(struct sk_buff *skb)
  */
 static int dn_phase3_output(struct sk_buff *skb)
 {
-	struct dst_entry *dst = skb->dst;
+	struct dst_entry *dst = skb_dst(skb);
 	struct neighbour *neigh = dst->neighbour;
 	struct net_device *dev = neigh->dev;
 	int headroom = dev->hard_header_len + sizeof(struct dn_short_packet) + 2;
diff --git a/net/decnet/dn_nsp_in.c b/net/decnet/dn_nsp_in.c
index 5d8a2a56fd39..932408dca86d 100644
--- a/net/decnet/dn_nsp_in.c
+++ b/net/decnet/dn_nsp_in.c
@@ -578,6 +578,7 @@ out:
 static __inline__ int dn_queue_skb(struct sock *sk, struct sk_buff *skb, int sig, struct sk_buff_head *queue)
 {
 	int err;
+	int skb_len;
 
 	/* Cast skb->rcvbuf to unsigned... It's pointless, but reduces
 	   number of warnings when compiling with -W --ANK
@@ -592,22 +593,12 @@ static __inline__ int dn_queue_skb(struct sock *sk, struct sk_buff *skb, int sig
 	if (err)
 		goto out;
 
+	skb_len = skb->len;
 	skb_set_owner_r(skb, sk);
 	skb_queue_tail(queue, skb);
 
-	/* This code only runs from BH or BH protected context.
-	 * Therefore the plain read_lock is ok here. -DaveM
-	 */
-	read_lock(&sk->sk_callback_lock);
-	if (!sock_flag(sk, SOCK_DEAD)) {
-		struct socket *sock = sk->sk_socket;
-		wake_up_interruptible(sk->sk_sleep);
-		if (sock && sock->fasync_list &&
-		    !test_bit(SOCK_ASYNC_WAITDATA, &sock->flags))
-			__kill_fasync(sock->fasync_list, sig,
-				    (sig == SIGURG) ? POLL_PRI : POLL_IN);
-	}
-	read_unlock(&sk->sk_callback_lock);
+	if (!sock_flag(sk, SOCK_DEAD))
+		sk->sk_data_ready(sk, skb_len);
 out:
 	return err;
 }
diff --git a/net/decnet/dn_nsp_out.c b/net/decnet/dn_nsp_out.c
index 2013c25b7f5a..a65e929ce76c 100644
--- a/net/decnet/dn_nsp_out.c
+++ b/net/decnet/dn_nsp_out.c
@@ -85,7 +85,7 @@ static void dn_nsp_send(struct sk_buff *skb)
 	dst = sk_dst_check(sk, 0);
 	if (dst) {
 try_again:
-		skb->dst = dst;
+		skb_dst_set(skb, dst);
 		dst_output(skb);
 		return;
 	}
@@ -382,7 +382,7 @@ int dn_nsp_check_xmit_queue(struct sock *sk, struct sk_buff *skb, struct sk_buff
 {
 	struct dn_skb_cb *cb = DN_SKB_CB(skb);
 	struct dn_scp *scp = DN_SK(sk);
-	struct sk_buff *skb2, *list, *ack = NULL;
+	struct sk_buff *skb2, *n, *ack = NULL;
 	int wakeup = 0;
 	int try_retrans = 0;
 	unsigned long reftime = cb->stamp;
@@ -390,9 +390,7 @@ int dn_nsp_check_xmit_queue(struct sock *sk, struct sk_buff *skb, struct sk_buff
 	unsigned short xmit_count;
 	unsigned short segnum;
 
-	skb2 = q->next;
-	list = (struct sk_buff *)q;
-	while(list != skb2) {
+	skb_queue_walk_safe(q, skb2, n) {
 		struct dn_skb_cb *cb2 = DN_SKB_CB(skb2);
 
 		if (dn_before_or_equal(cb2->segnum, acknum))
@@ -400,8 +398,6 @@ int dn_nsp_check_xmit_queue(struct sock *sk, struct sk_buff *skb, struct sk_buff
 
 		/* printk(KERN_DEBUG "ack: %s %04x %04x\n", ack ? "ACK" : "SKIP", (int)cb2->segnum, (int)acknum); */
 
-		skb2 = skb2->next;
-
 		if (ack == NULL)
 			continue;
 
@@ -586,7 +582,7 @@ static __inline__ void dn_nsp_do_disc(struct sock *sk, unsigned char msgflg,
 	 * to be able to send disc packets out which have no socket
 	 * associations.
 	 */
-	skb->dst = dst_clone(dst);
+	skb_dst_set(skb, dst_clone(dst));
 	dst_output(skb);
 }
 
@@ -615,7 +611,7 @@ void dn_nsp_return_disc(struct sk_buff *skb, unsigned char msgflg,
 	int ddl = 0;
 	gfp_t gfp = GFP_ATOMIC;
 
-	dn_nsp_do_disc(NULL, msgflg, reason, gfp, skb->dst, ddl,
+	dn_nsp_do_disc(NULL, msgflg, reason, gfp, skb_dst(skb), ddl,
 			NULL, cb->src_port, cb->dst_port);
 }
 
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 0cc4394117df..1d6ca8a98dc6 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -678,7 +678,7 @@ out:
 
 static int dn_output(struct sk_buff *skb)
 {
-	struct dst_entry *dst = skb->dst;
+	struct dst_entry *dst = skb_dst(skb);
 	struct dn_route *rt = (struct dn_route *)dst;
 	struct net_device *dev = dst->dev;
 	struct dn_skb_cb *cb = DN_SKB_CB(skb);
@@ -717,7 +717,7 @@ error:
 static int dn_forward(struct sk_buff *skb)
 {
 	struct dn_skb_cb *cb = DN_SKB_CB(skb);
-	struct dst_entry *dst = skb->dst;
+	struct dst_entry *dst = skb_dst(skb);
 	struct dn_dev *dn_db = dst->dev->dn_ptr;
 	struct dn_route *rt;
 	struct neighbour *neigh = dst->neighbour;
@@ -730,7 +730,7 @@ static int dn_forward(struct sk_buff *skb)
 		goto drop;
 
 	/* Ensure that we have enough space for headers */
-	rt = (struct dn_route *)skb->dst;
+	rt = (struct dn_route *)skb_dst(skb);
 	header_len = dn_db->use_long ? 21 : 6;
 	if (skb_cow(skb, LL_RESERVED_SPACE(rt->u.dst.dev)+header_len))
 		goto drop;
@@ -1392,7 +1392,8 @@ make_route:
 		goto e_neighbour;
 
 	hash = dn_hash(rt->fl.fld_src, rt->fl.fld_dst);
-	dn_insert_route(rt, hash, (struct dn_route **)&skb->dst);
+	dn_insert_route(rt, hash, &rt);
+	skb_dst_set(skb, &rt->u.dst);
 
 done:
 	if (neigh)
@@ -1424,7 +1425,7 @@ static int dn_route_input(struct sk_buff *skb)
 	struct dn_skb_cb *cb = DN_SKB_CB(skb);
 	unsigned hash = dn_hash(cb->src, cb->dst);
 
-	if (skb->dst)
+	if (skb_dst(skb))
 		return 0;
 
 	rcu_read_lock();
@@ -1437,7 +1438,7 @@ static int dn_route_input(struct sk_buff *skb)
 		    (rt->fl.iif == cb->iif)) {
 			dst_use(&rt->u.dst, jiffies);
 			rcu_read_unlock();
-			skb->dst = (struct dst_entry *)rt;
+			skb_dst_set(skb, (struct dst_entry *)rt);
 			return 0;
 		}
 	}
@@ -1449,7 +1450,7 @@ static int dn_route_input(struct sk_buff *skb)
 static int dn_rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq,
 			   int event, int nowait, unsigned int flags)
 {
-	struct dn_route *rt = (struct dn_route *)skb->dst;
+	struct dn_route *rt = (struct dn_route *)skb_dst(skb);
 	struct rtmsg *r;
 	struct nlmsghdr *nlh;
 	unsigned char *b = skb_tail_pointer(skb);
@@ -1554,7 +1555,7 @@ static int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void
 		err = dn_route_input(skb);
 		local_bh_enable();
 		memset(cb, 0, sizeof(struct dn_skb_cb));
-		rt = (struct dn_route *)skb->dst;
+		rt = (struct dn_route *)skb_dst(skb);
 		if (!err && -rt->u.dst.error)
 			err = rt->u.dst.error;
 	} else {
@@ -1570,7 +1571,7 @@ static int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void
 	skb->dev = NULL;
 	if (err)
 		goto out_free;
-	skb->dst = &rt->u.dst;
+	skb_dst_set(skb, &rt->u.dst);
 	if (rtm->rtm_flags & RTM_F_NOTIFY)
 		rt->rt_flags |= RTCF_NOTIFY;
 
@@ -1622,15 +1623,15 @@ int dn_cache_dump(struct sk_buff *skb, struct netlink_callback *cb)
 			rt = rcu_dereference(rt->u.dst.dn_next), idx++) {
 			if (idx < s_idx)
 				continue;
-			skb->dst = dst_clone(&rt->u.dst);
+			skb_dst_set(skb, dst_clone(&rt->u.dst));
 			if (dn_rt_fill_info(skb, NETLINK_CB(cb->skb).pid,
 					cb->nlh->nlmsg_seq, RTM_NEWROUTE,
 					1, NLM_F_MULTI) <= 0) {
-				dst_release(xchg(&skb->dst, NULL));
+				skb_dst_drop(skb);
 				rcu_read_unlock_bh();
 				goto done;
 			}
-			dst_release(xchg(&skb->dst, NULL));
+			skb_dst_drop(skb);
 		}
 		rcu_read_unlock_bh();
 	}
diff --git a/net/decnet/dn_rules.c b/net/decnet/dn_rules.c
index 14fbca55e908..72495f25269f 100644
--- a/net/decnet/dn_rules.c
+++ b/net/decnet/dn_rules.c
@@ -115,7 +115,7 @@ static int dn_fib_rule_match(struct fib_rule *rule, struct flowi *fl, int flags)
 }
 
 static int dn_fib_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
-				 struct nlmsghdr *nlh, struct fib_rule_hdr *frh,
+				 struct fib_rule_hdr *frh,
 				 struct nlattr **tb)
 {
 	int err = -EINVAL;
@@ -192,7 +192,7 @@ unsigned dnet_addr_type(__le16 addr)
 }
 
 static int dn_fib_rule_fill(struct fib_rule *rule, struct sk_buff *skb,
-			    struct nlmsghdr *nlh, struct fib_rule_hdr *frh)
+			    struct fib_rule_hdr *frh)
 {
 	struct dn_fib_rule *r = (struct dn_fib_rule *)rule;
 
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index ed131181215d..2175e6d5cc8d 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -67,7 +67,7 @@ static int dsa_slave_open(struct net_device *dev)
 		return -ENETDOWN;
 
 	if (compare_ether_addr(dev->dev_addr, master->dev_addr)) {
-		err = dev_unicast_add(master, dev->dev_addr, ETH_ALEN);
+		err = dev_unicast_add(master, dev->dev_addr);
 		if (err < 0)
 			goto out;
 	}
@@ -90,7 +90,7 @@ clear_allmulti:
 		dev_set_allmulti(master, -1);
 del_unicast:
 	if (compare_ether_addr(dev->dev_addr, master->dev_addr))
-		dev_unicast_delete(master, dev->dev_addr, ETH_ALEN);
+		dev_unicast_delete(master, dev->dev_addr);
 out:
 	return err;
 }
@@ -108,7 +108,7 @@ static int dsa_slave_close(struct net_device *dev)
 		dev_set_promiscuity(master, -1);
 
 	if (compare_ether_addr(dev->dev_addr, master->dev_addr))
-		dev_unicast_delete(master, dev->dev_addr, ETH_ALEN);
+		dev_unicast_delete(master, dev->dev_addr);
 
 	return 0;
 }
@@ -147,13 +147,13 @@ static int dsa_slave_set_mac_address(struct net_device *dev, void *a)
 		goto out;
 
 	if (compare_ether_addr(addr->sa_data, master->dev_addr)) {
-		err = dev_unicast_add(master, addr->sa_data, ETH_ALEN);
+		err = dev_unicast_add(master, addr->sa_data);
 		if (err < 0)
 			return err;
 	}
 
 	if (compare_ether_addr(dev->dev_addr, master->dev_addr))
-		dev_unicast_delete(master, dev->dev_addr, ETH_ALEN);
+		dev_unicast_delete(master, dev->dev_addr);
 
 out:
 	memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
diff --git a/net/econet/af_econet.c b/net/econet/af_econet.c
index 6f479fa522c3..2e1f836d4240 100644
--- a/net/econet/af_econet.c
+++ b/net/econet/af_econet.c
@@ -540,8 +540,7 @@ static void econet_destroy_timer(unsigned long data)
 {
 	struct sock *sk=(struct sock *)data;
 
-	if (!atomic_read(&sk->sk_wmem_alloc) &&
-	    !atomic_read(&sk->sk_rmem_alloc)) {
+	if (!sk_has_allocations(sk)) {
 		sk_free(sk);
 		return;
 	}
@@ -579,8 +578,7 @@ static int econet_release(struct socket *sock)
 
 	skb_queue_purge(&sk->sk_receive_queue);
 
-	if (atomic_read(&sk->sk_rmem_alloc) ||
-	    atomic_read(&sk->sk_wmem_alloc)) {
+	if (sk_has_allocations(sk)) {
 		sk->sk_timer.data     = (unsigned long)sk;
 		sk->sk_timer.expires  = jiffies + HZ;
 		sk->sk_timer.function = econet_destroy_timer;
@@ -901,15 +899,10 @@ static void aun_tx_ack(unsigned long seq, int result)
 	struct ec_cb *eb;
 
 	spin_lock_irqsave(&aun_queue_lock, flags);
-	skb = skb_peek(&aun_queue);
-	while (skb && skb != (struct sk_buff *)&aun_queue)
-	{
-		struct sk_buff *newskb = skb->next;
+	skb_queue_walk(&aun_queue, skb) {
 		eb = (struct ec_cb *)&skb->cb;
 		if (eb->seq == seq)
 			goto foundit;
-
-		skb = newskb;
 	}
 	spin_unlock_irqrestore(&aun_queue_lock, flags);
 	printk(KERN_DEBUG "AUN: unknown sequence %ld\n", seq);
@@ -982,23 +975,18 @@ static void aun_data_available(struct sock *sk, int slen)
 
 static void ab_cleanup(unsigned long h)
 {
-	struct sk_buff *skb;
+	struct sk_buff *skb, *n;
 	unsigned long flags;
 
 	spin_lock_irqsave(&aun_queue_lock, flags);
-	skb = skb_peek(&aun_queue);
-	while (skb && skb != (struct sk_buff *)&aun_queue)
-	{
-		struct sk_buff *newskb = skb->next;
+	skb_queue_walk_safe(&aun_queue, skb, n) {
 		struct ec_cb *eb = (struct ec_cb *)&skb->cb;
-		if ((jiffies - eb->start) > eb->timeout)
-		{
+		if ((jiffies - eb->start) > eb->timeout) {
 			tx_result(skb->sk, eb->cookie,
 				  ECTYPE_TRANSMIT_NOT_PRESENT);
 			skb_unlink(skb, &aun_queue);
 			kfree_skb(skb);
 		}
-		skb = newskb;
 	}
 	spin_unlock_irqrestore(&aun_queue_lock, flags);
 
diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c
index 280352aba403..5a883affecd3 100644
--- a/net/ethernet/eth.c
+++ b/net/ethernet/eth.c
@@ -337,11 +337,6 @@ const struct header_ops eth_header_ops ____cacheline_aligned = {
 void ether_setup(struct net_device *dev)
 {
 	dev->header_ops		= &eth_header_ops;
-#ifdef CONFIG_COMPAT_NET_DEV_OPS
-	dev->change_mtu		= eth_change_mtu;
-	dev->set_mac_address 	= eth_mac_addr;
-	dev->validate_addr	= eth_validate_addr;
-#endif
 	dev->type		= ARPHRD_ETHER;
 	dev->hard_header_len 	= ETH_HLEN;
 	dev->mtu		= ETH_DATA_LEN;
diff --git a/net/ieee802154/Kconfig b/net/ieee802154/Kconfig
new file mode 100644
index 000000000000..1c1de97d264a
--- /dev/null
+++ b/net/ieee802154/Kconfig
@@ -0,0 +1,12 @@
+config IEEE802154
+	tristate "IEEE Std 802.15.4 Low-Rate Wireless Personal Area Networks support (EXPERIMENTAL)"
+	depends on EXPERIMENTAL
+	---help---
+	  IEEE Std 802.15.4 defines a low data rate, low power and low
+	  complexity short range wireless personal area networks. It was
+	  designed to organise networks of sensors, switches, etc automation
+	  devices. Maximum allowed data rate is 250 kb/s and typical personal
+	  operating space around 10m.
+
+	  Say Y here to compile LR-WPAN support into the kernel or say M to
+	  compile it as modules.
diff --git a/net/ieee802154/Makefile b/net/ieee802154/Makefile
new file mode 100644
index 000000000000..f99338a26100
--- /dev/null
+++ b/net/ieee802154/Makefile
@@ -0,0 +1,5 @@
+obj-$(CONFIG_IEEE802154) +=	nl802154.o af_802154.o
+nl802154-y		:= netlink.o nl_policy.o
+af_802154-y		:= af_ieee802154.o raw.o dgram.o
+
+ccflags-y += -Wall -DDEBUG
diff --git a/net/ieee802154/af802154.h b/net/ieee802154/af802154.h
new file mode 100644
index 000000000000..b1ec52537522
--- /dev/null
+++ b/net/ieee802154/af802154.h
@@ -0,0 +1,36 @@
+/*
+ * Internal interfaces for ieee 802.15.4 address family.
+ *
+ * Copyright 2007, 2008, 2009 Siemens AG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Written by:
+ * Sergey Lapin <slapin@ossfans.org>
+ * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
+ */
+
+#ifndef AF802154_H
+#define AF802154_H
+
+struct sk_buff;
+struct net_devce;
+extern struct proto ieee802154_raw_prot;
+extern struct proto ieee802154_dgram_prot;
+void ieee802154_raw_deliver(struct net_device *dev, struct sk_buff *skb);
+int ieee802154_dgram_deliver(struct net_device *dev, struct sk_buff *skb);
+struct net_device *ieee802154_get_dev(struct net *net,
+		struct ieee802154_addr *addr);
+
+#endif
diff --git a/net/ieee802154/af_ieee802154.c b/net/ieee802154/af_ieee802154.c
new file mode 100644
index 000000000000..3bb6bdb1dac1
--- /dev/null
+++ b/net/ieee802154/af_ieee802154.c
@@ -0,0 +1,366 @@
+/*
+ * IEEE802154.4 socket interface
+ *
+ * Copyright 2007, 2008 Siemens AG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Written by:
+ * Sergey Lapin <slapin@ossfans.org>
+ * Maxim Gorbachyov <maxim.gorbachev@siemens.com>
+ */
+
+#include <linux/net.h>
+#include <linux/capability.h>
+#include <linux/module.h>
+#include <linux/if_arp.h>
+#include <linux/if.h>
+#include <linux/termios.h>	/* For TIOCOUTQ/INQ */
+#include <linux/list.h>
+#include <net/datalink.h>
+#include <net/psnap.h>
+#include <net/sock.h>
+#include <net/tcp_states.h>
+#include <net/route.h>
+
+#include <net/ieee802154/af_ieee802154.h>
+#include <net/ieee802154/netdevice.h>
+
+#include "af802154.h"
+
+/*
+ * Utility function for families
+ */
+struct net_device *ieee802154_get_dev(struct net *net,
+		struct ieee802154_addr *addr)
+{
+	struct net_device *dev = NULL;
+	struct net_device *tmp;
+	u16 pan_id, short_addr;
+
+	switch (addr->addr_type) {
+	case IEEE802154_ADDR_LONG:
+		rtnl_lock();
+		dev = dev_getbyhwaddr(net, ARPHRD_IEEE802154, addr->hwaddr);
+		if (dev)
+			dev_hold(dev);
+		rtnl_unlock();
+		break;
+	case IEEE802154_ADDR_SHORT:
+		if (addr->pan_id == 0xffff ||
+		    addr->short_addr == IEEE802154_ADDR_UNDEF ||
+		    addr->short_addr == 0xffff)
+			break;
+
+		rtnl_lock();
+
+		for_each_netdev(net, tmp) {
+			if (tmp->type != ARPHRD_IEEE802154)
+				continue;
+
+			pan_id = ieee802154_mlme_ops(tmp)->get_pan_id(tmp);
+			short_addr =
+				ieee802154_mlme_ops(tmp)->get_short_addr(tmp);
+
+			if (pan_id == addr->pan_id &&
+			    short_addr == addr->short_addr) {
+				dev = tmp;
+				dev_hold(dev);
+				break;
+			}
+		}
+
+		rtnl_unlock();
+		break;
+	default:
+		pr_warning("Unsupported ieee802154 address type: %d\n",
+				addr->addr_type);
+		break;
+	}
+
+	return dev;
+}
+
+static int ieee802154_sock_release(struct socket *sock)
+{
+	struct sock *sk = sock->sk;
+
+	if (sk) {
+		sock->sk = NULL;
+		sk->sk_prot->close(sk, 0);
+	}
+	return 0;
+}
+static int ieee802154_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
+		struct msghdr *msg, size_t len)
+{
+	struct sock *sk = sock->sk;
+
+	return sk->sk_prot->sendmsg(iocb, sk, msg, len);
+}
+
+static int ieee802154_sock_bind(struct socket *sock, struct sockaddr *uaddr,
+		int addr_len)
+{
+	struct sock *sk = sock->sk;
+
+	if (sk->sk_prot->bind)
+		return sk->sk_prot->bind(sk, uaddr, addr_len);
+
+	return sock_no_bind(sock, uaddr, addr_len);
+}
+
+static int ieee802154_sock_connect(struct socket *sock, struct sockaddr *uaddr,
+			int addr_len, int flags)
+{
+	struct sock *sk = sock->sk;
+
+	if (uaddr->sa_family == AF_UNSPEC)
+		return sk->sk_prot->disconnect(sk, flags);
+
+	return sk->sk_prot->connect(sk, uaddr, addr_len);
+}
+
+static int ieee802154_dev_ioctl(struct sock *sk, struct ifreq __user *arg,
+		unsigned int cmd)
+{
+	struct ifreq ifr;
+	int ret = -EINVAL;
+	struct net_device *dev;
+
+	if (copy_from_user(&ifr, arg, sizeof(struct ifreq)))
+		return -EFAULT;
+
+	ifr.ifr_name[IFNAMSIZ-1] = 0;
+
+	dev_load(sock_net(sk), ifr.ifr_name);
+	dev = dev_get_by_name(sock_net(sk), ifr.ifr_name);
+	if (dev->type == ARPHRD_IEEE802154 ||
+	    dev->type == ARPHRD_IEEE802154_PHY)
+		ret = dev->netdev_ops->ndo_do_ioctl(dev, &ifr, cmd);
+
+	if (!ret && copy_to_user(arg, &ifr, sizeof(struct ifreq)))
+		ret = -EFAULT;
+	dev_put(dev);
+
+	return ret;
+}
+
+static int ieee802154_sock_ioctl(struct socket *sock, unsigned int cmd,
+		unsigned long arg)
+{
+	struct sock *sk = sock->sk;
+
+	switch (cmd) {
+	case SIOCGSTAMP:
+		return sock_get_timestamp(sk, (struct timeval __user *)arg);
+	case SIOCGSTAMPNS:
+		return sock_get_timestampns(sk, (struct timespec __user *)arg);
+	case SIOCGIFADDR:
+	case SIOCSIFADDR:
+		return ieee802154_dev_ioctl(sk, (struct ifreq __user *)arg,
+				cmd);
+	default:
+		if (!sk->sk_prot->ioctl)
+			return -ENOIOCTLCMD;
+		return sk->sk_prot->ioctl(sk, cmd, arg);
+	}
+}
+
+static const struct proto_ops ieee802154_raw_ops = {
+	.family		   = PF_IEEE802154,
+	.owner		   = THIS_MODULE,
+	.release	   = ieee802154_sock_release,
+	.bind		   = ieee802154_sock_bind,
+	.connect	   = ieee802154_sock_connect,
+	.socketpair	   = sock_no_socketpair,
+	.accept		   = sock_no_accept,
+	.getname	   = sock_no_getname,
+	.poll		   = datagram_poll,
+	.ioctl		   = ieee802154_sock_ioctl,
+	.listen		   = sock_no_listen,
+	.shutdown	   = sock_no_shutdown,
+	.setsockopt	   = sock_common_setsockopt,
+	.getsockopt	   = sock_common_getsockopt,
+	.sendmsg	   = ieee802154_sock_sendmsg,
+	.recvmsg	   = sock_common_recvmsg,
+	.mmap		   = sock_no_mmap,
+	.sendpage	   = sock_no_sendpage,
+#ifdef CONFIG_COMPAT
+	.compat_setsockopt = compat_sock_common_setsockopt,
+	.compat_getsockopt = compat_sock_common_getsockopt,
+#endif
+};
+
+static const struct proto_ops ieee802154_dgram_ops = {
+	.family		   = PF_IEEE802154,
+	.owner		   = THIS_MODULE,
+	.release	   = ieee802154_sock_release,
+	.bind		   = ieee802154_sock_bind,
+	.connect	   = ieee802154_sock_connect,
+	.socketpair	   = sock_no_socketpair,
+	.accept		   = sock_no_accept,
+	.getname	   = sock_no_getname,
+	.poll		   = datagram_poll,
+	.ioctl		   = ieee802154_sock_ioctl,
+	.listen		   = sock_no_listen,
+	.shutdown	   = sock_no_shutdown,
+	.setsockopt	   = sock_common_setsockopt,
+	.getsockopt	   = sock_common_getsockopt,
+	.sendmsg	   = ieee802154_sock_sendmsg,
+	.recvmsg	   = sock_common_recvmsg,
+	.mmap		   = sock_no_mmap,
+	.sendpage	   = sock_no_sendpage,
+#ifdef CONFIG_COMPAT
+	.compat_setsockopt = compat_sock_common_setsockopt,
+	.compat_getsockopt = compat_sock_common_getsockopt,
+#endif
+};
+
+
+/*
+ * Create a socket. Initialise the socket, blank the addresses
+ * set the state.
+ */
+static int ieee802154_create(struct net *net, struct socket *sock,
+		int protocol)
+{
+	struct sock *sk;
+	int rc;
+	struct proto *proto;
+	const struct proto_ops *ops;
+
+	if (net != &init_net)
+		return -EAFNOSUPPORT;
+
+	switch (sock->type) {
+	case SOCK_RAW:
+		proto = &ieee802154_raw_prot;
+		ops = &ieee802154_raw_ops;
+		break;
+	case SOCK_DGRAM:
+		proto = &ieee802154_dgram_prot;
+		ops = &ieee802154_dgram_ops;
+		break;
+	default:
+		rc = -ESOCKTNOSUPPORT;
+		goto out;
+	}
+
+	rc = -ENOMEM;
+	sk = sk_alloc(net, PF_IEEE802154, GFP_KERNEL, proto);
+	if (!sk)
+		goto out;
+	rc = 0;
+
+	sock->ops = ops;
+
+	sock_init_data(sock, sk);
+	/* FIXME: sk->sk_destruct */
+	sk->sk_family = PF_IEEE802154;
+
+	/* Checksums on by default */
+	sock_set_flag(sk, SOCK_ZAPPED);
+
+	if (sk->sk_prot->hash)
+		sk->sk_prot->hash(sk);
+
+	if (sk->sk_prot->init) {
+		rc = sk->sk_prot->init(sk);
+		if (rc)
+			sk_common_release(sk);
+	}
+out:
+	return rc;
+}
+
+static struct net_proto_family ieee802154_family_ops = {
+	.family		= PF_IEEE802154,
+	.create		= ieee802154_create,
+	.owner		= THIS_MODULE,
+};
+
+static int ieee802154_rcv(struct sk_buff *skb, struct net_device *dev,
+	struct packet_type *pt, struct net_device *orig_dev)
+{
+	if (!netif_running(dev))
+		return -ENODEV;
+	pr_debug("got frame, type %d, dev %p\n", dev->type, dev);
+#ifdef DEBUG
+	print_hex_dump_bytes("ieee802154_rcv ", DUMP_PREFIX_NONE, skb->data, skb->len);
+#endif
+
+	if (!net_eq(dev_net(dev), &init_net))
+		goto drop;
+
+	ieee802154_raw_deliver(dev, skb);
+
+	if (dev->type != ARPHRD_IEEE802154)
+		goto drop;
+
+	if (skb->pkt_type != PACKET_OTHERHOST)
+		return ieee802154_dgram_deliver(dev, skb);
+
+drop:
+	kfree_skb(skb);
+	return NET_RX_DROP;
+}
+
+
+static struct packet_type ieee802154_packet_type = {
+	.type = __constant_htons(ETH_P_IEEE802154),
+	.func = ieee802154_rcv,
+};
+
+static int __init af_ieee802154_init(void)
+{
+	int rc = -EINVAL;
+
+	rc = proto_register(&ieee802154_raw_prot, 1);
+	if (rc)
+		goto out;
+
+	rc = proto_register(&ieee802154_dgram_prot, 1);
+	if (rc)
+		goto err_dgram;
+
+	/* Tell SOCKET that we are alive */
+	rc = sock_register(&ieee802154_family_ops);
+	if (rc)
+		goto err_sock;
+	dev_add_pack(&ieee802154_packet_type);
+
+	rc = 0;
+	goto out;
+
+err_sock:
+	proto_unregister(&ieee802154_dgram_prot);
+err_dgram:
+	proto_unregister(&ieee802154_raw_prot);
+out:
+	return rc;
+}
+static void __exit af_ieee802154_remove(void)
+{
+	dev_remove_pack(&ieee802154_packet_type);
+	sock_unregister(PF_IEEE802154);
+	proto_unregister(&ieee802154_dgram_prot);
+	proto_unregister(&ieee802154_raw_prot);
+}
+
+module_init(af_ieee802154_init);
+module_exit(af_ieee802154_remove);
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_NETPROTO(PF_IEEE802154);
diff --git a/net/ieee802154/dgram.c b/net/ieee802154/dgram.c
new file mode 100644
index 000000000000..14d39840dd62
--- /dev/null
+++ b/net/ieee802154/dgram.c
@@ -0,0 +1,395 @@
+/*
+ * ZigBee socket interface
+ *
+ * Copyright 2007, 2008 Siemens AG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Written by:
+ * Sergey Lapin <slapin@ossfans.org>
+ * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
+ */
+
+#include <linux/net.h>
+#include <linux/module.h>
+#include <linux/if_arp.h>
+#include <linux/list.h>
+#include <net/sock.h>
+#include <net/ieee802154/af_ieee802154.h>
+#include <net/ieee802154/mac_def.h>
+#include <net/ieee802154/netdevice.h>
+
+#include <asm/ioctls.h>
+
+#include "af802154.h"
+
+static HLIST_HEAD(dgram_head);
+static DEFINE_RWLOCK(dgram_lock);
+
+struct dgram_sock {
+	struct sock sk;
+
+	int bound;
+	struct ieee802154_addr src_addr;
+	struct ieee802154_addr dst_addr;
+};
+
+static inline struct dgram_sock *dgram_sk(const struct sock *sk)
+{
+	return container_of(sk, struct dgram_sock, sk);
+}
+
+
+static void dgram_hash(struct sock *sk)
+{
+	write_lock_bh(&dgram_lock);
+	sk_add_node(sk, &dgram_head);
+	sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
+	write_unlock_bh(&dgram_lock);
+}
+
+static void dgram_unhash(struct sock *sk)
+{
+	write_lock_bh(&dgram_lock);
+	if (sk_del_node_init(sk))
+		sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
+	write_unlock_bh(&dgram_lock);
+}
+
+static int dgram_init(struct sock *sk)
+{
+	struct dgram_sock *ro = dgram_sk(sk);
+
+	ro->dst_addr.addr_type = IEEE802154_ADDR_LONG;
+	ro->dst_addr.pan_id = 0xffff;
+	memset(&ro->dst_addr.hwaddr, 0xff, sizeof(ro->dst_addr.hwaddr));
+	return 0;
+}
+
+static void dgram_close(struct sock *sk, long timeout)
+{
+	sk_common_release(sk);
+}
+
+static int dgram_bind(struct sock *sk, struct sockaddr *uaddr, int len)
+{
+	struct sockaddr_ieee802154 *addr = (struct sockaddr_ieee802154 *)uaddr;
+	struct dgram_sock *ro = dgram_sk(sk);
+	int err = 0;
+	struct net_device *dev;
+
+	ro->bound = 0;
+
+	if (len < sizeof(*addr))
+		return -EINVAL;
+
+	if (addr->family != AF_IEEE802154)
+		return -EINVAL;
+
+	lock_sock(sk);
+
+	dev = ieee802154_get_dev(sock_net(sk), &addr->addr);
+	if (!dev) {
+		err = -ENODEV;
+		goto out;
+	}
+
+	if (dev->type != ARPHRD_IEEE802154) {
+		err = -ENODEV;
+		goto out_put;
+	}
+
+	memcpy(&ro->src_addr, &addr->addr, sizeof(struct ieee802154_addr));
+
+	ro->bound = 1;
+out_put:
+	dev_put(dev);
+out:
+	release_sock(sk);
+
+	return err;
+}
+
+static int dgram_ioctl(struct sock *sk, int cmd, unsigned long arg)
+{
+	switch (cmd) {
+	case SIOCOUTQ:
+	{
+		int amount = sk_wmem_alloc_get(sk);
+
+		return put_user(amount, (int __user *)arg);
+	}
+
+	case SIOCINQ:
+	{
+		struct sk_buff *skb;
+		unsigned long amount;
+
+		amount = 0;
+		spin_lock_bh(&sk->sk_receive_queue.lock);
+		skb = skb_peek(&sk->sk_receive_queue);
+		if (skb != NULL) {
+			/*
+			 * We will only return the amount
+			 * of this packet since that is all
+			 * that will be read.
+			 */
+			/* FIXME: parse the header for more correct value */
+			amount = skb->len - (3+8+8);
+		}
+		spin_unlock_bh(&sk->sk_receive_queue.lock);
+		return put_user(amount, (int __user *)arg);
+	}
+
+	}
+	return -ENOIOCTLCMD;
+}
+
+/* FIXME: autobind */
+static int dgram_connect(struct sock *sk, struct sockaddr *uaddr,
+			int len)
+{
+	struct sockaddr_ieee802154 *addr = (struct sockaddr_ieee802154 *)uaddr;
+	struct dgram_sock *ro = dgram_sk(sk);
+	int err = 0;
+
+	if (len < sizeof(*addr))
+		return -EINVAL;
+
+	if (addr->family != AF_IEEE802154)
+		return -EINVAL;
+
+	lock_sock(sk);
+
+	if (!ro->bound) {
+		err = -ENETUNREACH;
+		goto out;
+	}
+
+	memcpy(&ro->dst_addr, &addr->addr, sizeof(struct ieee802154_addr));
+
+out:
+	release_sock(sk);
+	return err;
+}
+
+static int dgram_disconnect(struct sock *sk, int flags)
+{
+	struct dgram_sock *ro = dgram_sk(sk);
+
+	lock_sock(sk);
+
+	ro->dst_addr.addr_type = IEEE802154_ADDR_LONG;
+	memset(&ro->dst_addr.hwaddr, 0xff, sizeof(ro->dst_addr.hwaddr));
+
+	release_sock(sk);
+
+	return 0;
+}
+
+static int dgram_sendmsg(struct kiocb *iocb, struct sock *sk,
+		struct msghdr *msg, size_t size)
+{
+	struct net_device *dev;
+	unsigned mtu;
+	struct sk_buff *skb;
+	struct dgram_sock *ro = dgram_sk(sk);
+	int err;
+
+	if (msg->msg_flags & MSG_OOB) {
+		pr_debug("msg->msg_flags = 0x%x\n", msg->msg_flags);
+		return -EOPNOTSUPP;
+	}
+
+	if (!ro->bound)
+		dev = dev_getfirstbyhwtype(sock_net(sk), ARPHRD_IEEE802154);
+	else
+		dev = ieee802154_get_dev(sock_net(sk), &ro->src_addr);
+
+	if (!dev) {
+		pr_debug("no dev\n");
+		err = -ENXIO;
+		goto out;
+	}
+	mtu = dev->mtu;
+	pr_debug("name = %s, mtu = %u\n", dev->name, mtu);
+
+	skb = sock_alloc_send_skb(sk, LL_ALLOCATED_SPACE(dev) + size,
+			msg->msg_flags & MSG_DONTWAIT,
+			&err);
+	if (!skb)
+		goto out_dev;
+
+	skb_reserve(skb, LL_RESERVED_SPACE(dev));
+
+	skb_reset_network_header(skb);
+
+	mac_cb(skb)->flags = IEEE802154_FC_TYPE_DATA | MAC_CB_FLAG_ACKREQ;
+	mac_cb(skb)->seq = ieee802154_mlme_ops(dev)->get_dsn(dev);
+	err = dev_hard_header(skb, dev, ETH_P_IEEE802154, &ro->dst_addr,
+			ro->bound ? &ro->src_addr : NULL, size);
+	if (err < 0)
+		goto out_skb;
+
+	skb_reset_mac_header(skb);
+
+	err = memcpy_fromiovec(skb_put(skb, size), msg->msg_iov, size);
+	if (err < 0)
+		goto out_skb;
+
+	if (size > mtu) {
+		pr_debug("size = %Zu, mtu = %u\n", size, mtu);
+		err = -EINVAL;
+		goto out_skb;
+	}
+
+	skb->dev = dev;
+	skb->sk  = sk;
+	skb->protocol = htons(ETH_P_IEEE802154);
+
+	dev_put(dev);
+
+	err = dev_queue_xmit(skb);
+	if (err > 0)
+		err = net_xmit_errno(err);
+
+	return err ?: size;
+
+out_skb:
+	kfree_skb(skb);
+out_dev:
+	dev_put(dev);
+out:
+	return err;
+}
+
+static int dgram_recvmsg(struct kiocb *iocb, struct sock *sk,
+		struct msghdr *msg, size_t len, int noblock, int flags,
+		int *addr_len)
+{
+	size_t copied = 0;
+	int err = -EOPNOTSUPP;
+	struct sk_buff *skb;
+
+	skb = skb_recv_datagram(sk, flags, noblock, &err);
+	if (!skb)
+		goto out;
+
+	copied = skb->len;
+	if (len < copied) {
+		msg->msg_flags |= MSG_TRUNC;
+		copied = len;
+	}
+
+	/* FIXME: skip headers if necessary ?! */
+	err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
+	if (err)
+		goto done;
+
+	sock_recv_timestamp(msg, sk, skb);
+
+	if (flags & MSG_TRUNC)
+		copied = skb->len;
+done:
+	skb_free_datagram(sk, skb);
+out:
+	if (err)
+		return err;
+	return copied;
+}
+
+static int dgram_rcv_skb(struct sock *sk, struct sk_buff *skb)
+{
+	if (sock_queue_rcv_skb(sk, skb) < 0) {
+		atomic_inc(&sk->sk_drops);
+		kfree_skb(skb);
+		return NET_RX_DROP;
+	}
+
+	return NET_RX_SUCCESS;
+}
+
+static inline int ieee802154_match_sock(u8 *hw_addr, u16 pan_id,
+		u16 short_addr, struct dgram_sock *ro)
+{
+	if (!ro->bound)
+		return 1;
+
+	if (ro->src_addr.addr_type == IEEE802154_ADDR_LONG &&
+	    !memcmp(ro->src_addr.hwaddr, hw_addr, IEEE802154_ADDR_LEN))
+		return 1;
+
+	if (ro->src_addr.addr_type == IEEE802154_ADDR_SHORT &&
+		     pan_id == ro->src_addr.pan_id &&
+		     short_addr == ro->src_addr.short_addr)
+		return 1;
+
+	return 0;
+}
+
+int ieee802154_dgram_deliver(struct net_device *dev, struct sk_buff *skb)
+{
+	struct sock *sk, *prev = NULL;
+	struct hlist_node *node;
+	int ret = NET_RX_SUCCESS;
+	u16 pan_id, short_addr;
+
+	/* Data frame processing */
+	BUG_ON(dev->type != ARPHRD_IEEE802154);
+
+	pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
+	short_addr = ieee802154_mlme_ops(dev)->get_short_addr(dev);
+
+	read_lock(&dgram_lock);
+	sk_for_each(sk, node, &dgram_head) {
+		if (ieee802154_match_sock(dev->dev_addr, pan_id, short_addr,
+					dgram_sk(sk))) {
+			if (prev) {
+				struct sk_buff *clone;
+				clone = skb_clone(skb, GFP_ATOMIC);
+				if (clone)
+					dgram_rcv_skb(prev, clone);
+			}
+
+			prev = sk;
+		}
+	}
+
+	if (prev)
+		dgram_rcv_skb(prev, skb);
+	else {
+		kfree_skb(skb);
+		ret = NET_RX_DROP;
+	}
+	read_unlock(&dgram_lock);
+
+	return ret;
+}
+
+struct proto ieee802154_dgram_prot = {
+	.name		= "IEEE-802.15.4-MAC",
+	.owner		= THIS_MODULE,
+	.obj_size	= sizeof(struct dgram_sock),
+	.init		= dgram_init,
+	.close		= dgram_close,
+	.bind		= dgram_bind,
+	.sendmsg	= dgram_sendmsg,
+	.recvmsg	= dgram_recvmsg,
+	.hash		= dgram_hash,
+	.unhash		= dgram_unhash,
+	.connect	= dgram_connect,
+	.disconnect	= dgram_disconnect,
+	.ioctl		= dgram_ioctl,
+};
+
diff --git a/net/ieee802154/netlink.c b/net/ieee802154/netlink.c
new file mode 100644
index 000000000000..105ad10876af
--- /dev/null
+++ b/net/ieee802154/netlink.c
@@ -0,0 +1,523 @@
+/*
+ * Netlink inteface for IEEE 802.15.4 stack
+ *
+ * Copyright 2007, 2008 Siemens AG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Written by:
+ * Sergey Lapin <slapin@ossfans.org>
+ * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/if_arp.h>
+#include <linux/netdevice.h>
+#include <net/netlink.h>
+#include <net/genetlink.h>
+#include <linux/nl802154.h>
+#include <net/ieee802154/af_ieee802154.h>
+#include <net/ieee802154/nl802154.h>
+#include <net/ieee802154/netdevice.h>
+
+static unsigned int ieee802154_seq_num;
+
+static struct genl_family ieee802154_coordinator_family = {
+	.id		= GENL_ID_GENERATE,
+	.hdrsize	= 0,
+	.name		= IEEE802154_NL_NAME,
+	.version	= 1,
+	.maxattr	= IEEE802154_ATTR_MAX,
+};
+
+static struct genl_multicast_group ieee802154_coord_mcgrp = {
+	.name		= IEEE802154_MCAST_COORD_NAME,
+};
+
+static struct genl_multicast_group ieee802154_beacon_mcgrp = {
+	.name		= IEEE802154_MCAST_BEACON_NAME,
+};
+
+/* Requests to userspace */
+static struct sk_buff *ieee802154_nl_create(int flags, u8 req)
+{
+	void *hdr;
+	struct sk_buff *msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
+
+	if (!msg)
+		return NULL;
+
+	hdr = genlmsg_put(msg, 0, ieee802154_seq_num++,
+			&ieee802154_coordinator_family, flags, req);
+	if (!hdr) {
+		nlmsg_free(msg);
+		return NULL;
+	}
+
+	return msg;
+}
+
+static int ieee802154_nl_finish(struct sk_buff *msg)
+{
+	/* XXX: nlh is right at the start of msg */
+	void *hdr = genlmsg_data(NLMSG_DATA(msg->data));
+
+	if (!genlmsg_end(msg, hdr))
+		goto out;
+
+	return genlmsg_multicast(msg, 0, ieee802154_coord_mcgrp.id,
+			GFP_ATOMIC);
+out:
+	nlmsg_free(msg);
+	return -ENOBUFS;
+}
+
+int ieee802154_nl_assoc_indic(struct net_device *dev,
+		struct ieee802154_addr *addr, u8 cap)
+{
+	struct sk_buff *msg;
+
+	pr_debug("%s\n", __func__);
+
+	if (addr->addr_type != IEEE802154_ADDR_LONG) {
+		pr_err("%s: received non-long source address!\n", __func__);
+		return -EINVAL;
+	}
+
+	msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_INDIC);
+	if (!msg)
+		return -ENOBUFS;
+
+	NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
+	NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
+	NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
+			dev->dev_addr);
+
+	NLA_PUT(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN,
+			addr->hwaddr);
+
+	NLA_PUT_U8(msg, IEEE802154_ATTR_CAPABILITY, cap);
+
+	return ieee802154_nl_finish(msg);
+
+nla_put_failure:
+	nlmsg_free(msg);
+	return -ENOBUFS;
+}
+EXPORT_SYMBOL(ieee802154_nl_assoc_indic);
+
+int ieee802154_nl_assoc_confirm(struct net_device *dev, u16 short_addr,
+		u8 status)
+{
+	struct sk_buff *msg;
+
+	pr_debug("%s\n", __func__);
+
+	msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_CONF);
+	if (!msg)
+		return -ENOBUFS;
+
+	NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
+	NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
+	NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
+			dev->dev_addr);
+
+	NLA_PUT_U16(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr);
+	NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status);
+
+	return ieee802154_nl_finish(msg);
+
+nla_put_failure:
+	nlmsg_free(msg);
+	return -ENOBUFS;
+}
+EXPORT_SYMBOL(ieee802154_nl_assoc_confirm);
+
+int ieee802154_nl_disassoc_indic(struct net_device *dev,
+		struct ieee802154_addr *addr, u8 reason)
+{
+	struct sk_buff *msg;
+
+	pr_debug("%s\n", __func__);
+
+	msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_INDIC);
+	if (!msg)
+		return -ENOBUFS;
+
+	NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
+	NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
+	NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
+			dev->dev_addr);
+
+	if (addr->addr_type == IEEE802154_ADDR_LONG)
+		NLA_PUT(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN,
+				addr->hwaddr);
+	else
+		NLA_PUT_U16(msg, IEEE802154_ATTR_SRC_SHORT_ADDR,
+				addr->short_addr);
+
+	NLA_PUT_U8(msg, IEEE802154_ATTR_REASON, reason);
+
+	return ieee802154_nl_finish(msg);
+
+nla_put_failure:
+	nlmsg_free(msg);
+	return -ENOBUFS;
+}
+EXPORT_SYMBOL(ieee802154_nl_disassoc_indic);
+
+int ieee802154_nl_disassoc_confirm(struct net_device *dev, u8 status)
+{
+	struct sk_buff *msg;
+
+	pr_debug("%s\n", __func__);
+
+	msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_CONF);
+	if (!msg)
+		return -ENOBUFS;
+
+	NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
+	NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
+	NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
+			dev->dev_addr);
+
+	NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status);
+
+	return ieee802154_nl_finish(msg);
+
+nla_put_failure:
+	nlmsg_free(msg);
+	return -ENOBUFS;
+}
+EXPORT_SYMBOL(ieee802154_nl_disassoc_confirm);
+
+int ieee802154_nl_beacon_indic(struct net_device *dev,
+		u16 panid, u16 coord_addr)
+{
+	struct sk_buff *msg;
+
+	pr_debug("%s\n", __func__);
+
+	msg = ieee802154_nl_create(0, IEEE802154_BEACON_NOTIFY_INDIC);
+	if (!msg)
+		return -ENOBUFS;
+
+	NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
+	NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
+	NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
+			dev->dev_addr);
+	NLA_PUT_U16(msg, IEEE802154_ATTR_COORD_SHORT_ADDR, coord_addr);
+	NLA_PUT_U16(msg, IEEE802154_ATTR_COORD_PAN_ID, panid);
+
+	return ieee802154_nl_finish(msg);
+
+nla_put_failure:
+	nlmsg_free(msg);
+	return -ENOBUFS;
+}
+EXPORT_SYMBOL(ieee802154_nl_beacon_indic);
+
+int ieee802154_nl_scan_confirm(struct net_device *dev,
+		u8 status, u8 scan_type, u32 unscanned,
+		u8 *edl/* , struct list_head *pan_desc_list */)
+{
+	struct sk_buff *msg;
+
+	pr_debug("%s\n", __func__);
+
+	msg = ieee802154_nl_create(0, IEEE802154_SCAN_CONF);
+	if (!msg)
+		return -ENOBUFS;
+
+	NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
+	NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
+	NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
+			dev->dev_addr);
+
+	NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status);
+	NLA_PUT_U8(msg, IEEE802154_ATTR_SCAN_TYPE, scan_type);
+	NLA_PUT_U32(msg, IEEE802154_ATTR_CHANNELS, unscanned);
+
+	if (edl)
+		NLA_PUT(msg, IEEE802154_ATTR_ED_LIST, 27, edl);
+
+	return ieee802154_nl_finish(msg);
+
+nla_put_failure:
+	nlmsg_free(msg);
+	return -ENOBUFS;
+}
+EXPORT_SYMBOL(ieee802154_nl_scan_confirm);
+
+/* Requests from userspace */
+static struct net_device *ieee802154_nl_get_dev(struct genl_info *info)
+{
+	struct net_device *dev;
+
+	if (info->attrs[IEEE802154_ATTR_DEV_NAME]) {
+		char name[IFNAMSIZ + 1];
+		nla_strlcpy(name, info->attrs[IEEE802154_ATTR_DEV_NAME],
+				sizeof(name));
+		dev = dev_get_by_name(&init_net, name);
+	} else if (info->attrs[IEEE802154_ATTR_DEV_INDEX])
+		dev = dev_get_by_index(&init_net,
+				nla_get_u32(info->attrs[IEEE802154_ATTR_DEV_INDEX]));
+	else
+		return NULL;
+
+	if (dev->type != ARPHRD_IEEE802154) {
+		dev_put(dev);
+		return NULL;
+	}
+
+	return dev;
+}
+
+static int ieee802154_associate_req(struct sk_buff *skb,
+		struct genl_info *info)
+{
+	struct net_device *dev;
+	struct ieee802154_addr addr;
+	int ret = -EINVAL;
+
+	if (!info->attrs[IEEE802154_ATTR_CHANNEL] ||
+	    !info->attrs[IEEE802154_ATTR_COORD_PAN_ID] ||
+	    (!info->attrs[IEEE802154_ATTR_COORD_HW_ADDR] &&
+		!info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]) ||
+	    !info->attrs[IEEE802154_ATTR_CAPABILITY])
+		return -EINVAL;
+
+	dev = ieee802154_nl_get_dev(info);
+	if (!dev)
+		return -ENODEV;
+
+	if (info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]) {
+		addr.addr_type = IEEE802154_ADDR_LONG;
+		nla_memcpy(addr.hwaddr,
+				info->attrs[IEEE802154_ATTR_COORD_HW_ADDR],
+				IEEE802154_ADDR_LEN);
+	} else {
+		addr.addr_type = IEEE802154_ADDR_SHORT;
+		addr.short_addr = nla_get_u16(
+				info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]);
+	}
+	addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]);
+
+	ret = ieee802154_mlme_ops(dev)->assoc_req(dev, &addr,
+			nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]),
+			nla_get_u8(info->attrs[IEEE802154_ATTR_CAPABILITY]));
+
+	dev_put(dev);
+	return ret;
+}
+
+static int ieee802154_associate_resp(struct sk_buff *skb,
+		struct genl_info *info)
+{
+	struct net_device *dev;
+	struct ieee802154_addr addr;
+	int ret = -EINVAL;
+
+	if (!info->attrs[IEEE802154_ATTR_STATUS] ||
+	    !info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] ||
+	    !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR])
+		return -EINVAL;
+
+	dev = ieee802154_nl_get_dev(info);
+	if (!dev)
+		return -ENODEV;
+
+	addr.addr_type = IEEE802154_ADDR_LONG;
+	nla_memcpy(addr.hwaddr, info->attrs[IEEE802154_ATTR_DEST_HW_ADDR],
+			IEEE802154_ADDR_LEN);
+	addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
+
+
+	ret = ieee802154_mlme_ops(dev)->assoc_resp(dev, &addr,
+		nla_get_u16(info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]),
+		nla_get_u8(info->attrs[IEEE802154_ATTR_STATUS]));
+
+	dev_put(dev);
+	return ret;
+}
+
+static int ieee802154_disassociate_req(struct sk_buff *skb,
+		struct genl_info *info)
+{
+	struct net_device *dev;
+	struct ieee802154_addr addr;
+	int ret = -EINVAL;
+
+	if ((!info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] &&
+		!info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) ||
+	    !info->attrs[IEEE802154_ATTR_REASON])
+		return -EINVAL;
+
+	dev = ieee802154_nl_get_dev(info);
+	if (!dev)
+		return -ENODEV;
+
+	if (info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]) {
+		addr.addr_type = IEEE802154_ADDR_LONG;
+		nla_memcpy(addr.hwaddr,
+				info->attrs[IEEE802154_ATTR_DEST_HW_ADDR],
+				IEEE802154_ADDR_LEN);
+	} else {
+		addr.addr_type = IEEE802154_ADDR_SHORT;
+		addr.short_addr = nla_get_u16(
+				info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]);
+	}
+	addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
+
+	ret = ieee802154_mlme_ops(dev)->disassoc_req(dev, &addr,
+			nla_get_u8(info->attrs[IEEE802154_ATTR_REASON]));
+
+	dev_put(dev);
+	return ret;
+}
+
+/*
+ * PANid, channel, beacon_order = 15, superframe_order = 15,
+ * PAN_coordinator, battery_life_extension = 0,
+ * coord_realignment = 0, security_enable = 0
+*/
+static int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info)
+{
+	struct net_device *dev;
+	struct ieee802154_addr addr;
+
+	u8 channel, bcn_ord, sf_ord;
+	int pan_coord, blx, coord_realign;
+	int ret;
+
+	if (!info->attrs[IEEE802154_ATTR_COORD_PAN_ID] ||
+	    !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR] ||
+	    !info->attrs[IEEE802154_ATTR_CHANNEL] ||
+	    !info->attrs[IEEE802154_ATTR_BCN_ORD] ||
+	    !info->attrs[IEEE802154_ATTR_SF_ORD] ||
+	    !info->attrs[IEEE802154_ATTR_PAN_COORD] ||
+	    !info->attrs[IEEE802154_ATTR_BAT_EXT] ||
+	    !info->attrs[IEEE802154_ATTR_COORD_REALIGN]
+	 )
+		return -EINVAL;
+
+	dev = ieee802154_nl_get_dev(info);
+	if (!dev)
+		return -ENODEV;
+
+	addr.addr_type = IEEE802154_ADDR_SHORT;
+	addr.short_addr = nla_get_u16(
+			info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]);
+	addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]);
+
+	channel = nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]);
+	bcn_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_BCN_ORD]);
+	sf_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_SF_ORD]);
+	pan_coord = nla_get_u8(info->attrs[IEEE802154_ATTR_PAN_COORD]);
+	blx = nla_get_u8(info->attrs[IEEE802154_ATTR_BAT_EXT]);
+	coord_realign = nla_get_u8(info->attrs[IEEE802154_ATTR_COORD_REALIGN]);
+
+	ret = ieee802154_mlme_ops(dev)->start_req(dev, &addr, channel,
+		bcn_ord, sf_ord, pan_coord, blx, coord_realign);
+
+	dev_put(dev);
+	return ret;
+}
+
+static int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info)
+{
+	struct net_device *dev;
+	int ret;
+	u8 type;
+	u32 channels;
+	u8 duration;
+
+	if (!info->attrs[IEEE802154_ATTR_SCAN_TYPE] ||
+	    !info->attrs[IEEE802154_ATTR_CHANNELS] ||
+	    !info->attrs[IEEE802154_ATTR_DURATION])
+		return -EINVAL;
+
+	dev = ieee802154_nl_get_dev(info);
+	if (!dev)
+		return -ENODEV;
+
+	type = nla_get_u8(info->attrs[IEEE802154_ATTR_SCAN_TYPE]);
+	channels = nla_get_u32(info->attrs[IEEE802154_ATTR_CHANNELS]);
+	duration = nla_get_u8(info->attrs[IEEE802154_ATTR_DURATION]);
+
+	ret = ieee802154_mlme_ops(dev)->scan_req(dev, type, channels,
+			duration);
+
+	dev_put(dev);
+	return ret;
+}
+
+#define IEEE802154_OP(_cmd, _func)			\
+	{						\
+		.cmd	= _cmd,				\
+		.policy	= ieee802154_policy,		\
+		.doit	= _func,			\
+		.dumpit	= NULL,				\
+		.flags	= GENL_ADMIN_PERM,		\
+	}
+
+static struct genl_ops ieee802154_coordinator_ops[] = {
+	IEEE802154_OP(IEEE802154_ASSOCIATE_REQ, ieee802154_associate_req),
+	IEEE802154_OP(IEEE802154_ASSOCIATE_RESP, ieee802154_associate_resp),
+	IEEE802154_OP(IEEE802154_DISASSOCIATE_REQ, ieee802154_disassociate_req),
+	IEEE802154_OP(IEEE802154_SCAN_REQ, ieee802154_scan_req),
+	IEEE802154_OP(IEEE802154_START_REQ, ieee802154_start_req),
+};
+
+static int __init ieee802154_nl_init(void)
+{
+	int rc;
+	int i;
+
+	rc = genl_register_family(&ieee802154_coordinator_family);
+	if (rc)
+		goto fail;
+
+	rc = genl_register_mc_group(&ieee802154_coordinator_family,
+			&ieee802154_coord_mcgrp);
+	if (rc)
+		goto fail;
+
+	rc = genl_register_mc_group(&ieee802154_coordinator_family,
+			&ieee802154_beacon_mcgrp);
+	if (rc)
+		goto fail;
+
+
+	for (i = 0; i < ARRAY_SIZE(ieee802154_coordinator_ops); i++) {
+		rc = genl_register_ops(&ieee802154_coordinator_family,
+				&ieee802154_coordinator_ops[i]);
+		if (rc)
+			goto fail;
+	}
+
+	return 0;
+
+fail:
+	genl_unregister_family(&ieee802154_coordinator_family);
+	return rc;
+}
+module_init(ieee802154_nl_init);
+
+static void __exit ieee802154_nl_exit(void)
+{
+	genl_unregister_family(&ieee802154_coordinator_family);
+}
+module_exit(ieee802154_nl_exit);
+
diff --git a/net/ieee802154/nl_policy.c b/net/ieee802154/nl_policy.c
new file mode 100644
index 000000000000..c7d71d1adcac
--- /dev/null
+++ b/net/ieee802154/nl_policy.c
@@ -0,0 +1,52 @@
+/*
+ * nl802154.h
+ *
+ * Copyright (C) 2007, 2008 Siemens AG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <net/netlink.h>
+#include <linux/nl802154.h>
+
+#define NLA_HW_ADDR NLA_U64
+
+struct nla_policy ieee802154_policy[IEEE802154_ATTR_MAX + 1] = {
+	[IEEE802154_ATTR_DEV_NAME] = { .type = NLA_STRING, },
+	[IEEE802154_ATTR_DEV_INDEX] = { .type = NLA_U32, },
+
+	[IEEE802154_ATTR_STATUS] = { .type = NLA_U8, },
+	[IEEE802154_ATTR_SHORT_ADDR] = { .type = NLA_U16, },
+	[IEEE802154_ATTR_HW_ADDR] = { .type = NLA_HW_ADDR, },
+	[IEEE802154_ATTR_PAN_ID] = { .type = NLA_U16, },
+	[IEEE802154_ATTR_CHANNEL] = { .type = NLA_U8, },
+	[IEEE802154_ATTR_COORD_SHORT_ADDR] = { .type = NLA_U16, },
+	[IEEE802154_ATTR_COORD_HW_ADDR] = { .type = NLA_HW_ADDR, },
+	[IEEE802154_ATTR_COORD_PAN_ID] = { .type = NLA_U16, },
+	[IEEE802154_ATTR_SRC_SHORT_ADDR] = { .type = NLA_U16, },
+	[IEEE802154_ATTR_SRC_HW_ADDR] = { .type = NLA_HW_ADDR, },
+	[IEEE802154_ATTR_SRC_PAN_ID] = { .type = NLA_U16, },
+	[IEEE802154_ATTR_DEST_SHORT_ADDR] = { .type = NLA_U16, },
+	[IEEE802154_ATTR_DEST_HW_ADDR] = { .type = NLA_HW_ADDR, },
+	[IEEE802154_ATTR_DEST_PAN_ID] = { .type = NLA_U16, },
+
+	[IEEE802154_ATTR_CAPABILITY] = { .type = NLA_U8, },
+	[IEEE802154_ATTR_REASON] = { .type = NLA_U8, },
+	[IEEE802154_ATTR_SCAN_TYPE] = { .type = NLA_U8, },
+	[IEEE802154_ATTR_CHANNELS] = { .type = NLA_U32, },
+	[IEEE802154_ATTR_DURATION] = { .type = NLA_U8, },
+	[IEEE802154_ATTR_ED_LIST] = { .len = 27 },
+};
diff --git a/net/ieee802154/raw.c b/net/ieee802154/raw.c
new file mode 100644
index 000000000000..fca44d59f97e
--- /dev/null
+++ b/net/ieee802154/raw.c
@@ -0,0 +1,254 @@
+/*
+ * Raw IEEE 802.15.4 sockets
+ *
+ * Copyright 2007, 2008 Siemens AG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Written by:
+ * Sergey Lapin <slapin@ossfans.org>
+ * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
+ */
+
+#include <linux/net.h>
+#include <linux/module.h>
+#include <linux/if_arp.h>
+#include <linux/list.h>
+#include <net/sock.h>
+#include <net/ieee802154/af_ieee802154.h>
+
+#include "af802154.h"
+
+static HLIST_HEAD(raw_head);
+static DEFINE_RWLOCK(raw_lock);
+
+static void raw_hash(struct sock *sk)
+{
+	write_lock_bh(&raw_lock);
+	sk_add_node(sk, &raw_head);
+	sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
+	write_unlock_bh(&raw_lock);
+}
+
+static void raw_unhash(struct sock *sk)
+{
+	write_lock_bh(&raw_lock);
+	if (sk_del_node_init(sk))
+		sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
+	write_unlock_bh(&raw_lock);
+}
+
+static void raw_close(struct sock *sk, long timeout)
+{
+	sk_common_release(sk);
+}
+
+static int raw_bind(struct sock *sk, struct sockaddr *uaddr, int len)
+{
+	struct sockaddr_ieee802154 *addr = (struct sockaddr_ieee802154 *)uaddr;
+	int err = 0;
+	struct net_device *dev = NULL;
+
+	if (len < sizeof(*addr))
+		return -EINVAL;
+
+	if (addr->family != AF_IEEE802154)
+		return -EINVAL;
+
+	lock_sock(sk);
+
+	dev = ieee802154_get_dev(sock_net(sk), &addr->addr);
+	if (!dev) {
+		err = -ENODEV;
+		goto out;
+	}
+
+	if (dev->type != ARPHRD_IEEE802154_PHY &&
+	    dev->type != ARPHRD_IEEE802154) {
+		err = -ENODEV;
+		goto out_put;
+	}
+
+	sk->sk_bound_dev_if = dev->ifindex;
+	sk_dst_reset(sk);
+
+out_put:
+	dev_put(dev);
+out:
+	release_sock(sk);
+
+	return err;
+}
+
+static int raw_connect(struct sock *sk, struct sockaddr *uaddr,
+			int addr_len)
+{
+	return -ENOTSUPP;
+}
+
+static int raw_disconnect(struct sock *sk, int flags)
+{
+	return 0;
+}
+
+static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+		       size_t size)
+{
+	struct net_device *dev;
+	unsigned mtu;
+	struct sk_buff *skb;
+	int err;
+
+	if (msg->msg_flags & MSG_OOB) {
+		pr_debug("msg->msg_flags = 0x%x\n", msg->msg_flags);
+		return -EOPNOTSUPP;
+	}
+
+	lock_sock(sk);
+	if (!sk->sk_bound_dev_if)
+		dev = dev_getfirstbyhwtype(sock_net(sk), ARPHRD_IEEE802154);
+	else
+		dev = dev_get_by_index(sock_net(sk), sk->sk_bound_dev_if);
+	release_sock(sk);
+
+	if (!dev) {
+		pr_debug("no dev\n");
+		err = -ENXIO;
+		goto out;
+	}
+
+	mtu = dev->mtu;
+	pr_debug("name = %s, mtu = %u\n", dev->name, mtu);
+
+	if (size > mtu) {
+		pr_debug("size = %Zu, mtu = %u\n", size, mtu);
+		err = -EINVAL;
+		goto out_dev;
+	}
+
+	skb = sock_alloc_send_skb(sk, LL_ALLOCATED_SPACE(dev) + size,
+			msg->msg_flags & MSG_DONTWAIT, &err);
+	if (!skb)
+		goto out_dev;
+
+	skb_reserve(skb, LL_RESERVED_SPACE(dev));
+
+	skb_reset_mac_header(skb);
+	skb_reset_network_header(skb);
+
+	err = memcpy_fromiovec(skb_put(skb, size), msg->msg_iov, size);
+	if (err < 0)
+		goto out_skb;
+
+	skb->dev = dev;
+	skb->sk  = sk;
+	skb->protocol = htons(ETH_P_IEEE802154);
+
+	dev_put(dev);
+
+	err = dev_queue_xmit(skb);
+	if (err > 0)
+		err = net_xmit_errno(err);
+
+	return err ?: size;
+
+out_skb:
+	kfree_skb(skb);
+out_dev:
+	dev_put(dev);
+out:
+	return err;
+}
+
+static int raw_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+		       size_t len, int noblock, int flags, int *addr_len)
+{
+	size_t copied = 0;
+	int err = -EOPNOTSUPP;
+	struct sk_buff *skb;
+
+	skb = skb_recv_datagram(sk, flags, noblock, &err);
+	if (!skb)
+		goto out;
+
+	copied = skb->len;
+	if (len < copied) {
+		msg->msg_flags |= MSG_TRUNC;
+		copied = len;
+	}
+
+	err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
+	if (err)
+		goto done;
+
+	sock_recv_timestamp(msg, sk, skb);
+
+	if (flags & MSG_TRUNC)
+		copied = skb->len;
+done:
+	skb_free_datagram(sk, skb);
+out:
+	if (err)
+		return err;
+	return copied;
+}
+
+static int raw_rcv_skb(struct sock *sk, struct sk_buff *skb)
+{
+	if (sock_queue_rcv_skb(sk, skb) < 0) {
+		atomic_inc(&sk->sk_drops);
+		kfree_skb(skb);
+		return NET_RX_DROP;
+	}
+
+	return NET_RX_SUCCESS;
+}
+
+
+void ieee802154_raw_deliver(struct net_device *dev, struct sk_buff *skb)
+{
+	struct sock *sk;
+	struct hlist_node *node;
+
+	read_lock(&raw_lock);
+	sk_for_each(sk, node, &raw_head) {
+		bh_lock_sock(sk);
+		if (!sk->sk_bound_dev_if ||
+		    sk->sk_bound_dev_if == dev->ifindex) {
+
+			struct sk_buff *clone;
+
+			clone = skb_clone(skb, GFP_ATOMIC);
+			if (clone)
+				raw_rcv_skb(sk, clone);
+		}
+		bh_unlock_sock(sk);
+	}
+	read_unlock(&raw_lock);
+}
+
+struct proto ieee802154_raw_prot = {
+	.name		= "IEEE-802.15.4-RAW",
+	.owner		= THIS_MODULE,
+	.obj_size	= sizeof(struct sock),
+	.close		= raw_close,
+	.bind		= raw_bind,
+	.sendmsg	= raw_sendmsg,
+	.recvmsg	= raw_recvmsg,
+	.hash		= raw_hash,
+	.unhash		= raw_unhash,
+	.connect	= raw_connect,
+	.disconnect	= raw_disconnect,
+};
+
diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig
index 5b919f7b45db..70491d9035eb 100644
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -273,29 +273,20 @@ config IP_PIMSM_V2
 	  you want to play with it.
 
 config ARPD
-	bool "IP: ARP daemon support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	bool "IP: ARP daemon support"
 	---help---
-	  Normally, the kernel maintains an internal cache which maps IP
-	  addresses to hardware addresses on the local network, so that
-	  Ethernet/Token Ring/ etc. frames are sent to the proper address on
-	  the physical networking layer. For small networks having a few
-	  hundred directly connected hosts or less, keeping this address
-	  resolution (ARP) cache inside the kernel works well. However,
-	  maintaining an internal ARP cache does not work well for very large
-	  switched networks, and will use a lot of kernel memory if TCP/IP
-	  connections are made to many machines on the network.
-
-	  If you say Y here, the kernel's internal ARP cache will never grow
-	  to more than 256 entries (the oldest entries are expired in a LIFO
-	  manner) and communication will be attempted with the user space ARP
-	  daemon arpd. Arpd then answers the address resolution request either
-	  from its own cache or by asking the net.
-
-	  This code is experimental and also obsolete. If you want to use it,
-	  you need to find a version of the daemon arpd on the net somewhere,
-	  and you should also say Y to "Kernel/User network link driver",
-	  below. If unsure, say N.
+	  The kernel maintains an internal cache which maps IP addresses to
+	  hardware addresses on the local network, so that Ethernet/Token Ring/
+	  etc. frames are sent to the proper address on the physical networking
+	  layer. Normally, kernel uses the ARP protocol to resolve these
+	  mappings.
+
+	  Saying Y here adds support to have an user space daemon to do this
+	  resolution instead. This is useful for implementing an alternate
+	  address resolution protocol (e.g. NHRP on mGRE tunnels) and also for
+	  testing purposes.
+
+	  If unsure, say N.
 
 config SYN_COOKIES
 	bool "IP: TCP syncookie support (disabled per default)"
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 7f03373b8c07..566ea6c4321d 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -116,7 +116,6 @@
 #include <linux/mroute.h>
 #endif
 
-extern void ip_mc_drop_socket(struct sock *sk);
 
 /* The inetsw table contains everything that inet_create needs to
  * build a new socket.
@@ -375,6 +374,7 @@ lookup_protocol:
 	inet->uc_ttl	= -1;
 	inet->mc_loop	= 1;
 	inet->mc_ttl	= 1;
+	inet->mc_all	= 1;
 	inet->mc_index	= 0;
 	inet->mc_list	= NULL;
 
@@ -1003,8 +1003,6 @@ void inet_register_protosw(struct inet_protosw *p)
 out:
 	spin_unlock_bh(&inetsw_lock);
 
-	synchronize_net();
-
 	return;
 
 out_permanent:
@@ -1248,13 +1246,20 @@ static struct sk_buff **inet_gro_receive(struct sk_buff **head,
 	struct sk_buff **pp = NULL;
 	struct sk_buff *p;
 	struct iphdr *iph;
+	unsigned int hlen;
+	unsigned int off;
+	unsigned int id;
 	int flush = 1;
 	int proto;
-	int id;
 
-	iph = skb_gro_header(skb, sizeof(*iph));
-	if (unlikely(!iph))
-		goto out;
+	off = skb_gro_offset(skb);
+	hlen = off + sizeof(*iph);
+	iph = skb_gro_header_fast(skb, off);
+	if (skb_gro_header_hard(skb, hlen)) {
+		iph = skb_gro_header_slow(skb, hlen, off);
+		if (unlikely(!iph))
+			goto out;
+	}
 
 	proto = iph->protocol & (MAX_INET_PROTOS - 1);
 
@@ -1269,9 +1274,9 @@ static struct sk_buff **inet_gro_receive(struct sk_buff **head,
 	if (unlikely(ip_fast_csum((u8 *)iph, iph->ihl)))
 		goto out_unlock;
 
-	flush = ntohs(iph->tot_len) != skb_gro_len(skb) ||
-		iph->frag_off != htons(IP_DF);
-	id = ntohs(iph->id);
+	id = ntohl(*(u32 *)&iph->id);
+	flush = (u16)((ntohl(*(u32 *)iph) ^ skb_gro_len(skb)) | (id ^ IP_DF));
+	id >>= 16;
 
 	for (p = *head; p; p = p->next) {
 		struct iphdr *iph2;
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index f11931c18381..8a3881e28aca 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -468,13 +468,13 @@ int arp_find(unsigned char *haddr, struct sk_buff *skb)
 	__be32 paddr;
 	struct neighbour *n;
 
-	if (!skb->dst) {
+	if (!skb_dst(skb)) {
 		printk(KERN_DEBUG "arp_find is called with dst==NULL\n");
 		kfree_skb(skb);
 		return 1;
 	}
 
-	paddr = skb->rtable->rt_gateway;
+	paddr = skb_rtable(skb)->rt_gateway;
 
 	if (arp_set_predefined(inet_addr_type(dev_net(dev), paddr), haddr, paddr, dev))
 		return 0;
@@ -817,7 +817,7 @@ static int arp_process(struct sk_buff *skb)
 	if (arp->ar_op == htons(ARPOP_REQUEST) &&
 	    ip_route_input(skb, tip, sip, 0, dev) == 0) {
 
-		rt = skb->rtable;
+		rt = skb_rtable(skb);
 		addr_type = rt->rt_type;
 
 		if (addr_type == RTN_LOCAL) {
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 126bb911880f..3863c3a4223f 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1347,7 +1347,8 @@ static int devinet_sysctl_forward(ctl_table *ctl, int write,
 		struct net *net = ctl->extra2;
 
 		if (valp != &IPV4_DEVCONF_DFLT(net, FORWARDING)) {
-			rtnl_lock();
+			if (!rtnl_trylock())
+				return restart_syscall();
 			if (valp == &IPV4_DEVCONF_ALL(net, FORWARDING)) {
 				inet_forward_change(net);
 			} else if (*valp) {
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index cafcc49d0993..e2f950592566 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -40,7 +40,6 @@
 #include <net/route.h>
 #include <net/tcp.h>
 #include <net/sock.h>
-#include <net/icmp.h>
 #include <net/arp.h>
 #include <net/ip_fib.h>
 #include <net/rtnetlink.h>
diff --git a/net/ipv4/fib_hash.c b/net/ipv4/fib_hash.c
index ded8c44fb848..ecd39454235c 100644
--- a/net/ipv4/fib_hash.c
+++ b/net/ipv4/fib_hash.c
@@ -263,7 +263,6 @@ fn_hash_lookup(struct fib_table *tb, const struct flowi *flp, struct fib_result
 
 			err = fib_semantic_match(&f->fn_alias,
 						 flp, res,
-						 f->fn_key, fz->fz_mask,
 						 fz->fz_order);
 			if (err <= 0)
 				goto out;
diff --git a/net/ipv4/fib_lookup.h b/net/ipv4/fib_lookup.h
index 2c1623d2768b..637b133973bd 100644
--- a/net/ipv4/fib_lookup.h
+++ b/net/ipv4/fib_lookup.h
@@ -22,8 +22,7 @@ struct fib_alias {
 /* Exported by fib_semantics.c */
 extern int fib_semantic_match(struct list_head *head,
 			      const struct flowi *flp,
-			      struct fib_result *res, __be32 zone, __be32 mask,
-				int prefixlen);
+			      struct fib_result *res, int prefixlen);
 extern void fib_release_info(struct fib_info *);
 extern struct fib_info *fib_create_info(struct fib_config *cfg);
 extern int fib_nh_match(struct fib_config *cfg, struct fib_info *fi);
diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c
index 6080d7120821..92d9d97ec5e3 100644
--- a/net/ipv4/fib_rules.c
+++ b/net/ipv4/fib_rules.c
@@ -134,7 +134,7 @@ static const struct nla_policy fib4_rule_policy[FRA_MAX+1] = {
 };
 
 static int fib4_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
-			       struct nlmsghdr *nlh, struct fib_rule_hdr *frh,
+			       struct fib_rule_hdr *frh,
 			       struct nlattr **tb)
 {
 	struct net *net = sock_net(skb->sk);
@@ -209,7 +209,7 @@ static int fib4_rule_compare(struct fib_rule *rule, struct fib_rule_hdr *frh,
 }
 
 static int fib4_rule_fill(struct fib_rule *rule, struct sk_buff *skb,
-			  struct nlmsghdr *nlh, struct fib_rule_hdr *frh)
+			  struct fib_rule_hdr *frh)
 {
 	struct fib4_rule *rule4 = (struct fib4_rule *) rule;
 
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index f831df500907..9b096d6ff3f2 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -866,8 +866,7 @@ failure:
 
 /* Note! fib_semantic_match intentionally uses  RCU list functions. */
 int fib_semantic_match(struct list_head *head, const struct flowi *flp,
-		       struct fib_result *res, __be32 zone, __be32 mask,
-			int prefixlen)
+		       struct fib_result *res, int prefixlen)
 {
 	struct fib_alias *fa;
 	int nh_sel = 0;
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 33c7c85dfe40..012cf5a68581 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -123,6 +123,7 @@ struct tnode {
 	union {
 		struct rcu_head rcu;
 		struct work_struct work;
+		struct tnode *tnode_free;
 	};
 	struct node *child[0];
 };
@@ -161,6 +162,8 @@ static void tnode_put_child_reorg(struct tnode *tn, int i, struct node *n,
 static struct node *resize(struct trie *t, struct tnode *tn);
 static struct tnode *inflate(struct trie *t, struct tnode *tn);
 static struct tnode *halve(struct trie *t, struct tnode *tn);
+/* tnodes to free after resize(); protected by RTNL */
+static struct tnode *tnode_free_head;
 
 static struct kmem_cache *fn_alias_kmem __read_mostly;
 static struct kmem_cache *trie_leaf_kmem __read_mostly;
@@ -385,6 +388,24 @@ static inline void tnode_free(struct tnode *tn)
 		call_rcu(&tn->rcu, __tnode_free_rcu);
 }
 
+static void tnode_free_safe(struct tnode *tn)
+{
+	BUG_ON(IS_LEAF(tn));
+	tn->tnode_free = tnode_free_head;
+	tnode_free_head = tn;
+}
+
+static void tnode_free_flush(void)
+{
+	struct tnode *tn;
+
+	while ((tn = tnode_free_head)) {
+		tnode_free_head = tn->tnode_free;
+		tn->tnode_free = NULL;
+		tnode_free(tn);
+	}
+}
+
 static struct leaf *leaf_new(void)
 {
 	struct leaf *l = kmem_cache_alloc(trie_leaf_kmem, GFP_KERNEL);
@@ -495,7 +516,7 @@ static struct node *resize(struct trie *t, struct tnode *tn)
 
 	/* No children */
 	if (tn->empty_children == tnode_child_length(tn)) {
-		tnode_free(tn);
+		tnode_free_safe(tn);
 		return NULL;
 	}
 	/* One child */
@@ -509,7 +530,7 @@ static struct node *resize(struct trie *t, struct tnode *tn)
 
 			/* compress one level */
 			node_set_parent(n, NULL);
-			tnode_free(tn);
+			tnode_free_safe(tn);
 			return n;
 		}
 	/*
@@ -670,7 +691,7 @@ static struct node *resize(struct trie *t, struct tnode *tn)
 			/* compress one level */
 
 			node_set_parent(n, NULL);
-			tnode_free(tn);
+			tnode_free_safe(tn);
 			return n;
 		}
 
@@ -756,7 +777,7 @@ static struct tnode *inflate(struct trie *t, struct tnode *tn)
 			put_child(t, tn, 2*i, inode->child[0]);
 			put_child(t, tn, 2*i+1, inode->child[1]);
 
-			tnode_free(inode);
+			tnode_free_safe(inode);
 			continue;
 		}
 
@@ -801,9 +822,9 @@ static struct tnode *inflate(struct trie *t, struct tnode *tn)
 		put_child(t, tn, 2*i, resize(t, left));
 		put_child(t, tn, 2*i+1, resize(t, right));
 
-		tnode_free(inode);
+		tnode_free_safe(inode);
 	}
-	tnode_free(oldtnode);
+	tnode_free_safe(oldtnode);
 	return tn;
 nomem:
 	{
@@ -885,7 +906,7 @@ static struct tnode *halve(struct trie *t, struct tnode *tn)
 		put_child(t, newBinNode, 1, right);
 		put_child(t, tn, i/2, resize(t, newBinNode));
 	}
-	tnode_free(oldtnode);
+	tnode_free_safe(oldtnode);
 	return tn;
 nomem:
 	{
@@ -983,13 +1004,12 @@ fib_find_node(struct trie *t, u32 key)
 	return NULL;
 }
 
-static struct node *trie_rebalance(struct trie *t, struct tnode *tn)
+static void trie_rebalance(struct trie *t, struct tnode *tn)
 {
 	int wasfull;
 	t_key cindex, key;
 	struct tnode *tp;
 
-	preempt_disable();
 	key = tn->key;
 
 	while (tn != NULL && (tp = node_parent((struct node *)tn)) != NULL) {
@@ -1001,6 +1021,7 @@ static struct node *trie_rebalance(struct trie *t, struct tnode *tn)
 				      (struct node *)tn, wasfull);
 
 		tp = node_parent((struct node *) tn);
+		tnode_free_flush();
 		if (!tp)
 			break;
 		tn = tp;
@@ -1010,8 +1031,10 @@ static struct node *trie_rebalance(struct trie *t, struct tnode *tn)
 	if (IS_TNODE(tn))
 		tn = (struct tnode *)resize(t, (struct tnode *)tn);
 
-	preempt_enable();
-	return (struct node *)tn;
+	rcu_assign_pointer(t->trie, (struct node *)tn);
+	tnode_free_flush();
+
+	return;
 }
 
 /* only used from updater-side */
@@ -1159,7 +1182,7 @@ static struct list_head *fib_insert_node(struct trie *t, u32 key, int plen)
 
 	/* Rebalance the trie */
 
-	rcu_assign_pointer(t->trie, trie_rebalance(t, tp));
+	trie_rebalance(t, tp);
 done:
 	return fa_head;
 }
@@ -1351,8 +1374,7 @@ static int check_leaf(struct trie *t, struct leaf *l,
 		if (l->key != (key & ntohl(mask)))
 			continue;
 
-		err = fib_semantic_match(&li->falh, flp, res,
-					 htonl(l->key), mask, plen);
+		err = fib_semantic_match(&li->falh, flp, res, plen);
 
 #ifdef CONFIG_IP_FIB_TRIE_STATS
 		if (err <= 0)
@@ -1579,7 +1601,7 @@ static void trie_leaf_remove(struct trie *t, struct leaf *l)
 	if (tp) {
 		t_key cindex = tkey_extract_bits(l->key, tp->pos, tp->bits);
 		put_child(t, (struct tnode *)tp, cindex, NULL);
-		rcu_assign_pointer(t->trie, trie_rebalance(t, tp));
+		trie_rebalance(t, tp);
 	} else
 		rcu_assign_pointer(t->trie, NULL);
 
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 3f50807237e0..97c410e84388 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -356,7 +356,7 @@ static void icmp_push_reply(struct icmp_bxm *icmp_param,
 static void icmp_reply(struct icmp_bxm *icmp_param, struct sk_buff *skb)
 {
 	struct ipcm_cookie ipc;
-	struct rtable *rt = skb->rtable;
+	struct rtable *rt = skb_rtable(skb);
 	struct net *net = dev_net(rt->u.dst.dev);
 	struct sock *sk;
 	struct inet_sock *inet;
@@ -416,7 +416,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
 	struct iphdr *iph;
 	int room;
 	struct icmp_bxm icmp_param;
-	struct rtable *rt = skb_in->rtable;
+	struct rtable *rt = skb_rtable(skb_in);
 	struct ipcm_cookie ipc;
 	__be32 saddr;
 	u8  tos;
@@ -591,13 +591,13 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
 				goto relookup_failed;
 
 			/* Ugh! */
-			odst = skb_in->dst;
+			odst = skb_dst(skb_in);
 			err = ip_route_input(skb_in, fl.fl4_dst, fl.fl4_src,
 					     RT_TOS(tos), rt2->u.dst.dev);
 
 			dst_release(&rt2->u.dst);
-			rt2 = skb_in->rtable;
-			skb_in->dst = odst;
+			rt2 = skb_rtable(skb_in);
+			skb_dst_set(skb_in, odst);
 		}
 
 		if (err)
@@ -659,7 +659,7 @@ static void icmp_unreach(struct sk_buff *skb)
 	u32 info = 0;
 	struct net *net;
 
-	net = dev_net(skb->dst->dev);
+	net = dev_net(skb_dst(skb)->dev);
 
 	/*
 	 *	Incomplete header ?
@@ -822,7 +822,7 @@ static void icmp_echo(struct sk_buff *skb)
 {
 	struct net *net;
 
-	net = dev_net(skb->dst->dev);
+	net = dev_net(skb_dst(skb)->dev);
 	if (!net->ipv4.sysctl_icmp_echo_ignore_all) {
 		struct icmp_bxm icmp_param;
 
@@ -873,7 +873,7 @@ static void icmp_timestamp(struct sk_buff *skb)
 out:
 	return;
 out_err:
-	ICMP_INC_STATS_BH(dev_net(skb->dst->dev), ICMP_MIB_INERRORS);
+	ICMP_INC_STATS_BH(dev_net(skb_dst(skb)->dev), ICMP_MIB_INERRORS);
 	goto out;
 }
 
@@ -926,7 +926,7 @@ static void icmp_address(struct sk_buff *skb)
 
 static void icmp_address_reply(struct sk_buff *skb)
 {
-	struct rtable *rt = skb->rtable;
+	struct rtable *rt = skb_rtable(skb);
 	struct net_device *dev = skb->dev;
 	struct in_device *in_dev;
 	struct in_ifaddr *ifa;
@@ -970,7 +970,7 @@ static void icmp_discard(struct sk_buff *skb)
 int icmp_rcv(struct sk_buff *skb)
 {
 	struct icmphdr *icmph;
-	struct rtable *rt = skb->rtable;
+	struct rtable *rt = skb_rtable(skb);
 	struct net *net = dev_net(rt->u.dst.dev);
 
 	if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb)) {
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 9eb6219af615..01b4284ed694 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -311,7 +311,7 @@ static struct sk_buff *igmpv3_newpack(struct net_device *dev, int size)
 		return NULL;
 	}
 
-	skb->dst = &rt->u.dst;
+	skb_dst_set(skb, &rt->u.dst);
 	skb->dev = dev;
 
 	skb_reserve(skb, LL_RESERVED_SPACE(dev));
@@ -659,7 +659,7 @@ static int igmp_send_report(struct in_device *in_dev, struct ip_mc_list *pmc,
 		return -1;
 	}
 
-	skb->dst = &rt->u.dst;
+	skb_dst_set(skb, &rt->u.dst);
 
 	skb_reserve(skb, LL_RESERVED_SPACE(dev));
 
@@ -948,7 +948,7 @@ int igmp_rcv(struct sk_buff *skb)
 	case IGMPV2_HOST_MEMBERSHIP_REPORT:
 	case IGMPV3_HOST_MEMBERSHIP_REPORT:
 		/* Is it our report looped back? */
-		if (skb->rtable->fl.iif == 0)
+		if (skb_rtable(skb)->fl.iif == 0)
 			break;
 		/* don't rely on MC router hearing unicast reports */
 		if (skb->pkt_type == PACKET_MULTICAST ||
@@ -2196,7 +2196,7 @@ int ip_mc_sf_allow(struct sock *sk, __be32 loc_addr, __be32 rmt_addr, int dif)
 			break;
 	}
 	if (!pmc)
-		return 1;
+		return inet->mc_all;
 	psl = pmc->sflist;
 	if (!psl)
 		return pmc->sfmode == MCAST_EXCLUDE;
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index 588a7796e3e3..a706a47f4dbb 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -156,10 +156,10 @@ static int inet_csk_diag_fill(struct sock *sk,
 	r->idiag_inode = sock_i_ino(sk);
 
 	if (minfo) {
-		minfo->idiag_rmem = atomic_read(&sk->sk_rmem_alloc);
+		minfo->idiag_rmem = sk_rmem_alloc_get(sk);
 		minfo->idiag_wmem = sk->sk_wmem_queued;
 		minfo->idiag_fmem = sk->sk_forward_alloc;
-		minfo->idiag_tmem = atomic_read(&sk->sk_wmem_alloc);
+		minfo->idiag_tmem = sk_wmem_alloc_get(sk);
 	}
 
 	handler->idiag_get_info(sk, r, info);
@@ -198,8 +198,6 @@ static int inet_twsk_diag_fill(struct inet_timewait_sock *tw,
 		tmo = 0;
 
 	r->idiag_family	      = tw->tw_family;
-	r->idiag_state	      = tw->tw_state;
-	r->idiag_timer	      = 0;
 	r->idiag_retrans      = 0;
 	r->id.idiag_if	      = tw->tw_bound_dev_if;
 	r->id.idiag_cookie[0] = (u32)(unsigned long)tw;
diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c
index 8554d0ea1719..61283f928825 100644
--- a/net/ipv4/inet_timewait_sock.c
+++ b/net/ipv4/inet_timewait_sock.c
@@ -9,6 +9,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/kmemcheck.h>
 #include <net/inet_hashtables.h>
 #include <net/inet_timewait_sock.h>
 #include <net/ip.h>
@@ -49,19 +50,22 @@ static void __inet_twsk_kill(struct inet_timewait_sock *tw,
 	inet_twsk_put(tw);
 }
 
-void inet_twsk_put(struct inet_timewait_sock *tw)
+static noinline void inet_twsk_free(struct inet_timewait_sock *tw)
 {
-	if (atomic_dec_and_test(&tw->tw_refcnt)) {
-		struct module *owner = tw->tw_prot->owner;
-		twsk_destructor((struct sock *)tw);
+	struct module *owner = tw->tw_prot->owner;
+	twsk_destructor((struct sock *)tw);
 #ifdef SOCK_REFCNT_DEBUG
-		printk(KERN_DEBUG "%s timewait_sock %p released\n",
-		       tw->tw_prot->name, tw);
+	pr_debug("%s timewait_sock %p released\n", tw->tw_prot->name, tw);
 #endif
-		release_net(twsk_net(tw));
-		kmem_cache_free(tw->tw_prot->twsk_prot->twsk_slab, tw);
-		module_put(owner);
-	}
+	release_net(twsk_net(tw));
+	kmem_cache_free(tw->tw_prot->twsk_prot->twsk_slab, tw);
+	module_put(owner);
+}
+
+void inet_twsk_put(struct inet_timewait_sock *tw)
+{
+	if (atomic_dec_and_test(&tw->tw_refcnt))
+		inet_twsk_free(tw);
 }
 EXPORT_SYMBOL_GPL(inet_twsk_put);
 
@@ -117,6 +121,8 @@ struct inet_timewait_sock *inet_twsk_alloc(const struct sock *sk, const int stat
 	if (tw != NULL) {
 		const struct inet_sock *inet = inet_sk(sk);
 
+		kmemcheck_annotate_bitfield(tw, flags);
+
 		/* Give us an identity. */
 		tw->tw_daddr	    = inet->daddr;
 		tw->tw_rcv_saddr    = inet->rcv_saddr;
diff --git a/net/ipv4/ip_forward.c b/net/ipv4/ip_forward.c
index df3fe50bbf0d..a2991bc8e32e 100644
--- a/net/ipv4/ip_forward.c
+++ b/net/ipv4/ip_forward.c
@@ -42,7 +42,7 @@ static int ip_forward_finish(struct sk_buff *skb)
 {
 	struct ip_options * opt	= &(IPCB(skb)->opt);
 
-	IP_INC_STATS_BH(dev_net(skb->dst->dev), IPSTATS_MIB_OUTFORWDATAGRAMS);
+	IP_INC_STATS_BH(dev_net(skb_dst(skb)->dev), IPSTATS_MIB_OUTFORWDATAGRAMS);
 
 	if (unlikely(opt->optlen))
 		ip_forward_options(skb);
@@ -81,7 +81,7 @@ int ip_forward(struct sk_buff *skb)
 	if (!xfrm4_route_forward(skb))
 		goto drop;
 
-	rt = skb->rtable;
+	rt = skb_rtable(skb);
 
 	if (opt->is_strictroute && rt->rt_dst != rt->rt_gateway)
 		goto sr_failed;
@@ -123,7 +123,7 @@ sr_failed:
 
 too_many_hops:
 	/* Tell the sender its packet died... */
-	IP_INC_STATS_BH(dev_net(skb->dst->dev), IPSTATS_MIB_INHDRERRORS);
+	IP_INC_STATS_BH(dev_net(skb_dst(skb)->dev), IPSTATS_MIB_INHDRERRORS);
 	icmp_send(skb, ICMP_TIME_EXCEEDED, ICMP_EXC_TTL, 0);
 drop:
 	kfree_skb(skb);
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index 7985346653bd..575f9bd51ccd 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -507,7 +507,7 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *prev,
 	/* If the first fragment is fragmented itself, we split
 	 * it to two chunks: the first with data and paged part
 	 * and the second, holding only fragments. */
-	if (skb_shinfo(head)->frag_list) {
+	if (skb_has_frags(head)) {
 		struct sk_buff *clone;
 		int i, plen = 0;
 
@@ -516,7 +516,7 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *prev,
 		clone->next = head->next;
 		head->next = clone;
 		skb_shinfo(clone)->frag_list = skb_shinfo(head)->frag_list;
-		skb_shinfo(head)->frag_list = NULL;
+		skb_frag_list_init(head);
 		for (i=0; i<skb_shinfo(head)->nr_frags; i++)
 			plen += skb_shinfo(head)->frags[i].size;
 		clone->len = clone->data_len = head->data_len - plen;
@@ -573,7 +573,7 @@ int ip_defrag(struct sk_buff *skb, u32 user)
 	struct ipq *qp;
 	struct net *net;
 
-	net = skb->dev ? dev_net(skb->dev) : dev_net(skb->dst->dev);
+	net = skb->dev ? dev_net(skb->dev) : dev_net(skb_dst(skb)->dev);
 	IP_INC_STATS_BH(net, IPSTATS_MIB_REASMREQDS);
 
 	/* Start by cleaning up the memory. */
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index e62510d5ea5a..44e2a3d2359a 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -602,7 +602,7 @@ static int ipgre_rcv(struct sk_buff *skb)
 #ifdef CONFIG_NET_IPGRE_BROADCAST
 		if (ipv4_is_multicast(iph->daddr)) {
 			/* Looped back packet, drop it! */
-			if (skb->rtable->fl.iif == 0)
+			if (skb_rtable(skb)->fl.iif == 0)
 				goto drop;
 			stats->multicast++;
 			skb->pkt_type = PACKET_BROADCAST;
@@ -643,8 +643,7 @@ static int ipgre_rcv(struct sk_buff *skb)
 		stats->rx_packets++;
 		stats->rx_bytes += len;
 		skb->dev = tunnel->dev;
-		dst_release(skb->dst);
-		skb->dst = NULL;
+		skb_dst_drop(skb);
 		nf_reset(skb);
 
 		skb_reset_network_header(skb);
@@ -698,13 +697,13 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 	if ((dst = tiph->daddr) == 0) {
 		/* NBMA tunnel */
 
-		if (skb->dst == NULL) {
+		if (skb_dst(skb) == NULL) {
 			stats->tx_fifo_errors++;
 			goto tx_error;
 		}
 
 		if (skb->protocol == htons(ETH_P_IP)) {
-			rt = skb->rtable;
+			rt = skb_rtable(skb);
 			if ((dst = rt->rt_gateway) == 0)
 				goto tx_error_icmp;
 		}
@@ -712,7 +711,7 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 		else if (skb->protocol == htons(ETH_P_IPV6)) {
 			struct in6_addr *addr6;
 			int addr_type;
-			struct neighbour *neigh = skb->dst->neighbour;
+			struct neighbour *neigh = skb_dst(skb)->neighbour;
 
 			if (neigh == NULL)
 				goto tx_error;
@@ -766,10 +765,10 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (df)
 		mtu = dst_mtu(&rt->u.dst) - dev->hard_header_len - tunnel->hlen;
 	else
-		mtu = skb->dst ? dst_mtu(skb->dst) : dev->mtu;
+		mtu = skb_dst(skb) ? dst_mtu(skb_dst(skb)) : dev->mtu;
 
-	if (skb->dst)
-		skb->dst->ops->update_pmtu(skb->dst, mtu);
+	if (skb_dst(skb))
+		skb_dst(skb)->ops->update_pmtu(skb_dst(skb), mtu);
 
 	if (skb->protocol == htons(ETH_P_IP)) {
 		df |= (old_iph->frag_off&htons(IP_DF));
@@ -783,14 +782,14 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 	}
 #ifdef CONFIG_IPV6
 	else if (skb->protocol == htons(ETH_P_IPV6)) {
-		struct rt6_info *rt6 = (struct rt6_info *)skb->dst;
+		struct rt6_info *rt6 = (struct rt6_info *)skb_dst(skb);
 
-		if (rt6 && mtu < dst_mtu(skb->dst) && mtu >= IPV6_MIN_MTU) {
+		if (rt6 && mtu < dst_mtu(skb_dst(skb)) && mtu >= IPV6_MIN_MTU) {
 			if ((tunnel->parms.iph.daddr &&
 			     !ipv4_is_multicast(tunnel->parms.iph.daddr)) ||
 			    rt6->rt6i_dst.plen == 128) {
 				rt6->rt6i_flags |= RTF_MODIFIED;
-				skb->dst->metrics[RTAX_MTU-1] = mtu;
+				skb_dst(skb)->metrics[RTAX_MTU-1] = mtu;
 			}
 		}
 
@@ -837,8 +836,8 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 	memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
 	IPCB(skb)->flags &= ~(IPSKB_XFRM_TUNNEL_SIZE | IPSKB_XFRM_TRANSFORMED |
 			      IPSKB_REROUTED);
-	dst_release(skb->dst);
-	skb->dst = &rt->u.dst;
+	skb_dst_drop(skb);
+	skb_dst_set(skb, &rt->u.dst);
 
 	/*
 	 *	Push down and install the IPIP header.
@@ -1238,6 +1237,7 @@ static void ipgre_tunnel_setup(struct net_device *dev)
 	dev->iflink		= 0;
 	dev->addr_len		= 4;
 	dev->features		|= NETIF_F_NETNS_LOCAL;
+	dev->priv_flags		&= ~IFF_XMIT_DST_RELEASE;
 }
 
 static int ipgre_tunnel_init(struct net_device *dev)
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index 1a58a6fa1dc0..490ce20faf38 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -329,7 +329,7 @@ static int ip_rcv_finish(struct sk_buff *skb)
 	 *	Initialise the virtual path cache for the packet. It describes
 	 *	how the packet travels inside Linux networking.
 	 */
-	if (skb->dst == NULL) {
+	if (skb_dst(skb) == NULL) {
 		int err = ip_route_input(skb, iph->daddr, iph->saddr, iph->tos,
 					 skb->dev);
 		if (unlikely(err)) {
@@ -344,9 +344,9 @@ static int ip_rcv_finish(struct sk_buff *skb)
 	}
 
 #ifdef CONFIG_NET_CLS_ROUTE
-	if (unlikely(skb->dst->tclassid)) {
+	if (unlikely(skb_dst(skb)->tclassid)) {
 		struct ip_rt_acct *st = per_cpu_ptr(ip_rt_acct, smp_processor_id());
-		u32 idx = skb->dst->tclassid;
+		u32 idx = skb_dst(skb)->tclassid;
 		st[idx&0xFF].o_packets++;
 		st[idx&0xFF].o_bytes += skb->len;
 		st[(idx>>16)&0xFF].i_packets++;
@@ -357,11 +357,13 @@ static int ip_rcv_finish(struct sk_buff *skb)
 	if (iph->ihl > 5 && ip_rcv_options(skb))
 		goto drop;
 
-	rt = skb->rtable;
-	if (rt->rt_type == RTN_MULTICAST)
-		IP_INC_STATS_BH(dev_net(rt->u.dst.dev), IPSTATS_MIB_INMCASTPKTS);
-	else if (rt->rt_type == RTN_BROADCAST)
-		IP_INC_STATS_BH(dev_net(rt->u.dst.dev), IPSTATS_MIB_INBCASTPKTS);
+	rt = skb_rtable(skb);
+	if (rt->rt_type == RTN_MULTICAST) {
+		IP_UPD_PO_STATS_BH(dev_net(rt->u.dst.dev), IPSTATS_MIB_INMCAST,
+				skb->len);
+	} else if (rt->rt_type == RTN_BROADCAST)
+		IP_UPD_PO_STATS_BH(dev_net(rt->u.dst.dev), IPSTATS_MIB_INBCAST,
+				skb->len);
 
 	return dst_input(skb);
 
@@ -384,7 +386,8 @@ int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
 	if (skb->pkt_type == PACKET_OTHERHOST)
 		goto drop;
 
-	IP_INC_STATS_BH(dev_net(dev), IPSTATS_MIB_INRECEIVES);
+
+	IP_UPD_PO_STATS_BH(dev_net(dev), IPSTATS_MIB_IN, skb->len);
 
 	if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL) {
 		IP_INC_STATS_BH(dev_net(dev), IPSTATS_MIB_INDISCARDS);
diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c
index 2c88da6e7862..94bf105ef3c9 100644
--- a/net/ipv4/ip_options.c
+++ b/net/ipv4/ip_options.c
@@ -102,7 +102,7 @@ int ip_options_echo(struct ip_options * dopt, struct sk_buff * skb)
 	sptr = skb_network_header(skb);
 	dptr = dopt->__data;
 
-	daddr = skb->rtable->rt_spec_dst;
+	daddr = skb_rtable(skb)->rt_spec_dst;
 
 	if (sopt->rr) {
 		optlen  = sptr[sopt->rr+1];
@@ -143,7 +143,7 @@ int ip_options_echo(struct ip_options * dopt, struct sk_buff * skb)
 						__be32 addr;
 
 						memcpy(&addr, sptr+soffset-1, 4);
-						if (inet_addr_type(dev_net(skb->dst->dev), addr) != RTN_LOCAL) {
+						if (inet_addr_type(dev_net(skb_dst(skb)->dev), addr) != RTN_LOCAL) {
 							dopt->ts_needtime = 1;
 							soffset += 8;
 						}
@@ -257,7 +257,7 @@ int ip_options_compile(struct net *net,
 	struct rtable *rt = NULL;
 
 	if (skb != NULL) {
-		rt = skb->rtable;
+		rt = skb_rtable(skb);
 		optptr = (unsigned char *)&(ip_hdr(skb)[1]);
 	} else
 		optptr = opt->__data;
@@ -550,7 +550,7 @@ void ip_forward_options(struct sk_buff *skb)
 {
 	struct   ip_options * opt	= &(IPCB(skb)->opt);
 	unsigned char * optptr;
-	struct rtable *rt = skb->rtable;
+	struct rtable *rt = skb_rtable(skb);
 	unsigned char *raw = skb_network_header(skb);
 
 	if (opt->rr_needaddr) {
@@ -598,7 +598,7 @@ int ip_options_rcv_srr(struct sk_buff *skb)
 	__be32 nexthop;
 	struct iphdr *iph = ip_hdr(skb);
 	unsigned char *optptr = skb_network_header(skb) + opt->srr;
-	struct rtable *rt = skb->rtable;
+	struct rtable *rt = skb_rtable(skb);
 	struct rtable *rt2;
 	int err;
 
@@ -623,13 +623,13 @@ int ip_options_rcv_srr(struct sk_buff *skb)
 		}
 		memcpy(&nexthop, &optptr[srrptr-1], 4);
 
-		rt = skb->rtable;
-		skb->rtable = NULL;
+		rt = skb_rtable(skb);
+		skb_dst_set(skb, NULL);
 		err = ip_route_input(skb, nexthop, iph->saddr, iph->tos, skb->dev);
-		rt2 = skb->rtable;
+		rt2 = skb_rtable(skb);
 		if (err || (rt2->rt_type != RTN_UNICAST && rt2->rt_type != RTN_LOCAL)) {
 			ip_rt_put(rt2);
-			skb->rtable = rt;
+			skb_dst_set(skb, &rt->u.dst);
 			return -EINVAL;
 		}
 		ip_rt_put(rt);
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 3e7e910c7c0f..247026282669 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -95,7 +95,7 @@ int __ip_local_out(struct sk_buff *skb)
 
 	iph->tot_len = htons(skb->len);
 	ip_send_check(iph);
-	return nf_hook(PF_INET, NF_INET_LOCAL_OUT, skb, NULL, skb->dst->dev,
+	return nf_hook(PF_INET, NF_INET_LOCAL_OUT, skb, NULL, skb_dst(skb)->dev,
 		       dst_output);
 }
 
@@ -118,7 +118,7 @@ static int ip_dev_loopback_xmit(struct sk_buff *newskb)
 	__skb_pull(newskb, skb_network_offset(newskb));
 	newskb->pkt_type = PACKET_LOOPBACK;
 	newskb->ip_summed = CHECKSUM_UNNECESSARY;
-	WARN_ON(!newskb->dst);
+	WARN_ON(!skb_dst(newskb));
 	netif_rx(newskb);
 	return 0;
 }
@@ -140,7 +140,7 @@ int ip_build_and_send_pkt(struct sk_buff *skb, struct sock *sk,
 			  __be32 saddr, __be32 daddr, struct ip_options *opt)
 {
 	struct inet_sock *inet = inet_sk(sk);
-	struct rtable *rt = skb->rtable;
+	struct rtable *rt = skb_rtable(skb);
 	struct iphdr *iph;
 
 	/* Build the IP header. */
@@ -176,15 +176,15 @@ EXPORT_SYMBOL_GPL(ip_build_and_send_pkt);
 
 static inline int ip_finish_output2(struct sk_buff *skb)
 {
-	struct dst_entry *dst = skb->dst;
+	struct dst_entry *dst = skb_dst(skb);
 	struct rtable *rt = (struct rtable *)dst;
 	struct net_device *dev = dst->dev;
 	unsigned int hh_len = LL_RESERVED_SPACE(dev);
 
-	if (rt->rt_type == RTN_MULTICAST)
-		IP_INC_STATS(dev_net(dev), IPSTATS_MIB_OUTMCASTPKTS);
-	else if (rt->rt_type == RTN_BROADCAST)
-		IP_INC_STATS(dev_net(dev), IPSTATS_MIB_OUTBCASTPKTS);
+	if (rt->rt_type == RTN_MULTICAST) {
+		IP_UPD_PO_STATS(dev_net(dev), IPSTATS_MIB_OUTMCAST, skb->len);
+	} else if (rt->rt_type == RTN_BROADCAST)
+		IP_UPD_PO_STATS(dev_net(dev), IPSTATS_MIB_OUTBCAST, skb->len);
 
 	/* Be paranoid, rather than too clever. */
 	if (unlikely(skb_headroom(skb) < hh_len && dev->header_ops)) {
@@ -217,14 +217,14 @@ static inline int ip_skb_dst_mtu(struct sk_buff *skb)
 	struct inet_sock *inet = skb->sk ? inet_sk(skb->sk) : NULL;
 
 	return (inet && inet->pmtudisc == IP_PMTUDISC_PROBE) ?
-	       skb->dst->dev->mtu : dst_mtu(skb->dst);
+	       skb_dst(skb)->dev->mtu : dst_mtu(skb_dst(skb));
 }
 
 static int ip_finish_output(struct sk_buff *skb)
 {
 #if defined(CONFIG_NETFILTER) && defined(CONFIG_XFRM)
 	/* Policy lookup after SNAT yielded a new policy */
-	if (skb->dst->xfrm != NULL) {
+	if (skb_dst(skb)->xfrm != NULL) {
 		IPCB(skb)->flags |= IPSKB_REROUTED;
 		return dst_output(skb);
 	}
@@ -238,13 +238,13 @@ static int ip_finish_output(struct sk_buff *skb)
 int ip_mc_output(struct sk_buff *skb)
 {
 	struct sock *sk = skb->sk;
-	struct rtable *rt = skb->rtable;
+	struct rtable *rt = skb_rtable(skb);
 	struct net_device *dev = rt->u.dst.dev;
 
 	/*
 	 *	If the indicated interface is up and running, send the packet.
 	 */
-	IP_INC_STATS(dev_net(dev), IPSTATS_MIB_OUTREQUESTS);
+	IP_UPD_PO_STATS(dev_net(dev), IPSTATS_MIB_OUT, skb->len);
 
 	skb->dev = dev;
 	skb->protocol = htons(ETH_P_IP);
@@ -296,9 +296,9 @@ int ip_mc_output(struct sk_buff *skb)
 
 int ip_output(struct sk_buff *skb)
 {
-	struct net_device *dev = skb->dst->dev;
+	struct net_device *dev = skb_dst(skb)->dev;
 
-	IP_INC_STATS(dev_net(dev), IPSTATS_MIB_OUTREQUESTS);
+	IP_UPD_PO_STATS(dev_net(dev), IPSTATS_MIB_OUT, skb->len);
 
 	skb->dev = dev;
 	skb->protocol = htons(ETH_P_IP);
@@ -319,7 +319,7 @@ int ip_queue_xmit(struct sk_buff *skb, int ipfragok)
 	/* Skip all of this if the packet is already routed,
 	 * f.e. by something like SCTP.
 	 */
-	rt = skb->rtable;
+	rt = skb_rtable(skb);
 	if (rt != NULL)
 		goto packet_routed;
 
@@ -355,7 +355,7 @@ int ip_queue_xmit(struct sk_buff *skb, int ipfragok)
 		}
 		sk_setup_caps(sk, &rt->u.dst);
 	}
-	skb->dst = dst_clone(&rt->u.dst);
+	skb_dst_set(skb, dst_clone(&rt->u.dst));
 
 packet_routed:
 	if (opt && opt->is_strictroute && rt->rt_dst != rt->rt_gateway)
@@ -401,8 +401,8 @@ static void ip_copy_metadata(struct sk_buff *to, struct sk_buff *from)
 	to->pkt_type = from->pkt_type;
 	to->priority = from->priority;
 	to->protocol = from->protocol;
-	dst_release(to->dst);
-	to->dst = dst_clone(from->dst);
+	skb_dst_drop(to);
+	skb_dst_set(to, dst_clone(skb_dst(from)));
 	to->dev = from->dev;
 	to->mark = from->mark;
 
@@ -440,7 +440,7 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 	unsigned int mtu, hlen, left, len, ll_rs, pad;
 	int offset;
 	__be16 not_last_frag;
-	struct rtable *rt = skb->rtable;
+	struct rtable *rt = skb_rtable(skb);
 	int err = 0;
 
 	dev = rt->u.dst.dev;
@@ -474,7 +474,7 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 	 * LATER: this step can be merged to real generation of fragments,
 	 * we can switch to copy when see the first bad fragment.
 	 */
-	if (skb_shinfo(skb)->frag_list) {
+	if (skb_has_frags(skb)) {
 		struct sk_buff *frag;
 		int first_len = skb_pagelen(skb);
 		int truesizes = 0;
@@ -485,7 +485,7 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 		    skb_cloned(skb))
 			goto slow_path;
 
-		for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next) {
+		skb_walk_frags(skb, frag) {
 			/* Correct geometry. */
 			if (frag->len > mtu ||
 			    ((frag->len & 7) && frag->next) ||
@@ -498,7 +498,6 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 
 			BUG_ON(frag->sk);
 			if (skb->sk) {
-				sock_hold(skb->sk);
 				frag->sk = skb->sk;
 				frag->destructor = sock_wfree;
 				truesizes += frag->truesize;
@@ -510,7 +509,7 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 		err = 0;
 		offset = 0;
 		frag = skb_shinfo(skb)->frag_list;
-		skb_shinfo(skb)->frag_list = NULL;
+		skb_frag_list_init(skb);
 		skb->data_len = first_len - skb_headlen(skb);
 		skb->truesize -= truesizes;
 		skb->len = first_len;
@@ -1294,7 +1293,7 @@ int ip_push_pending_frames(struct sock *sk)
 	 * on dst refcount
 	 */
 	inet->cork.dst = NULL;
-	skb->dst = &rt->u.dst;
+	skb_dst_set(skb, &rt->u.dst);
 
 	if (iph->protocol == IPPROTO_ICMP)
 		icmp_out_count(net, ((struct icmphdr *)
@@ -1362,7 +1361,7 @@ void ip_send_reply(struct sock *sk, struct sk_buff *skb, struct ip_reply_arg *ar
 	} replyopts;
 	struct ipcm_cookie ipc;
 	__be32 daddr;
-	struct rtable *rt = skb->rtable;
+	struct rtable *rt = skb_rtable(skb);
 
 	if (ip_options_echo(&replyopts.opt, skb))
 		return;
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 43c05854d752..fc7993e9061f 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -57,7 +57,7 @@
 static void ip_cmsg_recv_pktinfo(struct msghdr *msg, struct sk_buff *skb)
 {
 	struct in_pktinfo info;
-	struct rtable *rt = skb->rtable;
+	struct rtable *rt = skb_rtable(skb);
 
 	info.ipi_addr.s_addr = ip_hdr(skb)->daddr;
 	if (rt) {
@@ -157,38 +157,39 @@ void ip_cmsg_recv(struct msghdr *msg, struct sk_buff *skb)
 	/* Ordered by supposed usage frequency */
 	if (flags & 1)
 		ip_cmsg_recv_pktinfo(msg, skb);
-	if ((flags>>=1) == 0)
+	if ((flags >>= 1) == 0)
 		return;
 
 	if (flags & 1)
 		ip_cmsg_recv_ttl(msg, skb);
-	if ((flags>>=1) == 0)
+	if ((flags >>= 1) == 0)
 		return;
 
 	if (flags & 1)
 		ip_cmsg_recv_tos(msg, skb);
-	if ((flags>>=1) == 0)
+	if ((flags >>= 1) == 0)
 		return;
 
 	if (flags & 1)
 		ip_cmsg_recv_opts(msg, skb);
-	if ((flags>>=1) == 0)
+	if ((flags >>= 1) == 0)
 		return;
 
 	if (flags & 1)
 		ip_cmsg_recv_retopts(msg, skb);
-	if ((flags>>=1) == 0)
+	if ((flags >>= 1) == 0)
 		return;
 
 	if (flags & 1)
 		ip_cmsg_recv_security(msg, skb);
 
-	if ((flags>>=1) == 0)
+	if ((flags >>= 1) == 0)
 		return;
 	if (flags & 1)
 		ip_cmsg_recv_dstaddr(msg, skb);
 
 }
+EXPORT_SYMBOL(ip_cmsg_recv);
 
 int ip_cmsg_send(struct net *net, struct msghdr *msg, struct ipcm_cookie *ipc)
 {
@@ -203,7 +204,8 @@ int ip_cmsg_send(struct net *net, struct msghdr *msg, struct ipcm_cookie *ipc)
 		switch (cmsg->cmsg_type) {
 		case IP_RETOPTS:
 			err = cmsg->cmsg_len - CMSG_ALIGN(sizeof(struct cmsghdr));
-			err = ip_options_get(net, &ipc->opt, CMSG_DATA(cmsg), err < 40 ? err : 40);
+			err = ip_options_get(net, &ipc->opt, CMSG_DATA(cmsg),
+					     err < 40 ? err : 40);
 			if (err)
 				return err;
 			break;
@@ -238,7 +240,8 @@ int ip_cmsg_send(struct net *net, struct msghdr *msg, struct ipcm_cookie *ipc)
 struct ip_ra_chain *ip_ra_chain;
 DEFINE_RWLOCK(ip_ra_lock);
 
-int ip_ra_control(struct sock *sk, unsigned char on, void (*destructor)(struct sock *))
+int ip_ra_control(struct sock *sk, unsigned char on,
+		  void (*destructor)(struct sock *))
 {
 	struct ip_ra_chain *ra, *new_ra, **rap;
 
@@ -248,7 +251,7 @@ int ip_ra_control(struct sock *sk, unsigned char on, void (*destructor)(struct s
 	new_ra = on ? kmalloc(sizeof(*new_ra), GFP_KERNEL) : NULL;
 
 	write_lock_bh(&ip_ra_lock);
-	for (rap = &ip_ra_chain; (ra=*rap) != NULL; rap = &ra->next) {
+	for (rap = &ip_ra_chain; (ra = *rap) != NULL; rap = &ra->next) {
 		if (ra->sk == sk) {
 			if (on) {
 				write_unlock_bh(&ip_ra_lock);
@@ -416,7 +419,8 @@ int ip_recv_error(struct sock *sk, struct msghdr *msg, int len)
 	/* Reset and regenerate socket error */
 	spin_lock_bh(&sk->sk_error_queue.lock);
 	sk->sk_err = 0;
-	if ((skb2 = skb_peek(&sk->sk_error_queue)) != NULL) {
+	skb2 = skb_peek(&sk->sk_error_queue);
+	if (skb2 != NULL) {
 		sk->sk_err = SKB_EXT_ERR(skb2)->ee.ee_errno;
 		spin_unlock_bh(&sk->sk_error_queue.lock);
 		sk->sk_error_report(sk);
@@ -431,8 +435,8 @@ out:
 
 
 /*
- *	Socket option code for IP. This is the end of the line after any TCP,UDP etc options on
- *	an IP socket.
+ *	Socket option code for IP. This is the end of the line after any
+ *	TCP,UDP etc options on an IP socket.
  */
 
 static int do_ip_setsockopt(struct sock *sk, int level,
@@ -449,6 +453,7 @@ static int do_ip_setsockopt(struct sock *sk, int level,
 			     (1<<IP_ROUTER_ALERT) | (1<<IP_FREEBIND) |
 			     (1<<IP_PASSSEC) | (1<<IP_TRANSPARENT))) ||
 	    optname == IP_MULTICAST_TTL ||
+	    optname == IP_MULTICAST_ALL ||
 	    optname == IP_MULTICAST_LOOP ||
 	    optname == IP_RECVORIGDSTADDR) {
 		if (optlen >= sizeof(int)) {
@@ -474,7 +479,7 @@ static int do_ip_setsockopt(struct sock *sk, int level,
 	switch (optname) {
 	case IP_OPTIONS:
 	{
-		struct ip_options * opt = NULL;
+		struct ip_options *opt = NULL;
 		if (optlen > 40 || optlen < 0)
 			goto e_inval;
 		err = ip_options_get_from_user(sock_net(sk), &opt,
@@ -556,9 +561,9 @@ static int do_ip_setsockopt(struct sock *sk, int level,
 		}
 		break;
 	case IP_TTL:
-		if (optlen<1)
+		if (optlen < 1)
 			goto e_inval;
-		if (val != -1 && (val < 1 || val>255))
+		if (val != -1 && (val < 0 || val > 255))
 			goto e_inval;
 		inet->uc_ttl = val;
 		break;
@@ -570,7 +575,7 @@ static int do_ip_setsockopt(struct sock *sk, int level,
 		inet->hdrincl = val ? 1 : 0;
 		break;
 	case IP_MTU_DISCOVER:
-		if (val<0 || val>3)
+		if (val < 0 || val > 3)
 			goto e_inval;
 		inet->pmtudisc = val;
 		break;
@@ -582,7 +587,7 @@ static int do_ip_setsockopt(struct sock *sk, int level,
 	case IP_MULTICAST_TTL:
 		if (sk->sk_type == SOCK_STREAM)
 			goto e_inval;
-		if (optlen<1)
+		if (optlen < 1)
 			goto e_inval;
 		if (val == -1)
 			val = 1;
@@ -591,7 +596,7 @@ static int do_ip_setsockopt(struct sock *sk, int level,
 		inet->mc_ttl = val;
 		break;
 	case IP_MULTICAST_LOOP:
-		if (optlen<1)
+		if (optlen < 1)
 			goto e_inval;
 		inet->mc_loop = !!val;
 		break;
@@ -613,7 +618,8 @@ static int do_ip_setsockopt(struct sock *sk, int level,
 		} else {
 			memset(&mreq, 0, sizeof(mreq));
 			if (optlen >= sizeof(struct in_addr) &&
-			    copy_from_user(&mreq.imr_address, optval, sizeof(struct in_addr)))
+			    copy_from_user(&mreq.imr_address, optval,
+					   sizeof(struct in_addr)))
 				break;
 		}
 
@@ -677,7 +683,6 @@ static int do_ip_setsockopt(struct sock *sk, int level,
 	}
 	case IP_MSFILTER:
 	{
-		extern int sysctl_igmp_max_msf;
 		struct ip_msfilter *msf;
 
 		if (optlen < IP_MSFILTER_SIZE(0))
@@ -831,7 +836,6 @@ static int do_ip_setsockopt(struct sock *sk, int level,
 	}
 	case MCAST_MSFILTER:
 	{
-		extern int sysctl_igmp_max_msf;
 		struct sockaddr_in *psin;
 		struct ip_msfilter *msf = NULL;
 		struct group_filter *gsf = NULL;
@@ -849,9 +853,9 @@ static int do_ip_setsockopt(struct sock *sk, int level,
 			break;
 		}
 		err = -EFAULT;
-		if (copy_from_user(gsf, optval, optlen)) {
+		if (copy_from_user(gsf, optval, optlen))
 			goto mc_msf_out;
-		}
+
 		/* numsrc >= (4G-140)/128 overflow in 32 bits */
 		if (gsf->gf_numsrc >= 0x1ffffff ||
 		    gsf->gf_numsrc > sysctl_igmp_max_msf) {
@@ -879,7 +883,7 @@ static int do_ip_setsockopt(struct sock *sk, int level,
 		msf->imsf_fmode = gsf->gf_fmode;
 		msf->imsf_numsrc = gsf->gf_numsrc;
 		err = -EADDRNOTAVAIL;
-		for (i=0; i<gsf->gf_numsrc; ++i) {
+		for (i = 0; i < gsf->gf_numsrc; ++i) {
 			psin = (struct sockaddr_in *)&gsf->gf_slist[i];
 
 			if (psin->sin_family != AF_INET)
@@ -890,17 +894,24 @@ static int do_ip_setsockopt(struct sock *sk, int level,
 		gsf = NULL;
 
 		err = ip_mc_msfilter(sk, msf, ifindex);
-	mc_msf_out:
+mc_msf_out:
 		kfree(msf);
 		kfree(gsf);
 		break;
 	}
+	case IP_MULTICAST_ALL:
+		if (optlen < 1)
+			goto e_inval;
+		if (val != 0 && val != 1)
+			goto e_inval;
+		inet->mc_all = val;
+		break;
 	case IP_ROUTER_ALERT:
 		err = ip_ra_control(sk, val ? 1 : 0, NULL);
 		break;
 
 	case IP_FREEBIND:
-		if (optlen<1)
+		if (optlen < 1)
 			goto e_inval;
 		inet->freebind = !!val;
 		break;
@@ -957,6 +968,7 @@ int ip_setsockopt(struct sock *sk, int level,
 #endif
 	return err;
 }
+EXPORT_SYMBOL(ip_setsockopt);
 
 #ifdef CONFIG_COMPAT
 int compat_ip_setsockopt(struct sock *sk, int level, int optname,
@@ -986,13 +998,12 @@ int compat_ip_setsockopt(struct sock *sk, int level, int optname,
 #endif
 	return err;
 }
-
 EXPORT_SYMBOL(compat_ip_setsockopt);
 #endif
 
 /*
- *	Get the options. Note for future reference. The GET of IP options gets the
- *	_received_ ones. The set sets the _sent_ ones.
+ *	Get the options. Note for future reference. The GET of IP options gets
+ *	the _received_ ones. The set sets the _sent_ ones.
  */
 
 static int do_ip_getsockopt(struct sock *sk, int level, int optname,
@@ -1143,10 +1154,14 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
 			return -EFAULT;
 		}
 		err = ip_mc_gsfget(sk, &gsf,
-				   (struct group_filter __user *)optval, optlen);
+				   (struct group_filter __user *)optval,
+				   optlen);
 		release_sock(sk);
 		return err;
 	}
+	case IP_MULTICAST_ALL:
+		val = inet->mc_all;
+		break;
 	case IP_PKTOPTIONS:
 	{
 		struct msghdr msg;
@@ -1187,7 +1202,7 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
 	}
 	release_sock(sk);
 
-	if (len < sizeof(int) && len > 0 && val>=0 && val<=255) {
+	if (len < sizeof(int) && len > 0 && val >= 0 && val <= 255) {
 		unsigned char ucval = (unsigned char)val;
 		len = 1;
 		if (put_user(len, optlen))
@@ -1230,6 +1245,7 @@ int ip_getsockopt(struct sock *sk, int level,
 #endif
 	return err;
 }
+EXPORT_SYMBOL(ip_getsockopt);
 
 #ifdef CONFIG_COMPAT
 int compat_ip_getsockopt(struct sock *sk, int level, int optname,
@@ -1262,11 +1278,5 @@ int compat_ip_getsockopt(struct sock *sk, int level, int optname,
 #endif
 	return err;
 }
-
 EXPORT_SYMBOL(compat_ip_getsockopt);
 #endif
-
-EXPORT_SYMBOL(ip_cmsg_recv);
-
-EXPORT_SYMBOL(ip_getsockopt);
-EXPORT_SYMBOL(ip_setsockopt);
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 88bf051d0cbb..f8d04c256454 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -160,6 +160,9 @@ static char user_dev_name[IFNAMSIZ] __initdata = { 0, };
 /* Protocols supported by available interfaces */
 static int ic_proto_have_if __initdata = 0;
 
+/* MTU for boot device */
+static int ic_dev_mtu __initdata = 0;
+
 #ifdef IPCONFIG_DYNAMIC
 static DEFINE_SPINLOCK(ic_recv_lock);
 static volatile int ic_got_reply __initdata = 0;    /* Proto(s) that replied */
@@ -286,7 +289,7 @@ set_sockaddr(struct sockaddr_in *sin, __be32 addr, __be16 port)
 	sin->sin_port = port;
 }
 
-static int __init ic_dev_ioctl(unsigned int cmd, struct ifreq *arg)
+static int __init ic_devinet_ioctl(unsigned int cmd, struct ifreq *arg)
 {
 	int res;
 
@@ -297,6 +300,17 @@ static int __init ic_dev_ioctl(unsigned int cmd, struct ifreq *arg)
 	return res;
 }
 
+static int __init ic_dev_ioctl(unsigned int cmd, struct ifreq *arg)
+{
+	int res;
+
+	mm_segment_t oldfs = get_fs();
+	set_fs(get_ds());
+	res = dev_ioctl(&init_net, cmd, (struct ifreq __user *) arg);
+	set_fs(oldfs);
+	return res;
+}
+
 static int __init ic_route_ioctl(unsigned int cmd, struct rtentry *arg)
 {
 	int res;
@@ -321,20 +335,31 @@ static int __init ic_setup_if(void)
 	memset(&ir, 0, sizeof(ir));
 	strcpy(ir.ifr_ifrn.ifrn_name, ic_dev->name);
 	set_sockaddr(sin, ic_myaddr, 0);
-	if ((err = ic_dev_ioctl(SIOCSIFADDR, &ir)) < 0) {
+	if ((err = ic_devinet_ioctl(SIOCSIFADDR, &ir)) < 0) {
 		printk(KERN_ERR "IP-Config: Unable to set interface address (%d).\n", err);
 		return -1;
 	}
 	set_sockaddr(sin, ic_netmask, 0);
-	if ((err = ic_dev_ioctl(SIOCSIFNETMASK, &ir)) < 0) {
+	if ((err = ic_devinet_ioctl(SIOCSIFNETMASK, &ir)) < 0) {
 		printk(KERN_ERR "IP-Config: Unable to set interface netmask (%d).\n", err);
 		return -1;
 	}
 	set_sockaddr(sin, ic_myaddr | ~ic_netmask, 0);
-	if ((err = ic_dev_ioctl(SIOCSIFBRDADDR, &ir)) < 0) {
+	if ((err = ic_devinet_ioctl(SIOCSIFBRDADDR, &ir)) < 0) {
 		printk(KERN_ERR "IP-Config: Unable to set interface broadcast address (%d).\n", err);
 		return -1;
 	}
+	/* Handle the case where we need non-standard MTU on the boot link (a network
+	 * using jumbo frames, for instance).  If we can't set the mtu, don't error
+	 * out, we'll try to muddle along.
+	 */
+	if (ic_dev_mtu != 0) {
+		strcpy(ir.ifr_name, ic_dev->name);
+		ir.ifr_mtu = ic_dev_mtu;
+		if ((err = ic_dev_ioctl(SIOCSIFMTU, &ir)) < 0)
+			printk(KERN_ERR "IP-Config: Unable to set interface mtu to %d (%d).\n",
+			                 ic_dev_mtu, err);
+	}
 	return 0;
 }
 
@@ -623,6 +648,7 @@ ic_dhcp_init_options(u8 *options)
 			12,	/* Host name */
 			15,	/* Domain name */
 			17,	/* Boot path */
+			26,	/* MTU */
 			40,	/* NIS domain name */
 		};
 
@@ -798,6 +824,7 @@ static void __init ic_do_bootp_ext(u8 *ext)
 {
        u8 servers;
        int i;
+	u16 mtu;
 
 #ifdef IPCONFIG_DEBUG
 	u8 *c;
@@ -837,6 +864,10 @@ static void __init ic_do_bootp_ext(u8 *ext)
 			if (!root_server_path[0])
 				ic_bootp_string(root_server_path, ext+1, *ext, sizeof(root_server_path));
 			break;
+		case 26:	/* Interface MTU */
+			memcpy(&mtu, ext+1, sizeof(mtu));
+			ic_dev_mtu = ntohs(mtu);
+			break;
 		case 40:	/* NIS Domain name (_not_ DNS) */
 			ic_bootp_string(utsname()->domainname, ext+1, *ext, __NEW_UTS_LEN);
 			break;
@@ -1403,6 +1434,8 @@ static int __init ip_auto_config(void)
 	printk(",\n     bootserver=%pI4", &ic_servaddr);
 	printk(", rootserver=%pI4", &root_server_addr);
 	printk(", rootpath=%s", root_server_path);
+	if (ic_dev_mtu)
+		printk(", mtu=%d", ic_dev_mtu);
 	printk("\n");
 #endif /* !SILENT */
 
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index 9054139795af..93e2b787da20 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -370,8 +370,7 @@ static int ipip_rcv(struct sk_buff *skb)
 		tunnel->dev->stats.rx_packets++;
 		tunnel->dev->stats.rx_bytes += skb->len;
 		skb->dev = tunnel->dev;
-		dst_release(skb->dst);
-		skb->dst = NULL;
+		skb_dst_drop(skb);
 		nf_reset(skb);
 		ipip_ecn_decapsulate(iph, skb);
 		netif_rx(skb);
@@ -416,7 +415,7 @@ static int ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	if (!dst) {
 		/* NBMA tunnel */
-		if ((rt = skb->rtable) == NULL) {
+		if ((rt = skb_rtable(skb)) == NULL) {
 			stats->tx_fifo_errors++;
 			goto tx_error;
 		}
@@ -447,15 +446,15 @@ static int ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (tiph->frag_off)
 		mtu = dst_mtu(&rt->u.dst) - sizeof(struct iphdr);
 	else
-		mtu = skb->dst ? dst_mtu(skb->dst) : dev->mtu;
+		mtu = skb_dst(skb) ? dst_mtu(skb_dst(skb)) : dev->mtu;
 
 	if (mtu < 68) {
 		stats->collisions++;
 		ip_rt_put(rt);
 		goto tx_error;
 	}
-	if (skb->dst)
-		skb->dst->ops->update_pmtu(skb->dst, mtu);
+	if (skb_dst(skb))
+		skb_dst(skb)->ops->update_pmtu(skb_dst(skb), mtu);
 
 	df |= (old_iph->frag_off&htons(IP_DF));
 
@@ -502,8 +501,8 @@ static int ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 	memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
 	IPCB(skb)->flags &= ~(IPSKB_XFRM_TUNNEL_SIZE | IPSKB_XFRM_TRANSFORMED |
 			      IPSKB_REROUTED);
-	dst_release(skb->dst);
-	skb->dst = &rt->u.dst;
+	skb_dst_drop(skb);
+	skb_dst_set(skb, &rt->u.dst);
 
 	/*
 	 *	Push down and install the IPIP header.
@@ -713,6 +712,7 @@ static void ipip_tunnel_setup(struct net_device *dev)
 	dev->iflink		= 0;
 	dev->addr_len		= 4;
 	dev->features		|= NETIF_F_NETNS_LOCAL;
+	dev->priv_flags		&= ~IFF_XMIT_DST_RELEASE;
 }
 
 static void ipip_tunnel_init(struct net_device *dev)
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 13e9dd3012b3..9a8da5ed92b7 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -226,9 +226,10 @@ static void reg_vif_setup(struct net_device *dev)
 	dev->flags		= IFF_NOARP;
 	dev->netdev_ops		= &reg_vif_netdev_ops,
 	dev->destructor		= free_netdev;
+	dev->features		|= NETIF_F_NETNS_LOCAL;
 }
 
-static struct net_device *ipmr_reg_vif(void)
+static struct net_device *ipmr_reg_vif(struct net *net)
 {
 	struct net_device *dev;
 	struct in_device *in_dev;
@@ -238,6 +239,8 @@ static struct net_device *ipmr_reg_vif(void)
 	if (dev == NULL)
 		return NULL;
 
+	dev_net_set(dev, net);
+
 	if (register_netdevice(dev)) {
 		free_netdev(dev);
 		return NULL;
@@ -448,7 +451,7 @@ static int vif_add(struct net *net, struct vifctl *vifc, int mrtsock)
 		 */
 		if (net->ipv4.mroute_reg_vif_num >= 0)
 			return -EADDRINUSE;
-		dev = ipmr_reg_vif();
+		dev = ipmr_reg_vif(net);
 		if (!dev)
 			return -ENOBUFS;
 		err = dev_set_allmulti(dev, 1);
@@ -651,7 +654,7 @@ static int ipmr_cache_report(struct net *net,
 	ip_hdr(skb)->protocol = 0;			/* Flag to the kernel this is a route add */
 	msg = (struct igmpmsg *)skb_network_header(skb);
 	msg->im_vif = vifi;
-	skb->dst = dst_clone(pkt->dst);
+	skb_dst_set(skb, dst_clone(skb_dst(pkt)));
 
 	/*
 	 *	Add our header
@@ -1031,16 +1034,6 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, int
 		if (v != net->ipv4.mroute_do_pim) {
 			net->ipv4.mroute_do_pim = v;
 			net->ipv4.mroute_do_assert = v;
-#ifdef CONFIG_IP_PIMSM_V2
-			if (net->ipv4.mroute_do_pim)
-				ret = inet_add_protocol(&pim_protocol,
-							IPPROTO_PIM);
-			else
-				ret = inet_del_protocol(&pim_protocol,
-							IPPROTO_PIM);
-			if (ret < 0)
-				ret = -EAGAIN;
-#endif
 		}
 		rtnl_unlock();
 		return ret;
@@ -1201,7 +1194,7 @@ static void ip_encap(struct sk_buff *skb, __be32 saddr, __be32 daddr)
 	iph->protocol	=	IPPROTO_IPIP;
 	iph->ihl	=	5;
 	iph->tot_len	=	htons(skb->len);
-	ip_select_ident(iph, skb->dst, NULL);
+	ip_select_ident(iph, skb_dst(skb), NULL);
 	ip_send_check(iph);
 
 	memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
@@ -1212,7 +1205,7 @@ static inline int ipmr_forward_finish(struct sk_buff *skb)
 {
 	struct ip_options * opt	= &(IPCB(skb)->opt);
 
-	IP_INC_STATS_BH(dev_net(skb->dst->dev), IPSTATS_MIB_OUTFORWDATAGRAMS);
+	IP_INC_STATS_BH(dev_net(skb_dst(skb)->dev), IPSTATS_MIB_OUTFORWDATAGRAMS);
 
 	if (unlikely(opt->optlen))
 		ip_forward_options(skb);
@@ -1290,8 +1283,8 @@ static void ipmr_queue_xmit(struct sk_buff *skb, struct mfc_cache *c, int vifi)
 	vif->pkt_out++;
 	vif->bytes_out += skb->len;
 
-	dst_release(skb->dst);
-	skb->dst = &rt->u.dst;
+	skb_dst_drop(skb);
+	skb_dst_set(skb, &rt->u.dst);
 	ip_decrease_ttl(ip_hdr(skb));
 
 	/* FIXME: forward and output firewalls used to be called here.
@@ -1354,7 +1347,7 @@ static int ip_mr_forward(struct sk_buff *skb, struct mfc_cache *cache, int local
 	if (net->ipv4.vif_table[vif].dev != skb->dev) {
 		int true_vifi;
 
-		if (skb->rtable->fl.iif == 0) {
+		if (skb_rtable(skb)->fl.iif == 0) {
 			/* It is our own packet, looped back.
 			   Very complicated situation...
 
@@ -1430,7 +1423,7 @@ int ip_mr_input(struct sk_buff *skb)
 {
 	struct mfc_cache *cache;
 	struct net *net = dev_net(skb->dev);
-	int local = skb->rtable->rt_flags&RTCF_LOCAL;
+	int local = skb_rtable(skb)->rt_flags & RTCF_LOCAL;
 
 	/* Packet is looped back after forward, it should not be
 	   forwarded second time, but still can be delivered locally.
@@ -1543,8 +1536,7 @@ static int __pim_rcv(struct sk_buff *skb, unsigned int pimlen)
 	skb->protocol = htons(ETH_P_IP);
 	skb->ip_summed = 0;
 	skb->pkt_type = PACKET_HOST;
-	dst_release(skb->dst);
-	skb->dst = NULL;
+	skb_dst_drop(skb);
 	reg_dev->stats.rx_bytes += skb->len;
 	reg_dev->stats.rx_packets++;
 	nf_reset(skb);
@@ -1646,7 +1638,7 @@ int ipmr_get_route(struct net *net,
 {
 	int err;
 	struct mfc_cache *cache;
-	struct rtable *rt = skb->rtable;
+	struct rtable *rt = skb_rtable(skb);
 
 	read_lock(&mrt_lock);
 	cache = ipmr_cache_find(net, rt->rt_src, rt->rt_dst);
@@ -1955,6 +1947,7 @@ static const struct file_operations ipmr_mfc_fops = {
 #ifdef CONFIG_IP_PIMSM_V2
 static struct net_protocol pim_protocol = {
 	.handler	=	pim_rcv,
+	.netns_ok	=	1,
 };
 #endif
 
@@ -2041,8 +2034,19 @@ int __init ip_mr_init(void)
 	err = register_netdevice_notifier(&ip_mr_notifier);
 	if (err)
 		goto reg_notif_fail;
+#ifdef CONFIG_IP_PIMSM_V2
+	if (inet_add_protocol(&pim_protocol, IPPROTO_PIM) < 0) {
+		printk(KERN_ERR "ip_mr_init: can't add PIM protocol\n");
+		err = -EAGAIN;
+		goto add_proto_fail;
+	}
+#endif
 	return 0;
 
+#ifdef CONFIG_IP_PIMSM_V2
+add_proto_fail:
+	unregister_netdevice_notifier(&ip_mr_notifier);
+#endif
 reg_notif_fail:
 	del_timer(&ipmr_expire_timer);
 	unregister_pernet_subsys(&ipmr_net_ops);
diff --git a/net/ipv4/netfilter.c b/net/ipv4/netfilter.c
index fdf6811c31a2..1725dc0ef688 100644
--- a/net/ipv4/netfilter.c
+++ b/net/ipv4/netfilter.c
@@ -12,7 +12,7 @@
 /* route_me_harder function, used by iptable_nat, iptable_mangle + ip_queue */
 int ip_route_me_harder(struct sk_buff *skb, unsigned addr_type)
 {
-	struct net *net = dev_net(skb->dst->dev);
+	struct net *net = dev_net(skb_dst(skb)->dev);
 	const struct iphdr *iph = ip_hdr(skb);
 	struct rtable *rt;
 	struct flowi fl = {};
@@ -41,8 +41,8 @@ int ip_route_me_harder(struct sk_buff *skb, unsigned addr_type)
 			return -1;
 
 		/* Drop old route. */
-		dst_release(skb->dst);
-		skb->dst = &rt->u.dst;
+		skb_dst_drop(skb);
+		skb_dst_set(skb, &rt->u.dst);
 	} else {
 		/* non-local src, find valid iif to satisfy
 		 * rp-filter when calling ip_route_input. */
@@ -50,7 +50,7 @@ int ip_route_me_harder(struct sk_buff *skb, unsigned addr_type)
 		if (ip_route_output_key(net, &rt, &fl) != 0)
 			return -1;
 
-		odst = skb->dst;
+		odst = skb_dst(skb);
 		if (ip_route_input(skb, iph->daddr, iph->saddr,
 				   RT_TOS(iph->tos), rt->u.dst.dev) != 0) {
 			dst_release(&rt->u.dst);
@@ -60,18 +60,22 @@ int ip_route_me_harder(struct sk_buff *skb, unsigned addr_type)
 		dst_release(odst);
 	}
 
-	if (skb->dst->error)
+	if (skb_dst(skb)->error)
 		return -1;
 
 #ifdef CONFIG_XFRM
 	if (!(IPCB(skb)->flags & IPSKB_XFRM_TRANSFORMED) &&
-	    xfrm_decode_session(skb, &fl, AF_INET) == 0)
-		if (xfrm_lookup(net, &skb->dst, &fl, skb->sk, 0))
+	    xfrm_decode_session(skb, &fl, AF_INET) == 0) {
+		struct dst_entry *dst = skb_dst(skb);
+		skb_dst_set(skb, NULL);
+		if (xfrm_lookup(net, &dst, &fl, skb->sk, 0))
 			return -1;
+		skb_dst_set(skb, dst);
+	}
 #endif
 
 	/* Change in oif may mean change in hh_len. */
-	hh_len = skb->dst->dev->hard_header_len;
+	hh_len = skb_dst(skb)->dev->hard_header_len;
 	if (skb_headroom(skb) < hh_len &&
 	    pskb_expand_head(skb, hh_len - skb_headroom(skb), 0, GFP_ATOMIC))
 		return -1;
@@ -92,7 +96,7 @@ int ip_xfrm_me_harder(struct sk_buff *skb)
 	if (xfrm_decode_session(skb, &fl, AF_INET) < 0)
 		return -1;
 
-	dst = skb->dst;
+	dst = skb_dst(skb);
 	if (dst->xfrm)
 		dst = ((struct xfrm_dst *)dst)->route;
 	dst_hold(dst);
@@ -100,11 +104,11 @@ int ip_xfrm_me_harder(struct sk_buff *skb)
 	if (xfrm_lookup(dev_net(dst->dev), &dst, &fl, skb->sk, 0) < 0)
 		return -1;
 
-	dst_release(skb->dst);
-	skb->dst = dst;
+	skb_dst_drop(skb);
+	skb_dst_set(skb, dst);
 
 	/* Change in oif may mean change in hh_len. */
-	hh_len = skb->dst->dev->hard_header_len;
+	hh_len = skb_dst(skb)->dev->hard_header_len;
 	if (skb_headroom(skb) < hh_len &&
 	    pskb_expand_head(skb, hh_len - skb_headroom(skb), 0, GFP_ATOMIC))
 		return -1;
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index 831fe1879dc0..7505dff4ffdf 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -231,6 +231,12 @@ static inline struct arpt_entry *get_entry(void *base, unsigned int offset)
 	return (struct arpt_entry *)(base + offset);
 }
 
+static inline __pure
+struct arpt_entry *arpt_next_entry(const struct arpt_entry *entry)
+{
+	return (void *)entry + entry->next_offset;
+}
+
 unsigned int arpt_do_table(struct sk_buff *skb,
 			   unsigned int hook,
 			   const struct net_device *in,
@@ -267,67 +273,64 @@ unsigned int arpt_do_table(struct sk_buff *skb,
 
 	arp = arp_hdr(skb);
 	do {
-		if (arp_packet_match(arp, skb->dev, indev, outdev, &e->arp)) {
-			struct arpt_entry_target *t;
-			int hdr_len;
-
-			hdr_len = sizeof(*arp) + (2 * sizeof(struct in_addr)) +
-				(2 * skb->dev->addr_len);
+		struct arpt_entry_target *t;
+		int hdr_len;
 
-			ADD_COUNTER(e->counters, hdr_len, 1);
+		if (!arp_packet_match(arp, skb->dev, indev, outdev, &e->arp)) {
+			e = arpt_next_entry(e);
+			continue;
+		}
 
-			t = arpt_get_target(e);
+		hdr_len = sizeof(*arp) + (2 * sizeof(struct in_addr)) +
+			(2 * skb->dev->addr_len);
+		ADD_COUNTER(e->counters, hdr_len, 1);
 
-			/* Standard target? */
-			if (!t->u.kernel.target->target) {
-				int v;
+		t = arpt_get_target(e);
 
-				v = ((struct arpt_standard_target *)t)->verdict;
-				if (v < 0) {
-					/* Pop from stack? */
-					if (v != ARPT_RETURN) {
-						verdict = (unsigned)(-v) - 1;
-						break;
-					}
-					e = back;
-					back = get_entry(table_base,
-							 back->comefrom);
-					continue;
-				}
-				if (table_base + v
-				    != (void *)e + e->next_offset) {
-					/* Save old back ptr in next entry */
-					struct arpt_entry *next
-						= (void *)e + e->next_offset;
-					next->comefrom =
-						(void *)back - table_base;
-
-					/* set back pointer to next entry */
-					back = next;
-				}
+		/* Standard target? */
+		if (!t->u.kernel.target->target) {
+			int v;
 
-				e = get_entry(table_base, v);
-			} else {
-				/* Targets which reenter must return
-				 * abs. verdicts
-				 */
-				tgpar.target   = t->u.kernel.target;
-				tgpar.targinfo = t->data;
-				verdict = t->u.kernel.target->target(skb,
-								     &tgpar);
-
-				/* Target might have changed stuff. */
-				arp = arp_hdr(skb);
-
-				if (verdict == ARPT_CONTINUE)
-					e = (void *)e + e->next_offset;
-				else
-					/* Verdict */
+			v = ((struct arpt_standard_target *)t)->verdict;
+			if (v < 0) {
+				/* Pop from stack? */
+				if (v != ARPT_RETURN) {
+					verdict = (unsigned)(-v) - 1;
 					break;
+				}
+				e = back;
+				back = get_entry(table_base, back->comefrom);
+				continue;
 			}
-		} else {
-			e = (void *)e + e->next_offset;
+			if (table_base + v
+			    != arpt_next_entry(e)) {
+				/* Save old back ptr in next entry */
+				struct arpt_entry *next = arpt_next_entry(e);
+				next->comefrom = (void *)back - table_base;
+
+				/* set back pointer to next entry */
+				back = next;
+			}
+
+			e = get_entry(table_base, v);
+			continue;
 		}
+
+		/* Targets which reenter must return
+		 * abs. verdicts
+		 */
+		tgpar.target   = t->u.kernel.target;
+		tgpar.targinfo = t->data;
+		verdict = t->u.kernel.target->target(skb, &tgpar);
+
+		/* Target might have changed stuff. */
+		arp = arp_hdr(skb);
+
+		if (verdict == ARPT_CONTINUE)
+			e = arpt_next_entry(e);
+		else
+			/* Verdict */
+			break;
 	} while (!hotdrop);
 	xt_info_rdunlock_bh();
 
diff --git a/net/ipv4/netfilter/ip_queue.c b/net/ipv4/netfilter/ip_queue.c
index 5f22c91c6e15..c156db215987 100644
--- a/net/ipv4/netfilter/ip_queue.c
+++ b/net/ipv4/netfilter/ip_queue.c
@@ -596,7 +596,7 @@ static int __init ip_queue_init(void)
 #ifdef CONFIG_SYSCTL
 	ipq_sysctl_header = register_sysctl_paths(net_ipv4_ctl_path, ipq_table);
 #endif
-	status = nf_register_queue_handler(PF_INET, &nfqh);
+	status = nf_register_queue_handler(NFPROTO_IPV4, &nfqh);
 	if (status < 0) {
 		printk(KERN_ERR "ip_queue: failed to register queue handler\n");
 		goto cleanup_sysctl;
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index 2ec8d7290c40..fdefae6b5dfc 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -238,8 +238,8 @@ static struct nf_loginfo trace_loginfo = {
 /* Mildly perf critical (only if packet tracing is on) */
 static inline int
 get_chainname_rulenum(struct ipt_entry *s, struct ipt_entry *e,
-		      char *hookname, char **chainname,
-		      char **comment, unsigned int *rulenum)
+		      const char *hookname, const char **chainname,
+		      const char **comment, unsigned int *rulenum)
 {
 	struct ipt_standard_target *t = (void *)ipt_get_target(s);
 
@@ -257,8 +257,8 @@ get_chainname_rulenum(struct ipt_entry *s, struct ipt_entry *e,
 		   && unconditional(&s->ip)) {
 			/* Tail of chains: STANDARD target (return/policy) */
 			*comment = *chainname == hookname
-				? (char *)comments[NF_IP_TRACE_COMMENT_POLICY]
-				: (char *)comments[NF_IP_TRACE_COMMENT_RETURN];
+				? comments[NF_IP_TRACE_COMMENT_POLICY]
+				: comments[NF_IP_TRACE_COMMENT_RETURN];
 		}
 		return 1;
 	} else
@@ -277,14 +277,14 @@ static void trace_packet(struct sk_buff *skb,
 {
 	void *table_base;
 	const struct ipt_entry *root;
-	char *hookname, *chainname, *comment;
+	const char *hookname, *chainname, *comment;
 	unsigned int rulenum = 0;
 
-	table_base = (void *)private->entries[smp_processor_id()];
+	table_base = private->entries[smp_processor_id()];
 	root = get_entry(table_base, private->hook_entry[hook]);
 
-	hookname = chainname = (char *)hooknames[hook];
-	comment = (char *)comments[NF_IP_TRACE_COMMENT_RULE];
+	hookname = chainname = hooknames[hook];
+	comment = comments[NF_IP_TRACE_COMMENT_RULE];
 
 	IPT_ENTRY_ITERATE(root,
 			  private->size - private->hook_entry[hook],
@@ -297,6 +297,12 @@ static void trace_packet(struct sk_buff *skb,
 }
 #endif
 
+static inline __pure
+struct ipt_entry *ipt_next_entry(const struct ipt_entry *entry)
+{
+	return (void *)entry + entry->next_offset;
+}
+
 /* Returns one of the generic firewall policies, like NF_ACCEPT. */
 unsigned int
 ipt_do_table(struct sk_buff *skb,
@@ -305,6 +311,8 @@ ipt_do_table(struct sk_buff *skb,
 	     const struct net_device *out,
 	     struct xt_table *table)
 {
+#define tb_comefrom ((struct ipt_entry *)table_base)->comefrom
+
 	static const char nulldevname[IFNAMSIZ] __attribute__((aligned(sizeof(long))));
 	const struct iphdr *ip;
 	u_int16_t datalen;
@@ -335,7 +343,7 @@ ipt_do_table(struct sk_buff *skb,
 	mtpar.in      = tgpar.in  = in;
 	mtpar.out     = tgpar.out = out;
 	mtpar.family  = tgpar.family = NFPROTO_IPV4;
-	tgpar.hooknum = hook;
+	mtpar.hooknum = tgpar.hooknum = hook;
 
 	IP_NF_ASSERT(table->valid_hooks & (1 << hook));
 	xt_info_rdlock_bh();
@@ -348,92 +356,84 @@ ipt_do_table(struct sk_buff *skb,
 	back = get_entry(table_base, private->underflow[hook]);
 
 	do {
+		struct ipt_entry_target *t;
+
 		IP_NF_ASSERT(e);
 		IP_NF_ASSERT(back);
-		if (ip_packet_match(ip, indev, outdev,
-		    &e->ip, mtpar.fragoff)) {
-			struct ipt_entry_target *t;
-
-			if (IPT_MATCH_ITERATE(e, do_match, skb, &mtpar) != 0)
-				goto no_match;
+		if (!ip_packet_match(ip, indev, outdev,
+		    &e->ip, mtpar.fragoff) ||
+		    IPT_MATCH_ITERATE(e, do_match, skb, &mtpar) != 0) {
+			e = ipt_next_entry(e);
+			continue;
+		}
 
-			ADD_COUNTER(e->counters, ntohs(ip->tot_len), 1);
+		ADD_COUNTER(e->counters, ntohs(ip->tot_len), 1);
 
-			t = ipt_get_target(e);
-			IP_NF_ASSERT(t->u.kernel.target);
+		t = ipt_get_target(e);
+		IP_NF_ASSERT(t->u.kernel.target);
 
 #if defined(CONFIG_NETFILTER_XT_TARGET_TRACE) || \
     defined(CONFIG_NETFILTER_XT_TARGET_TRACE_MODULE)
-			/* The packet is traced: log it */
-			if (unlikely(skb->nf_trace))
-				trace_packet(skb, hook, in, out,
-					     table->name, private, e);
+		/* The packet is traced: log it */
+		if (unlikely(skb->nf_trace))
+			trace_packet(skb, hook, in, out,
+				     table->name, private, e);
 #endif
-			/* Standard target? */
-			if (!t->u.kernel.target->target) {
-				int v;
-
-				v = ((struct ipt_standard_target *)t)->verdict;
-				if (v < 0) {
-					/* Pop from stack? */
-					if (v != IPT_RETURN) {
-						verdict = (unsigned)(-v) - 1;
-						break;
-					}
-					e = back;
-					back = get_entry(table_base,
-							 back->comefrom);
-					continue;
-				}
-				if (table_base + v != (void *)e + e->next_offset
-				    && !(e->ip.flags & IPT_F_GOTO)) {
-					/* Save old back ptr in next entry */
-					struct ipt_entry *next
-						= (void *)e + e->next_offset;
-					next->comefrom
-						= (void *)back - table_base;
-					/* set back pointer to next entry */
-					back = next;
+		/* Standard target? */
+		if (!t->u.kernel.target->target) {
+			int v;
+
+			v = ((struct ipt_standard_target *)t)->verdict;
+			if (v < 0) {
+				/* Pop from stack? */
+				if (v != IPT_RETURN) {
+					verdict = (unsigned)(-v) - 1;
+					break;
 				}
+				e = back;
+				back = get_entry(table_base, back->comefrom);
+				continue;
+			}
+			if (table_base + v != ipt_next_entry(e)
+			    && !(e->ip.flags & IPT_F_GOTO)) {
+				/* Save old back ptr in next entry */
+				struct ipt_entry *next = ipt_next_entry(e);
+				next->comefrom = (void *)back - table_base;
+				/* set back pointer to next entry */
+				back = next;
+			}
+
+			e = get_entry(table_base, v);
+			continue;
+		}
+
+		/* Targets which reenter must return
+		   abs. verdicts */
+		tgpar.target   = t->u.kernel.target;
+		tgpar.targinfo = t->data;
+
 
-				e = get_entry(table_base, v);
-			} else {
-				/* Targets which reenter must return
-				   abs. verdicts */
-				tgpar.target   = t->u.kernel.target;
-				tgpar.targinfo = t->data;
 #ifdef CONFIG_NETFILTER_DEBUG
-				((struct ipt_entry *)table_base)->comefrom
-					= 0xeeeeeeec;
+		tb_comefrom = 0xeeeeeeec;
 #endif
-				verdict = t->u.kernel.target->target(skb,
-								     &tgpar);
+		verdict = t->u.kernel.target->target(skb, &tgpar);
 #ifdef CONFIG_NETFILTER_DEBUG
-				if (((struct ipt_entry *)table_base)->comefrom
-				    != 0xeeeeeeec
-				    && verdict == IPT_CONTINUE) {
-					printk("Target %s reentered!\n",
-					       t->u.kernel.target->name);
-					verdict = NF_DROP;
-				}
-				((struct ipt_entry *)table_base)->comefrom
-					= 0x57acc001;
+		if (tb_comefrom != 0xeeeeeeec && verdict == IPT_CONTINUE) {
+			printk("Target %s reentered!\n",
+			       t->u.kernel.target->name);
+			verdict = NF_DROP;
+		}
+		tb_comefrom = 0x57acc001;
 #endif
-				/* Target might have changed stuff. */
-				ip = ip_hdr(skb);
-				datalen = skb->len - ip->ihl * 4;
-
-				if (verdict == IPT_CONTINUE)
-					e = (void *)e + e->next_offset;
-				else
-					/* Verdict */
-					break;
-			}
-		} else {
+		/* Target might have changed stuff. */
+		ip = ip_hdr(skb);
+		datalen = skb->len - ip->ihl * 4;
 
-		no_match:
-			e = (void *)e + e->next_offset;
-		}
+		if (verdict == IPT_CONTINUE)
+			e = ipt_next_entry(e);
+		else
+			/* Verdict */
+			break;
 	} while (!hotdrop);
 	xt_info_rdunlock_bh();
 
@@ -444,6 +444,8 @@ ipt_do_table(struct sk_buff *skb,
 		return NF_DROP;
 	else return verdict;
 #endif
+
+#undef tb_comefrom
 }
 
 /* Figures out from what hook each rule can be called: returns 0 if
@@ -2158,7 +2160,7 @@ static bool icmp_checkentry(const struct xt_mtchk_param *par)
 static struct xt_target ipt_standard_target __read_mostly = {
 	.name		= IPT_STANDARD_TARGET,
 	.targetsize	= sizeof(int),
-	.family		= AF_INET,
+	.family		= NFPROTO_IPV4,
 #ifdef CONFIG_COMPAT
 	.compatsize	= sizeof(compat_int_t),
 	.compat_from_user = compat_standard_from_user,
@@ -2170,7 +2172,7 @@ static struct xt_target ipt_error_target __read_mostly = {
 	.name		= IPT_ERROR_TARGET,
 	.target		= ipt_error,
 	.targetsize	= IPT_FUNCTION_MAXNAMELEN,
-	.family		= AF_INET,
+	.family		= NFPROTO_IPV4,
 };
 
 static struct nf_sockopt_ops ipt_sockopts = {
@@ -2196,17 +2198,17 @@ static struct xt_match icmp_matchstruct __read_mostly = {
 	.matchsize	= sizeof(struct ipt_icmp),
 	.checkentry	= icmp_checkentry,
 	.proto		= IPPROTO_ICMP,
-	.family		= AF_INET,
+	.family		= NFPROTO_IPV4,
 };
 
 static int __net_init ip_tables_net_init(struct net *net)
 {
-	return xt_proto_init(net, AF_INET);
+	return xt_proto_init(net, NFPROTO_IPV4);
 }
 
 static void __net_exit ip_tables_net_exit(struct net *net)
 {
-	xt_proto_fini(net, AF_INET);
+	xt_proto_fini(net, NFPROTO_IPV4);
 }
 
 static struct pernet_operations ip_tables_net_ops = {
diff --git a/net/ipv4/netfilter/ipt_MASQUERADE.c b/net/ipv4/netfilter/ipt_MASQUERADE.c
index f389f60cb105..dada0863946d 100644
--- a/net/ipv4/netfilter/ipt_MASQUERADE.c
+++ b/net/ipv4/netfilter/ipt_MASQUERADE.c
@@ -27,9 +27,6 @@ MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Netfilter Core Team <coreteam@netfilter.org>");
 MODULE_DESCRIPTION("Xtables: automatic-address SNAT");
 
-/* Lock protects masq region inside conntrack */
-static DEFINE_RWLOCK(masq_lock);
-
 /* FIXME: Multiple targets. --RR */
 static bool masquerade_tg_check(const struct xt_tgchk_param *par)
 {
@@ -72,16 +69,14 @@ masquerade_tg(struct sk_buff *skb, const struct xt_target_param *par)
 		return NF_ACCEPT;
 
 	mr = par->targinfo;
-	rt = skb->rtable;
+	rt = skb_rtable(skb);
 	newsrc = inet_select_addr(par->out, rt->rt_gateway, RT_SCOPE_UNIVERSE);
 	if (!newsrc) {
 		printk("MASQUERADE: %s ate my IP address\n", par->out->name);
 		return NF_DROP;
 	}
 
-	write_lock_bh(&masq_lock);
 	nat->masq_index = par->out->ifindex;
-	write_unlock_bh(&masq_lock);
 
 	/* Transfer from original range. */
 	newrange = ((struct nf_nat_range)
@@ -97,16 +92,11 @@ static int
 device_cmp(struct nf_conn *i, void *ifindex)
 {
 	const struct nf_conn_nat *nat = nfct_nat(i);
-	int ret;
 
 	if (!nat)
 		return 0;
 
-	read_lock_bh(&masq_lock);
-	ret = (nat->masq_index == (int)(long)ifindex);
-	read_unlock_bh(&masq_lock);
-
-	return ret;
+	return nat->masq_index == (int)(long)ifindex;
 }
 
 static int masq_device_event(struct notifier_block *this,
diff --git a/net/ipv4/netfilter/ipt_REJECT.c b/net/ipv4/netfilter/ipt_REJECT.c
index 0b4b6e0ff2b9..c93ae44bff2a 100644
--- a/net/ipv4/netfilter/ipt_REJECT.c
+++ b/net/ipv4/netfilter/ipt_REJECT.c
@@ -108,17 +108,16 @@ static void send_reset(struct sk_buff *oldskb, int hook)
 		addr_type = RTN_LOCAL;
 
 	/* ip_route_me_harder expects skb->dst to be set */
-	dst_hold(oldskb->dst);
-	nskb->dst = oldskb->dst;
+	skb_dst_set(nskb, dst_clone(skb_dst(oldskb)));
 
 	if (ip_route_me_harder(nskb, addr_type))
 		goto free_nskb;
 
-	niph->ttl	= dst_metric(nskb->dst, RTAX_HOPLIMIT);
+	niph->ttl	= dst_metric(skb_dst(nskb), RTAX_HOPLIMIT);
 	nskb->ip_summed = CHECKSUM_NONE;
 
 	/* "Never happens" */
-	if (nskb->len > dst_mtu(nskb->dst))
+	if (nskb->len > dst_mtu(skb_dst(nskb)))
 		goto free_nskb;
 
 	nf_ct_attach(nskb, oldskb);
diff --git a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
index 23b2c2ee869a..d71ba7677344 100644
--- a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
+++ b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
@@ -82,18 +82,10 @@ static int icmp_packet(struct nf_conn *ct,
 		       u_int8_t pf,
 		       unsigned int hooknum)
 {
-	/* Try to delete connection immediately after all replies:
-	   won't actually vanish as we still have skb, and del_timer
-	   means this will only run once even if count hits zero twice
-	   (theoretically possible with SMP) */
-	if (CTINFO2DIR(ctinfo) == IP_CT_DIR_REPLY) {
-		if (atomic_dec_and_test(&ct->proto.icmp.count))
-			nf_ct_kill_acct(ct, ctinfo, skb);
-	} else {
-		atomic_inc(&ct->proto.icmp.count);
-		nf_conntrack_event_cache(IPCT_PROTOINFO_VOLATILE, ct);
-		nf_ct_refresh_acct(ct, ctinfo, skb, nf_ct_icmp_timeout);
-	}
+	/* Do not immediately delete the connection after the first
+	   successful reply to avoid excessive conntrackd traffic
+	   and also to handle correctly ICMP echo reply duplicates. */
+	nf_ct_refresh_acct(ct, ctinfo, skb, nf_ct_icmp_timeout);
 
 	return NF_ACCEPT;
 }
@@ -117,7 +109,6 @@ static bool icmp_new(struct nf_conn *ct, const struct sk_buff *skb,
 		nf_ct_dump_tuple_ip(&ct->tuplehash[0].tuple);
 		return false;
 	}
-	atomic_set(&ct->proto.icmp.count, 0);
 	return true;
 }
 
diff --git a/net/ipv4/netfilter/nf_nat_helper.c b/net/ipv4/netfilter/nf_nat_helper.c
index cf7a42bf9820..155c008626c8 100644
--- a/net/ipv4/netfilter/nf_nat_helper.c
+++ b/net/ipv4/netfilter/nf_nat_helper.c
@@ -140,7 +140,7 @@ nf_nat_mangle_tcp_packet(struct sk_buff *skb,
 			 const char *rep_buffer,
 			 unsigned int rep_len)
 {
-	struct rtable *rt = skb->rtable;
+	struct rtable *rt = skb_rtable(skb);
 	struct iphdr *iph;
 	struct tcphdr *tcph;
 	int oldlen, datalen;
@@ -218,7 +218,7 @@ nf_nat_mangle_udp_packet(struct sk_buff *skb,
 			 const char *rep_buffer,
 			 unsigned int rep_len)
 {
-	struct rtable *rt = skb->rtable;
+	struct rtable *rt = skb_rtable(skb);
 	struct iphdr *iph;
 	struct udphdr *udph;
 	int datalen, oldlen;
diff --git a/net/ipv4/netfilter/nf_nat_proto_sctp.c b/net/ipv4/netfilter/nf_nat_proto_sctp.c
index 65e470bc6123..3fc598eeeb1a 100644
--- a/net/ipv4/netfilter/nf_nat_proto_sctp.c
+++ b/net/ipv4/netfilter/nf_nat_proto_sctp.c
@@ -33,6 +33,7 @@ sctp_manip_pkt(struct sk_buff *skb,
 	       enum nf_nat_manip_type maniptype)
 {
 	const struct iphdr *iph = (struct iphdr *)(skb->data + iphdroff);
+	struct sk_buff *frag;
 	sctp_sctphdr_t *hdr;
 	unsigned int hdroff = iphdroff + iph->ihl*4;
 	__be32 oldip, newip;
@@ -57,8 +58,8 @@ sctp_manip_pkt(struct sk_buff *skb,
 	}
 
 	crc32 = sctp_start_cksum((u8 *)hdr, skb_headlen(skb) - hdroff);
-	for (skb = skb_shinfo(skb)->frag_list; skb; skb = skb->next)
-		crc32 = sctp_update_cksum((u8 *)skb->data, skb_headlen(skb),
+	skb_walk_frags(skb, frag)
+		crc32 = sctp_update_cksum((u8 *)frag->data, skb_headlen(frag),
 					  crc32);
 	crc32 = sctp_end_cksum(crc32);
 	hdr->checksum = crc32;
diff --git a/net/ipv4/netfilter/nf_nat_standalone.c b/net/ipv4/netfilter/nf_nat_standalone.c
index b7dd695691a0..5567bd0d0750 100644
--- a/net/ipv4/netfilter/nf_nat_standalone.c
+++ b/net/ipv4/netfilter/nf_nat_standalone.c
@@ -167,10 +167,9 @@ nf_nat_in(unsigned int hooknum,
 
 	ret = nf_nat_fn(hooknum, skb, in, out, okfn);
 	if (ret != NF_DROP && ret != NF_STOLEN &&
-	    daddr != ip_hdr(skb)->daddr) {
-		dst_release(skb->dst);
-		skb->dst = NULL;
-	}
+	    daddr != ip_hdr(skb)->daddr)
+		skb_dst_drop(skb);
+
 	return ret;
 }
 
diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index cf0cdeeb1db0..f25542c48b7d 100644
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -90,14 +90,14 @@ static const struct file_operations sockstat_seq_fops = {
 
 /* snmp items */
 static const struct snmp_mib snmp4_ipstats_list[] = {
-	SNMP_MIB_ITEM("InReceives", IPSTATS_MIB_INRECEIVES),
+	SNMP_MIB_ITEM("InReceives", IPSTATS_MIB_INPKTS),
 	SNMP_MIB_ITEM("InHdrErrors", IPSTATS_MIB_INHDRERRORS),
 	SNMP_MIB_ITEM("InAddrErrors", IPSTATS_MIB_INADDRERRORS),
 	SNMP_MIB_ITEM("ForwDatagrams", IPSTATS_MIB_OUTFORWDATAGRAMS),
 	SNMP_MIB_ITEM("InUnknownProtos", IPSTATS_MIB_INUNKNOWNPROTOS),
 	SNMP_MIB_ITEM("InDiscards", IPSTATS_MIB_INDISCARDS),
 	SNMP_MIB_ITEM("InDelivers", IPSTATS_MIB_INDELIVERS),
-	SNMP_MIB_ITEM("OutRequests", IPSTATS_MIB_OUTREQUESTS),
+	SNMP_MIB_ITEM("OutRequests", IPSTATS_MIB_OUTPKTS),
 	SNMP_MIB_ITEM("OutDiscards", IPSTATS_MIB_OUTDISCARDS),
 	SNMP_MIB_ITEM("OutNoRoutes", IPSTATS_MIB_OUTNOROUTES),
 	SNMP_MIB_ITEM("ReasmTimeout", IPSTATS_MIB_REASMTIMEOUT),
@@ -118,6 +118,12 @@ static const struct snmp_mib snmp4_ipextstats_list[] = {
 	SNMP_MIB_ITEM("OutMcastPkts", IPSTATS_MIB_OUTMCASTPKTS),
 	SNMP_MIB_ITEM("InBcastPkts", IPSTATS_MIB_INBCASTPKTS),
 	SNMP_MIB_ITEM("OutBcastPkts", IPSTATS_MIB_OUTBCASTPKTS),
+	SNMP_MIB_ITEM("InOctets", IPSTATS_MIB_INOCTETS),
+	SNMP_MIB_ITEM("OutOctets", IPSTATS_MIB_OUTOCTETS),
+	SNMP_MIB_ITEM("InMcastOctets", IPSTATS_MIB_INMCASTOCTETS),
+	SNMP_MIB_ITEM("OutMcastOctets", IPSTATS_MIB_OUTMCASTOCTETS),
+	SNMP_MIB_ITEM("InBcastOctets", IPSTATS_MIB_INBCASTOCTETS),
+	SNMP_MIB_ITEM("OutBcastOctets", IPSTATS_MIB_OUTBCASTOCTETS),
 	SNMP_MIB_SENTINEL
 };
 
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index f774651f0a47..2979f14bb188 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -343,7 +343,7 @@ static int raw_send_hdrinc(struct sock *sk, void *from, size_t length,
 
 	skb->priority = sk->sk_priority;
 	skb->mark = sk->sk_mark;
-	skb->dst = dst_clone(&rt->u.dst);
+	skb_dst_set(skb, dst_clone(&rt->u.dst));
 
 	skb_reset_network_header(skb);
 	iph = ip_hdr(skb);
@@ -799,7 +799,8 @@ static int raw_ioctl(struct sock *sk, int cmd, unsigned long arg)
 {
 	switch (cmd) {
 		case SIOCOUTQ: {
-			int amount = atomic_read(&sk->sk_wmem_alloc);
+			int amount = sk_wmem_alloc_get(sk);
+
 			return put_user(amount, (int __user *)arg);
 		}
 		case SIOCINQ: {
@@ -935,8 +936,8 @@ static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
 	seq_printf(seq, "%4d: %08X:%04X %08X:%04X"
 		" %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d\n",
 		i, src, srcp, dest, destp, sp->sk_state,
-		atomic_read(&sp->sk_wmem_alloc),
-		atomic_read(&sp->sk_rmem_alloc),
+		sk_wmem_alloc_get(sp),
+		sk_rmem_alloc_get(sp),
 		0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp),
 		atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops));
 }
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 28205e5bfa9b..278f46f5011b 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -131,8 +131,8 @@ static int ip_rt_min_advmss __read_mostly	= 256;
 static int ip_rt_secret_interval __read_mostly	= 10 * 60 * HZ;
 static int rt_chain_length_max __read_mostly	= 20;
 
-static void rt_worker_func(struct work_struct *work);
-static DECLARE_DELAYED_WORK(expires_work, rt_worker_func);
+static struct delayed_work expires_work;
+static unsigned long expires_ljiffies;
 
 /*
  *	Interface to generic destination cache.
@@ -787,9 +787,12 @@ static void rt_check_expire(void)
 	struct rtable *rth, *aux, **rthp;
 	unsigned long samples = 0;
 	unsigned long sum = 0, sum2 = 0;
+	unsigned long delta;
 	u64 mult;
 
-	mult = ((u64)ip_rt_gc_interval) << rt_hash_log;
+	delta = jiffies - expires_ljiffies;
+	expires_ljiffies = jiffies;
+	mult = ((u64)delta) << rt_hash_log;
 	if (ip_rt_gc_timeout > 1)
 		do_div(mult, ip_rt_gc_timeout);
 	goal = (unsigned int)mult;
@@ -1064,7 +1067,8 @@ work_done:
 out:	return 0;
 }
 
-static int rt_intern_hash(unsigned hash, struct rtable *rt, struct rtable **rp)
+static int rt_intern_hash(unsigned hash, struct rtable *rt,
+			  struct rtable **rp, struct sk_buff *skb)
 {
 	struct rtable	*rth, **rthp;
 	unsigned long	now;
@@ -1081,8 +1085,35 @@ restart:
 	now = jiffies;
 
 	if (!rt_caching(dev_net(rt->u.dst.dev))) {
-		rt_drop(rt);
-		return 0;
+		/*
+		 * If we're not caching, just tell the caller we
+		 * were successful and don't touch the route.  The
+		 * caller hold the sole reference to the cache entry, and
+		 * it will be released when the caller is done with it.
+		 * If we drop it here, the callers have no way to resolve routes
+		 * when we're not caching.  Instead, just point *rp at rt, so
+		 * the caller gets a single use out of the route
+		 * Note that we do rt_free on this new route entry, so that
+		 * once its refcount hits zero, we are still able to reap it
+		 * (Thanks Alexey)
+		 * Note also the rt_free uses call_rcu.  We don't actually
+		 * need rcu protection here, this is just our path to get
+		 * on the route gc list.
+		 */
+
+		if (rt->rt_type == RTN_UNICAST || rt->fl.iif == 0) {
+			int err = arp_bind_neighbour(&rt->u.dst);
+			if (err) {
+				if (net_ratelimit())
+					printk(KERN_WARNING
+					    "Neighbour table failure & not caching routes.\n");
+				rt_drop(rt);
+				return err;
+			}
+		}
+
+		rt_free(rt);
+		goto skip_hashing;
 	}
 
 	rthp = &rt_hash_table[hash].chain;
@@ -1114,7 +1145,10 @@ restart:
 			spin_unlock_bh(rt_hash_lock_addr(hash));
 
 			rt_drop(rt);
-			*rp = rth;
+			if (rp)
+				*rp = rth;
+			else
+				skb_dst_set(skb, &rth->u.dst);
 			return 0;
 		}
 
@@ -1196,7 +1230,8 @@ restart:
 #if RT_CACHE_DEBUG >= 2
 	if (rt->u.dst.rt_next) {
 		struct rtable *trt;
-		printk(KERN_DEBUG "rt_cache @%02x: %pI4", hash, &rt->rt_dst);
+		printk(KERN_DEBUG "rt_cache @%02x: %pI4",
+		       hash, &rt->rt_dst);
 		for (trt = rt->u.dst.rt_next; trt; trt = trt->u.dst.rt_next)
 			printk(" . %pI4", &trt->rt_dst);
 		printk("\n");
@@ -1210,7 +1245,12 @@ restart:
 	rcu_assign_pointer(rt_hash_table[hash].chain, rt);
 
 	spin_unlock_bh(rt_hash_lock_addr(hash));
-	*rp = rt;
+
+skip_hashing:
+	if (rp)
+		*rp = rt;
+	else
+		skb_dst_set(skb, &rt->u.dst);
 	return 0;
 }
 
@@ -1407,7 +1447,7 @@ void ip_rt_redirect(__be32 old_gw, __be32 daddr, __be32 new_gw,
 							&netevent);
 
 				rt_del(hash, rth);
-				if (!rt_intern_hash(hash, rt, &rt))
+				if (!rt_intern_hash(hash, rt, &rt, NULL))
 					ip_rt_put(rt);
 				goto do_next;
 			}
@@ -1473,7 +1513,7 @@ static struct dst_entry *ipv4_negative_advice(struct dst_entry *dst)
 
 void ip_rt_send_redirect(struct sk_buff *skb)
 {
-	struct rtable *rt = skb->rtable;
+	struct rtable *rt = skb_rtable(skb);
 	struct in_device *in_dev = in_dev_get(rt->u.dst.dev);
 
 	if (!in_dev)
@@ -1521,7 +1561,7 @@ out:
 
 static int ip_error(struct sk_buff *skb)
 {
-	struct rtable *rt = skb->rtable;
+	struct rtable *rt = skb_rtable(skb);
 	unsigned long now;
 	int code;
 
@@ -1698,7 +1738,7 @@ static void ipv4_link_failure(struct sk_buff *skb)
 
 	icmp_send(skb, ICMP_DEST_UNREACH, ICMP_HOST_UNREACH, 0);
 
-	rt = skb->rtable;
+	rt = skb_rtable(skb);
 	if (rt)
 		dst_set_expires(&rt->u.dst, 0);
 }
@@ -1858,7 +1898,7 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
 
 	in_dev_put(in_dev);
 	hash = rt_hash(daddr, saddr, dev->ifindex, rt_genid(dev_net(dev)));
-	return rt_intern_hash(hash, rth, &skb->rtable);
+	return rt_intern_hash(hash, rth, NULL, skb);
 
 e_nobufs:
 	in_dev_put(in_dev);
@@ -2019,7 +2059,7 @@ static int ip_mkroute_input(struct sk_buff *skb,
 	/* put it into the cache */
 	hash = rt_hash(daddr, saddr, fl->iif,
 		       rt_genid(dev_net(rth->u.dst.dev)));
-	return rt_intern_hash(hash, rth, &skb->rtable);
+	return rt_intern_hash(hash, rth, NULL, skb);
 }
 
 /*
@@ -2175,7 +2215,7 @@ local_input:
 	}
 	rth->rt_type	= res.type;
 	hash = rt_hash(daddr, saddr, fl.iif, rt_genid(net));
-	err = rt_intern_hash(hash, rth, &skb->rtable);
+	err = rt_intern_hash(hash, rth, NULL, skb);
 	goto done;
 
 no_route:
@@ -2244,7 +2284,7 @@ int ip_route_input(struct sk_buff *skb, __be32 daddr, __be32 saddr,
 			dst_use(&rth->u.dst, jiffies);
 			RT_CACHE_STAT_INC(in_hit);
 			rcu_read_unlock();
-			skb->rtable = rth;
+			skb_dst_set(skb, &rth->u.dst);
 			return 0;
 		}
 		RT_CACHE_STAT_INC(in_hlist_search);
@@ -2420,7 +2460,7 @@ static int ip_mkroute_output(struct rtable **rp,
 	if (err == 0) {
 		hash = rt_hash(oldflp->fl4_dst, oldflp->fl4_src, oldflp->oif,
 			       rt_genid(dev_net(dev_out)));
-		err = rt_intern_hash(hash, rth, rp);
+		err = rt_intern_hash(hash, rth, rp, NULL);
 	}
 
 	return err;
@@ -2763,7 +2803,7 @@ static int rt_fill_info(struct net *net,
 			struct sk_buff *skb, u32 pid, u32 seq, int event,
 			int nowait, unsigned int flags)
 {
-	struct rtable *rt = skb->rtable;
+	struct rtable *rt = skb_rtable(skb);
 	struct rtmsg *r;
 	struct nlmsghdr *nlh;
 	long expires;
@@ -2907,7 +2947,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
 		err = ip_route_input(skb, dst, src, rtm->rtm_tos, dev);
 		local_bh_enable();
 
-		rt = skb->rtable;
+		rt = skb_rtable(skb);
 		if (err == 0 && rt->u.dst.error)
 			err = -rt->u.dst.error;
 	} else {
@@ -2927,7 +2967,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
 	if (err)
 		goto errout_free;
 
-	skb->rtable = rt;
+	skb_dst_set(skb, &rt->u.dst);
 	if (rtm->rtm_flags & RTM_F_NOTIFY)
 		rt->rt_flags |= RTCF_NOTIFY;
 
@@ -2968,15 +3008,15 @@ int ip_rt_dump(struct sk_buff *skb,  struct netlink_callback *cb)
 				continue;
 			if (rt_is_expired(rt))
 				continue;
-			skb->dst = dst_clone(&rt->u.dst);
+			skb_dst_set(skb, dst_clone(&rt->u.dst));
 			if (rt_fill_info(net, skb, NETLINK_CB(cb->skb).pid,
 					 cb->nlh->nlmsg_seq, RTM_NEWROUTE,
 					 1, NLM_F_MULTI) <= 0) {
-				dst_release(xchg(&skb->dst, NULL));
+				skb_dst_drop(skb);
 				rcu_read_unlock_bh();
 				goto done;
 			}
-			dst_release(xchg(&skb->dst, NULL));
+			skb_dst_drop(skb);
 		}
 		rcu_read_unlock_bh();
 	}
@@ -3390,6 +3430,8 @@ int __init ip_rt_init(void)
 	/* All the timers, started at system startup tend
 	   to synchronize. Perturb it a bit.
 	 */
+	INIT_DELAYED_WORK_DEFERRABLE(&expires_work, rt_worker_func);
+	expires_ljiffies = jiffies;
 	schedule_delayed_work(&expires_work,
 		net_random() % ip_rt_gc_interval + ip_rt_gc_interval);
 
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index b35a950d2e06..cd2b97f1b6e1 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -161,13 +161,12 @@ static __u16 const msstab[] = {
  */
 __u32 cookie_v4_init_sequence(struct sock *sk, struct sk_buff *skb, __u16 *mssp)
 {
-	struct tcp_sock *tp = tcp_sk(sk);
 	const struct iphdr *iph = ip_hdr(skb);
 	const struct tcphdr *th = tcp_hdr(skb);
 	int mssind;
 	const __u16 mss = *mssp;
 
-	tp->last_synq_overflow = jiffies;
+	tcp_synq_overflow(sk);
 
 	/* XXX sort msstab[] by probability?  Binary search? */
 	for (mssind = 0; mss > msstab[mssind + 1]; mssind++)
@@ -268,7 +267,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 	if (!sysctl_tcp_syncookies || !th->ack)
 		goto out;
 
-	if (time_after(jiffies, tp->last_synq_overflow + TCP_TIMEOUT_INIT) ||
+	if (tcp_synq_no_recent_overflow(sk) ||
 	    (mss = cookie_check(skb, cookie)) == 0) {
 		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_SYNCOOKIESFAILED);
 		goto out;
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 7a0f0b27bf1f..17b89c523f9d 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -439,12 +439,14 @@ int tcp_ioctl(struct sock *sk, int cmd, unsigned long arg)
 			 !tp->urg_data ||
 			 before(tp->urg_seq, tp->copied_seq) ||
 			 !before(tp->urg_seq, tp->rcv_nxt)) {
+			struct sk_buff *skb;
+
 			answ = tp->rcv_nxt - tp->copied_seq;
 
 			/* Subtract 1, if FIN is in queue. */
-			if (answ && !skb_queue_empty(&sk->sk_receive_queue))
-				answ -=
-		       tcp_hdr((struct sk_buff *)sk->sk_receive_queue.prev)->fin;
+			skb = skb_peek_tail(&sk->sk_receive_queue);
+			if (answ && skb)
+				answ -= tcp_hdr(skb)->fin;
 		} else
 			answ = tp->urg_seq - tp->copied_seq;
 		release_sock(sk);
@@ -1382,11 +1384,7 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 
 		/* Next get a buffer. */
 
-		skb = skb_peek(&sk->sk_receive_queue);
-		do {
-			if (!skb)
-				break;
-
+		skb_queue_walk(&sk->sk_receive_queue, skb) {
 			/* Now that we have two receive queues this
 			 * shouldn't happen.
 			 */
@@ -1403,8 +1401,7 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 			if (tcp_hdr(skb)->fin)
 				goto found_fin_ok;
 			WARN_ON(!(flags & MSG_PEEK));
-			skb = skb->next;
-		} while (skb != (struct sk_buff *)&sk->sk_receive_queue);
+		}
 
 		/* Well, if we have backlog, try to process it now yet. */
 
@@ -2518,20 +2515,30 @@ struct sk_buff **tcp_gro_receive(struct sk_buff **head, struct sk_buff *skb)
 	unsigned int thlen;
 	unsigned int flags;
 	unsigned int mss = 1;
+	unsigned int hlen;
+	unsigned int off;
 	int flush = 1;
 	int i;
 
-	th = skb_gro_header(skb, sizeof(*th));
-	if (unlikely(!th))
-		goto out;
+	off = skb_gro_offset(skb);
+	hlen = off + sizeof(*th);
+	th = skb_gro_header_fast(skb, off);
+	if (skb_gro_header_hard(skb, hlen)) {
+		th = skb_gro_header_slow(skb, hlen, off);
+		if (unlikely(!th))
+			goto out;
+	}
 
 	thlen = th->doff * 4;
 	if (thlen < sizeof(*th))
 		goto out;
 
-	th = skb_gro_header(skb, thlen);
-	if (unlikely(!th))
-		goto out;
+	hlen = off + thlen;
+	if (skb_gro_header_hard(skb, hlen)) {
+		th = skb_gro_header_slow(skb, hlen, off);
+		if (unlikely(!th))
+			goto out;
+	}
 
 	skb_gro_pull(skb, thlen);
 
@@ -2544,7 +2551,7 @@ struct sk_buff **tcp_gro_receive(struct sk_buff **head, struct sk_buff *skb)
 
 		th2 = tcp_hdr(p);
 
-		if ((th->source ^ th2->source) | (th->dest ^ th2->dest)) {
+		if (*(u32 *)&th->source ^ *(u32 *)&th2->source) {
 			NAPI_GRO_CB(p)->same_flow = 0;
 			continue;
 		}
@@ -2559,14 +2566,14 @@ found:
 	flush |= flags & TCP_FLAG_CWR;
 	flush |= (flags ^ tcp_flag_word(th2)) &
 		  ~(TCP_FLAG_CWR | TCP_FLAG_FIN | TCP_FLAG_PSH);
-	flush |= (th->ack_seq ^ th2->ack_seq) | (th->window ^ th2->window);
-	for (i = sizeof(*th); !flush && i < thlen; i += 4)
+	flush |= th->ack_seq ^ th2->ack_seq;
+	for (i = sizeof(*th); i < thlen; i += 4)
 		flush |= *(u32 *)((u8 *)th + i) ^
 			 *(u32 *)((u8 *)th2 + i);
 
 	mss = skb_shinfo(p)->gso_size;
 
-	flush |= (len > mss) | !len;
+	flush |= (len - 1) >= mss;
 	flush |= (ntohl(th2->seq) + skb_gro_len(p)) ^ ntohl(th->seq);
 
 	if (flush || skb_gro_receive(head, skb)) {
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index eec3e6f9956c..2bdb0da237e6 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -77,7 +77,7 @@ int sysctl_tcp_window_scaling __read_mostly = 1;
 int sysctl_tcp_sack __read_mostly = 1;
 int sysctl_tcp_fack __read_mostly = 1;
 int sysctl_tcp_reordering __read_mostly = TCP_FASTRETRANS_THRESH;
-int sysctl_tcp_ecn __read_mostly;
+int sysctl_tcp_ecn __read_mostly = 2;
 int sysctl_tcp_dsack __read_mostly = 1;
 int sysctl_tcp_app_win __read_mostly = 31;
 int sysctl_tcp_adv_win_scale __read_mostly = 2;
@@ -4426,7 +4426,7 @@ drop:
 		}
 		__skb_queue_head(&tp->out_of_order_queue, skb);
 	} else {
-		struct sk_buff *skb1 = tp->out_of_order_queue.prev;
+		struct sk_buff *skb1 = skb_peek_tail(&tp->out_of_order_queue);
 		u32 seq = TCP_SKB_CB(skb)->seq;
 		u32 end_seq = TCP_SKB_CB(skb)->end_seq;
 
@@ -4443,15 +4443,18 @@ drop:
 		}
 
 		/* Find place to insert this segment. */
-		do {
+		while (1) {
 			if (!after(TCP_SKB_CB(skb1)->seq, seq))
 				break;
-		} while ((skb1 = skb1->prev) !=
-			 (struct sk_buff *)&tp->out_of_order_queue);
+			if (skb_queue_is_first(&tp->out_of_order_queue, skb1)) {
+				skb1 = NULL;
+				break;
+			}
+			skb1 = skb_queue_prev(&tp->out_of_order_queue, skb1);
+		}
 
 		/* Do skb overlap to previous one? */
-		if (skb1 != (struct sk_buff *)&tp->out_of_order_queue &&
-		    before(seq, TCP_SKB_CB(skb1)->end_seq)) {
+		if (skb1 && before(seq, TCP_SKB_CB(skb1)->end_seq)) {
 			if (!after(end_seq, TCP_SKB_CB(skb1)->end_seq)) {
 				/* All the bits are present. Drop. */
 				__kfree_skb(skb);
@@ -4463,15 +4466,26 @@ drop:
 				tcp_dsack_set(sk, seq,
 					      TCP_SKB_CB(skb1)->end_seq);
 			} else {
-				skb1 = skb1->prev;
+				if (skb_queue_is_first(&tp->out_of_order_queue,
+						       skb1))
+					skb1 = NULL;
+				else
+					skb1 = skb_queue_prev(
+						&tp->out_of_order_queue,
+						skb1);
 			}
 		}
-		__skb_queue_after(&tp->out_of_order_queue, skb1, skb);
+		if (!skb1)
+			__skb_queue_head(&tp->out_of_order_queue, skb);
+		else
+			__skb_queue_after(&tp->out_of_order_queue, skb1, skb);
 
 		/* And clean segments covered by new one as whole. */
-		while ((skb1 = skb->next) !=
-		       (struct sk_buff *)&tp->out_of_order_queue &&
-		       after(end_seq, TCP_SKB_CB(skb1)->seq)) {
+		while (!skb_queue_is_last(&tp->out_of_order_queue, skb)) {
+			skb1 = skb_queue_next(&tp->out_of_order_queue, skb);
+
+			if (!after(end_seq, TCP_SKB_CB(skb1)->seq))
+				break;
 			if (before(end_seq, TCP_SKB_CB(skb1)->end_seq)) {
 				tcp_dsack_extend(sk, TCP_SKB_CB(skb1)->seq,
 						 end_seq);
@@ -4492,7 +4506,10 @@ add_sack:
 static struct sk_buff *tcp_collapse_one(struct sock *sk, struct sk_buff *skb,
 					struct sk_buff_head *list)
 {
-	struct sk_buff *next = skb->next;
+	struct sk_buff *next = NULL;
+
+	if (!skb_queue_is_last(list, skb))
+		next = skb_queue_next(list, skb);
 
 	__skb_unlink(skb, list);
 	__kfree_skb(skb);
@@ -4503,6 +4520,9 @@ static struct sk_buff *tcp_collapse_one(struct sock *sk, struct sk_buff *skb,
 
 /* Collapse contiguous sequence of skbs head..tail with
  * sequence numbers start..end.
+ *
+ * If tail is NULL, this means until the end of the list.
+ *
  * Segments with FIN/SYN are not collapsed (only because this
  * simplifies code)
  */
@@ -4511,15 +4531,23 @@ tcp_collapse(struct sock *sk, struct sk_buff_head *list,
 	     struct sk_buff *head, struct sk_buff *tail,
 	     u32 start, u32 end)
 {
-	struct sk_buff *skb;
+	struct sk_buff *skb, *n;
+	bool end_of_skbs;
 
 	/* First, check that queue is collapsible and find
 	 * the point where collapsing can be useful. */
-	for (skb = head; skb != tail;) {
+	skb = head;
+restart:
+	end_of_skbs = true;
+	skb_queue_walk_from_safe(list, skb, n) {
+		if (skb == tail)
+			break;
 		/* No new bits? It is possible on ofo queue. */
 		if (!before(start, TCP_SKB_CB(skb)->end_seq)) {
 			skb = tcp_collapse_one(sk, skb, list);
-			continue;
+			if (!skb)
+				break;
+			goto restart;
 		}
 
 		/* The first skb to collapse is:
@@ -4529,16 +4557,24 @@ tcp_collapse(struct sock *sk, struct sk_buff_head *list,
 		 */
 		if (!tcp_hdr(skb)->syn && !tcp_hdr(skb)->fin &&
 		    (tcp_win_from_space(skb->truesize) > skb->len ||
-		     before(TCP_SKB_CB(skb)->seq, start) ||
-		     (skb->next != tail &&
-		      TCP_SKB_CB(skb)->end_seq != TCP_SKB_CB(skb->next)->seq)))
+		     before(TCP_SKB_CB(skb)->seq, start))) {
+			end_of_skbs = false;
 			break;
+		}
+
+		if (!skb_queue_is_last(list, skb)) {
+			struct sk_buff *next = skb_queue_next(list, skb);
+			if (next != tail &&
+			    TCP_SKB_CB(skb)->end_seq != TCP_SKB_CB(next)->seq) {
+				end_of_skbs = false;
+				break;
+			}
+		}
 
 		/* Decided to skip this, advance start seq. */
 		start = TCP_SKB_CB(skb)->end_seq;
-		skb = skb->next;
 	}
-	if (skb == tail || tcp_hdr(skb)->syn || tcp_hdr(skb)->fin)
+	if (end_of_skbs || tcp_hdr(skb)->syn || tcp_hdr(skb)->fin)
 		return;
 
 	while (before(start, end)) {
@@ -4583,7 +4619,8 @@ tcp_collapse(struct sock *sk, struct sk_buff_head *list,
 			}
 			if (!before(start, TCP_SKB_CB(skb)->end_seq)) {
 				skb = tcp_collapse_one(sk, skb, list);
-				if (skb == tail ||
+				if (!skb ||
+				    skb == tail ||
 				    tcp_hdr(skb)->syn ||
 				    tcp_hdr(skb)->fin)
 					return;
@@ -4610,17 +4647,21 @@ static void tcp_collapse_ofo_queue(struct sock *sk)
 	head = skb;
 
 	for (;;) {
-		skb = skb->next;
+		struct sk_buff *next = NULL;
+
+		if (!skb_queue_is_last(&tp->out_of_order_queue, skb))
+			next = skb_queue_next(&tp->out_of_order_queue, skb);
+		skb = next;
 
 		/* Segment is terminated when we see gap or when
 		 * we are at the end of all the queue. */
-		if (skb == (struct sk_buff *)&tp->out_of_order_queue ||
+		if (!skb ||
 		    after(TCP_SKB_CB(skb)->seq, end) ||
 		    before(TCP_SKB_CB(skb)->end_seq, start)) {
 			tcp_collapse(sk, &tp->out_of_order_queue,
 				     head, skb, start, end);
 			head = skb;
-			if (skb == (struct sk_buff *)&tp->out_of_order_queue)
+			if (!skb)
 				break;
 			/* Start new segment */
 			start = TCP_SKB_CB(skb)->seq;
@@ -4681,10 +4722,11 @@ static int tcp_prune_queue(struct sock *sk)
 		tp->rcv_ssthresh = min(tp->rcv_ssthresh, 4U * tp->advmss);
 
 	tcp_collapse_ofo_queue(sk);
-	tcp_collapse(sk, &sk->sk_receive_queue,
-		     sk->sk_receive_queue.next,
-		     (struct sk_buff *)&sk->sk_receive_queue,
-		     tp->copied_seq, tp->rcv_nxt);
+	if (!skb_queue_empty(&sk->sk_receive_queue))
+		tcp_collapse(sk, &sk->sk_receive_queue,
+			     skb_peek(&sk->sk_receive_queue),
+			     NULL,
+			     tp->copied_seq, tp->rcv_nxt);
 	sk_mem_reclaim(sk);
 
 	if (atomic_read(&sk->sk_rmem_alloc) <= sk->sk_rcvbuf)
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 5d427f86b414..5a1ca2698c88 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -546,7 +546,7 @@ static void tcp_v4_send_reset(struct sock *sk, struct sk_buff *skb)
 	if (th->rst)
 		return;
 
-	if (skb->rtable->rt_type != RTN_LOCAL)
+	if (skb_rtable(skb)->rt_type != RTN_LOCAL)
 		return;
 
 	/* Swap the send and the receive. */
@@ -590,7 +590,7 @@ static void tcp_v4_send_reset(struct sock *sk, struct sk_buff *skb)
 	arg.csumoffset = offsetof(struct tcphdr, check) / 2;
 	arg.flags = (sk && inet_sk(sk)->transparent) ? IP_REPLY_ARG_NOSRCCHECK : 0;
 
-	net = dev_net(skb->dst->dev);
+	net = dev_net(skb_dst(skb)->dev);
 	ip_send_reply(net->ipv4.tcp_sock, skb,
 		      &arg, arg.iov[0].iov_len);
 
@@ -617,7 +617,7 @@ static void tcp_v4_send_ack(struct sk_buff *skb, u32 seq, u32 ack,
 			];
 	} rep;
 	struct ip_reply_arg arg;
-	struct net *net = dev_net(skb->dst->dev);
+	struct net *net = dev_net(skb_dst(skb)->dev);
 
 	memset(&rep.th, 0, sizeof(struct tcphdr));
 	memset(&arg, 0, sizeof(arg));
@@ -1185,7 +1185,7 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
 #endif
 
 	/* Never answer to SYNs send to broadcast or multicast */
-	if (skb->rtable->rt_flags & (RTCF_BROADCAST | RTCF_MULTICAST))
+	if (skb_rtable(skb)->rt_flags & (RTCF_BROADCAST | RTCF_MULTICAST))
 		goto drop;
 
 	/* TW buckets are converted to open requests without
@@ -1593,7 +1593,7 @@ process:
 #endif
 		{
 			if (!tcp_prequeue(sk, skb))
-			ret = tcp_v4_do_rcv(sk, skb);
+				ret = tcp_v4_do_rcv(sk, skb);
 		}
 	} else
 		sk_add_backlog(sk, skb);
@@ -2343,7 +2343,7 @@ void tcp4_proc_exit(void)
 
 struct sk_buff **tcp4_gro_receive(struct sk_buff **head, struct sk_buff *skb)
 {
-	struct iphdr *iph = ip_hdr(skb);
+	struct iphdr *iph = skb_gro_network_header(skb);
 
 	switch (skb->ip_summed) {
 	case CHECKSUM_COMPLETE:
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 59aec609cec6..416fc4c2e7eb 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -288,7 +288,7 @@ static inline void TCP_ECN_send_syn(struct sock *sk, struct sk_buff *skb)
 	struct tcp_sock *tp = tcp_sk(sk);
 
 	tp->ecn_flags = 0;
-	if (sysctl_tcp_ecn) {
+	if (sysctl_tcp_ecn == 1) {
 		TCP_SKB_CB(skb)->flags |= TCPCB_FLAG_ECE | TCPCB_FLAG_CWR;
 		tp->ecn_flags = TCP_ECN_OK;
 	}
@@ -2202,7 +2202,7 @@ struct sk_buff *tcp_make_synack(struct sock *sk, struct dst_entry *dst,
 	/* Reserve space for headers. */
 	skb_reserve(skb, MAX_TCP_HEADER);
 
-	skb->dst = dst_clone(dst);
+	skb_dst_set(skb, dst_clone(dst));
 
 	mss = dst_metric(dst, RTAX_ADVMSS);
 	if (tp->rx_opt.user_mss && tp->rx_opt.user_mss < mss)
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 7a1d1ce22e66..80e3812837ad 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -328,7 +328,7 @@ static inline struct sock *__udp4_lib_lookup_skb(struct sk_buff *skb,
 	if (unlikely(sk = skb_steal_sock(skb)))
 		return sk;
 	else
-		return __udp4_lib_lookup(dev_net(skb->dst->dev), iph->saddr, sport,
+		return __udp4_lib_lookup(dev_net(skb_dst(skb)->dev), iph->saddr, sport,
 					 iph->daddr, dport, inet_iif(skb),
 					 udptable);
 }
@@ -840,7 +840,8 @@ int udp_ioctl(struct sock *sk, int cmd, unsigned long arg)
 	switch (cmd) {
 	case SIOCOUTQ:
 	{
-		int amount = atomic_read(&sk->sk_wmem_alloc);
+		int amount = sk_wmem_alloc_get(sk);
+
 		return put_user(amount, (int __user *)arg);
 	}
 
@@ -1237,7 +1238,7 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
 	struct sock *sk;
 	struct udphdr *uh;
 	unsigned short ulen;
-	struct rtable *rt = (struct rtable*)skb->dst;
+	struct rtable *rt = skb_rtable(skb);
 	__be32 saddr, daddr;
 	struct net *net = dev_net(skb->dev);
 
@@ -1721,8 +1722,8 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f,
 	seq_printf(f, "%4d: %08X:%04X %08X:%04X"
 		" %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d%n",
 		bucket, src, srcp, dest, destp, sp->sk_state,
-		atomic_read(&sp->sk_wmem_alloc),
-		atomic_read(&sp->sk_rmem_alloc),
+		sk_wmem_alloc_get(sp),
+		sk_rmem_alloc_get(sp),
 		0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp),
 		atomic_read(&sp->sk_refcnt), sp,
 		atomic_read(&sp->sk_drops), len);
diff --git a/net/ipv4/xfrm4_input.c b/net/ipv4/xfrm4_input.c
index 4ec2162a437e..f9f922a0ba88 100644
--- a/net/ipv4/xfrm4_input.c
+++ b/net/ipv4/xfrm4_input.c
@@ -23,7 +23,7 @@ int xfrm4_extract_input(struct xfrm_state *x, struct sk_buff *skb)
 
 static inline int xfrm4_rcv_encap_finish(struct sk_buff *skb)
 {
-	if (skb->dst == NULL) {
+	if (skb_dst(skb) == NULL) {
 		const struct iphdr *iph = ip_hdr(skb);
 
 		if (ip_route_input(skb, iph->daddr, iph->saddr, iph->tos,
diff --git a/net/ipv4/xfrm4_mode_tunnel.c b/net/ipv4/xfrm4_mode_tunnel.c
index 7135279f3f84..3444f3b34eca 100644
--- a/net/ipv4/xfrm4_mode_tunnel.c
+++ b/net/ipv4/xfrm4_mode_tunnel.c
@@ -28,7 +28,7 @@ static inline void ipip_ecn_decapsulate(struct sk_buff *skb)
  */
 static int xfrm4_mode_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
 {
-	struct dst_entry *dst = skb->dst;
+	struct dst_entry *dst = skb_dst(skb);
 	struct iphdr *top_iph;
 	int flags;
 
@@ -41,7 +41,7 @@ static int xfrm4_mode_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
 	top_iph->ihl = 5;
 	top_iph->version = 4;
 
-	top_iph->protocol = xfrm_af2proto(skb->dst->ops->family);
+	top_iph->protocol = xfrm_af2proto(skb_dst(skb)->ops->family);
 
 	/* DS disclosed */
 	top_iph->tos = INET_ECN_encapsulate(XFRM_MODE_SKB_CB(skb)->tos,
diff --git a/net/ipv4/xfrm4_output.c b/net/ipv4/xfrm4_output.c
index 8c3180adddbf..c908bd99bcba 100644
--- a/net/ipv4/xfrm4_output.c
+++ b/net/ipv4/xfrm4_output.c
@@ -29,7 +29,7 @@ static int xfrm4_tunnel_check_size(struct sk_buff *skb)
 	if (!(ip_hdr(skb)->frag_off & htons(IP_DF)) || skb->local_df)
 		goto out;
 
-	dst = skb->dst;
+	dst = skb_dst(skb);
 	mtu = dst_mtu(dst);
 	if (skb->len > mtu) {
 		icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED, htonl(mtu));
@@ -72,7 +72,7 @@ EXPORT_SYMBOL(xfrm4_prepare_output);
 static int xfrm4_output_finish(struct sk_buff *skb)
 {
 #ifdef CONFIG_NETFILTER
-	if (!skb->dst->xfrm) {
+	if (!skb_dst(skb)->xfrm) {
 		IPCB(skb)->flags |= IPSKB_REROUTED;
 		return dst_output(skb);
 	}
@@ -87,6 +87,6 @@ static int xfrm4_output_finish(struct sk_buff *skb)
 int xfrm4_output(struct sk_buff *skb)
 {
 	return NF_HOOK_COND(PF_INET, NF_INET_POST_ROUTING, skb,
-			    NULL, skb->dst->dev, xfrm4_output_finish,
+			    NULL, skb_dst(skb)->dev, xfrm4_output_finish,
 			    !(IPCB(skb)->flags & IPSKB_REROUTED));
 }
diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig
index ca8cb326d1d2..ead6c7a42f44 100644
--- a/net/ipv6/Kconfig
+++ b/net/ipv6/Kconfig
@@ -168,7 +168,7 @@ config IPV6_SIT
 	  into IPv4 packets. This is useful if you want to connect two IPv6
 	  networks over an IPv4-only path.
 
-	  Saying M here will produce a module called sit.ko. If unsure, say Y.
+	  Saying M here will produce a module called sit. If unsure, say Y.
 
 config IPV6_NDISC_NODETYPE
 	bool
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index a8218bc1806a..8c1e86afbbf5 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -503,7 +503,7 @@ static int addrconf_fixup_forwarding(struct ctl_table *table, int *p, int old)
 		return 0;
 
 	if (!rtnl_trylock())
-		return -ERESTARTSYS;
+		return restart_syscall();
 
 	if (p == &net->ipv6.devconf_all->forwarding) {
 		__s32 newf = net->ipv6.devconf_all->forwarding;
@@ -591,7 +591,6 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, int pfxlen,
 {
 	struct inet6_ifaddr *ifa = NULL;
 	struct rt6_info *rt;
-	struct net *net = dev_net(idev->dev);
 	int hash;
 	int err = 0;
 	int addr_type = ipv6_addr_type(addr);
@@ -608,7 +607,7 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, int pfxlen,
 		goto out2;
 	}
 
-	if (idev->cnf.disable_ipv6 || net->ipv6.devconf_all->disable_ipv6) {
+	if (idev->cnf.disable_ipv6) {
 		err = -EACCES;
 		goto out2;
 	}
@@ -1520,6 +1519,8 @@ static int addrconf_ifid_infiniband(u8 *eui, struct net_device *dev)
 
 int __ipv6_isatap_ifid(u8 *eui, __be32 addr)
 {
+	if (addr == 0)
+		return -1;
 	eui[0] = (ipv4_is_zeronet(addr) || ipv4_is_private_10(addr) ||
 		  ipv4_is_loopback(addr) || ipv4_is_linklocal_169(addr) ||
 		  ipv4_is_private_172(addr) || ipv4_is_test_192(addr) ||
@@ -1750,6 +1751,7 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len)
 	__u32 prefered_lft;
 	int addr_type;
 	struct inet6_dev *in6_dev;
+	struct net *net = dev_net(dev);
 
 	pinfo = (struct prefix_info *) opt;
 
@@ -1807,7 +1809,7 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len)
 		if (addrconf_finite_timeout(rt_expires))
 			rt_expires *= HZ;
 
-		rt = rt6_lookup(dev_net(dev), &pinfo->prefix, NULL,
+		rt = rt6_lookup(net, &pinfo->prefix, NULL,
 				dev->ifindex, 1);
 
 		if (rt && addrconf_is_prefix_route(rt)) {
@@ -1844,7 +1846,6 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len)
 		struct inet6_ifaddr * ifp;
 		struct in6_addr addr;
 		int create = 0, update_lft = 0;
-		struct net *net = dev_net(dev);
 
 		if (pinfo->prefix_len == 64) {
 			memcpy(&addr, &pinfo->prefix, 8);
@@ -2765,7 +2766,7 @@ static void addrconf_dad_start(struct inet6_ifaddr *ifp, u32 flags)
 		spin_unlock_bh(&ifp->lock);
 		read_unlock_bh(&idev->lock);
 		/*
-		 * If the defice is not ready:
+		 * If the device is not ready:
 		 * - keep it tentative if it is a permanent address.
 		 * - otherwise, kill it.
 		 */
@@ -3986,6 +3987,75 @@ static int addrconf_sysctl_forward_strategy(ctl_table *table,
 	return addrconf_fixup_forwarding(table, valp, val);
 }
 
+static void dev_disable_change(struct inet6_dev *idev)
+{
+	if (!idev || !idev->dev)
+		return;
+
+	if (idev->cnf.disable_ipv6)
+		addrconf_notify(NULL, NETDEV_DOWN, idev->dev);
+	else
+		addrconf_notify(NULL, NETDEV_UP, idev->dev);
+}
+
+static void addrconf_disable_change(struct net *net, __s32 newf)
+{
+	struct net_device *dev;
+	struct inet6_dev *idev;
+
+	read_lock(&dev_base_lock);
+	for_each_netdev(net, dev) {
+		rcu_read_lock();
+		idev = __in6_dev_get(dev);
+		if (idev) {
+			int changed = (!idev->cnf.disable_ipv6) ^ (!newf);
+			idev->cnf.disable_ipv6 = newf;
+			if (changed)
+				dev_disable_change(idev);
+		}
+		rcu_read_unlock();
+	}
+	read_unlock(&dev_base_lock);
+}
+
+static int addrconf_disable_ipv6(struct ctl_table *table, int *p, int old)
+{
+	struct net *net;
+
+	net = (struct net *)table->extra2;
+
+	if (p == &net->ipv6.devconf_dflt->disable_ipv6)
+		return 0;
+
+	if (!rtnl_trylock())
+		return restart_syscall();
+
+	if (p == &net->ipv6.devconf_all->disable_ipv6) {
+		__s32 newf = net->ipv6.devconf_all->disable_ipv6;
+		net->ipv6.devconf_dflt->disable_ipv6 = newf;
+		addrconf_disable_change(net, newf);
+	} else if ((!*p) ^ (!old))
+		dev_disable_change((struct inet6_dev *)table->extra1);
+
+	rtnl_unlock();
+	return 0;
+}
+
+static
+int addrconf_sysctl_disable(ctl_table *ctl, int write, struct file * filp,
+			    void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	int *valp = ctl->data;
+	int val = *valp;
+	int ret;
+
+	ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos);
+
+	if (write)
+		ret = addrconf_disable_ipv6(ctl, valp, val);
+	return ret;
+}
+
 static struct addrconf_sysctl_table
 {
 	struct ctl_table_header *sysctl_header;
@@ -4223,7 +4293,8 @@ static struct addrconf_sysctl_table
 			.data		=	&ipv6_devconf.disable_ipv6,
 			.maxlen		=	sizeof(int),
 			.mode		=	0644,
-			.proc_handler	=	proc_dointvec,
+			.proc_handler	=	addrconf_sysctl_disable,
+			.strategy	=	sysctl_intvec,
 		},
 		{
 			.ctl_name	=	CTL_UNNUMBERED,
@@ -4344,6 +4415,10 @@ static int addrconf_init_net(struct net *net)
 		dflt = kmemdup(dflt, sizeof(ipv6_devconf_dflt), GFP_KERNEL);
 		if (dflt == NULL)
 			goto err_alloc_dflt;
+	} else {
+		/* these will be inherited by all namespaces */
+		dflt->autoconf = ipv6_defaults.autoconf;
+		dflt->disable_ipv6 = ipv6_defaults.disable_ipv6;
 	}
 
 	net->ipv6.devconf_all = all;
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 61f55386a236..85b3d0036afd 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -72,9 +72,21 @@ MODULE_LICENSE("GPL");
 static struct list_head inetsw6[SOCK_MAX];
 static DEFINE_SPINLOCK(inetsw6_lock);
 
-static int disable_ipv6 = 0;
-module_param_named(disable, disable_ipv6, int, 0);
-MODULE_PARM_DESC(disable, "Disable IPv6 such that it is non-functional");
+struct ipv6_params ipv6_defaults = {
+	.disable_ipv6 = 0,
+	.autoconf = 1,
+};
+
+static int disable_ipv6_mod = 0;
+
+module_param_named(disable, disable_ipv6_mod, int, 0444);
+MODULE_PARM_DESC(disable, "Disable IPv6 module such that it is non-functional");
+
+module_param_named(disable_ipv6, ipv6_defaults.disable_ipv6, int, 0444);
+MODULE_PARM_DESC(disable_ipv6, "Disable IPv6 on all interfaces");
+
+module_param_named(autoconf, ipv6_defaults.autoconf, int, 0444);
+MODULE_PARM_DESC(autoconf, "Enable IPv6 address autoconfiguration on all interfaces");
 
 static __inline__ struct ipv6_pinfo *inet6_sk_generic(struct sock *sk)
 {
@@ -817,13 +829,20 @@ static struct sk_buff **ipv6_gro_receive(struct sk_buff **head,
 	struct sk_buff *p;
 	struct ipv6hdr *iph;
 	unsigned int nlen;
+	unsigned int hlen;
+	unsigned int off;
 	int flush = 1;
 	int proto;
 	__wsum csum;
 
-	iph = skb_gro_header(skb, sizeof(*iph));
-	if (unlikely(!iph))
-		goto out;
+	off = skb_gro_offset(skb);
+	hlen = off + sizeof(*iph);
+	iph = skb_gro_header_fast(skb, off);
+	if (skb_gro_header_hard(skb, hlen)) {
+		iph = skb_gro_header_slow(skb, hlen, off);
+		if (unlikely(!iph))
+			goto out;
+	}
 
 	skb_gro_pull(skb, sizeof(*iph));
 	skb_set_transport_header(skb, skb_gro_offset(skb));
@@ -1031,7 +1050,7 @@ static int __init inet6_init(void)
 	for(r = &inetsw6[0]; r < &inetsw6[SOCK_MAX]; ++r)
 		INIT_LIST_HEAD(r);
 
-	if (disable_ipv6) {
+	if (disable_ipv6_mod) {
 		printk(KERN_INFO
 		       "IPv6: Loaded, but administratively disabled, "
 		       "reboot required to enable\n");
@@ -1220,7 +1239,7 @@ module_init(inet6_init);
 
 static void __exit inet6_exit(void)
 {
-	if (disable_ipv6)
+	if (disable_ipv6_mod)
 		return;
 
 	/* First of all disallow new sockets creation. */
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index 52449f7a1b71..86f42a288c4b 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -405,7 +405,7 @@ out:
 }
 
 static void ah6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-		    int type, int code, int offset, __be32 info)
+		    u8 type, u8 code, int offset, __be32 info)
 {
 	struct net *net = dev_net(skb->dev);
 	struct ipv6hdr *iph = (struct ipv6hdr*)skb->data;
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index c2f250150db1..678bb95b1525 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -354,7 +354,7 @@ static u32 esp6_get_mtu(struct xfrm_state *x, int mtu)
 }
 
 static void esp6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-		     int type, int code, int offset, __be32 info)
+		     u8 type, u8 code, int offset, __be32 info)
 {
 	struct net *net = dev_net(skb->dev);
 	struct ipv6hdr *iph = (struct ipv6hdr*)skb->data;
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index 1c7f400a3cfe..4aae658e5501 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -277,7 +277,7 @@ static int ipv6_destopt_rcv(struct sk_buff *skb)
 	if (!pskb_may_pull(skb, skb_transport_offset(skb) + 8) ||
 	    !pskb_may_pull(skb, (skb_transport_offset(skb) +
 				 ((skb_transport_header(skb)[1] + 1) << 3)))) {
-		IP6_INC_STATS_BH(dev_net(skb->dst->dev), ip6_dst_idev(skb->dst),
+		IP6_INC_STATS_BH(dev_net(skb_dst(skb)->dev), ip6_dst_idev(skb_dst(skb)),
 				 IPSTATS_MIB_INHDRERRORS);
 		kfree_skb(skb);
 		return -1;
@@ -288,7 +288,7 @@ static int ipv6_destopt_rcv(struct sk_buff *skb)
 	dstbuf = opt->dst1;
 #endif
 
-	dst = dst_clone(skb->dst);
+	dst = dst_clone(skb_dst(skb));
 	if (ip6_parse_tlv(tlvprocdestopt_lst, skb)) {
 		dst_release(dst);
 		skb->transport_header += (skb_transport_header(skb)[1] + 1) << 3;
@@ -333,7 +333,7 @@ static int ipv6_rthdr_rcv(struct sk_buff *skb)
 	if (!pskb_may_pull(skb, skb_transport_offset(skb) + 8) ||
 	    !pskb_may_pull(skb, (skb_transport_offset(skb) +
 				 ((skb_transport_header(skb)[1] + 1) << 3)))) {
-		IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst),
+		IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
 				 IPSTATS_MIB_INHDRERRORS);
 		kfree_skb(skb);
 		return -1;
@@ -343,7 +343,7 @@ static int ipv6_rthdr_rcv(struct sk_buff *skb)
 
 	if (ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr) ||
 	    skb->pkt_type != PACKET_HOST) {
-		IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst),
+		IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
 				 IPSTATS_MIB_INADDRERRORS);
 		kfree_skb(skb);
 		return -1;
@@ -358,7 +358,7 @@ looped_back:
 			 * processed by own
 			 */
 			if (!addr) {
-				IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst),
+				IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
 						 IPSTATS_MIB_INADDRERRORS);
 				kfree_skb(skb);
 				return -1;
@@ -384,7 +384,7 @@ looped_back:
 			goto unknown_rh;
 		/* Silently discard invalid RTH type 2 */
 		if (hdr->hdrlen != 2 || hdr->segments_left != 1) {
-			IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst),
+			IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
 					 IPSTATS_MIB_INHDRERRORS);
 			kfree_skb(skb);
 			return -1;
@@ -403,7 +403,7 @@ looped_back:
 	n = hdr->hdrlen >> 1;
 
 	if (hdr->segments_left > n) {
-		IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst),
+		IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
 				 IPSTATS_MIB_INHDRERRORS);
 		icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
 				  ((&hdr->segments_left) -
@@ -417,7 +417,7 @@ looped_back:
 	if (skb_cloned(skb)) {
 		/* the copy is a forwarded packet */
 		if (pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
-			IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst),
+			IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
 					 IPSTATS_MIB_OUTDISCARDS);
 			kfree_skb(skb);
 			return -1;
@@ -440,13 +440,13 @@ looped_back:
 		if (xfrm6_input_addr(skb, (xfrm_address_t *)addr,
 				     (xfrm_address_t *)&ipv6_hdr(skb)->saddr,
 				     IPPROTO_ROUTING) < 0) {
-			IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst),
+			IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
 					 IPSTATS_MIB_INADDRERRORS);
 			kfree_skb(skb);
 			return -1;
 		}
-		if (!ipv6_chk_home_addr(dev_net(skb->dst->dev), addr)) {
-			IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst),
+		if (!ipv6_chk_home_addr(dev_net(skb_dst(skb)->dev), addr)) {
+			IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
 					 IPSTATS_MIB_INADDRERRORS);
 			kfree_skb(skb);
 			return -1;
@@ -458,7 +458,7 @@ looped_back:
 	}
 
 	if (ipv6_addr_is_multicast(addr)) {
-		IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst),
+		IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
 				 IPSTATS_MIB_INADDRERRORS);
 		kfree_skb(skb);
 		return -1;
@@ -468,17 +468,17 @@ looped_back:
 	ipv6_addr_copy(addr, &ipv6_hdr(skb)->daddr);
 	ipv6_addr_copy(&ipv6_hdr(skb)->daddr, &daddr);
 
-	dst_release(xchg(&skb->dst, NULL));
+	skb_dst_drop(skb);
 	ip6_route_input(skb);
-	if (skb->dst->error) {
+	if (skb_dst(skb)->error) {
 		skb_push(skb, skb->data - skb_network_header(skb));
 		dst_input(skb);
 		return -1;
 	}
 
-	if (skb->dst->dev->flags&IFF_LOOPBACK) {
+	if (skb_dst(skb)->dev->flags&IFF_LOOPBACK) {
 		if (ipv6_hdr(skb)->hop_limit <= 1) {
-			IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst),
+			IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
 					 IPSTATS_MIB_INHDRERRORS);
 			icmpv6_send(skb, ICMPV6_TIME_EXCEED, ICMPV6_EXC_HOPLIMIT,
 				    0, skb->dev);
@@ -494,7 +494,7 @@ looped_back:
 	return -1;
 
 unknown_rh:
-	IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst), IPSTATS_MIB_INHDRERRORS);
+	IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)), IPSTATS_MIB_INHDRERRORS);
 	icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
 			  (&hdr->type) - skb_network_header(skb));
 	return -1;
@@ -552,11 +552,11 @@ void ipv6_exthdrs_exit(void)
  **********************************/
 
 /*
- * Note: we cannot rely on skb->dst before we assign it in ip6_route_input().
+ * Note: we cannot rely on skb_dst(skb) before we assign it in ip6_route_input().
  */
 static inline struct inet6_dev *ipv6_skb_idev(struct sk_buff *skb)
 {
-	return skb->dst ? ip6_dst_idev(skb->dst) : __in6_dev_get(skb->dev);
+	return skb_dst(skb) ? ip6_dst_idev(skb_dst(skb)) : __in6_dev_get(skb->dev);
 }
 
 /* Router Alert as of RFC 2711 */
@@ -581,7 +581,7 @@ static int ipv6_hop_jumbo(struct sk_buff *skb, int optoff)
 {
 	const unsigned char *nh = skb_network_header(skb);
 	u32 pkt_len;
-	struct net *net = dev_net(skb->dst->dev);
+	struct net *net = dev_net(skb_dst(skb)->dev);
 
 	if (nh[optoff + 1] != 4 || (optoff & 3) != 2) {
 		LIMIT_NETDEBUG(KERN_DEBUG "ipv6_hop_jumbo: wrong jumbo opt length/alignment %d\n",
diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c
index f5de3f9dc692..00a7a5e4ac97 100644
--- a/net/ipv6/fib6_rules.c
+++ b/net/ipv6/fib6_rules.c
@@ -151,7 +151,7 @@ static const struct nla_policy fib6_rule_policy[FRA_MAX+1] = {
 };
 
 static int fib6_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
-			       struct nlmsghdr *nlh, struct fib_rule_hdr *frh,
+			       struct fib_rule_hdr *frh,
 			       struct nlattr **tb)
 {
 	int err = -EINVAL;
@@ -211,7 +211,7 @@ static int fib6_rule_compare(struct fib_rule *rule, struct fib_rule_hdr *frh,
 }
 
 static int fib6_rule_fill(struct fib_rule *rule, struct sk_buff *skb,
-			  struct nlmsghdr *nlh, struct fib_rule_hdr *frh)
+			  struct fib_rule_hdr *frh)
 {
 	struct fib6_rule *rule6 = (struct fib6_rule *) rule;
 
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 36dff8807183..eab62a7a8f06 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -117,7 +117,7 @@ static __inline__ void icmpv6_xmit_unlock(struct sock *sk)
 /*
  * Slightly more convenient version of icmpv6_send.
  */
-void icmpv6_param_prob(struct sk_buff *skb, int code, int pos)
+void icmpv6_param_prob(struct sk_buff *skb, u8 code, int pos)
 {
 	icmpv6_send(skb, ICMPV6_PARAMPROB, code, pos, skb->dev);
 	kfree_skb(skb);
@@ -161,7 +161,7 @@ static int is_ineligible(struct sk_buff *skb)
 /*
  * Check the ICMP output rate limit
  */
-static inline int icmpv6_xrlim_allow(struct sock *sk, int type,
+static inline int icmpv6_xrlim_allow(struct sock *sk, u8 type,
 				     struct flowi *fl)
 {
 	struct dst_entry *dst;
@@ -305,7 +305,7 @@ static inline void mip6_addr_swap(struct sk_buff *skb) {}
 /*
  *	Send an ICMP message in response to a packet in error
  */
-void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info,
+void icmpv6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info,
 		 struct net_device *dev)
 {
 	struct net *net = dev_net(skb->dev);
@@ -590,7 +590,7 @@ out:
 	icmpv6_xmit_unlock(sk);
 }
 
-static void icmpv6_notify(struct sk_buff *skb, int type, int code, __be32 info)
+static void icmpv6_notify(struct sk_buff *skb, u8 type, u8 code, __be32 info)
 {
 	struct inet6_protocol *ipprot;
 	int inner_offset;
@@ -643,7 +643,7 @@ static int icmpv6_rcv(struct sk_buff *skb)
 	struct in6_addr *saddr, *daddr;
 	struct ipv6hdr *orig_hdr;
 	struct icmp6hdr *hdr;
-	int type;
+	u8 type;
 
 	if (!xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) {
 		struct sec_path *sp = skb_sec_path(skb);
@@ -914,7 +914,7 @@ static const struct icmp6_err {
 	},
 };
 
-int icmpv6_err_convert(int type, int code, int *err)
+int icmpv6_err_convert(u8 type, u8 code, int *err)
 {
 	int fatal = 0;
 
diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index 3c3732d50c1a..cc4797dd8325 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -228,7 +228,7 @@ int inet6_csk_xmit(struct sk_buff *skb, int ipfragok)
 		__inet6_csk_dst_store(sk, dst, NULL, NULL);
 	}
 
-	skb->dst = dst_clone(dst);
+	skb_dst_set(skb, dst_clone(dst));
 
 	/* Restore final destination back after routing done */
 	ipv6_addr_copy(&fl.fl6_dst, &np->daddr);
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index 8f04bd9da274..c3a07d75b5f5 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -48,7 +48,7 @@
 
 inline int ip6_rcv_finish( struct sk_buff *skb)
 {
-	if (skb->dst == NULL)
+	if (skb_dst(skb) == NULL)
 		ip6_route_input(skb);
 
 	return dst_input(skb);
@@ -70,7 +70,7 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
 
 	idev = __in6_dev_get(skb->dev);
 
-	IP6_INC_STATS_BH(net, idev, IPSTATS_MIB_INRECEIVES);
+	IP6_UPD_PO_STATS_BH(net, idev, IPSTATS_MIB_IN, skb->len);
 
 	if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL ||
 	    !idev || unlikely(idev->cnf.disable_ipv6)) {
@@ -91,7 +91,7 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
 	 * arrived via the sending interface (ethX), because of the
 	 * nature of scoping architecture. --yoshfuji
 	 */
-	IP6CB(skb)->iif = skb->dst ? ip6_dst_idev(skb->dst)->dev->ifindex : dev->ifindex;
+	IP6CB(skb)->iif = skb_dst(skb) ? ip6_dst_idev(skb_dst(skb))->dev->ifindex : dev->ifindex;
 
 	if (unlikely(!pskb_may_pull(skb, sizeof(*hdr))))
 		goto err;
@@ -161,7 +161,7 @@ static int ip6_input_finish(struct sk_buff *skb)
 	int nexthdr, raw;
 	u8 hash;
 	struct inet6_dev *idev;
-	struct net *net = dev_net(skb->dst->dev);
+	struct net *net = dev_net(skb_dst(skb)->dev);
 
 	/*
 	 *	Parse extension headers
@@ -169,7 +169,7 @@ static int ip6_input_finish(struct sk_buff *skb)
 
 	rcu_read_lock();
 resubmit:
-	idev = ip6_dst_idev(skb->dst);
+	idev = ip6_dst_idev(skb_dst(skb));
 	if (!pskb_pull(skb, skb_transport_offset(skb)))
 		goto discard;
 	nhoff = IP6CB(skb)->nhoff;
@@ -242,8 +242,9 @@ int ip6_mc_input(struct sk_buff *skb)
 	struct ipv6hdr *hdr;
 	int deliver;
 
-	IP6_INC_STATS_BH(dev_net(skb->dst->dev),
-			 ip6_dst_idev(skb->dst), IPSTATS_MIB_INMCASTPKTS);
+	IP6_UPD_PO_STATS_BH(dev_net(skb_dst(skb)->dev),
+			 ip6_dst_idev(skb_dst(skb)), IPSTATS_MIB_INMCAST,
+			 skb->len);
 
 	hdr = ipv6_hdr(skb);
 	deliver = ipv6_chk_mcast_addr(skb->dev, &hdr->daddr, NULL);
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 9fb49c3b518a..7c76e3d18215 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -78,7 +78,7 @@ int __ip6_local_out(struct sk_buff *skb)
 		len = 0;
 	ipv6_hdr(skb)->payload_len = htons(len);
 
-	return nf_hook(PF_INET6, NF_INET_LOCAL_OUT, skb, NULL, skb->dst->dev,
+	return nf_hook(PF_INET6, NF_INET_LOCAL_OUT, skb, NULL, skb_dst(skb)->dev,
 		       dst_output);
 }
 
@@ -96,7 +96,7 @@ EXPORT_SYMBOL_GPL(ip6_local_out);
 
 static int ip6_output_finish(struct sk_buff *skb)
 {
-	struct dst_entry *dst = skb->dst;
+	struct dst_entry *dst = skb_dst(skb);
 
 	if (dst->hh)
 		return neigh_hh_output(dst->hh, skb);
@@ -117,7 +117,7 @@ static int ip6_dev_loopback_xmit(struct sk_buff *newskb)
 	__skb_pull(newskb, skb_network_offset(newskb));
 	newskb->pkt_type = PACKET_LOOPBACK;
 	newskb->ip_summed = CHECKSUM_UNNECESSARY;
-	WARN_ON(!newskb->dst);
+	WARN_ON(!skb_dst(newskb));
 
 	netif_rx(newskb);
 	return 0;
@@ -126,7 +126,7 @@ static int ip6_dev_loopback_xmit(struct sk_buff *newskb)
 
 static int ip6_output2(struct sk_buff *skb)
 {
-	struct dst_entry *dst = skb->dst;
+	struct dst_entry *dst = skb_dst(skb);
 	struct net_device *dev = dst->dev;
 
 	skb->protocol = htons(ETH_P_IPV6);
@@ -134,7 +134,7 @@ static int ip6_output2(struct sk_buff *skb)
 
 	if (ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr)) {
 		struct ipv6_pinfo* np = skb->sk ? inet6_sk(skb->sk) : NULL;
-		struct inet6_dev *idev = ip6_dst_idev(skb->dst);
+		struct inet6_dev *idev = ip6_dst_idev(skb_dst(skb));
 
 		if (!(dev->flags & IFF_LOOPBACK) && (!np || np->mc_loop) &&
 		    ((mroute6_socket(dev_net(dev)) &&
@@ -159,7 +159,8 @@ static int ip6_output2(struct sk_buff *skb)
 			}
 		}
 
-		IP6_INC_STATS(dev_net(dev), idev, IPSTATS_MIB_OUTMCASTPKTS);
+		IP6_UPD_PO_STATS(dev_net(dev), idev, IPSTATS_MIB_OUTMCAST,
+				skb->len);
 	}
 
 	return NF_HOOK(PF_INET6, NF_INET_POST_ROUTING, skb, NULL, skb->dev,
@@ -171,21 +172,21 @@ static inline int ip6_skb_dst_mtu(struct sk_buff *skb)
 	struct ipv6_pinfo *np = skb->sk ? inet6_sk(skb->sk) : NULL;
 
 	return (np && np->pmtudisc == IPV6_PMTUDISC_PROBE) ?
-	       skb->dst->dev->mtu : dst_mtu(skb->dst);
+	       skb_dst(skb)->dev->mtu : dst_mtu(skb_dst(skb));
 }
 
 int ip6_output(struct sk_buff *skb)
 {
-	struct inet6_dev *idev = ip6_dst_idev(skb->dst);
+	struct inet6_dev *idev = ip6_dst_idev(skb_dst(skb));
 	if (unlikely(idev->cnf.disable_ipv6)) {
-		IP6_INC_STATS(dev_net(skb->dst->dev), idev,
+		IP6_INC_STATS(dev_net(skb_dst(skb)->dev), idev,
 			      IPSTATS_MIB_OUTDISCARDS);
 		kfree_skb(skb);
 		return 0;
 	}
 
 	if ((skb->len > ip6_skb_dst_mtu(skb) && !skb_is_gso(skb)) ||
-				dst_allfrag(skb->dst))
+				dst_allfrag(skb_dst(skb)))
 		return ip6_fragment(skb, ip6_output2);
 	else
 		return ip6_output2(skb);
@@ -201,7 +202,7 @@ int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl,
 	struct net *net = sock_net(sk);
 	struct ipv6_pinfo *np = inet6_sk(sk);
 	struct in6_addr *first_hop = &fl->fl6_dst;
-	struct dst_entry *dst = skb->dst;
+	struct dst_entry *dst = skb_dst(skb);
 	struct ipv6hdr *hdr;
 	u8  proto = fl->proto;
 	int seg_len = skb->len;
@@ -221,7 +222,7 @@ int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl,
 		if (skb_headroom(skb) < head_room) {
 			struct sk_buff *skb2 = skb_realloc_headroom(skb, head_room);
 			if (skb2 == NULL) {
-				IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
+				IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
 					      IPSTATS_MIB_OUTDISCARDS);
 				kfree_skb(skb);
 				return -ENOBUFS;
@@ -275,8 +276,8 @@ int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl,
 
 	mtu = dst_mtu(dst);
 	if ((skb->len <= mtu) || skb->local_df || skb_is_gso(skb)) {
-		IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
-			      IPSTATS_MIB_OUTREQUESTS);
+		IP6_UPD_PO_STATS(net, ip6_dst_idev(skb_dst(skb)),
+			      IPSTATS_MIB_OUT, skb->len);
 		return NF_HOOK(PF_INET6, NF_INET_LOCAL_OUT, skb, NULL, dst->dev,
 				dst_output);
 	}
@@ -285,7 +286,7 @@ int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl,
 		printk(KERN_DEBUG "IPv6: sending pkt_too_big to self\n");
 	skb->dev = dst->dev;
 	icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu, skb->dev);
-	IP6_INC_STATS(net, ip6_dst_idev(skb->dst), IPSTATS_MIB_FRAGFAILS);
+	IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)), IPSTATS_MIB_FRAGFAILS);
 	kfree_skb(skb);
 	return -EMSGSIZE;
 }
@@ -415,7 +416,7 @@ static inline int ip6_forward_finish(struct sk_buff *skb)
 
 int ip6_forward(struct sk_buff *skb)
 {
-	struct dst_entry *dst = skb->dst;
+	struct dst_entry *dst = skb_dst(skb);
 	struct ipv6hdr *hdr = ipv6_hdr(skb);
 	struct inet6_skb_parm *opt = IP6CB(skb);
 	struct net *net = dev_net(dst->dev);
@@ -484,7 +485,7 @@ int ip6_forward(struct sk_buff *skb)
 		IP6_INC_STATS(net, ip6_dst_idev(dst), IPSTATS_MIB_INDISCARDS);
 		goto drop;
 	}
-	dst = skb->dst;
+	dst = skb_dst(skb);
 
 	/* IPv6 specs say nothing about it, but it is clear that we cannot
 	   send redirects to source routed frames.
@@ -565,8 +566,8 @@ static void ip6_copy_metadata(struct sk_buff *to, struct sk_buff *from)
 	to->pkt_type = from->pkt_type;
 	to->priority = from->priority;
 	to->protocol = from->protocol;
-	dst_release(to->dst);
-	to->dst = dst_clone(from->dst);
+	skb_dst_drop(to);
+	skb_dst_set(to, dst_clone(skb_dst(from)));
 	to->dev = from->dev;
 	to->mark = from->mark;
 
@@ -623,7 +624,7 @@ int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr)
 static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 {
 	struct sk_buff *frag;
-	struct rt6_info *rt = (struct rt6_info*)skb->dst;
+	struct rt6_info *rt = (struct rt6_info*)skb_dst(skb);
 	struct ipv6_pinfo *np = skb->sk ? inet6_sk(skb->sk) : NULL;
 	struct ipv6hdr *tmp_hdr;
 	struct frag_hdr *fh;
@@ -631,7 +632,7 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 	__be32 frag_id = 0;
 	int ptr, offset = 0, err=0;
 	u8 *prevhdr, nexthdr = 0;
-	struct net *net = dev_net(skb->dst->dev);
+	struct net *net = dev_net(skb_dst(skb)->dev);
 
 	hlen = ip6_find_1stfragopt(skb, &prevhdr);
 	nexthdr = *prevhdr;
@@ -643,9 +644,9 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 	 * check should be redundant, but it's free.)
 	 */
 	if (!skb->local_df) {
-		skb->dev = skb->dst->dev;
+		skb->dev = skb_dst(skb)->dev;
 		icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu, skb->dev);
-		IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
+		IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
 			      IPSTATS_MIB_FRAGFAILS);
 		kfree_skb(skb);
 		return -EMSGSIZE;
@@ -657,7 +658,7 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 	}
 	mtu -= hlen + sizeof(struct frag_hdr);
 
-	if (skb_shinfo(skb)->frag_list) {
+	if (skb_has_frags(skb)) {
 		int first_len = skb_pagelen(skb);
 		int truesizes = 0;
 
@@ -666,7 +667,7 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 		    skb_cloned(skb))
 			goto slow_path;
 
-		for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next) {
+		skb_walk_frags(skb, frag) {
 			/* Correct geometry. */
 			if (frag->len > mtu ||
 			    ((frag->len & 7) && frag->next) ||
@@ -679,7 +680,6 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 
 			BUG_ON(frag->sk);
 			if (skb->sk) {
-				sock_hold(skb->sk);
 				frag->sk = skb->sk;
 				frag->destructor = sock_wfree;
 				truesizes += frag->truesize;
@@ -689,13 +689,13 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 		err = 0;
 		offset = 0;
 		frag = skb_shinfo(skb)->frag_list;
-		skb_shinfo(skb)->frag_list = NULL;
+		skb_frag_list_init(skb);
 		/* BUILD HEADER */
 
 		*prevhdr = NEXTHDR_FRAGMENT;
 		tmp_hdr = kmemdup(skb_network_header(skb), hlen, GFP_ATOMIC);
 		if (!tmp_hdr) {
-			IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
+			IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
 				      IPSTATS_MIB_FRAGFAILS);
 			return -ENOMEM;
 		}
@@ -808,7 +808,7 @@ slow_path:
 
 		if ((frag = alloc_skb(len+hlen+sizeof(struct frag_hdr)+LL_ALLOCATED_SPACE(rt->u.dst.dev), GFP_ATOMIC)) == NULL) {
 			NETDEBUG(KERN_INFO "IPv6: frag: no memory for new fragment!\n");
-			IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
+			IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
 				      IPSTATS_MIB_FRAGFAILS);
 			err = -ENOMEM;
 			goto fail;
@@ -872,16 +872,16 @@ slow_path:
 		if (err)
 			goto fail;
 
-		IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
+		IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
 			      IPSTATS_MIB_FRAGCREATES);
 	}
-	IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
+	IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
 		      IPSTATS_MIB_FRAGOKS);
 	kfree_skb(skb);
 	return err;
 
 fail:
-	IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
+	IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
 		      IPSTATS_MIB_FRAGFAILS);
 	kfree_skb(skb);
 	return err;
@@ -1515,10 +1515,10 @@ int ip6_push_pending_frames(struct sock *sk)
 	skb->priority = sk->sk_priority;
 	skb->mark = sk->sk_mark;
 
-	skb->dst = dst_clone(&rt->u.dst);
-	IP6_INC_STATS(net, rt->rt6i_idev, IPSTATS_MIB_OUTREQUESTS);
+	skb_dst_set(skb, dst_clone(&rt->u.dst));
+	IP6_UPD_PO_STATS(net, rt->rt6i_idev, IPSTATS_MIB_OUT, skb->len);
 	if (proto == IPPROTO_ICMPV6) {
-		struct inet6_dev *idev = ip6_dst_idev(skb->dst);
+		struct inet6_dev *idev = ip6_dst_idev(skb_dst(skb));
 
 		ICMP6MSGOUT_INC_STATS_BH(net, idev, icmp6_hdr(skb)->icmp6_type);
 		ICMP6_INC_STATS_BH(net, idev, ICMP6_MIB_OUTMSGS);
@@ -1544,8 +1544,8 @@ void ip6_flush_pending_frames(struct sock *sk)
 	struct sk_buff *skb;
 
 	while ((skb = __skb_dequeue_tail(&sk->sk_write_queue)) != NULL) {
-		if (skb->dst)
-			IP6_INC_STATS(sock_net(sk), ip6_dst_idev(skb->dst),
+		if (skb_dst(skb))
+			IP6_INC_STATS(sock_net(sk), ip6_dst_idev(skb_dst(skb)),
 				      IPSTATS_MIB_OUTDISCARDS);
 		kfree_skb(skb);
 	}
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index d994c55a5b16..51f410e7775a 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -394,13 +394,13 @@ parse_tlv_tnl_enc_lim(struct sk_buff *skb, __u8 * raw)
 
 static int
 ip6_tnl_err(struct sk_buff *skb, __u8 ipproto, struct inet6_skb_parm *opt,
-	    int *type, int *code, int *msg, __u32 *info, int offset)
+	    u8 *type, u8 *code, int *msg, __u32 *info, int offset)
 {
 	struct ipv6hdr *ipv6h = (struct ipv6hdr *) skb->data;
 	struct ip6_tnl *t;
 	int rel_msg = 0;
-	int rel_type = ICMPV6_DEST_UNREACH;
-	int rel_code = ICMPV6_ADDR_UNREACH;
+	u8 rel_type = ICMPV6_DEST_UNREACH;
+	u8 rel_code = ICMPV6_ADDR_UNREACH;
 	__u32 rel_info = 0;
 	__u16 len;
 	int err = -ENOENT;
@@ -488,11 +488,11 @@ out:
 
 static int
 ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-	   int type, int code, int offset, __be32 info)
+	   u8 type, u8 code, int offset, __be32 info)
 {
 	int rel_msg = 0;
-	int rel_type = type;
-	int rel_code = code;
+	u8 rel_type = type;
+	u8 rel_code = code;
 	__u32 rel_info = ntohl(info);
 	int err;
 	struct sk_buff *skb2;
@@ -532,8 +532,8 @@ ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 	if (!skb2)
 		return 0;
 
-	dst_release(skb2->dst);
-	skb2->dst = NULL;
+	skb_dst_drop(skb2);
+
 	skb_pull(skb2, offset);
 	skb_reset_network_header(skb2);
 	eiph = ip_hdr(skb2);
@@ -560,21 +560,21 @@ ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 			ip_rt_put(rt);
 			goto out;
 		}
-		skb2->dst = (struct dst_entry *)rt;
+		skb_dst_set(skb2, (struct dst_entry *)rt);
 	} else {
 		ip_rt_put(rt);
 		if (ip_route_input(skb2, eiph->daddr, eiph->saddr, eiph->tos,
 				   skb2->dev) ||
-		    skb2->dst->dev->type != ARPHRD_TUNNEL)
+		    skb_dst(skb2)->dev->type != ARPHRD_TUNNEL)
 			goto out;
 	}
 
 	/* change mtu on this route */
 	if (rel_type == ICMP_DEST_UNREACH && rel_code == ICMP_FRAG_NEEDED) {
-		if (rel_info > dst_mtu(skb2->dst))
+		if (rel_info > dst_mtu(skb_dst(skb2)))
 			goto out;
 
-		skb2->dst->ops->update_pmtu(skb2->dst, rel_info);
+		skb_dst(skb2)->ops->update_pmtu(skb_dst(skb2), rel_info);
 	}
 
 	icmp_send(skb2, rel_type, rel_code, htonl(rel_info));
@@ -586,11 +586,11 @@ out:
 
 static int
 ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-	   int type, int code, int offset, __be32 info)
+	   u8 type, u8 code, int offset, __be32 info)
 {
 	int rel_msg = 0;
-	int rel_type = type;
-	int rel_code = code;
+	u8 rel_type = type;
+	u8 rel_code = code;
 	__u32 rel_info = ntohl(info);
 	int err;
 
@@ -606,8 +606,7 @@ ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 		if (!skb2)
 			return 0;
 
-		dst_release(skb2->dst);
-		skb2->dst = NULL;
+		skb_dst_drop(skb2);
 		skb_pull(skb2, offset);
 		skb_reset_network_header(skb2);
 
@@ -720,8 +719,7 @@ static int ip6_tnl_rcv(struct sk_buff *skb, __u16 protocol,
 		skb->pkt_type = PACKET_HOST;
 		memset(skb->cb, 0, sizeof(struct inet6_skb_parm));
 		skb->dev = t->dev;
-		dst_release(skb->dst);
-		skb->dst = NULL;
+		skb_dst_drop(skb);
 		nf_reset(skb);
 
 		dscp_ecn_decapsulate(t, ipv6h, skb);
@@ -885,8 +883,8 @@ static int ip6_tnl_xmit2(struct sk_buff *skb,
 	}
 	if (mtu < IPV6_MIN_MTU)
 		mtu = IPV6_MIN_MTU;
-	if (skb->dst)
-		skb->dst->ops->update_pmtu(skb->dst, mtu);
+	if (skb_dst(skb))
+		skb_dst(skb)->ops->update_pmtu(skb_dst(skb), mtu);
 	if (skb->len > mtu) {
 		*pmtu = mtu;
 		err = -EMSGSIZE;
@@ -910,8 +908,8 @@ static int ip6_tnl_xmit2(struct sk_buff *skb,
 		kfree_skb(skb);
 		skb = new_skb;
 	}
-	dst_release(skb->dst);
-	skb->dst = dst_clone(dst);
+	skb_dst_drop(skb);
+	skb_dst_set(skb, dst_clone(dst));
 
 	skb->transport_header = skb->network_header;
 
@@ -1100,8 +1098,8 @@ static void ip6_tnl_link_config(struct ip6_tnl *t)
 	struct ip6_tnl_parm *p = &t->parms;
 	struct flowi *fl = &t->fl;
 
-	memcpy(&dev->dev_addr, &p->laddr, sizeof(struct in6_addr));
-	memcpy(&dev->broadcast, &p->raddr, sizeof(struct in6_addr));
+	memcpy(dev->dev_addr, &p->laddr, sizeof(struct in6_addr));
+	memcpy(dev->broadcast, &p->raddr, sizeof(struct in6_addr));
 
 	/* Set up flowi template */
 	ipv6_addr_copy(&fl->fl6_src, &p->laddr);
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 228be551e9c1..c769f155c698 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -398,10 +398,9 @@ static int pim6_rcv(struct sk_buff *skb)
 	skb->protocol = htons(ETH_P_IPV6);
 	skb->ip_summed = 0;
 	skb->pkt_type = PACKET_HOST;
-	dst_release(skb->dst);
+	skb_dst_drop(skb);
 	reg_dev->stats.rx_bytes += skb->len;
 	reg_dev->stats.rx_packets++;
-	skb->dst = NULL;
 	nf_reset(skb);
 	netif_rx(skb);
 	dev_put(reg_dev);
@@ -442,6 +441,7 @@ static void reg_vif_setup(struct net_device *dev)
 	dev->flags		= IFF_NOARP;
 	dev->netdev_ops		= &reg_vif_netdev_ops;
 	dev->destructor		= free_netdev;
+	dev->features		|= NETIF_F_NETNS_LOCAL;
 }
 
 static struct net_device *ip6mr_reg_vif(struct net *net)
@@ -849,7 +849,7 @@ static int ip6mr_cache_report(struct net *net, struct sk_buff *pkt, mifi_t mifi,
 	ipv6_addr_copy(&msg->im6_src, &ipv6_hdr(pkt)->saddr);
 	ipv6_addr_copy(&msg->im6_dst, &ipv6_hdr(pkt)->daddr);
 
-	skb->dst = dst_clone(pkt->dst);
+	skb_dst_set(skb, dst_clone(skb_dst(pkt)));
 	skb->ip_summed = CHECKSUM_UNNECESSARY;
 	}
 
@@ -1078,7 +1078,18 @@ int __init ip6_mr_init(void)
 	err = register_netdevice_notifier(&ip6_mr_notifier);
 	if (err)
 		goto reg_notif_fail;
+#ifdef CONFIG_IPV6_PIMSM_V2
+	if (inet6_add_protocol(&pim6_protocol, IPPROTO_PIM) < 0) {
+		printk(KERN_ERR "ip6_mr_init: can't add PIM protocol\n");
+		err = -EAGAIN;
+		goto add_proto_fail;
+	}
+#endif
 	return 0;
+#ifdef CONFIG_IPV6_PIMSM_V2
+add_proto_fail:
+	unregister_netdevice_notifier(&ip6_mr_notifier);
+#endif
 reg_notif_fail:
 	del_timer(&ipmr_expire_timer);
 	unregister_pernet_subsys(&ip6mr_net_ops);
@@ -1364,14 +1375,6 @@ int ip6_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, int
 		if (v != net->ipv6.mroute_do_pim) {
 			net->ipv6.mroute_do_pim = v;
 			net->ipv6.mroute_do_assert = v;
-			if (net->ipv6.mroute_do_pim)
-				ret = inet6_add_protocol(&pim6_protocol,
-							 IPPROTO_PIM);
-			else
-				ret = inet6_del_protocol(&pim6_protocol,
-							 IPPROTO_PIM);
-			if (ret < 0)
-				ret = -EAGAIN;
 		}
 		rtnl_unlock();
 		return ret;
@@ -1487,7 +1490,7 @@ int ip6mr_ioctl(struct sock *sk, int cmd, void __user *arg)
 
 static inline int ip6mr_forward2_finish(struct sk_buff *skb)
 {
-	IP6_INC_STATS_BH(dev_net(skb->dst->dev), ip6_dst_idev(skb->dst),
+	IP6_INC_STATS_BH(dev_net(skb_dst(skb)->dev), ip6_dst_idev(skb_dst(skb)),
 			 IPSTATS_MIB_OUTFORWDATAGRAMS);
 	return dst_output(skb);
 }
@@ -1532,8 +1535,8 @@ static int ip6mr_forward2(struct sk_buff *skb, struct mfc6_cache *c, int vifi)
 	if (!dst)
 		goto out_free;
 
-	dst_release(skb->dst);
-	skb->dst = dst;
+	skb_dst_drop(skb);
+	skb_dst_set(skb, dst);
 
 	/*
 	 * RFC1584 teaches, that DVMRP/PIM router must deliver packets locally
@@ -1722,7 +1725,7 @@ int ip6mr_get_route(struct net *net,
 {
 	int err;
 	struct mfc6_cache *cache;
-	struct rt6_info *rt = (struct rt6_info *)skb->dst;
+	struct rt6_info *rt = (struct rt6_info *)skb_dst(skb);
 
 	read_lock(&mrt_lock);
 	cache = ip6mr_cache_find(net, &rt->rt6i_src.addr, &rt->rt6i_dst.addr);
diff --git a/net/ipv6/ipcomp6.c b/net/ipv6/ipcomp6.c
index 3a0b3be7ece5..79c172f1ff01 100644
--- a/net/ipv6/ipcomp6.c
+++ b/net/ipv6/ipcomp6.c
@@ -51,7 +51,7 @@
 #include <linux/mutex.h>
 
 static void ipcomp6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-				int type, int code, int offset, __be32 info)
+				u8 type, u8 code, int offset, __be32 info)
 {
 	__be32 spi;
 	struct ipv6hdr *iph = (struct ipv6hdr*)skb->data;
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index a51fb33e6864..4b264ed40a8c 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1448,8 +1448,10 @@ static void mld_sendpack(struct sk_buff *skb)
 	struct net *net = dev_net(skb->dev);
 	int err;
 	struct flowi fl;
+	struct dst_entry *dst;
+
+	IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_OUT, skb->len);
 
-	IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTREQUESTS);
 	payload_len = (skb->tail - skb->network_header) - sizeof(*pip6);
 	mldlen = skb->tail - skb->transport_header;
 	pip6->payload_len = htons(payload_len);
@@ -1458,9 +1460,9 @@ static void mld_sendpack(struct sk_buff *skb)
 		IPPROTO_ICMPV6, csum_partial(skb_transport_header(skb),
 					     mldlen, 0));
 
-	skb->dst = icmp6_dst_alloc(skb->dev, NULL, &ipv6_hdr(skb)->daddr);
+	dst = icmp6_dst_alloc(skb->dev, NULL, &ipv6_hdr(skb)->daddr);
 
-	if (!skb->dst) {
+	if (!dst) {
 		err = -ENOMEM;
 		goto err_out;
 	}
@@ -1469,17 +1471,20 @@ static void mld_sendpack(struct sk_buff *skb)
 			 &ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
 			 skb->dev->ifindex);
 
-	err = xfrm_lookup(net, &skb->dst, &fl, NULL, 0);
+	err = xfrm_lookup(net, &dst, &fl, NULL, 0);
+	skb_dst_set(skb, dst);
 	if (err)
 		goto err_out;
 
+	payload_len = skb->len;
+
 	err = NF_HOOK(PF_INET6, NF_INET_LOCAL_OUT, skb, NULL, skb->dev,
 		      dst_output);
 out:
 	if (!err) {
 		ICMP6MSGOUT_INC_STATS_BH(net, idev, ICMPV6_MLD2_REPORT);
 		ICMP6_INC_STATS_BH(net, idev, ICMP6_MIB_OUTMSGS);
-		IP6_INC_STATS_BH(net, idev, IPSTATS_MIB_OUTMCASTPKTS);
+		IP6_UPD_PO_STATS_BH(net, idev, IPSTATS_MIB_OUTMCAST, payload_len);
 	} else
 		IP6_INC_STATS_BH(net, idev, IPSTATS_MIB_OUTDISCARDS);
 
@@ -1772,11 +1777,8 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
 		     IPV6_TLV_ROUTERALERT, 2, 0, 0,
 		     IPV6_TLV_PADN, 0 };
 	struct flowi fl;
+	struct dst_entry *dst;
 
-	rcu_read_lock();
-	IP6_INC_STATS(net, __in6_dev_get(dev),
-		      IPSTATS_MIB_OUTREQUESTS);
-	rcu_read_unlock();
 	if (type == ICMPV6_MGM_REDUCTION)
 		snd_addr = &in6addr_linklocal_allrouters;
 	else
@@ -1786,6 +1788,11 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
 	payload_len = len + sizeof(ra);
 	full_len = sizeof(struct ipv6hdr) + payload_len;
 
+	rcu_read_lock();
+	IP6_UPD_PO_STATS(net, __in6_dev_get(dev),
+		      IPSTATS_MIB_OUT, full_len);
+	rcu_read_unlock();
+
 	skb = sock_alloc_send_skb(sk, LL_ALLOCATED_SPACE(dev) + full_len, 1, &err);
 
 	if (skb == NULL) {
@@ -1824,8 +1831,8 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
 
 	idev = in6_dev_get(skb->dev);
 
-	skb->dst = icmp6_dst_alloc(skb->dev, NULL, &ipv6_hdr(skb)->daddr);
-	if (!skb->dst) {
+	dst = icmp6_dst_alloc(skb->dev, NULL, &ipv6_hdr(skb)->daddr);
+	if (!dst) {
 		err = -ENOMEM;
 		goto err_out;
 	}
@@ -1834,17 +1841,18 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
 			 &ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
 			 skb->dev->ifindex);
 
-	err = xfrm_lookup(net, &skb->dst, &fl, NULL, 0);
+	err = xfrm_lookup(net, &dst, &fl, NULL, 0);
 	if (err)
 		goto err_out;
 
+	skb_dst_set(skb, dst);
 	err = NF_HOOK(PF_INET6, NF_INET_LOCAL_OUT, skb, NULL, skb->dev,
 		      dst_output);
 out:
 	if (!err) {
 		ICMP6MSGOUT_INC_STATS(net, idev, type);
 		ICMP6_INC_STATS(net, idev, ICMP6_MIB_OUTMSGS);
-		IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTMCASTPKTS);
+		IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_OUTMCAST, full_len);
 	} else
 		IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTDISCARDS);
 
diff --git a/net/ipv6/mip6.c b/net/ipv6/mip6.c
index f995e19c87a9..f797e8c6f3b3 100644
--- a/net/ipv6/mip6.c
+++ b/net/ipv6/mip6.c
@@ -54,7 +54,7 @@ static inline void *mip6_padn(__u8 *data, __u8 padlen)
 	return data + padlen;
 }
 
-static inline void mip6_param_prob(struct sk_buff *skb, int code, int pos)
+static inline void mip6_param_prob(struct sk_buff *skb, u8 code, int pos)
 {
 	icmpv6_send(skb, ICMPV6_PARAMPROB, code, pos, skb->dev);
 }
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 9f061d1adbc2..9eb68e92cc18 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -465,8 +465,8 @@ struct sk_buff *ndisc_build_skb(struct net_device *dev,
 				  1, &err);
 	if (!skb) {
 		ND_PRINTK0(KERN_ERR
-			   "ICMPv6 ND: %s() failed to allocate an skb.\n",
-			   __func__);
+			   "ICMPv6 ND: %s() failed to allocate an skb, err=%d.\n",
+			   __func__, err);
 		return NULL;
 	}
 
@@ -530,10 +530,10 @@ void ndisc_send_skb(struct sk_buff *skb,
 		return;
 	}
 
-	skb->dst = dst;
+	skb_dst_set(skb, dst);
 
 	idev = in6_dev_get(dst->dev);
-	IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTREQUESTS);
+	IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_OUT, skb->len);
 
 	err = NF_HOOK(PF_INET6, NF_INET_LOCAL_OUT, skb, NULL, dst->dev,
 		      dst_output);
@@ -658,6 +658,7 @@ void ndisc_send_rs(struct net_device *dev, const struct in6_addr *saddr,
 		     &icmp6h, NULL,
 		     send_sllao ? ND_OPT_SOURCE_LL_ADDR : 0);
 }
+EXPORT_SYMBOL(ndisc_send_rs);
 
 
 static void ndisc_error_report(struct neighbour *neigh, struct sk_buff *skb)
@@ -1561,8 +1562,8 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh,
 				   1, &err);
 	if (buff == NULL) {
 		ND_PRINTK0(KERN_ERR
-			   "ICMPv6 Redirect: %s() failed to allocate an skb.\n",
-			   __func__);
+			   "ICMPv6 Redirect: %s() failed to allocate an skb, err=%d.\n",
+			   __func__, err);
 		goto release;
 	}
 
@@ -1611,9 +1612,9 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh,
 					     len, IPPROTO_ICMPV6,
 					     csum_partial(icmph, len, 0));
 
-	buff->dst = dst;
+	skb_dst_set(buff, dst);
 	idev = in6_dev_get(dst->dev);
-	IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTREQUESTS);
+	IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_OUT, skb->len);
 	err = NF_HOOK(PF_INET6, NF_INET_LOCAL_OUT, buff, NULL, dst->dev,
 		      dst_output);
 	if (!err) {
diff --git a/net/ipv6/netfilter.c b/net/ipv6/netfilter.c
index 834cea69fb53..d5ed92b14346 100644
--- a/net/ipv6/netfilter.c
+++ b/net/ipv6/netfilter.c
@@ -12,7 +12,7 @@
 
 int ip6_route_me_harder(struct sk_buff *skb)
 {
-	struct net *net = dev_net(skb->dst->dev);
+	struct net *net = dev_net(skb_dst(skb)->dev);
 	struct ipv6hdr *iph = ipv6_hdr(skb);
 	struct dst_entry *dst;
 	struct flowi fl = {
@@ -28,9 +28,15 @@ int ip6_route_me_harder(struct sk_buff *skb)
 
 #ifdef CONFIG_XFRM
 	if (!(IP6CB(skb)->flags & IP6SKB_XFRM_TRANSFORMED) &&
-	    xfrm_decode_session(skb, &fl, AF_INET6) == 0)
-		if (xfrm_lookup(net, &skb->dst, &fl, skb->sk, 0))
+	    xfrm_decode_session(skb, &fl, AF_INET6) == 0) {
+		struct dst_entry *dst2 = skb_dst(skb);
+
+		if (xfrm_lookup(net, &dst2, &fl, skb->sk, 0)) {
+			skb_dst_set(skb, NULL);
 			return -1;
+		}
+		skb_dst_set(skb, dst2);
+	}
 #endif
 
 	if (dst->error) {
@@ -41,9 +47,9 @@ int ip6_route_me_harder(struct sk_buff *skb)
 	}
 
 	/* Drop old route. */
-	dst_release(skb->dst);
+	skb_dst_drop(skb);
 
-	skb->dst = dst;
+	skb_dst_set(skb, dst);
 	return 0;
 }
 EXPORT_SYMBOL(ip6_route_me_harder);
diff --git a/net/ipv6/netfilter/ip6_queue.c b/net/ipv6/netfilter/ip6_queue.c
index b693f841aeb4..1cf3f0c6a959 100644
--- a/net/ipv6/netfilter/ip6_queue.c
+++ b/net/ipv6/netfilter/ip6_queue.c
@@ -598,7 +598,7 @@ static int __init ip6_queue_init(void)
 #ifdef CONFIG_SYSCTL
 	ipq_sysctl_header = register_sysctl_paths(net_ipv6_ctl_path, ipq_table);
 #endif
-	status = nf_register_queue_handler(PF_INET6, &nfqh);
+	status = nf_register_queue_handler(NFPROTO_IPV6, &nfqh);
 	if (status < 0) {
 		printk(KERN_ERR "ip6_queue: failed to register queue handler\n");
 		goto cleanup_sysctl;
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index 219e165aea10..ced1f2c0cb65 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -270,8 +270,8 @@ static struct nf_loginfo trace_loginfo = {
 /* Mildly perf critical (only if packet tracing is on) */
 static inline int
 get_chainname_rulenum(struct ip6t_entry *s, struct ip6t_entry *e,
-		      char *hookname, char **chainname,
-		      char **comment, unsigned int *rulenum)
+		      const char *hookname, const char **chainname,
+		      const char **comment, unsigned int *rulenum)
 {
 	struct ip6t_standard_target *t = (void *)ip6t_get_target(s);
 
@@ -289,8 +289,8 @@ get_chainname_rulenum(struct ip6t_entry *s, struct ip6t_entry *e,
 		   && unconditional(&s->ipv6)) {
 			/* Tail of chains: STANDARD target (return/policy) */
 			*comment = *chainname == hookname
-				? (char *)comments[NF_IP6_TRACE_COMMENT_POLICY]
-				: (char *)comments[NF_IP6_TRACE_COMMENT_RETURN];
+				? comments[NF_IP6_TRACE_COMMENT_POLICY]
+				: comments[NF_IP6_TRACE_COMMENT_RETURN];
 		}
 		return 1;
 	} else
@@ -309,14 +309,14 @@ static void trace_packet(struct sk_buff *skb,
 {
 	void *table_base;
 	const struct ip6t_entry *root;
-	char *hookname, *chainname, *comment;
+	const char *hookname, *chainname, *comment;
 	unsigned int rulenum = 0;
 
-	table_base = (void *)private->entries[smp_processor_id()];
+	table_base = private->entries[smp_processor_id()];
 	root = get_entry(table_base, private->hook_entry[hook]);
 
-	hookname = chainname = (char *)hooknames[hook];
-	comment = (char *)comments[NF_IP6_TRACE_COMMENT_RULE];
+	hookname = chainname = hooknames[hook];
+	comment = comments[NF_IP6_TRACE_COMMENT_RULE];
 
 	IP6T_ENTRY_ITERATE(root,
 			   private->size - private->hook_entry[hook],
@@ -329,6 +329,12 @@ static void trace_packet(struct sk_buff *skb,
 }
 #endif
 
+static inline __pure struct ip6t_entry *
+ip6t_next_entry(const struct ip6t_entry *entry)
+{
+	return (void *)entry + entry->next_offset;
+}
+
 /* Returns one of the generic firewall policies, like NF_ACCEPT. */
 unsigned int
 ip6t_do_table(struct sk_buff *skb,
@@ -337,6 +343,8 @@ ip6t_do_table(struct sk_buff *skb,
 	      const struct net_device *out,
 	      struct xt_table *table)
 {
+#define tb_comefrom ((struct ip6t_entry *)table_base)->comefrom
+
 	static const char nulldevname[IFNAMSIZ] __attribute__((aligned(sizeof(long))));
 	bool hotdrop = false;
 	/* Initializing verdict to NF_DROP keeps gcc happy. */
@@ -361,7 +369,7 @@ ip6t_do_table(struct sk_buff *skb,
 	mtpar.in      = tgpar.in  = in;
 	mtpar.out     = tgpar.out = out;
 	mtpar.family  = tgpar.family = NFPROTO_IPV6;
-	tgpar.hooknum = hook;
+	mtpar.hooknum = tgpar.hooknum = hook;
 
 	IP_NF_ASSERT(table->valid_hooks & (1 << hook));
 
@@ -375,96 +383,86 @@ ip6t_do_table(struct sk_buff *skb,
 	back = get_entry(table_base, private->underflow[hook]);
 
 	do {
+		struct ip6t_entry_target *t;
+
 		IP_NF_ASSERT(e);
 		IP_NF_ASSERT(back);
-		if (ip6_packet_match(skb, indev, outdev, &e->ipv6,
-			&mtpar.thoff, &mtpar.fragoff, &hotdrop)) {
-			struct ip6t_entry_target *t;
-
-			if (IP6T_MATCH_ITERATE(e, do_match, skb, &mtpar) != 0)
-				goto no_match;
+		if (!ip6_packet_match(skb, indev, outdev, &e->ipv6,
+		    &mtpar.thoff, &mtpar.fragoff, &hotdrop) ||
+		    IP6T_MATCH_ITERATE(e, do_match, skb, &mtpar) != 0) {
+			e = ip6t_next_entry(e);
+			continue;
+		}
 
-			ADD_COUNTER(e->counters,
-				    ntohs(ipv6_hdr(skb)->payload_len) +
-				    sizeof(struct ipv6hdr), 1);
+		ADD_COUNTER(e->counters,
+			    ntohs(ipv6_hdr(skb)->payload_len) +
+			    sizeof(struct ipv6hdr), 1);
 
-			t = ip6t_get_target(e);
-			IP_NF_ASSERT(t->u.kernel.target);
+		t = ip6t_get_target(e);
+		IP_NF_ASSERT(t->u.kernel.target);
 
 #if defined(CONFIG_NETFILTER_XT_TARGET_TRACE) || \
     defined(CONFIG_NETFILTER_XT_TARGET_TRACE_MODULE)
-			/* The packet is traced: log it */
-			if (unlikely(skb->nf_trace))
-				trace_packet(skb, hook, in, out,
-					     table->name, private, e);
+		/* The packet is traced: log it */
+		if (unlikely(skb->nf_trace))
+			trace_packet(skb, hook, in, out,
+				     table->name, private, e);
 #endif
-			/* Standard target? */
-			if (!t->u.kernel.target->target) {
-				int v;
-
-				v = ((struct ip6t_standard_target *)t)->verdict;
-				if (v < 0) {
-					/* Pop from stack? */
-					if (v != IP6T_RETURN) {
-						verdict = (unsigned)(-v) - 1;
-						break;
-					}
-					e = back;
-					back = get_entry(table_base,
-							 back->comefrom);
-					continue;
-				}
-				if (table_base + v != (void *)e + e->next_offset
-				    && !(e->ipv6.flags & IP6T_F_GOTO)) {
-					/* Save old back ptr in next entry */
-					struct ip6t_entry *next
-						= (void *)e + e->next_offset;
-					next->comefrom
-						= (void *)back - table_base;
-					/* set back pointer to next entry */
-					back = next;
+		/* Standard target? */
+		if (!t->u.kernel.target->target) {
+			int v;
+
+			v = ((struct ip6t_standard_target *)t)->verdict;
+			if (v < 0) {
+				/* Pop from stack? */
+				if (v != IP6T_RETURN) {
+					verdict = (unsigned)(-v) - 1;
+					break;
 				}
+				e = back;
+				back = get_entry(table_base, back->comefrom);
+				continue;
+			}
+			if (table_base + v != ip6t_next_entry(e)
+			    && !(e->ipv6.flags & IP6T_F_GOTO)) {
+				/* Save old back ptr in next entry */
+				struct ip6t_entry *next = ip6t_next_entry(e);
+				next->comefrom = (void *)back - table_base;
+				/* set back pointer to next entry */
+				back = next;
+			}
 
-				e = get_entry(table_base, v);
-			} else {
-				/* Targets which reenter must return
-				   abs. verdicts */
-				tgpar.target   = t->u.kernel.target;
-				tgpar.targinfo = t->data;
+			e = get_entry(table_base, v);
+			continue;
+		}
 
-#ifdef CONFIG_NETFILTER_DEBUG
-				((struct ip6t_entry *)table_base)->comefrom
-					= 0xeeeeeeec;
-#endif
-				verdict = t->u.kernel.target->target(skb,
-								     &tgpar);
+		/* Targets which reenter must return
+		   abs. verdicts */
+		tgpar.target   = t->u.kernel.target;
+		tgpar.targinfo = t->data;
 
 #ifdef CONFIG_NETFILTER_DEBUG
-				if (((struct ip6t_entry *)table_base)->comefrom
-				    != 0xeeeeeeec
-				    && verdict == IP6T_CONTINUE) {
-					printk("Target %s reentered!\n",
-					       t->u.kernel.target->name);
-					verdict = NF_DROP;
-				}
-				((struct ip6t_entry *)table_base)->comefrom
-					= 0x57acc001;
+		tb_comefrom = 0xeeeeeeec;
 #endif
-				if (verdict == IP6T_CONTINUE)
-					e = (void *)e + e->next_offset;
-				else
-					/* Verdict */
-					break;
-			}
-		} else {
+		verdict = t->u.kernel.target->target(skb, &tgpar);
 
-		no_match:
-			e = (void *)e + e->next_offset;
+#ifdef CONFIG_NETFILTER_DEBUG
+		if (tb_comefrom != 0xeeeeeeec && verdict == IP6T_CONTINUE) {
+			printk("Target %s reentered!\n",
+			       t->u.kernel.target->name);
+			verdict = NF_DROP;
 		}
+		tb_comefrom = 0x57acc001;
+#endif
+		if (verdict == IP6T_CONTINUE)
+			e = ip6t_next_entry(e);
+		else
+			/* Verdict */
+			break;
 	} while (!hotdrop);
 
 #ifdef CONFIG_NETFILTER_DEBUG
-	((struct ip6t_entry *)table_base)->comefrom = NETFILTER_LINK_POISON;
+	tb_comefrom = NETFILTER_LINK_POISON;
 #endif
 	xt_info_rdunlock_bh();
 
@@ -475,6 +473,8 @@ ip6t_do_table(struct sk_buff *skb,
 		return NF_DROP;
 	else return verdict;
 #endif
+
+#undef tb_comefrom
 }
 
 /* Figures out from what hook each rule can be called: returns 0 if
@@ -2191,7 +2191,7 @@ static bool icmp6_checkentry(const struct xt_mtchk_param *par)
 static struct xt_target ip6t_standard_target __read_mostly = {
 	.name		= IP6T_STANDARD_TARGET,
 	.targetsize	= sizeof(int),
-	.family		= AF_INET6,
+	.family		= NFPROTO_IPV6,
 #ifdef CONFIG_COMPAT
 	.compatsize	= sizeof(compat_int_t),
 	.compat_from_user = compat_standard_from_user,
@@ -2203,7 +2203,7 @@ static struct xt_target ip6t_error_target __read_mostly = {
 	.name		= IP6T_ERROR_TARGET,
 	.target		= ip6t_error,
 	.targetsize	= IP6T_FUNCTION_MAXNAMELEN,
-	.family		= AF_INET6,
+	.family		= NFPROTO_IPV6,
 };
 
 static struct nf_sockopt_ops ip6t_sockopts = {
@@ -2229,17 +2229,17 @@ static struct xt_match icmp6_matchstruct __read_mostly = {
 	.matchsize	= sizeof(struct ip6t_icmp),
 	.checkentry	= icmp6_checkentry,
 	.proto		= IPPROTO_ICMPV6,
-	.family		= AF_INET6,
+	.family		= NFPROTO_IPV6,
 };
 
 static int __net_init ip6_tables_net_init(struct net *net)
 {
-	return xt_proto_init(net, AF_INET6);
+	return xt_proto_init(net, NFPROTO_IPV6);
 }
 
 static void __net_exit ip6_tables_net_exit(struct net *net)
 {
-	xt_proto_fini(net, AF_INET6);
+	xt_proto_fini(net, NFPROTO_IPV6);
 }
 
 static struct pernet_operations ip6_tables_net_ops = {
diff --git a/net/ipv6/netfilter/ip6t_REJECT.c b/net/ipv6/netfilter/ip6t_REJECT.c
index 5a2d0a41694a..5a7f00cd15ce 100644
--- a/net/ipv6/netfilter/ip6t_REJECT.c
+++ b/net/ipv6/netfilter/ip6t_REJECT.c
@@ -112,7 +112,7 @@ static void send_reset(struct net *net, struct sk_buff *oldskb)
 		return;
 	}
 
-	nskb->dst = dst;
+	skb_dst_set(nskb, dst);
 
 	skb_reserve(nskb, hh_len + dst->header_len);
 
diff --git a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
index 9903227bf37c..642dcb127bab 100644
--- a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
@@ -95,18 +95,10 @@ static int icmpv6_packet(struct nf_conn *ct,
 		       u_int8_t pf,
 		       unsigned int hooknum)
 {
-	/* Try to delete connection immediately after all replies:
-	   won't actually vanish as we still have skb, and del_timer
-	   means this will only run once even if count hits zero twice
-	   (theoretically possible with SMP) */
-	if (CTINFO2DIR(ctinfo) == IP_CT_DIR_REPLY) {
-		if (atomic_dec_and_test(&ct->proto.icmp.count))
-			nf_ct_kill_acct(ct, ctinfo, skb);
-	} else {
-		atomic_inc(&ct->proto.icmp.count);
-		nf_conntrack_event_cache(IPCT_PROTOINFO_VOLATILE, ct);
-		nf_ct_refresh_acct(ct, ctinfo, skb, nf_ct_icmpv6_timeout);
-	}
+	/* Do not immediately delete the connection after the first
+	   successful reply to avoid excessive conntrackd traffic
+	   and also to handle correctly ICMP echo reply duplicates. */
+	nf_ct_refresh_acct(ct, ctinfo, skb, nf_ct_icmpv6_timeout);
 
 	return NF_ACCEPT;
 }
@@ -132,7 +124,6 @@ static bool icmpv6_new(struct nf_conn *ct, const struct sk_buff *skb,
 				      type + 128);
 		return false;
 	}
-	atomic_set(&ct->proto.icmp.count, 0);
 	return true;
 }
 
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 058a5e4a60c3..f3aba255ad9f 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -409,7 +409,7 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
 	/* If the first fragment is fragmented itself, we split
 	 * it to two chunks: the first with data and paged part
 	 * and the second, holding only fragments. */
-	if (skb_shinfo(head)->frag_list) {
+	if (skb_has_frags(head)) {
 		struct sk_buff *clone;
 		int i, plen = 0;
 
@@ -420,7 +420,7 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
 		clone->next = head->next;
 		head->next = clone;
 		skb_shinfo(clone)->frag_list = skb_shinfo(head)->frag_list;
-		skb_shinfo(head)->frag_list = NULL;
+		skb_frag_list_init(head);
 		for (i=0; i<skb_shinfo(head)->nr_frags; i++)
 			plen += skb_shinfo(head)->frags[i].size;
 		clone->len = clone->data_len = head->data_len - plen;
diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c
index 97c17fdd6f75..590ddefb7ffc 100644
--- a/net/ipv6/proc.c
+++ b/net/ipv6/proc.c
@@ -61,7 +61,7 @@ static const struct file_operations sockstat6_seq_fops = {
 
 static struct snmp_mib snmp6_ipstats_list[] = {
 /* ipv6 mib according to RFC 2465 */
-	SNMP_MIB_ITEM("Ip6InReceives", IPSTATS_MIB_INRECEIVES),
+	SNMP_MIB_ITEM("Ip6InReceives", IPSTATS_MIB_INPKTS),
 	SNMP_MIB_ITEM("Ip6InHdrErrors", IPSTATS_MIB_INHDRERRORS),
 	SNMP_MIB_ITEM("Ip6InTooBigErrors", IPSTATS_MIB_INTOOBIGERRORS),
 	SNMP_MIB_ITEM("Ip6InNoRoutes", IPSTATS_MIB_INNOROUTES),
@@ -71,7 +71,7 @@ static struct snmp_mib snmp6_ipstats_list[] = {
 	SNMP_MIB_ITEM("Ip6InDiscards", IPSTATS_MIB_INDISCARDS),
 	SNMP_MIB_ITEM("Ip6InDelivers", IPSTATS_MIB_INDELIVERS),
 	SNMP_MIB_ITEM("Ip6OutForwDatagrams", IPSTATS_MIB_OUTFORWDATAGRAMS),
-	SNMP_MIB_ITEM("Ip6OutRequests", IPSTATS_MIB_OUTREQUESTS),
+	SNMP_MIB_ITEM("Ip6OutRequests", IPSTATS_MIB_OUTPKTS),
 	SNMP_MIB_ITEM("Ip6OutDiscards", IPSTATS_MIB_OUTDISCARDS),
 	SNMP_MIB_ITEM("Ip6OutNoRoutes", IPSTATS_MIB_OUTNOROUTES),
 	SNMP_MIB_ITEM("Ip6ReasmTimeout", IPSTATS_MIB_REASMTIMEOUT),
@@ -83,6 +83,12 @@ static struct snmp_mib snmp6_ipstats_list[] = {
 	SNMP_MIB_ITEM("Ip6FragCreates", IPSTATS_MIB_FRAGCREATES),
 	SNMP_MIB_ITEM("Ip6InMcastPkts", IPSTATS_MIB_INMCASTPKTS),
 	SNMP_MIB_ITEM("Ip6OutMcastPkts", IPSTATS_MIB_OUTMCASTPKTS),
+	SNMP_MIB_ITEM("Ip6InOctets", IPSTATS_MIB_INOCTETS),
+	SNMP_MIB_ITEM("Ip6OutOctets", IPSTATS_MIB_OUTOCTETS),
+	SNMP_MIB_ITEM("Ip6InMcastOctets", IPSTATS_MIB_INMCASTOCTETS),
+	SNMP_MIB_ITEM("Ip6OutMcastOctets", IPSTATS_MIB_OUTMCASTOCTETS),
+	SNMP_MIB_ITEM("Ip6InBcastOctets", IPSTATS_MIB_INBCASTOCTETS),
+	SNMP_MIB_ITEM("Ip6OutBcastOctets", IPSTATS_MIB_OUTBCASTOCTETS),
 	SNMP_MIB_SENTINEL
 };
 
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 61f6827e5906..d6c3c1c34b2d 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -310,7 +310,7 @@ out:
 
 static void rawv6_err(struct sock *sk, struct sk_buff *skb,
 	       struct inet6_skb_parm *opt,
-	       int type, int code, int offset, __be32 info)
+	       u8 type, u8 code, int offset, __be32 info)
 {
 	struct inet_sock *inet = inet_sk(sk);
 	struct ipv6_pinfo *np = inet6_sk(sk);
@@ -343,7 +343,7 @@ static void rawv6_err(struct sock *sk, struct sk_buff *skb,
 }
 
 void raw6_icmp_error(struct sk_buff *skb, int nexthdr,
-		int type, int code, int inner_offset, __be32 info)
+		u8 type, u8 code, int inner_offset, __be32 info)
 {
 	struct sock *sk;
 	int hash;
@@ -625,7 +625,7 @@ static int rawv6_send_hdrinc(struct sock *sk, void *from, int length,
 
 	skb->priority = sk->sk_priority;
 	skb->mark = sk->sk_mark;
-	skb->dst = dst_clone(&rt->u.dst);
+	skb_dst_set(skb, dst_clone(&rt->u.dst));
 
 	skb_put(skb, length);
 	skb_reset_network_header(skb);
@@ -638,7 +638,7 @@ static int rawv6_send_hdrinc(struct sock *sk, void *from, int length,
 	if (err)
 		goto error_fault;
 
-	IP6_INC_STATS(sock_net(sk), rt->rt6i_idev, IPSTATS_MIB_OUTREQUESTS);
+	IP6_UPD_PO_STATS(sock_net(sk), rt->rt6i_idev, IPSTATS_MIB_OUT, skb->len);
 	err = NF_HOOK(PF_INET6, NF_INET_LOCAL_OUT, skb, NULL, rt->u.dst.dev,
 		      dst_output);
 	if (err > 0)
@@ -1130,7 +1130,8 @@ static int rawv6_ioctl(struct sock *sk, int cmd, unsigned long arg)
 	switch(cmd) {
 		case SIOCOUTQ:
 		{
-			int amount = atomic_read(&sk->sk_wmem_alloc);
+			int amount = sk_wmem_alloc_get(sk);
+
 			return put_user(amount, (int __user *)arg);
 		}
 		case SIOCINQ:
@@ -1236,8 +1237,8 @@ static void raw6_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
 		   dest->s6_addr32[0], dest->s6_addr32[1],
 		   dest->s6_addr32[2], dest->s6_addr32[3], destp,
 		   sp->sk_state,
-		   atomic_read(&sp->sk_wmem_alloc),
-		   atomic_read(&sp->sk_rmem_alloc),
+		   sk_wmem_alloc_get(sp),
+		   sk_rmem_alloc_get(sp),
 		   0, 0L, 0,
 		   sock_i_uid(sp), 0,
 		   sock_i_ino(sp),
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index e9ac7a12f595..2642a41a8535 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -267,7 +267,7 @@ static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
 	struct sk_buff *prev, *next;
 	struct net_device *dev;
 	int offset, end;
-	struct net *net = dev_net(skb->dst->dev);
+	struct net *net = dev_net(skb_dst(skb)->dev);
 
 	if (fq->q.last_in & INET_FRAG_COMPLETE)
 		goto err;
@@ -277,7 +277,7 @@ static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
 			((u8 *)(fhdr + 1) - (u8 *)(ipv6_hdr(skb) + 1)));
 
 	if ((unsigned int)end > IPV6_MAXPLEN) {
-		IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst),
+		IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
 				 IPSTATS_MIB_INHDRERRORS);
 		icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
 				  ((u8 *)&fhdr->frag_off -
@@ -310,7 +310,7 @@ static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
 			/* RFC2460 says always send parameter problem in
 			 * this case. -DaveM
 			 */
-			IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst),
+			IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
 					 IPSTATS_MIB_INHDRERRORS);
 			icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
 					  offsetof(struct ipv6hdr, payload_len));
@@ -434,7 +434,7 @@ static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
 	return -1;
 
 err:
-	IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
+	IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
 		      IPSTATS_MIB_REASMFAILS);
 	kfree_skb(skb);
 	return -1;
@@ -494,7 +494,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *prev,
 	/* If the first fragment is fragmented itself, we split
 	 * it to two chunks: the first with data and paged part
 	 * and the second, holding only fragments. */
-	if (skb_shinfo(head)->frag_list) {
+	if (skb_has_frags(head)) {
 		struct sk_buff *clone;
 		int i, plen = 0;
 
@@ -503,7 +503,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *prev,
 		clone->next = head->next;
 		head->next = clone;
 		skb_shinfo(clone)->frag_list = skb_shinfo(head)->frag_list;
-		skb_shinfo(head)->frag_list = NULL;
+		skb_frag_list_init(head);
 		for (i=0; i<skb_shinfo(head)->nr_frags; i++)
 			plen += skb_shinfo(head)->frags[i].size;
 		clone->len = clone->data_len = head->data_len - plen;
@@ -576,9 +576,9 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
 	struct frag_hdr *fhdr;
 	struct frag_queue *fq;
 	struct ipv6hdr *hdr = ipv6_hdr(skb);
-	struct net *net = dev_net(skb->dst->dev);
+	struct net *net = dev_net(skb_dst(skb)->dev);
 
-	IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst), IPSTATS_MIB_REASMREQDS);
+	IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)), IPSTATS_MIB_REASMREQDS);
 
 	/* Jumbo payload inhibits frag. header */
 	if (hdr->payload_len==0)
@@ -595,17 +595,17 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
 		/* It is not a fragmented frame */
 		skb->transport_header += sizeof(struct frag_hdr);
 		IP6_INC_STATS_BH(net,
-				 ip6_dst_idev(skb->dst), IPSTATS_MIB_REASMOKS);
+				 ip6_dst_idev(skb_dst(skb)), IPSTATS_MIB_REASMOKS);
 
 		IP6CB(skb)->nhoff = (u8 *)fhdr - skb_network_header(skb);
 		return 1;
 	}
 
 	if (atomic_read(&net->ipv6.frags.mem) > net->ipv6.frags.high_thresh)
-		ip6_evictor(net, ip6_dst_idev(skb->dst));
+		ip6_evictor(net, ip6_dst_idev(skb_dst(skb)));
 
 	if ((fq = fq_find(net, fhdr->identification, &hdr->saddr, &hdr->daddr,
-			  ip6_dst_idev(skb->dst))) != NULL) {
+			  ip6_dst_idev(skb_dst(skb)))) != NULL) {
 		int ret;
 
 		spin_lock(&fq->q.lock);
@@ -617,12 +617,12 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
 		return ret;
 	}
 
-	IP6_INC_STATS_BH(net, ip6_dst_idev(skb->dst), IPSTATS_MIB_REASMFAILS);
+	IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)), IPSTATS_MIB_REASMFAILS);
 	kfree_skb(skb);
 	return -1;
 
 fail_hdr:
-	IP6_INC_STATS(net, ip6_dst_idev(skb->dst), IPSTATS_MIB_INHDRERRORS);
+	IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)), IPSTATS_MIB_INHDRERRORS);
 	icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, skb_network_header_len(skb));
 	return -1;
 }
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 032a5ec391c5..1473ee0a1f51 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -800,7 +800,7 @@ void ip6_route_input(struct sk_buff *skb)
 	if (rt6_need_strict(&iph->daddr) && skb->dev->type != ARPHRD_PIMREG)
 		flags |= RT6_LOOKUP_F_IFACE;
 
-	skb->dst = fib6_rule_lookup(net, &fl, flags, ip6_pol_route_input);
+	skb_dst_set(skb, fib6_rule_lookup(net, &fl, flags, ip6_pol_route_input));
 }
 
 static struct rt6_info *ip6_pol_route_output(struct net *net, struct fib6_table *table,
@@ -911,7 +911,7 @@ static void ip6_link_failure(struct sk_buff *skb)
 
 	icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_ADDR_UNREACH, 0, skb->dev);
 
-	rt = (struct rt6_info *) skb->dst;
+	rt = (struct rt6_info *) skb_dst(skb);
 	if (rt) {
 		if (rt->rt6i_flags&RTF_CACHE) {
 			dst_set_expires(&rt->u.dst, 0);
@@ -1865,10 +1865,10 @@ int ipv6_route_ioctl(struct net *net, unsigned int cmd, void __user *arg)
  *	Drop the packet on the floor
  */
 
-static int ip6_pkt_drop(struct sk_buff *skb, int code, int ipstats_mib_noroutes)
+static int ip6_pkt_drop(struct sk_buff *skb, u8 code, int ipstats_mib_noroutes)
 {
 	int type;
-	struct dst_entry *dst = skb->dst;
+	struct dst_entry *dst = skb_dst(skb);
 	switch (ipstats_mib_noroutes) {
 	case IPSTATS_MIB_INNOROUTES:
 		type = ipv6_addr_type(&ipv6_hdr(skb)->daddr);
@@ -1895,7 +1895,7 @@ static int ip6_pkt_discard(struct sk_buff *skb)
 
 static int ip6_pkt_discard_out(struct sk_buff *skb)
 {
-	skb->dev = skb->dst->dev;
+	skb->dev = skb_dst(skb)->dev;
 	return ip6_pkt_drop(skb, ICMPV6_NOROUTE, IPSTATS_MIB_OUTNOROUTES);
 }
 
@@ -1908,7 +1908,7 @@ static int ip6_pkt_prohibit(struct sk_buff *skb)
 
 static int ip6_pkt_prohibit_out(struct sk_buff *skb)
 {
-	skb->dev = skb->dst->dev;
+	skb->dev = skb_dst(skb)->dev;
 	return ip6_pkt_drop(skb, ICMPV6_ADM_PROHIBITED, IPSTATS_MIB_OUTNOROUTES);
 }
 
@@ -2366,7 +2366,7 @@ static int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
 	skb_reserve(skb, MAX_HEADER + sizeof(struct ipv6hdr));
 
 	rt = (struct rt6_info*) ip6_route_output(net, NULL, &fl);
-	skb->dst = &rt->u.dst;
+	skb_dst_set(skb, &rt->u.dst);
 
 	err = rt6_fill_node(net, skb, rt, &fl.fl6_dst, &fl.fl6_src, iif,
 			    RTM_NEWROUTE, NETLINK_CB(in_skb).pid,
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 664ab82e03b2..68e52308e552 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -15,6 +15,7 @@
  * Roger Venning <r.venning@telstra.com>:	6to4 support
  * Nate Thompson <nate@thebog.net>:		6to4 support
  * Fred Templin <fred.l.templin@boeing.com>:	isatap support
+ * Sascha Hlusiak <mail@saschahlusiak.de>:	stateless autoconf for isatap
  */
 
 #include <linux/module.h>
@@ -80,7 +81,7 @@ struct sit_net {
 static DEFINE_RWLOCK(ipip6_lock);
 
 static struct ip_tunnel * ipip6_tunnel_lookup(struct net *net,
-		__be32 remote, __be32 local)
+		struct net_device *dev, __be32 remote, __be32 local)
 {
 	unsigned h0 = HASH(remote);
 	unsigned h1 = HASH(local);
@@ -89,18 +90,25 @@ static struct ip_tunnel * ipip6_tunnel_lookup(struct net *net,
 
 	for (t = sitn->tunnels_r_l[h0^h1]; t; t = t->next) {
 		if (local == t->parms.iph.saddr &&
-		    remote == t->parms.iph.daddr && (t->dev->flags&IFF_UP))
+		    remote == t->parms.iph.daddr &&
+		    (!dev || !t->parms.link || dev->iflink == t->parms.link) &&
+		    (t->dev->flags & IFF_UP))
 			return t;
 	}
 	for (t = sitn->tunnels_r[h0]; t; t = t->next) {
-		if (remote == t->parms.iph.daddr && (t->dev->flags&IFF_UP))
+		if (remote == t->parms.iph.daddr &&
+		    (!dev || !t->parms.link || dev->iflink == t->parms.link) &&
+		    (t->dev->flags & IFF_UP))
 			return t;
 	}
 	for (t = sitn->tunnels_l[h1]; t; t = t->next) {
-		if (local == t->parms.iph.saddr && (t->dev->flags&IFF_UP))
+		if (local == t->parms.iph.saddr &&
+		    (!dev || !t->parms.link || dev->iflink == t->parms.link) &&
+		    (t->dev->flags & IFF_UP))
 			return t;
 	}
-	if ((t = sitn->tunnels_wc[0]) != NULL && (t->dev->flags&IFF_UP))
+	t = sitn->tunnels_wc[0];
+	if ((t != NULL) && (t->dev->flags & IFF_UP))
 		return t;
 	return NULL;
 }
@@ -165,8 +173,14 @@ static struct ip_tunnel * ipip6_tunnel_locate(struct net *net,
 	struct sit_net *sitn = net_generic(net, sit_net_id);
 
 	for (tp = __ipip6_bucket(sitn, parms); (t = *tp) != NULL; tp = &t->next) {
-		if (local == t->parms.iph.saddr && remote == t->parms.iph.daddr)
-			return t;
+		if (local == t->parms.iph.saddr &&
+		    remote == t->parms.iph.daddr &&
+		    parms->link == t->parms.link) {
+			if (create)
+				return NULL;
+			else
+				return t;
+		}
 	}
 	if (!create)
 		goto failed;
@@ -209,6 +223,44 @@ failed:
 	return NULL;
 }
 
+static void ipip6_tunnel_rs_timer(unsigned long data)
+{
+	struct ip_tunnel_prl_entry *p = (struct ip_tunnel_prl_entry *) data;
+	struct inet6_dev *ifp;
+	struct inet6_ifaddr *addr;
+
+	spin_lock(&p->lock);
+	ifp = __in6_dev_get(p->tunnel->dev);
+
+	read_lock_bh(&ifp->lock);
+	for (addr = ifp->addr_list; addr; addr = addr->if_next) {
+		struct in6_addr rtr;
+
+		if (!(ipv6_addr_type(&addr->addr) & IPV6_ADDR_LINKLOCAL))
+			continue;
+
+		/* Send RS to guessed linklocal address of router
+		 *
+		 * Better: send to ff02::2 encapsuled in unicast directly
+		 * to router-v4 instead of guessing the v6 address.
+		 *
+		 * Cisco/Windows seem to not set the u/l bit correctly,
+		 * so we won't guess right.
+		 */
+		ipv6_addr_set(&rtr,  htonl(0xFE800000), 0, 0, 0);
+		if (!__ipv6_isatap_ifid(rtr.s6_addr + 8,
+					p->addr)) {
+			ndisc_send_rs(p->tunnel->dev, &addr->addr, &rtr);
+		}
+	}
+	read_unlock_bh(&ifp->lock);
+
+	mod_timer(&p->rs_timer, jiffies + HZ * p->rs_delay);
+	spin_unlock(&p->lock);
+
+	return;
+}
+
 static struct ip_tunnel_prl_entry *
 __ipip6_tunnel_locate_prl(struct ip_tunnel *t, __be32 addr)
 {
@@ -267,6 +319,7 @@ static int ipip6_tunnel_get_prl(struct ip_tunnel *t,
 			continue;
 		kp[c].addr = prl->addr;
 		kp[c].flags = prl->flags;
+		kp[c].rs_delay = prl->rs_delay;
 		c++;
 		if (kprl.addr != htonl(INADDR_ANY))
 			break;
@@ -316,11 +369,23 @@ ipip6_tunnel_add_prl(struct ip_tunnel *t, struct ip_tunnel_prl *a, int chg)
 	}
 
 	p->next = t->prl;
+	p->tunnel = t;
 	t->prl = p;
 	t->prl_count++;
+
+	spin_lock_init(&p->lock);
+	setup_timer(&p->rs_timer, ipip6_tunnel_rs_timer, (unsigned long) p);
 update:
 	p->addr = a->addr;
 	p->flags = a->flags;
+	p->rs_delay = a->rs_delay;
+	if (p->rs_delay == 0)
+		p->rs_delay = IPTUNNEL_RS_DEFAULT_DELAY;
+	spin_lock(&p->lock);
+	del_timer(&p->rs_timer);
+	if (p->flags & PRL_DEFAULT)
+		mod_timer(&p->rs_timer, jiffies + 1);
+	spin_unlock(&p->lock);
 out:
 	write_unlock(&ipip6_lock);
 	return err;
@@ -339,6 +404,9 @@ ipip6_tunnel_del_prl(struct ip_tunnel *t, struct ip_tunnel_prl *a)
 			if ((*p)->addr == a->addr) {
 				x = *p;
 				*p = x->next;
+				spin_lock(&x->lock);
+				del_timer(&x->rs_timer);
+				spin_unlock(&x->lock);
 				kfree(x);
 				t->prl_count--;
 				goto out;
@@ -349,13 +417,16 @@ ipip6_tunnel_del_prl(struct ip_tunnel *t, struct ip_tunnel_prl *a)
 		while (t->prl) {
 			x = t->prl;
 			t->prl = t->prl->next;
+			spin_lock(&x->lock);
+			del_timer(&x->rs_timer);
+			spin_unlock(&x->lock);
 			kfree(x);
 			t->prl_count--;
 		}
 	}
 out:
 	write_unlock(&ipip6_lock);
-	return 0;
+	return err;
 }
 
 static int
@@ -446,7 +517,10 @@ static int ipip6_err(struct sk_buff *skb, u32 info)
 	err = -ENOENT;
 
 	read_lock(&ipip6_lock);
-	t = ipip6_tunnel_lookup(dev_net(skb->dev), iph->daddr, iph->saddr);
+	t = ipip6_tunnel_lookup(dev_net(skb->dev),
+				skb->dev,
+				iph->daddr,
+				iph->saddr);
 	if (t == NULL || t->parms.iph.daddr == 0)
 		goto out;
 
@@ -481,8 +555,9 @@ static int ipip6_rcv(struct sk_buff *skb)
 	iph = ip_hdr(skb);
 
 	read_lock(&ipip6_lock);
-	if ((tunnel = ipip6_tunnel_lookup(dev_net(skb->dev),
-					iph->saddr, iph->daddr)) != NULL) {
+	tunnel = ipip6_tunnel_lookup(dev_net(skb->dev), skb->dev,
+				     iph->saddr, iph->daddr);
+	if (tunnel != NULL) {
 		secpath_reset(skb);
 		skb->mac_header = skb->network_header;
 		skb_reset_network_header(skb);
@@ -500,8 +575,7 @@ static int ipip6_rcv(struct sk_buff *skb)
 		tunnel->dev->stats.rx_packets++;
 		tunnel->dev->stats.rx_bytes += skb->len;
 		skb->dev = tunnel->dev;
-		dst_release(skb->dst);
-		skb->dst = NULL;
+		skb_dst_drop(skb);
 		nf_reset(skb);
 		ipip6_ecn_decapsulate(iph, skb);
 		netif_rx(skb);
@@ -563,8 +637,8 @@ static int ipip6_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (dev->priv_flags & IFF_ISATAP) {
 		struct neighbour *neigh = NULL;
 
-		if (skb->dst)
-			neigh = skb->dst->neighbour;
+		if (skb_dst(skb))
+			neigh = skb_dst(skb)->neighbour;
 
 		if (neigh == NULL) {
 			if (net_ratelimit())
@@ -588,8 +662,8 @@ static int ipip6_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (!dst) {
 		struct neighbour *neigh = NULL;
 
-		if (skb->dst)
-			neigh = skb->dst->neighbour;
+		if (skb_dst(skb))
+			neigh = skb_dst(skb)->neighbour;
 
 		if (neigh == NULL) {
 			if (net_ratelimit())
@@ -639,7 +713,7 @@ static int ipip6_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (tiph->frag_off)
 		mtu = dst_mtu(&rt->u.dst) - sizeof(struct iphdr);
 	else
-		mtu = skb->dst ? dst_mtu(skb->dst) : dev->mtu;
+		mtu = skb_dst(skb) ? dst_mtu(skb_dst(skb)) : dev->mtu;
 
 	if (mtu < 68) {
 		stats->collisions++;
@@ -648,8 +722,8 @@ static int ipip6_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 	}
 	if (mtu < IPV6_MIN_MTU)
 		mtu = IPV6_MIN_MTU;
-	if (tunnel->parms.iph.daddr && skb->dst)
-		skb->dst->ops->update_pmtu(skb->dst, mtu);
+	if (tunnel->parms.iph.daddr && skb_dst(skb))
+		skb_dst(skb)->ops->update_pmtu(skb_dst(skb), mtu);
 
 	if (skb->len > mtu) {
 		icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu, dev);
@@ -693,8 +767,8 @@ static int ipip6_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 	skb_reset_network_header(skb);
 	memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
 	IPCB(skb)->flags = 0;
-	dst_release(skb->dst);
-	skb->dst = &rt->u.dst;
+	skb_dst_drop(skb);
+	skb_dst_set(skb, &rt->u.dst);
 
 	/*
 	 *	Push down and install the IPIP header.
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index 711175e0571f..8c2513982b61 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -131,7 +131,7 @@ __u32 cookie_v6_init_sequence(struct sock *sk, struct sk_buff *skb, __u16 *mssp)
 	int mssind;
 	const __u16 mss = *mssp;
 
-	tcp_sk(sk)->last_synq_overflow = jiffies;
+	tcp_synq_overflow(sk);
 
 	for (mssind = 0; mss > msstab[mssind + 1]; mssind++)
 		;
@@ -175,7 +175,7 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
 	if (!sysctl_tcp_syncookies || !th->ack)
 		goto out;
 
-	if (time_after(jiffies, tp->last_synq_overflow + TCP_TIMEOUT_INIT) ||
+	if (tcp_synq_no_recent_overflow(sk) ||
 		(mss = cookie_check(skb, cookie)) == 0) {
 		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_SYNCOOKIESFAILED);
 		goto out;
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 4b5aa1854260..58810c65b635 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -317,7 +317,7 @@ failure:
 }
 
 static void tcp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-		int type, int code, int offset, __be32 info)
+		u8 type, u8 code, int offset, __be32 info)
 {
 	struct ipv6hdr *hdr = (struct ipv6hdr*)skb->data;
 	const struct tcphdr *th = (struct tcphdr *)(skb->data+offset);
@@ -941,9 +941,10 @@ static int tcp_v6_gso_send_check(struct sk_buff *skb)
 	return 0;
 }
 
-struct sk_buff **tcp6_gro_receive(struct sk_buff **head, struct sk_buff *skb)
+static struct sk_buff **tcp6_gro_receive(struct sk_buff **head,
+					 struct sk_buff *skb)
 {
-	struct ipv6hdr *iph = ipv6_hdr(skb);
+	struct ipv6hdr *iph = skb_gro_network_header(skb);
 
 	switch (skb->ip_summed) {
 	case CHECKSUM_COMPLETE:
@@ -961,9 +962,8 @@ struct sk_buff **tcp6_gro_receive(struct sk_buff **head, struct sk_buff *skb)
 
 	return tcp_gro_receive(head, skb);
 }
-EXPORT_SYMBOL(tcp6_gro_receive);
 
-int tcp6_gro_complete(struct sk_buff *skb)
+static int tcp6_gro_complete(struct sk_buff *skb)
 {
 	struct ipv6hdr *iph = ipv6_hdr(skb);
 	struct tcphdr *th = tcp_hdr(skb);
@@ -974,7 +974,6 @@ int tcp6_gro_complete(struct sk_buff *skb)
 
 	return tcp_gro_complete(skb);
 }
-EXPORT_SYMBOL(tcp6_gro_complete);
 
 static void tcp_v6_send_response(struct sk_buff *skb, u32 seq, u32 ack, u32 win,
 				 u32 ts, struct tcp_md5sig_key *key, int rst)
@@ -982,9 +981,10 @@ static void tcp_v6_send_response(struct sk_buff *skb, u32 seq, u32 ack, u32 win,
 	struct tcphdr *th = tcp_hdr(skb), *t1;
 	struct sk_buff *buff;
 	struct flowi fl;
-	struct net *net = dev_net(skb->dst->dev);
+	struct net *net = dev_net(skb_dst(skb)->dev);
 	struct sock *ctl_sk = net->ipv6.tcp_sk;
 	unsigned int tot_len = sizeof(struct tcphdr);
+	struct dst_entry *dst;
 	__be32 *topt;
 
 	if (ts)
@@ -1053,8 +1053,9 @@ static void tcp_v6_send_response(struct sk_buff *skb, u32 seq, u32 ack, u32 win,
 	 * Underlying function will use this to retrieve the network
 	 * namespace
 	 */
-	if (!ip6_dst_lookup(ctl_sk, &buff->dst, &fl)) {
-		if (xfrm_lookup(net, &buff->dst, &fl, NULL, 0) >= 0) {
+	if (!ip6_dst_lookup(ctl_sk, &dst, &fl)) {
+		if (xfrm_lookup(net, &dst, &fl, NULL, 0) >= 0) {
+			skb_dst_set(buff, dst);
 			ip6_xmit(ctl_sk, buff, &fl, NULL, 0);
 			TCP_INC_STATS_BH(net, TCP_MIB_OUTSEGS);
 			if (rst)
diff --git a/net/ipv6/tunnel6.c b/net/ipv6/tunnel6.c
index 669f280989c3..633ad789effc 100644
--- a/net/ipv6/tunnel6.c
+++ b/net/ipv6/tunnel6.c
@@ -124,7 +124,7 @@ drop:
 }
 
 static void tunnel6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-			int type, int code, int offset, __be32 info)
+			u8 type, u8 code, int offset, __be32 info)
 {
 	struct xfrm6_tunnel *handler;
 
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 8905712cfbb8..33b59bd92c4d 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -177,10 +177,9 @@ static struct sock *__udp6_lib_lookup_skb(struct sk_buff *skb,
 
 	if (unlikely(sk = skb_steal_sock(skb)))
 		return sk;
-	else
-		return __udp6_lib_lookup(dev_net(skb->dst->dev), &iph->saddr, sport,
-					 &iph->daddr, dport, inet6_iif(skb),
-					 udptable);
+	return __udp6_lib_lookup(dev_net(skb_dst(skb)->dev), &iph->saddr, sport,
+				 &iph->daddr, dport, inet6_iif(skb),
+				 udptable);
 }
 
 /*
@@ -313,7 +312,7 @@ csum_copy_err:
 }
 
 void __udp6_lib_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-		    int type, int code, int offset, __be32 info,
+		    u8 type, u8 code, int offset, __be32 info,
 		    struct udp_table *udptable)
 {
 	struct ipv6_pinfo *np;
@@ -347,8 +346,8 @@ out:
 }
 
 static __inline__ void udpv6_err(struct sk_buff *skb,
-				 struct inet6_skb_parm *opt, int type,
-				 int code, int offset, __be32 info     )
+				 struct inet6_skb_parm *opt, u8 type,
+				 u8 code, int offset, __be32 info     )
 {
 	__udp6_lib_err(skb, opt, type, code, offset, info, &udp_table);
 }
@@ -1062,8 +1061,8 @@ static void udp6_sock_seq_show(struct seq_file *seq, struct sock *sp, int bucket
 		   dest->s6_addr32[0], dest->s6_addr32[1],
 		   dest->s6_addr32[2], dest->s6_addr32[3], destp,
 		   sp->sk_state,
-		   atomic_read(&sp->sk_wmem_alloc),
-		   atomic_read(&sp->sk_rmem_alloc),
+		   sk_wmem_alloc_get(sp),
+		   sk_rmem_alloc_get(sp),
 		   0, 0L, 0,
 		   sock_i_uid(sp), 0,
 		   sock_i_ino(sp),
diff --git a/net/ipv6/udp_impl.h b/net/ipv6/udp_impl.h
index 23779208c334..6bb303471e20 100644
--- a/net/ipv6/udp_impl.h
+++ b/net/ipv6/udp_impl.h
@@ -9,7 +9,7 @@
 
 extern int  	__udp6_lib_rcv(struct sk_buff *, struct udp_table *, int );
 extern void 	__udp6_lib_err(struct sk_buff *, struct inet6_skb_parm *,
-			       int , int , int , __be32 , struct udp_table *);
+			       u8 , u8 , int , __be32 , struct udp_table *);
 
 extern int	udp_v6_get_port(struct sock *sk, unsigned short snum);
 
diff --git a/net/ipv6/udplite.c b/net/ipv6/udplite.c
index ba162a824585..4818c48688f2 100644
--- a/net/ipv6/udplite.c
+++ b/net/ipv6/udplite.c
@@ -20,7 +20,7 @@ static int udplitev6_rcv(struct sk_buff *skb)
 
 static void udplitev6_err(struct sk_buff *skb,
 			  struct inet6_skb_parm *opt,
-			  int type, int code, int offset, __be32 info)
+			  u8 type, u8 code, int offset, __be32 info)
 {
 	__udp6_lib_err(skb, opt, type, code, offset, info, &udplite_table);
 }
diff --git a/net/ipv6/xfrm6_mode_tunnel.c b/net/ipv6/xfrm6_mode_tunnel.c
index e20529b4c825..3927832227b9 100644
--- a/net/ipv6/xfrm6_mode_tunnel.c
+++ b/net/ipv6/xfrm6_mode_tunnel.c
@@ -31,7 +31,7 @@ static inline void ipip6_ecn_decapsulate(struct sk_buff *skb)
  */
 static int xfrm6_mode_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
 {
-	struct dst_entry *dst = skb->dst;
+	struct dst_entry *dst = skb_dst(skb);
 	struct ipv6hdr *top_iph;
 	int dsfield;
 
@@ -45,7 +45,7 @@ static int xfrm6_mode_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
 
 	memcpy(top_iph->flow_lbl, XFRM_MODE_SKB_CB(skb)->flow_lbl,
 	       sizeof(top_iph->flow_lbl));
-	top_iph->nexthdr = xfrm_af2proto(skb->dst->ops->family);
+	top_iph->nexthdr = xfrm_af2proto(skb_dst(skb)->ops->family);
 
 	dsfield = XFRM_MODE_SKB_CB(skb)->tos;
 	dsfield = INET_ECN_encapsulate(dsfield, dsfield);
diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c
index 5ee5a031bc93..c4f4eef032a3 100644
--- a/net/ipv6/xfrm6_output.c
+++ b/net/ipv6/xfrm6_output.c
@@ -30,7 +30,7 @@ EXPORT_SYMBOL(xfrm6_find_1stfragopt);
 static int xfrm6_tunnel_check_size(struct sk_buff *skb)
 {
 	int mtu, ret = 0;
-	struct dst_entry *dst = skb->dst;
+	struct dst_entry *dst = skb_dst(skb);
 
 	mtu = dst_mtu(dst);
 	if (mtu < IPV6_MIN_MTU)
@@ -90,6 +90,6 @@ static int xfrm6_output_finish(struct sk_buff *skb)
 
 int xfrm6_output(struct sk_buff *skb)
 {
-	return NF_HOOK(PF_INET6, NF_INET_POST_ROUTING, skb, NULL, skb->dst->dev,
+	return NF_HOOK(PF_INET6, NF_INET_POST_ROUTING, skb, NULL, skb_dst(skb)->dev,
 		       xfrm6_output_finish);
 }
diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c
index 80193db224d9..81a95c00e503 100644
--- a/net/ipv6/xfrm6_tunnel.c
+++ b/net/ipv6/xfrm6_tunnel.c
@@ -262,7 +262,7 @@ static int xfrm6_tunnel_rcv(struct sk_buff *skb)
 }
 
 static int xfrm6_tunnel_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-			    int type, int code, int offset, __be32 info)
+			    u8 type, u8 code, int offset, __be32 info)
 {
 	/* xfrm6_tunnel native err handling */
 	switch (type) {
diff --git a/net/ipx/af_ipx.c b/net/ipx/af_ipx.c
index 1627050e29fd..417b0e309495 100644
--- a/net/ipx/af_ipx.c
+++ b/net/ipx/af_ipx.c
@@ -1835,7 +1835,7 @@ static int ipx_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 
 	switch (cmd) {
 	case TIOCOUTQ:
-		amount = sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc);
+		amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk);
 		if (amount < 0)
 			amount = 0;
 		rc = put_user(amount, (int __user *)argp);
diff --git a/net/ipx/ipx_proc.c b/net/ipx/ipx_proc.c
index 5ed97ad0e2e3..576178482f89 100644
--- a/net/ipx/ipx_proc.c
+++ b/net/ipx/ipx_proc.c
@@ -280,8 +280,8 @@ static int ipx_seq_socket_show(struct seq_file *seq, void *v)
 	}
 
 	seq_printf(seq, "%08X  %08X  %02X     %03d\n",
-		   atomic_read(&s->sk_wmem_alloc),
-		   atomic_read(&s->sk_rmem_alloc),
+		   sk_wmem_alloc_get(s),
+		   sk_rmem_alloc_get(s),
 		   s->sk_state, SOCK_INODE(s->sk_socket)->i_uid);
 out:
 	return 0;
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index 3eb5bcc75f99..cb762c8723ea 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -913,9 +913,6 @@ static int irda_accept(struct socket *sock, struct socket *newsock, int flags)
 	/* Clean up the original one to keep it in listen state */
 	irttp_listen(self->tsap);
 
-	/* Wow ! What is that ? Jean II */
-	skb->sk = NULL;
-	skb->destructor = NULL;
 	kfree_skb(skb);
 	sk->sk_ack_backlog--;
 
@@ -1762,7 +1759,8 @@ static int irda_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 	switch (cmd) {
 	case TIOCOUTQ: {
 		long amount;
-		amount = sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc);
+
+		amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk);
 		if (amount < 0)
 			amount = 0;
 		if (put_user(amount, (unsigned int __user *)arg))
diff --git a/net/irda/ircomm/ircomm_lmp.c b/net/irda/ircomm/ircomm_lmp.c
index 67c99d20857f..7ba96618660e 100644
--- a/net/irda/ircomm/ircomm_lmp.c
+++ b/net/irda/ircomm/ircomm_lmp.c
@@ -196,6 +196,7 @@ static int ircomm_lmp_data_request(struct ircomm_cb *self,
 	/* Don't forget to refcount it - see ircomm_tty_do_softint() */
 	skb_get(skb);
 
+	skb_orphan(skb);
 	skb->destructor = ircomm_lmp_flow_control;
 
 	if ((self->pkt_count++ > 7) && (self->flow_status == FLOW_START)) {
diff --git a/net/irda/irlap_frame.c b/net/irda/irlap_frame.c
index 2562ebc1b22c..7af2e74deda8 100644
--- a/net/irda/irlap_frame.c
+++ b/net/irda/irlap_frame.c
@@ -982,17 +982,12 @@ void irlap_resend_rejected_frames(struct irlap_cb *self, int command)
 {
 	struct sk_buff *tx_skb;
 	struct sk_buff *skb;
-	int count;
 
 	IRDA_ASSERT(self != NULL, return;);
 	IRDA_ASSERT(self->magic == LAP_MAGIC, return;);
 
-	/* Initialize variables */
-	count = skb_queue_len(&self->wx_list);
-
 	/*  Resend unacknowledged frame(s) */
-	skb = skb_peek(&self->wx_list);
-	while (skb != NULL) {
+	skb_queue_walk(&self->wx_list, skb) {
 		irlap_wait_min_turn_around(self, &self->qos_tx);
 
 		/* We copy the skb to be retransmitted since we will have to
@@ -1011,21 +1006,12 @@ void irlap_resend_rejected_frames(struct irlap_cb *self, int command)
 		/*
 		 *  Set poll bit on the last frame retransmitted
 		 */
-		if (count-- == 1)
+		if (skb_queue_is_last(&self->wx_list, skb))
 			tx_skb->data[1] |= PF_BIT; /* Set p/f bit */
 		else
 			tx_skb->data[1] &= ~PF_BIT; /* Clear p/f bit */
 
 		irlap_send_i_frame(self, tx_skb, command);
-
-		/*
-		 *  If our skb is the last buffer in the list, then
-		 *  we are finished, if not, move to the next sk-buffer
-		 */
-		if (skb == skb_peek_tail(&self->wx_list))
-			skb = NULL;
-		else
-			skb = skb->next;
 	}
 #if 0 /* Not yet */
 	/*
diff --git a/net/irda/irnetlink.c b/net/irda/irnetlink.c
index 2f05ec1037ab..8dd7ed7e7c1f 100644
--- a/net/irda/irnetlink.c
+++ b/net/irda/irnetlink.c
@@ -87,7 +87,7 @@ static int irda_nl_get_mode(struct sk_buff *skb, struct genl_info *info)
 	if (!dev)
 		return -ENODEV;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg) {
 		dev_put(dev);
 		return -ENOMEM;
@@ -148,21 +148,8 @@ static struct genl_ops irda_nl_ops[] = {
 
 int irda_nl_register(void)
 {
-	int err, i;
-
-	err = genl_register_family(&irda_nl_family);
-	if (err)
-		return err;
-
-	for (i = 0; i < ARRAY_SIZE(irda_nl_ops); i++) {
-		err = genl_register_ops(&irda_nl_family, &irda_nl_ops[i]);
-		if (err)
-			goto err_out;
-	}
-	return 0;
- err_out:
-	genl_unregister_family(&irda_nl_family);
-	return err;
+	return genl_register_family_with_ops(&irda_nl_family,
+		irda_nl_ops, ARRAY_SIZE(irda_nl_ops));
 }
 
 void irda_nl_unregister(void)
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index b51c9187c347..6be5f92d1094 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -1,11 +1,12 @@
 /*
- *  linux/net/iucv/af_iucv.c
- *
  *  IUCV protocol stack for Linux on zSeries
  *
- *  Copyright 2006 IBM Corporation
+ *  Copyright IBM Corp. 2006, 2009
  *
  *  Author(s):	Jennifer Hunt <jenhunt@us.ibm.com>
+ *		Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
+ *  PM functions:
+ *		Ursula Braun <ursula.braun@de.ibm.com>
  */
 
 #define KMSG_COMPONENT "af_iucv"
@@ -29,10 +30,7 @@
 #include <net/iucv/iucv.h>
 #include <net/iucv/af_iucv.h>
 
-#define CONFIG_IUCV_SOCK_DEBUG 1
-
-#define IPRMDATA 0x80
-#define VERSION "1.0"
+#define VERSION "1.1"
 
 static char iucv_userid[80];
 
@@ -44,6 +42,51 @@ static struct proto iucv_proto = {
 	.obj_size	= sizeof(struct iucv_sock),
 };
 
+/* special AF_IUCV IPRM messages */
+static const u8 iprm_shutdown[8] =
+	{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01};
+
+#define TRGCLS_SIZE	(sizeof(((struct iucv_message *)0)->class))
+
+/* macros to set/get socket control buffer at correct offset */
+#define CB_TAG(skb)	((skb)->cb)		/* iucv message tag */
+#define CB_TAG_LEN	(sizeof(((struct iucv_message *) 0)->tag))
+#define CB_TRGCLS(skb)	((skb)->cb + CB_TAG_LEN) /* iucv msg target class */
+#define CB_TRGCLS_LEN	(TRGCLS_SIZE)
+
+#define __iucv_sock_wait(sk, condition, timeo, ret)			\
+do {									\
+	DEFINE_WAIT(__wait);						\
+	long __timeo = timeo;						\
+	ret = 0;							\
+	while (!(condition)) {						\
+		prepare_to_wait(sk->sk_sleep, &__wait, TASK_INTERRUPTIBLE); \
+		if (!__timeo) {						\
+			ret = -EAGAIN;					\
+			break;						\
+		}							\
+		if (signal_pending(current)) {				\
+			ret = sock_intr_errno(__timeo);			\
+			break;						\
+		}							\
+		release_sock(sk);					\
+		__timeo = schedule_timeout(__timeo);			\
+		lock_sock(sk);						\
+		ret = sock_error(sk);					\
+		if (ret)						\
+			break;						\
+	}								\
+	finish_wait(sk->sk_sleep, &__wait);				\
+} while (0)
+
+#define iucv_sock_wait(sk, condition, timeo)				\
+({									\
+	int __ret = 0;							\
+	if (!(condition))						\
+		__iucv_sock_wait(sk, condition, timeo, __ret);		\
+	__ret;								\
+})
+
 static void iucv_sock_kill(struct sock *sk);
 static void iucv_sock_close(struct sock *sk);
 
@@ -54,6 +97,7 @@ static void iucv_callback_connack(struct iucv_path *, u8 ipuser[16]);
 static int iucv_callback_connreq(struct iucv_path *, u8 ipvmid[8],
 				 u8 ipuser[16]);
 static void iucv_callback_connrej(struct iucv_path *, u8 ipuser[16]);
+static void iucv_callback_shutdown(struct iucv_path *, u8 ipuser[16]);
 
 static struct iucv_sock_list iucv_sk_list = {
 	.lock = __RW_LOCK_UNLOCKED(iucv_sk_list.lock),
@@ -65,7 +109,8 @@ static struct iucv_handler af_iucv_handler = {
 	.path_complete	  = iucv_callback_connack,
 	.path_severed	  = iucv_callback_connrej,
 	.message_pending  = iucv_callback_rx,
-	.message_complete = iucv_callback_txdone
+	.message_complete = iucv_callback_txdone,
+	.path_quiesced	  = iucv_callback_shutdown,
 };
 
 static inline void high_nmcpy(unsigned char *dst, char *src)
@@ -78,6 +123,195 @@ static inline void low_nmcpy(unsigned char *dst, char *src)
        memcpy(&dst[8], src, 8);
 }
 
+static int afiucv_pm_prepare(struct device *dev)
+{
+#ifdef CONFIG_PM_DEBUG
+	printk(KERN_WARNING "afiucv_pm_prepare\n");
+#endif
+	return 0;
+}
+
+static void afiucv_pm_complete(struct device *dev)
+{
+#ifdef CONFIG_PM_DEBUG
+	printk(KERN_WARNING "afiucv_pm_complete\n");
+#endif
+	return;
+}
+
+/**
+ * afiucv_pm_freeze() - Freeze PM callback
+ * @dev:	AFIUCV dummy device
+ *
+ * Sever all established IUCV communication pathes
+ */
+static int afiucv_pm_freeze(struct device *dev)
+{
+	struct iucv_sock *iucv;
+	struct sock *sk;
+	struct hlist_node *node;
+	int err = 0;
+
+#ifdef CONFIG_PM_DEBUG
+	printk(KERN_WARNING "afiucv_pm_freeze\n");
+#endif
+	read_lock(&iucv_sk_list.lock);
+	sk_for_each(sk, node, &iucv_sk_list.head) {
+		iucv = iucv_sk(sk);
+		skb_queue_purge(&iucv->send_skb_q);
+		skb_queue_purge(&iucv->backlog_skb_q);
+		switch (sk->sk_state) {
+		case IUCV_SEVERED:
+		case IUCV_DISCONN:
+		case IUCV_CLOSING:
+		case IUCV_CONNECTED:
+			if (iucv->path) {
+				err = iucv_path_sever(iucv->path, NULL);
+				iucv_path_free(iucv->path);
+				iucv->path = NULL;
+			}
+			break;
+		case IUCV_OPEN:
+		case IUCV_BOUND:
+		case IUCV_LISTEN:
+		case IUCV_CLOSED:
+		default:
+			break;
+		}
+	}
+	read_unlock(&iucv_sk_list.lock);
+	return err;
+}
+
+/**
+ * afiucv_pm_restore_thaw() - Thaw and restore PM callback
+ * @dev:	AFIUCV dummy device
+ *
+ * socket clean up after freeze
+ */
+static int afiucv_pm_restore_thaw(struct device *dev)
+{
+	struct iucv_sock *iucv;
+	struct sock *sk;
+	struct hlist_node *node;
+
+#ifdef CONFIG_PM_DEBUG
+	printk(KERN_WARNING "afiucv_pm_restore_thaw\n");
+#endif
+	read_lock(&iucv_sk_list.lock);
+	sk_for_each(sk, node, &iucv_sk_list.head) {
+		iucv = iucv_sk(sk);
+		switch (sk->sk_state) {
+		case IUCV_CONNECTED:
+			sk->sk_err = EPIPE;
+			sk->sk_state = IUCV_DISCONN;
+			sk->sk_state_change(sk);
+			break;
+		case IUCV_DISCONN:
+		case IUCV_SEVERED:
+		case IUCV_CLOSING:
+		case IUCV_LISTEN:
+		case IUCV_BOUND:
+		case IUCV_OPEN:
+		default:
+			break;
+		}
+	}
+	read_unlock(&iucv_sk_list.lock);
+	return 0;
+}
+
+static struct dev_pm_ops afiucv_pm_ops = {
+	.prepare = afiucv_pm_prepare,
+	.complete = afiucv_pm_complete,
+	.freeze = afiucv_pm_freeze,
+	.thaw = afiucv_pm_restore_thaw,
+	.restore = afiucv_pm_restore_thaw,
+};
+
+static struct device_driver af_iucv_driver = {
+	.owner = THIS_MODULE,
+	.name = "afiucv",
+	.bus  = &iucv_bus,
+	.pm   = &afiucv_pm_ops,
+};
+
+/* dummy device used as trigger for PM functions */
+static struct device *af_iucv_dev;
+
+/**
+ * iucv_msg_length() - Returns the length of an iucv message.
+ * @msg:	Pointer to struct iucv_message, MUST NOT be NULL
+ *
+ * The function returns the length of the specified iucv message @msg of data
+ * stored in a buffer and of data stored in the parameter list (PRMDATA).
+ *
+ * For IUCV_IPRMDATA, AF_IUCV uses the following convention to transport socket
+ * data:
+ *	PRMDATA[0..6]	socket data (max 7 bytes);
+ *	PRMDATA[7]	socket data length value (len is 0xff - PRMDATA[7])
+ *
+ * The socket data length is computed by substracting the socket data length
+ * value from 0xFF.
+ * If the socket data len is greater 7, then PRMDATA can be used for special
+ * notifications (see iucv_sock_shutdown); and further,
+ * if the socket data len is > 7, the function returns 8.
+ *
+ * Use this function to allocate socket buffers to store iucv message data.
+ */
+static inline size_t iucv_msg_length(struct iucv_message *msg)
+{
+	size_t datalen;
+
+	if (msg->flags & IUCV_IPRMDATA) {
+		datalen = 0xff - msg->rmmsg[7];
+		return (datalen < 8) ? datalen : 8;
+	}
+	return msg->length;
+}
+
+/**
+ * iucv_sock_in_state() - check for specific states
+ * @sk:		sock structure
+ * @state:	first iucv sk state
+ * @state:	second iucv sk state
+ *
+ * Returns true if the socket in either in the first or second state.
+ */
+static int iucv_sock_in_state(struct sock *sk, int state, int state2)
+{
+	return (sk->sk_state == state || sk->sk_state == state2);
+}
+
+/**
+ * iucv_below_msglim() - function to check if messages can be sent
+ * @sk:		sock structure
+ *
+ * Returns true if the send queue length is lower than the message limit.
+ * Always returns true if the socket is not connected (no iucv path for
+ * checking the message limit).
+ */
+static inline int iucv_below_msglim(struct sock *sk)
+{
+	struct iucv_sock *iucv = iucv_sk(sk);
+
+	if (sk->sk_state != IUCV_CONNECTED)
+		return 1;
+	return (skb_queue_len(&iucv->send_skb_q) < iucv->path->msglim);
+}
+
+/**
+ * iucv_sock_wake_msglim() - Wake up thread waiting on msg limit
+ */
+static void iucv_sock_wake_msglim(struct sock *sk)
+{
+	read_lock(&sk->sk_callback_lock);
+	if (sk->sk_sleep && waitqueue_active(sk->sk_sleep))
+		wake_up_interruptible_all(sk->sk_sleep);
+	sk_wake_async(sk, SOCK_WAKE_SPACE, POLL_OUT);
+	read_unlock(&sk->sk_callback_lock);
+}
+
 /* Timers */
 static void iucv_sock_timeout(unsigned long arg)
 {
@@ -169,7 +403,9 @@ static void iucv_sock_close(struct sock *sk)
 				timeo = sk->sk_lingertime;
 			else
 				timeo = IUCV_DISCONN_TIMEOUT;
-			err = iucv_sock_wait_state(sk, IUCV_CLOSED, 0, timeo);
+			err = iucv_sock_wait(sk,
+					iucv_sock_in_state(sk, IUCV_CLOSED, 0),
+					timeo);
 		}
 
 	case IUCV_CLOSING:   /* fall through */
@@ -225,6 +461,8 @@ static struct sock *iucv_sock_alloc(struct socket *sock, int proto, gfp_t prio)
 	spin_lock_init(&iucv_sk(sk)->message_q.lock);
 	skb_queue_head_init(&iucv_sk(sk)->backlog_skb_q);
 	iucv_sk(sk)->send_tag = 0;
+	iucv_sk(sk)->flags = 0;
+	iucv_sk(sk)->msglimit = IUCV_QUEUELEN_DEFAULT;
 	iucv_sk(sk)->path = NULL;
 	memset(&iucv_sk(sk)->src_user_id , 0, 32);
 
@@ -248,11 +486,22 @@ static int iucv_sock_create(struct net *net, struct socket *sock, int protocol)
 {
 	struct sock *sk;
 
-	if (sock->type != SOCK_STREAM)
-		return -ESOCKTNOSUPPORT;
+	if (protocol && protocol != PF_IUCV)
+		return -EPROTONOSUPPORT;
 
 	sock->state = SS_UNCONNECTED;
-	sock->ops = &iucv_sock_ops;
+
+	switch (sock->type) {
+	case SOCK_STREAM:
+		sock->ops = &iucv_sock_ops;
+		break;
+	case SOCK_SEQPACKET:
+		/* currently, proto ops can handle both sk types */
+		sock->ops = &iucv_sock_ops;
+		break;
+	default:
+		return -ESOCKTNOSUPPORT;
+	}
 
 	sk = iucv_sock_alloc(sock, protocol, GFP_KERNEL);
 	if (!sk)
@@ -337,39 +586,6 @@ struct sock *iucv_accept_dequeue(struct sock *parent, struct socket *newsock)
 	return NULL;
 }
 
-int iucv_sock_wait_state(struct sock *sk, int state, int state2,
-			 unsigned long timeo)
-{
-	DECLARE_WAITQUEUE(wait, current);
-	int err = 0;
-
-	add_wait_queue(sk->sk_sleep, &wait);
-	while (sk->sk_state != state && sk->sk_state != state2) {
-		set_current_state(TASK_INTERRUPTIBLE);
-
-		if (!timeo) {
-			err = -EAGAIN;
-			break;
-		}
-
-		if (signal_pending(current)) {
-			err = sock_intr_errno(timeo);
-			break;
-		}
-
-		release_sock(sk);
-		timeo = schedule_timeout(timeo);
-		lock_sock(sk);
-
-		err = sock_error(sk);
-		if (err)
-			break;
-	}
-	set_current_state(TASK_RUNNING);
-	remove_wait_queue(sk->sk_sleep, &wait);
-	return err;
-}
-
 /* Bind an unbound socket */
 static int iucv_sock_bind(struct socket *sock, struct sockaddr *addr,
 			  int addr_len)
@@ -463,11 +679,9 @@ static int iucv_sock_connect(struct socket *sock, struct sockaddr *addr,
 	if (sk->sk_state != IUCV_OPEN && sk->sk_state != IUCV_BOUND)
 		return -EBADFD;
 
-	if (sk->sk_type != SOCK_STREAM)
+	if (sk->sk_type != SOCK_STREAM && sk->sk_type != SOCK_SEQPACKET)
 		return -EINVAL;
 
-	iucv = iucv_sk(sk);
-
 	if (sk->sk_state == IUCV_OPEN) {
 		err = iucv_sock_autobind(sk);
 		if (unlikely(err))
@@ -486,8 +700,8 @@ static int iucv_sock_connect(struct socket *sock, struct sockaddr *addr,
 
 	iucv = iucv_sk(sk);
 	/* Create path. */
-	iucv->path = iucv_path_alloc(IUCV_QUEUELEN_DEFAULT,
-				     IPRMDATA, GFP_KERNEL);
+	iucv->path = iucv_path_alloc(iucv->msglimit,
+				     IUCV_IPRMDATA, GFP_KERNEL);
 	if (!iucv->path) {
 		err = -ENOMEM;
 		goto done;
@@ -516,13 +730,13 @@ static int iucv_sock_connect(struct socket *sock, struct sockaddr *addr,
 	}
 
 	if (sk->sk_state != IUCV_CONNECTED) {
-		err = iucv_sock_wait_state(sk, IUCV_CONNECTED, IUCV_DISCONN,
-				sock_sndtimeo(sk, flags & O_NONBLOCK));
+		err = iucv_sock_wait(sk, iucv_sock_in_state(sk, IUCV_CONNECTED,
+							    IUCV_DISCONN),
+				     sock_sndtimeo(sk, flags & O_NONBLOCK));
 	}
 
 	if (sk->sk_state == IUCV_DISCONN) {
-		release_sock(sk);
-		return -ECONNREFUSED;
+		err = -ECONNREFUSED;
 	}
 
 	if (err) {
@@ -545,7 +759,10 @@ static int iucv_sock_listen(struct socket *sock, int backlog)
 	lock_sock(sk);
 
 	err = -EINVAL;
-	if (sk->sk_state != IUCV_BOUND || sock->type != SOCK_STREAM)
+	if (sk->sk_state != IUCV_BOUND)
+		goto done;
+
+	if (sock->type != SOCK_STREAM && sock->type != SOCK_SEQPACKET)
 		goto done;
 
 	sk->sk_max_ack_backlog = backlog;
@@ -636,6 +853,30 @@ static int iucv_sock_getname(struct socket *sock, struct sockaddr *addr,
 	return 0;
 }
 
+/**
+ * iucv_send_iprm() - Send socket data in parameter list of an iucv message.
+ * @path:	IUCV path
+ * @msg:	Pointer to a struct iucv_message
+ * @skb:	The socket data to send, skb->len MUST BE <= 7
+ *
+ * Send the socket data in the parameter list in the iucv message
+ * (IUCV_IPRMDATA). The socket data is stored at index 0 to 6 in the parameter
+ * list and the socket data len at index 7 (last byte).
+ * See also iucv_msg_length().
+ *
+ * Returns the error code from the iucv_message_send() call.
+ */
+static int iucv_send_iprm(struct iucv_path *path, struct iucv_message *msg,
+			  struct sk_buff *skb)
+{
+	u8 prmdata[8];
+
+	memcpy(prmdata, (void *) skb->data, skb->len);
+	prmdata[7] = 0xff - (u8) skb->len;
+	return iucv_message_send(path, msg, IUCV_IPRMDATA, 0,
+				 (void *) prmdata, 8);
+}
+
 static int iucv_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
 			     struct msghdr *msg, size_t len)
 {
@@ -643,9 +884,13 @@ static int iucv_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
 	struct iucv_sock *iucv = iucv_sk(sk);
 	struct sk_buff *skb;
 	struct iucv_message txmsg;
+	struct cmsghdr *cmsg;
+	int cmsg_done;
+	long timeo;
 	char user_id[9];
 	char appl_id[9];
 	int err;
+	int noblock = msg->msg_flags & MSG_DONTWAIT;
 
 	err = sock_error(sk);
 	if (err)
@@ -654,6 +899,10 @@ static int iucv_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
 	if (msg->msg_flags & MSG_OOB)
 		return -EOPNOTSUPP;
 
+	/* SOCK_SEQPACKET: we do not support segmented records */
+	if (sk->sk_type == SOCK_SEQPACKET && !(msg->msg_flags & MSG_EOR))
+		return -EOPNOTSUPP;
+
 	lock_sock(sk);
 
 	if (sk->sk_shutdown & SEND_SHUTDOWN) {
@@ -661,42 +910,119 @@ static int iucv_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
 		goto out;
 	}
 
-	if (sk->sk_state == IUCV_CONNECTED) {
-		if (!(skb = sock_alloc_send_skb(sk, len,
-						msg->msg_flags & MSG_DONTWAIT,
-						&err)))
+	/* Return if the socket is not in connected state */
+	if (sk->sk_state != IUCV_CONNECTED) {
+		err = -ENOTCONN;
+		goto out;
+	}
+
+	/* initialize defaults */
+	cmsg_done   = 0;	/* check for duplicate headers */
+	txmsg.class = 0;
+
+	/* iterate over control messages */
+	for (cmsg = CMSG_FIRSTHDR(msg); cmsg;
+		cmsg = CMSG_NXTHDR(msg, cmsg)) {
+
+		if (!CMSG_OK(msg, cmsg)) {
+			err = -EINVAL;
 			goto out;
+		}
 
-		if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) {
-			err = -EFAULT;
-			goto fail;
+		if (cmsg->cmsg_level != SOL_IUCV)
+			continue;
+
+		if (cmsg->cmsg_type & cmsg_done) {
+			err = -EINVAL;
+			goto out;
 		}
+		cmsg_done |= cmsg->cmsg_type;
 
-		txmsg.class = 0;
-		memcpy(&txmsg.class, skb->data, skb->len >= 4 ? 4 : skb->len);
-		txmsg.tag = iucv->send_tag++;
-		memcpy(skb->cb, &txmsg.tag, 4);
-		skb_queue_tail(&iucv->send_skb_q, skb);
-		err = iucv_message_send(iucv->path, &txmsg, 0, 0,
-					(void *) skb->data, skb->len);
-		if (err) {
-			if (err == 3) {
-				user_id[8] = 0;
-				memcpy(user_id, iucv->dst_user_id, 8);
-				appl_id[8] = 0;
-				memcpy(appl_id, iucv->dst_name, 8);
-				pr_err("Application %s on z/VM guest %s"
-				       " exceeds message limit\n",
-				       user_id, appl_id);
+		switch (cmsg->cmsg_type) {
+		case SCM_IUCV_TRGCLS:
+			if (cmsg->cmsg_len != CMSG_LEN(TRGCLS_SIZE)) {
+				err = -EINVAL;
+				goto out;
 			}
+
+			/* set iucv message target class */
+			memcpy(&txmsg.class,
+				(void *) CMSG_DATA(cmsg), TRGCLS_SIZE);
+
+			break;
+
+		default:
+			err = -EINVAL;
+			goto out;
+			break;
+		}
+	}
+
+	/* allocate one skb for each iucv message:
+	 * this is fine for SOCK_SEQPACKET (unless we want to support
+	 * segmented records using the MSG_EOR flag), but
+	 * for SOCK_STREAM we might want to improve it in future */
+	skb = sock_alloc_send_skb(sk, len, noblock, &err);
+	if (!skb)
+		goto out;
+	if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) {
+		err = -EFAULT;
+		goto fail;
+	}
+
+	/* wait if outstanding messages for iucv path has reached */
+	timeo = sock_sndtimeo(sk, noblock);
+	err = iucv_sock_wait(sk, iucv_below_msglim(sk), timeo);
+	if (err)
+		goto fail;
+
+	/* return -ECONNRESET if the socket is no longer connected */
+	if (sk->sk_state != IUCV_CONNECTED) {
+		err = -ECONNRESET;
+		goto fail;
+	}
+
+	/* increment and save iucv message tag for msg_completion cbk */
+	txmsg.tag = iucv->send_tag++;
+	memcpy(CB_TAG(skb), &txmsg.tag, CB_TAG_LEN);
+	skb_queue_tail(&iucv->send_skb_q, skb);
+
+	if (((iucv->path->flags & IUCV_IPRMDATA) & iucv->flags)
+	      && skb->len <= 7) {
+		err = iucv_send_iprm(iucv->path, &txmsg, skb);
+
+		/* on success: there is no message_complete callback
+		 * for an IPRMDATA msg; remove skb from send queue */
+		if (err == 0) {
+			skb_unlink(skb, &iucv->send_skb_q);
+			kfree_skb(skb);
+		}
+
+		/* this error should never happen since the
+		 * IUCV_IPRMDATA path flag is set... sever path */
+		if (err == 0x15) {
+			iucv_path_sever(iucv->path, NULL);
 			skb_unlink(skb, &iucv->send_skb_q);
 			err = -EPIPE;
 			goto fail;
 		}
-
-	} else {
-		err = -ENOTCONN;
-		goto out;
+	} else
+		err = iucv_message_send(iucv->path, &txmsg, 0, 0,
+					(void *) skb->data, skb->len);
+	if (err) {
+		if (err == 3) {
+			user_id[8] = 0;
+			memcpy(user_id, iucv->dst_user_id, 8);
+			appl_id[8] = 0;
+			memcpy(appl_id, iucv->dst_name, 8);
+			pr_err("Application %s on z/VM guest %s"
+				" exceeds message limit\n",
+				appl_id, user_id);
+			err = -EAGAIN;
+		} else
+			err = -EPIPE;
+		skb_unlink(skb, &iucv->send_skb_q);
+		goto fail;
 	}
 
 	release_sock(sk);
@@ -725,6 +1051,10 @@ static int iucv_fragment_skb(struct sock *sk, struct sk_buff *skb, int len)
 		if (!nskb)
 			return -ENOMEM;
 
+		/* copy target class to control buffer of new skb */
+		memcpy(CB_TRGCLS(nskb), CB_TRGCLS(skb), CB_TRGCLS_LEN);
+
+		/* copy data fragment */
 		memcpy(nskb->data, skb->data + copied, size);
 		copied += size;
 		dataleft -= size;
@@ -744,19 +1074,33 @@ static void iucv_process_message(struct sock *sk, struct sk_buff *skb,
 				 struct iucv_message *msg)
 {
 	int rc;
+	unsigned int len;
+
+	len = iucv_msg_length(msg);
 
-	if (msg->flags & IPRMDATA) {
-		skb->data = NULL;
-		skb->len = 0;
+	/* store msg target class in the second 4 bytes of skb ctrl buffer */
+	/* Note: the first 4 bytes are reserved for msg tag */
+	memcpy(CB_TRGCLS(skb), &msg->class, CB_TRGCLS_LEN);
+
+	/* check for special IPRM messages (e.g. iucv_sock_shutdown) */
+	if ((msg->flags & IUCV_IPRMDATA) && len > 7) {
+		if (memcmp(msg->rmmsg, iprm_shutdown, 8) == 0) {
+			skb->data = NULL;
+			skb->len = 0;
+		}
 	} else {
-		rc = iucv_message_receive(path, msg, 0, skb->data,
-					  msg->length, NULL);
+		rc = iucv_message_receive(path, msg, msg->flags & IUCV_IPRMDATA,
+					  skb->data, len, NULL);
 		if (rc) {
 			kfree_skb(skb);
 			return;
 		}
-		if (skb->truesize >= sk->sk_rcvbuf / 4) {
-			rc = iucv_fragment_skb(sk, skb, msg->length);
+		/* we need to fragment iucv messages for SOCK_STREAM only;
+		 * for SOCK_SEQPACKET, it is only relevant if we support
+		 * record segmentation using MSG_EOR (see also recvmsg()) */
+		if (sk->sk_type == SOCK_STREAM &&
+		    skb->truesize >= sk->sk_rcvbuf / 4) {
+			rc = iucv_fragment_skb(sk, skb, len);
 			kfree_skb(skb);
 			skb = NULL;
 			if (rc) {
@@ -767,7 +1111,7 @@ static void iucv_process_message(struct sock *sk, struct sk_buff *skb,
 		} else {
 			skb_reset_transport_header(skb);
 			skb_reset_network_header(skb);
-			skb->len = msg->length;
+			skb->len = len;
 		}
 	}
 
@@ -782,7 +1126,7 @@ static void iucv_process_message_q(struct sock *sk)
 	struct sock_msg_q *p, *n;
 
 	list_for_each_entry_safe(p, n, &iucv->message_q.list, list) {
-		skb = alloc_skb(p->msg.length, GFP_ATOMIC | GFP_DMA);
+		skb = alloc_skb(iucv_msg_length(&p->msg), GFP_ATOMIC | GFP_DMA);
 		if (!skb)
 			break;
 		iucv_process_message(sk, skb, p->path, &p->msg);
@@ -799,7 +1143,7 @@ static int iucv_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 	int noblock = flags & MSG_DONTWAIT;
 	struct sock *sk = sock->sk;
 	struct iucv_sock *iucv = iucv_sk(sk);
-	int target, copied = 0;
+	unsigned int copied, rlen;
 	struct sk_buff *skb, *rskb, *cskb;
 	int err = 0;
 
@@ -812,8 +1156,6 @@ static int iucv_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 	if (flags & (MSG_OOB))
 		return -EOPNOTSUPP;
 
-	target = sock_rcvlowat(sk, flags & MSG_WAITALL, len);
-
 	/* receive/dequeue next skb:
 	 * the function understands MSG_PEEK and, thus, does not dequeue skb */
 	skb = skb_recv_datagram(sk, flags, noblock, &err);
@@ -823,25 +1165,45 @@ static int iucv_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 		return err;
 	}
 
-	copied = min_t(unsigned int, skb->len, len);
+	rlen   = skb->len;		/* real length of skb */
+	copied = min_t(unsigned int, rlen, len);
 
 	cskb = skb;
 	if (memcpy_toiovec(msg->msg_iov, cskb->data, copied)) {
-		skb_queue_head(&sk->sk_receive_queue, skb);
-		if (copied == 0)
-			return -EFAULT;
-		goto done;
+		if (!(flags & MSG_PEEK))
+			skb_queue_head(&sk->sk_receive_queue, skb);
+		return -EFAULT;
+	}
+
+	/* SOCK_SEQPACKET: set MSG_TRUNC if recv buf size is too small */
+	if (sk->sk_type == SOCK_SEQPACKET) {
+		if (copied < rlen)
+			msg->msg_flags |= MSG_TRUNC;
+		/* each iucv message contains a complete record */
+		msg->msg_flags |= MSG_EOR;
 	}
 
-	len -= copied;
+	/* create control message to store iucv msg target class:
+	 * get the trgcls from the control buffer of the skb due to
+	 * fragmentation of original iucv message. */
+	err = put_cmsg(msg, SOL_IUCV, SCM_IUCV_TRGCLS,
+			CB_TRGCLS_LEN, CB_TRGCLS(skb));
+	if (err) {
+		if (!(flags & MSG_PEEK))
+			skb_queue_head(&sk->sk_receive_queue, skb);
+		return err;
+	}
 
 	/* Mark read part of skb as used */
 	if (!(flags & MSG_PEEK)) {
-		skb_pull(skb, copied);
 
-		if (skb->len) {
-			skb_queue_head(&sk->sk_receive_queue, skb);
-			goto done;
+		/* SOCK_STREAM: re-queue skb if it contains unreceived data */
+		if (sk->sk_type == SOCK_STREAM) {
+			skb_pull(skb, copied);
+			if (skb->len) {
+				skb_queue_head(&sk->sk_receive_queue, skb);
+				goto done;
+			}
 		}
 
 		kfree_skb(skb);
@@ -866,7 +1228,11 @@ static int iucv_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 	}
 
 done:
-	return err ? : copied;
+	/* SOCK_SEQPACKET: return real length if MSG_TRUNC is set */
+	if (sk->sk_type == SOCK_SEQPACKET && (flags & MSG_TRUNC))
+		copied = rlen;
+
+	return copied;
 }
 
 static inline unsigned int iucv_accept_poll(struct sock *parent)
@@ -928,7 +1294,6 @@ static int iucv_sock_shutdown(struct socket *sock, int how)
 	struct iucv_sock *iucv = iucv_sk(sk);
 	struct iucv_message txmsg;
 	int err = 0;
-	u8 prmmsg[8] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01};
 
 	how++;
 
@@ -953,7 +1318,7 @@ static int iucv_sock_shutdown(struct socket *sock, int how)
 		txmsg.class = 0;
 		txmsg.tag = 0;
 		err = iucv_message_send(iucv->path, &txmsg, IUCV_IPRMDATA, 0,
-					(void *) prmmsg, 8);
+					(void *) iprm_shutdown, 8);
 		if (err) {
 			switch (err) {
 			case 1:
@@ -1007,6 +1372,98 @@ static int iucv_sock_release(struct socket *sock)
 	return err;
 }
 
+/* getsockopt and setsockopt */
+static int iucv_sock_setsockopt(struct socket *sock, int level, int optname,
+				char __user *optval, int optlen)
+{
+	struct sock *sk = sock->sk;
+	struct iucv_sock *iucv = iucv_sk(sk);
+	int val;
+	int rc;
+
+	if (level != SOL_IUCV)
+		return -ENOPROTOOPT;
+
+	if (optlen < sizeof(int))
+		return -EINVAL;
+
+	if (get_user(val, (int __user *) optval))
+		return -EFAULT;
+
+	rc = 0;
+
+	lock_sock(sk);
+	switch (optname) {
+	case SO_IPRMDATA_MSG:
+		if (val)
+			iucv->flags |= IUCV_IPRMDATA;
+		else
+			iucv->flags &= ~IUCV_IPRMDATA;
+		break;
+	case SO_MSGLIMIT:
+		switch (sk->sk_state) {
+		case IUCV_OPEN:
+		case IUCV_BOUND:
+			if (val < 1 || val > (u16)(~0))
+				rc = -EINVAL;
+			else
+				iucv->msglimit = val;
+			break;
+		default:
+			rc = -EINVAL;
+			break;
+		}
+		break;
+	default:
+		rc = -ENOPROTOOPT;
+		break;
+	}
+	release_sock(sk);
+
+	return rc;
+}
+
+static int iucv_sock_getsockopt(struct socket *sock, int level, int optname,
+				char __user *optval, int __user *optlen)
+{
+	struct sock *sk = sock->sk;
+	struct iucv_sock *iucv = iucv_sk(sk);
+	int val, len;
+
+	if (level != SOL_IUCV)
+		return -ENOPROTOOPT;
+
+	if (get_user(len, optlen))
+		return -EFAULT;
+
+	if (len < 0)
+		return -EINVAL;
+
+	len = min_t(unsigned int, len, sizeof(int));
+
+	switch (optname) {
+	case SO_IPRMDATA_MSG:
+		val = (iucv->flags & IUCV_IPRMDATA) ? 1 : 0;
+		break;
+	case SO_MSGLIMIT:
+		lock_sock(sk);
+		val = (iucv->path != NULL) ? iucv->path->msglim	/* connected */
+					   : iucv->msglimit;	/* default */
+		release_sock(sk);
+		break;
+	default:
+		return -ENOPROTOOPT;
+	}
+
+	if (put_user(len, optlen))
+		return -EFAULT;
+	if (copy_to_user(optval, &val, len))
+		return -EFAULT;
+
+	return 0;
+}
+
+
 /* Callback wrappers - called from iucv base support */
 static int iucv_callback_connreq(struct iucv_path *path,
 				 u8 ipvmid[8], u8 ipuser[16])
@@ -1060,7 +1517,7 @@ static int iucv_callback_connreq(struct iucv_path *path,
 	}
 
 	/* Create the new socket */
-	nsk = iucv_sock_alloc(NULL, SOCK_STREAM, GFP_ATOMIC);
+	nsk = iucv_sock_alloc(NULL, sk->sk_type, GFP_ATOMIC);
 	if (!nsk) {
 		err = iucv_path_sever(path, user_data);
 		iucv_path_free(path);
@@ -1083,7 +1540,9 @@ static int iucv_callback_connreq(struct iucv_path *path,
 	memcpy(nuser_data + 8, niucv->src_name, 8);
 	ASCEBC(nuser_data + 8, 8);
 
-	path->msglim = IUCV_QUEUELEN_DEFAULT;
+	/* set message limit for path based on msglimit of accepting socket */
+	niucv->msglimit = iucv->msglimit;
+	path->msglim = iucv->msglimit;
 	err = iucv_path_accept(path, &af_iucv_handler, nuser_data, nsk);
 	if (err) {
 		err = iucv_path_sever(path, user_data);
@@ -1131,19 +1590,17 @@ static void iucv_callback_rx(struct iucv_path *path, struct iucv_message *msg)
 		goto save_message;
 
 	len = atomic_read(&sk->sk_rmem_alloc);
-	len += msg->length + sizeof(struct sk_buff);
+	len += iucv_msg_length(msg) + sizeof(struct sk_buff);
 	if (len > sk->sk_rcvbuf)
 		goto save_message;
 
-	skb = alloc_skb(msg->length, GFP_ATOMIC | GFP_DMA);
+	skb = alloc_skb(iucv_msg_length(msg), GFP_ATOMIC | GFP_DMA);
 	if (!skb)
 		goto save_message;
 
 	iucv_process_message(sk, skb, path, msg);
 	goto out_unlock;
 
-	return;
-
 save_message:
 	save_msg = kzalloc(sizeof(struct sock_msg_q), GFP_ATOMIC | GFP_DMA);
 	if (!save_msg)
@@ -1170,7 +1627,7 @@ static void iucv_callback_txdone(struct iucv_path *path,
 		spin_lock_irqsave(&list->lock, flags);
 
 		while (list_skb != (struct sk_buff *)list) {
-			if (!memcmp(&msg->tag, list_skb->cb, 4)) {
+			if (!memcmp(&msg->tag, CB_TAG(list_skb), CB_TAG_LEN)) {
 				this = list_skb;
 				break;
 			}
@@ -1181,7 +1638,11 @@ static void iucv_callback_txdone(struct iucv_path *path,
 
 		spin_unlock_irqrestore(&list->lock, flags);
 
-		kfree_skb(this);
+		if (this) {
+			kfree_skb(this);
+			/* wake up any process waiting for sending */
+			iucv_sock_wake_msglim(sk);
+		}
 	}
 	BUG_ON(!this);
 
@@ -1206,6 +1667,21 @@ static void iucv_callback_connrej(struct iucv_path *path, u8 ipuser[16])
 	sk->sk_state_change(sk);
 }
 
+/* called if the other communication side shuts down its RECV direction;
+ * in turn, the callback sets SEND_SHUTDOWN to disable sending of data.
+ */
+static void iucv_callback_shutdown(struct iucv_path *path, u8 ipuser[16])
+{
+	struct sock *sk = path->private;
+
+	bh_lock_sock(sk);
+	if (sk->sk_state != IUCV_CLOSED) {
+		sk->sk_shutdown |= SEND_SHUTDOWN;
+		sk->sk_state_change(sk);
+	}
+	bh_unlock_sock(sk);
+}
+
 static struct proto_ops iucv_sock_ops = {
 	.family		= PF_IUCV,
 	.owner		= THIS_MODULE,
@@ -1222,8 +1698,8 @@ static struct proto_ops iucv_sock_ops = {
 	.mmap		= sock_no_mmap,
 	.socketpair	= sock_no_socketpair,
 	.shutdown	= iucv_sock_shutdown,
-	.setsockopt	= sock_no_setsockopt,
-	.getsockopt	= sock_no_getsockopt
+	.setsockopt	= iucv_sock_setsockopt,
+	.getsockopt	= iucv_sock_getsockopt,
 };
 
 static struct net_proto_family iucv_sock_family_ops = {
@@ -1258,8 +1734,30 @@ static int __init afiucv_init(void)
 	err = sock_register(&iucv_sock_family_ops);
 	if (err)
 		goto out_proto;
+	/* establish dummy device */
+	err = driver_register(&af_iucv_driver);
+	if (err)
+		goto out_sock;
+	af_iucv_dev = kzalloc(sizeof(struct device), GFP_KERNEL);
+	if (!af_iucv_dev) {
+		err = -ENOMEM;
+		goto out_driver;
+	}
+	dev_set_name(af_iucv_dev, "af_iucv");
+	af_iucv_dev->bus = &iucv_bus;
+	af_iucv_dev->parent = iucv_root;
+	af_iucv_dev->release = (void (*)(struct device *))kfree;
+	af_iucv_dev->driver = &af_iucv_driver;
+	err = device_register(af_iucv_dev);
+	if (err)
+		goto out_driver;
+
 	return 0;
 
+out_driver:
+	driver_unregister(&af_iucv_driver);
+out_sock:
+	sock_unregister(PF_IUCV);
 out_proto:
 	proto_unregister(&iucv_proto);
 out_iucv:
@@ -1270,6 +1768,8 @@ out:
 
 static void __exit afiucv_exit(void)
 {
+	device_unregister(af_iucv_dev);
+	driver_unregister(&af_iucv_driver);
 	sock_unregister(PF_IUCV);
 	proto_unregister(&iucv_proto);
 	iucv_unregister(&af_iucv_handler, 0);
diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
index a35240f61ec3..c833481d32e3 100644
--- a/net/iucv/iucv.c
+++ b/net/iucv/iucv.c
@@ -1,7 +1,8 @@
 /*
  * IUCV base infrastructure.
  *
- * Copyright 2001, 2006 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ * Copyright IBM Corp. 2001, 2009
+ *
  * Author(s):
  *    Original source:
  *	Alan Altmark (Alan_Altmark@us.ibm.com)	Sept. 2000
@@ -10,6 +11,8 @@
  *	Fritz Elfert (elfert@de.ibm.com, felfert@millenux.com)
  *    Rewritten for af_iucv:
  *	Martin Schwidefsky <schwidefsky@de.ibm.com>
+ *    PM functions:
+ *	Ursula Braun (ursula.braun@de.ibm.com)
  *
  * Documentation used:
  *    The original source
@@ -45,6 +48,7 @@
 #include <linux/err.h>
 #include <linux/device.h>
 #include <linux/cpu.h>
+#include <linux/reboot.h>
 #include <net/iucv/iucv.h>
 #include <asm/atomic.h>
 #include <asm/ebcdic.h>
@@ -75,9 +79,24 @@ static int iucv_bus_match(struct device *dev, struct device_driver *drv)
 	return 0;
 }
 
+static int iucv_pm_prepare(struct device *);
+static void iucv_pm_complete(struct device *);
+static int iucv_pm_freeze(struct device *);
+static int iucv_pm_thaw(struct device *);
+static int iucv_pm_restore(struct device *);
+
+static struct dev_pm_ops iucv_pm_ops = {
+	.prepare = iucv_pm_prepare,
+	.complete = iucv_pm_complete,
+	.freeze = iucv_pm_freeze,
+	.thaw = iucv_pm_thaw,
+	.restore = iucv_pm_restore,
+};
+
 struct bus_type iucv_bus = {
 	.name = "iucv",
 	.match = iucv_bus_match,
+	.pm = &iucv_pm_ops,
 };
 EXPORT_SYMBOL(iucv_bus);
 
@@ -147,6 +166,7 @@ enum iucv_command_codes {
 	IUCV_RESUME = 14,
 	IUCV_SEVER = 15,
 	IUCV_SETMASK = 16,
+	IUCV_SETCONTROLMASK = 17,
 };
 
 /*
@@ -280,6 +300,7 @@ union iucv_param {
  * Anchor for per-cpu IUCV command parameter block.
  */
 static union iucv_param *iucv_param[NR_CPUS];
+static union iucv_param *iucv_param_irq[NR_CPUS];
 
 /**
  * iucv_call_b2f0
@@ -358,11 +379,23 @@ static void iucv_allow_cpu(void *data)
 	 *	0x10 - Flag to allow priority message completion interrupts
 	 *	0x08 - Flag to allow IUCV control interrupts
 	 */
-	parm = iucv_param[cpu];
+	parm = iucv_param_irq[cpu];
 	memset(parm, 0, sizeof(union iucv_param));
 	parm->set_mask.ipmask = 0xf8;
 	iucv_call_b2f0(IUCV_SETMASK, parm);
 
+	/*
+	 * Enable all iucv control interrupts.
+	 * ipmask contains bits for the different interrupts
+	 *	0x80 - Flag to allow pending connections interrupts
+	 *	0x40 - Flag to allow connection complete interrupts
+	 *	0x20 - Flag to allow connection severed interrupts
+	 *	0x10 - Flag to allow connection quiesced interrupts
+	 *	0x08 - Flag to allow connection resumed interrupts
+	 */
+	memset(parm, 0, sizeof(union iucv_param));
+	parm->set_mask.ipmask = 0xf8;
+	iucv_call_b2f0(IUCV_SETCONTROLMASK, parm);
 	/* Set indication that iucv interrupts are allowed for this cpu. */
 	cpu_set(cpu, iucv_irq_cpumask);
 }
@@ -379,7 +412,7 @@ static void iucv_block_cpu(void *data)
 	union iucv_param *parm;
 
 	/* Disable all iucv interrupts. */
-	parm = iucv_param[cpu];
+	parm = iucv_param_irq[cpu];
 	memset(parm, 0, sizeof(union iucv_param));
 	iucv_call_b2f0(IUCV_SETMASK, parm);
 
@@ -388,6 +421,31 @@ static void iucv_block_cpu(void *data)
 }
 
 /**
+ * iucv_block_cpu_almost
+ * @data: unused
+ *
+ * Allow connection-severed interrupts only on this cpu.
+ */
+static void iucv_block_cpu_almost(void *data)
+{
+	int cpu = smp_processor_id();
+	union iucv_param *parm;
+
+	/* Allow iucv control interrupts only */
+	parm = iucv_param_irq[cpu];
+	memset(parm, 0, sizeof(union iucv_param));
+	parm->set_mask.ipmask = 0x08;
+	iucv_call_b2f0(IUCV_SETMASK, parm);
+	/* Allow iucv-severed interrupt only */
+	memset(parm, 0, sizeof(union iucv_param));
+	parm->set_mask.ipmask = 0x20;
+	iucv_call_b2f0(IUCV_SETCONTROLMASK, parm);
+
+	/* Clear indication that iucv interrupts are allowed for this cpu. */
+	cpu_clear(cpu, iucv_irq_cpumask);
+}
+
+/**
  * iucv_declare_cpu
  * @data: unused
  *
@@ -403,7 +461,7 @@ static void iucv_declare_cpu(void *data)
 		return;
 
 	/* Declare interrupt buffer. */
-	parm = iucv_param[cpu];
+	parm = iucv_param_irq[cpu];
 	memset(parm, 0, sizeof(union iucv_param));
 	parm->db.ipbfadr1 = virt_to_phys(iucv_irq_data[cpu]);
 	rc = iucv_call_b2f0(IUCV_DECLARE_BUFFER, parm);
@@ -460,7 +518,7 @@ static void iucv_retrieve_cpu(void *data)
 	iucv_block_cpu(NULL);
 
 	/* Retrieve interrupt buffer. */
-	parm = iucv_param[cpu];
+	parm = iucv_param_irq[cpu];
 	iucv_call_b2f0(IUCV_RETRIEVE_BUFFER, parm);
 
 	/* Clear indication that an iucv buffer exists for this cpu. */
@@ -574,11 +632,22 @@ static int __cpuinit iucv_cpu_notify(struct notifier_block *self,
 			iucv_irq_data[cpu] = NULL;
 			return NOTIFY_BAD;
 		}
+		iucv_param_irq[cpu] = kmalloc_node(sizeof(union iucv_param),
+					GFP_KERNEL|GFP_DMA, cpu_to_node(cpu));
+		if (!iucv_param_irq[cpu]) {
+			kfree(iucv_param[cpu]);
+			iucv_param[cpu] = NULL;
+			kfree(iucv_irq_data[cpu]);
+			iucv_irq_data[cpu] = NULL;
+			return NOTIFY_BAD;
+		}
 		break;
 	case CPU_UP_CANCELED:
 	case CPU_UP_CANCELED_FROZEN:
 	case CPU_DEAD:
 	case CPU_DEAD_FROZEN:
+		kfree(iucv_param_irq[cpu]);
+		iucv_param_irq[cpu] = NULL;
 		kfree(iucv_param[cpu]);
 		iucv_param[cpu] = NULL;
 		kfree(iucv_irq_data[cpu]);
@@ -625,7 +694,7 @@ static int iucv_sever_pathid(u16 pathid, u8 userdata[16])
 {
 	union iucv_param *parm;
 
-	parm = iucv_param[smp_processor_id()];
+	parm = iucv_param_irq[smp_processor_id()];
 	memset(parm, 0, sizeof(union iucv_param));
 	if (userdata)
 		memcpy(parm->ctrl.ipuser, userdata, sizeof(parm->ctrl.ipuser));
@@ -746,6 +815,28 @@ void iucv_unregister(struct iucv_handler *handler, int smp)
 }
 EXPORT_SYMBOL(iucv_unregister);
 
+static int iucv_reboot_event(struct notifier_block *this,
+			     unsigned long event, void *ptr)
+{
+	int i, rc;
+
+	get_online_cpus();
+	on_each_cpu(iucv_block_cpu, NULL, 1);
+	preempt_disable();
+	for (i = 0; i < iucv_max_pathid; i++) {
+		if (iucv_path_table[i])
+			rc = iucv_sever_pathid(i, NULL);
+	}
+	preempt_enable();
+	put_online_cpus();
+	iucv_disable();
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block iucv_reboot_notifier = {
+	.notifier_call = iucv_reboot_event,
+};
+
 /**
  * iucv_path_accept
  * @path: address of iucv path structure
@@ -765,6 +856,10 @@ int iucv_path_accept(struct iucv_path *path, struct iucv_handler *handler,
 	int rc;
 
 	local_bh_disable();
+	if (!cpu_isset(smp_processor_id(), iucv_buffer_cpumask)) {
+		rc = -EIO;
+		goto out;
+	}
 	/* Prepare parameter block. */
 	parm = iucv_param[smp_processor_id()];
 	memset(parm, 0, sizeof(union iucv_param));
@@ -780,6 +875,7 @@ int iucv_path_accept(struct iucv_path *path, struct iucv_handler *handler,
 		path->msglim = parm->ctrl.ipmsglim;
 		path->flags = parm->ctrl.ipflags1;
 	}
+out:
 	local_bh_enable();
 	return rc;
 }
@@ -809,6 +905,10 @@ int iucv_path_connect(struct iucv_path *path, struct iucv_handler *handler,
 
 	spin_lock_bh(&iucv_table_lock);
 	iucv_cleanup_queue();
+	if (!cpu_isset(smp_processor_id(), iucv_buffer_cpumask)) {
+		rc = -EIO;
+		goto out;
+	}
 	parm = iucv_param[smp_processor_id()];
 	memset(parm, 0, sizeof(union iucv_param));
 	parm->ctrl.ipmsglim = path->msglim;
@@ -843,6 +943,7 @@ int iucv_path_connect(struct iucv_path *path, struct iucv_handler *handler,
 			rc = -EIO;
 		}
 	}
+out:
 	spin_unlock_bh(&iucv_table_lock);
 	return rc;
 }
@@ -864,12 +965,17 @@ int iucv_path_quiesce(struct iucv_path *path, u8 userdata[16])
 	int rc;
 
 	local_bh_disable();
+	if (!cpu_isset(smp_processor_id(), iucv_buffer_cpumask)) {
+		rc = -EIO;
+		goto out;
+	}
 	parm = iucv_param[smp_processor_id()];
 	memset(parm, 0, sizeof(union iucv_param));
 	if (userdata)
 		memcpy(parm->ctrl.ipuser, userdata, sizeof(parm->ctrl.ipuser));
 	parm->ctrl.ippathid = path->pathid;
 	rc = iucv_call_b2f0(IUCV_QUIESCE, parm);
+out:
 	local_bh_enable();
 	return rc;
 }
@@ -891,12 +997,17 @@ int iucv_path_resume(struct iucv_path *path, u8 userdata[16])
 	int rc;
 
 	local_bh_disable();
+	if (!cpu_isset(smp_processor_id(), iucv_buffer_cpumask)) {
+		rc = -EIO;
+		goto out;
+	}
 	parm = iucv_param[smp_processor_id()];
 	memset(parm, 0, sizeof(union iucv_param));
 	if (userdata)
 		memcpy(parm->ctrl.ipuser, userdata, sizeof(parm->ctrl.ipuser));
 	parm->ctrl.ippathid = path->pathid;
 	rc = iucv_call_b2f0(IUCV_RESUME, parm);
+out:
 	local_bh_enable();
 	return rc;
 }
@@ -915,15 +1026,18 @@ int iucv_path_sever(struct iucv_path *path, u8 userdata[16])
 	int rc;
 
 	preempt_disable();
+	if (!cpu_isset(smp_processor_id(), iucv_buffer_cpumask)) {
+		rc = -EIO;
+		goto out;
+	}
 	if (iucv_active_cpu != smp_processor_id())
 		spin_lock_bh(&iucv_table_lock);
 	rc = iucv_sever_pathid(path->pathid, userdata);
-	if (!rc) {
-		iucv_path_table[path->pathid] = NULL;
-		list_del_init(&path->list);
-	}
+	iucv_path_table[path->pathid] = NULL;
+	list_del_init(&path->list);
 	if (iucv_active_cpu != smp_processor_id())
 		spin_unlock_bh(&iucv_table_lock);
+out:
 	preempt_enable();
 	return rc;
 }
@@ -946,6 +1060,10 @@ int iucv_message_purge(struct iucv_path *path, struct iucv_message *msg,
 	int rc;
 
 	local_bh_disable();
+	if (!cpu_isset(smp_processor_id(), iucv_buffer_cpumask)) {
+		rc = -EIO;
+		goto out;
+	}
 	parm = iucv_param[smp_processor_id()];
 	memset(parm, 0, sizeof(union iucv_param));
 	parm->purge.ippathid = path->pathid;
@@ -957,6 +1075,7 @@ int iucv_message_purge(struct iucv_path *path, struct iucv_message *msg,
 		msg->audit = (*(u32 *) &parm->purge.ipaudit) >> 8;
 		msg->tag = parm->purge.ipmsgtag;
 	}
+out:
 	local_bh_enable();
 	return rc;
 }
@@ -1033,6 +1152,10 @@ int __iucv_message_receive(struct iucv_path *path, struct iucv_message *msg,
 	if (msg->flags & IUCV_IPRMDATA)
 		return iucv_message_receive_iprmdata(path, msg, flags,
 						     buffer, size, residual);
+	if (!cpu_isset(smp_processor_id(), iucv_buffer_cpumask)) {
+		rc = -EIO;
+		goto out;
+	}
 	parm = iucv_param[smp_processor_id()];
 	memset(parm, 0, sizeof(union iucv_param));
 	parm->db.ipbfadr1 = (u32)(addr_t) buffer;
@@ -1048,6 +1171,7 @@ int __iucv_message_receive(struct iucv_path *path, struct iucv_message *msg,
 		if (residual)
 			*residual = parm->db.ipbfln1f;
 	}
+out:
 	return rc;
 }
 EXPORT_SYMBOL(__iucv_message_receive);
@@ -1101,6 +1225,10 @@ int iucv_message_reject(struct iucv_path *path, struct iucv_message *msg)
 	int rc;
 
 	local_bh_disable();
+	if (!cpu_isset(smp_processor_id(), iucv_buffer_cpumask)) {
+		rc = -EIO;
+		goto out;
+	}
 	parm = iucv_param[smp_processor_id()];
 	memset(parm, 0, sizeof(union iucv_param));
 	parm->db.ippathid = path->pathid;
@@ -1108,6 +1236,7 @@ int iucv_message_reject(struct iucv_path *path, struct iucv_message *msg)
 	parm->db.iptrgcls = msg->class;
 	parm->db.ipflags1 = (IUCV_IPTRGCLS | IUCV_IPFGMID | IUCV_IPFGPID);
 	rc = iucv_call_b2f0(IUCV_REJECT, parm);
+out:
 	local_bh_enable();
 	return rc;
 }
@@ -1135,6 +1264,10 @@ int iucv_message_reply(struct iucv_path *path, struct iucv_message *msg,
 	int rc;
 
 	local_bh_disable();
+	if (!cpu_isset(smp_processor_id(), iucv_buffer_cpumask)) {
+		rc = -EIO;
+		goto out;
+	}
 	parm = iucv_param[smp_processor_id()];
 	memset(parm, 0, sizeof(union iucv_param));
 	if (flags & IUCV_IPRMDATA) {
@@ -1152,6 +1285,7 @@ int iucv_message_reply(struct iucv_path *path, struct iucv_message *msg,
 		parm->db.iptrgcls = msg->class;
 	}
 	rc = iucv_call_b2f0(IUCV_REPLY, parm);
+out:
 	local_bh_enable();
 	return rc;
 }
@@ -1180,6 +1314,10 @@ int __iucv_message_send(struct iucv_path *path, struct iucv_message *msg,
 	union iucv_param *parm;
 	int rc;
 
+	if (!cpu_isset(smp_processor_id(), iucv_buffer_cpumask)) {
+		rc = -EIO;
+		goto out;
+	}
 	parm = iucv_param[smp_processor_id()];
 	memset(parm, 0, sizeof(union iucv_param));
 	if (flags & IUCV_IPRMDATA) {
@@ -1202,6 +1340,7 @@ int __iucv_message_send(struct iucv_path *path, struct iucv_message *msg,
 	rc = iucv_call_b2f0(IUCV_SEND, parm);
 	if (!rc)
 		msg->id = parm->db.ipmsgid;
+out:
 	return rc;
 }
 EXPORT_SYMBOL(__iucv_message_send);
@@ -1262,6 +1401,10 @@ int iucv_message_send2way(struct iucv_path *path, struct iucv_message *msg,
 	int rc;
 
 	local_bh_disable();
+	if (!cpu_isset(smp_processor_id(), iucv_buffer_cpumask)) {
+		rc = -EIO;
+		goto out;
+	}
 	parm = iucv_param[smp_processor_id()];
 	memset(parm, 0, sizeof(union iucv_param));
 	if (flags & IUCV_IPRMDATA) {
@@ -1287,6 +1430,7 @@ int iucv_message_send2way(struct iucv_path *path, struct iucv_message *msg,
 	rc = iucv_call_b2f0(IUCV_SEND, parm);
 	if (!rc)
 		msg->id = parm->db.ipmsgid;
+out:
 	local_bh_enable();
 	return rc;
 }
@@ -1378,6 +1522,8 @@ static void iucv_path_complete(struct iucv_irq_data *data)
 	struct iucv_path_complete *ipc = (void *) data;
 	struct iucv_path *path = iucv_path_table[ipc->ippathid];
 
+	if (path)
+		path->flags = ipc->ipflags1;
 	if (path && path->handler && path->handler->path_complete)
 		path->handler->path_complete(path, ipc->ipuser);
 }
@@ -1413,7 +1559,7 @@ static void iucv_path_severed(struct iucv_irq_data *data)
 	else {
 		iucv_sever_pathid(path->pathid, NULL);
 		iucv_path_table[path->pathid] = NULL;
-		list_del_init(&path->list);
+		list_del(&path->list);
 		iucv_path_free(path);
 	}
 }
@@ -1675,6 +1821,130 @@ static void iucv_external_interrupt(u16 code)
 	spin_unlock(&iucv_queue_lock);
 }
 
+static int iucv_pm_prepare(struct device *dev)
+{
+	int rc = 0;
+
+#ifdef CONFIG_PM_DEBUG
+	printk(KERN_INFO "iucv_pm_prepare\n");
+#endif
+	if (dev->driver && dev->driver->pm && dev->driver->pm->prepare)
+		rc = dev->driver->pm->prepare(dev);
+	return rc;
+}
+
+static void iucv_pm_complete(struct device *dev)
+{
+#ifdef CONFIG_PM_DEBUG
+	printk(KERN_INFO "iucv_pm_complete\n");
+#endif
+	if (dev->driver && dev->driver->pm && dev->driver->pm->complete)
+		dev->driver->pm->complete(dev);
+}
+
+/**
+ * iucv_path_table_empty() - determine if iucv path table is empty
+ *
+ * Returns 0 if there are still iucv pathes defined
+ *	   1 if there are no iucv pathes defined
+ */
+int iucv_path_table_empty(void)
+{
+	int i;
+
+	for (i = 0; i < iucv_max_pathid; i++) {
+		if (iucv_path_table[i])
+			return 0;
+	}
+	return 1;
+}
+
+/**
+ * iucv_pm_freeze() - Freeze PM callback
+ * @dev:	iucv-based device
+ *
+ * disable iucv interrupts
+ * invoke callback function of the iucv-based driver
+ * shut down iucv, if no iucv-pathes are established anymore
+ */
+static int iucv_pm_freeze(struct device *dev)
+{
+	int cpu;
+	int rc = 0;
+
+#ifdef CONFIG_PM_DEBUG
+	printk(KERN_WARNING "iucv_pm_freeze\n");
+#endif
+	for_each_cpu_mask_nr(cpu, iucv_irq_cpumask)
+		smp_call_function_single(cpu, iucv_block_cpu_almost, NULL, 1);
+	if (dev->driver && dev->driver->pm && dev->driver->pm->freeze)
+		rc = dev->driver->pm->freeze(dev);
+	if (iucv_path_table_empty())
+		iucv_disable();
+	return rc;
+}
+
+/**
+ * iucv_pm_thaw() - Thaw PM callback
+ * @dev:	iucv-based device
+ *
+ * make iucv ready for use again: allocate path table, declare interrupt buffers
+ *				  and enable iucv interrupts
+ * invoke callback function of the iucv-based driver
+ */
+static int iucv_pm_thaw(struct device *dev)
+{
+	int rc = 0;
+
+#ifdef CONFIG_PM_DEBUG
+	printk(KERN_WARNING "iucv_pm_thaw\n");
+#endif
+	if (!iucv_path_table) {
+		rc = iucv_enable();
+		if (rc)
+			goto out;
+	}
+	if (cpus_empty(iucv_irq_cpumask)) {
+		if (iucv_nonsmp_handler)
+			/* enable interrupts on one cpu */
+			iucv_allow_cpu(NULL);
+		else
+			/* enable interrupts on all cpus */
+			iucv_setmask_mp();
+	}
+	if (dev->driver && dev->driver->pm && dev->driver->pm->thaw)
+		rc = dev->driver->pm->thaw(dev);
+out:
+	return rc;
+}
+
+/**
+ * iucv_pm_restore() - Restore PM callback
+ * @dev:	iucv-based device
+ *
+ * make iucv ready for use again: allocate path table, declare interrupt buffers
+ *				  and enable iucv interrupts
+ * invoke callback function of the iucv-based driver
+ */
+static int iucv_pm_restore(struct device *dev)
+{
+	int rc = 0;
+
+#ifdef CONFIG_PM_DEBUG
+	printk(KERN_WARNING "iucv_pm_restore %p\n", iucv_path_table);
+#endif
+	if (cpus_empty(iucv_irq_cpumask)) {
+		rc = iucv_query_maxconn();
+		rc = iucv_enable();
+		if (rc)
+			goto out;
+	}
+	if (dev->driver && dev->driver->pm && dev->driver->pm->restore)
+		rc = dev->driver->pm->restore(dev);
+out:
+	return rc;
+}
+
 /**
  * iucv_init
  *
@@ -1717,23 +1987,37 @@ static int __init iucv_init(void)
 			rc = -ENOMEM;
 			goto out_free;
 		}
+		iucv_param_irq[cpu] = kmalloc_node(sizeof(union iucv_param),
+				  GFP_KERNEL|GFP_DMA, cpu_to_node(cpu));
+		if (!iucv_param_irq[cpu]) {
+			rc = -ENOMEM;
+			goto out_free;
+		}
+
 	}
 	rc = register_hotcpu_notifier(&iucv_cpu_notifier);
 	if (rc)
 		goto out_free;
+	rc = register_reboot_notifier(&iucv_reboot_notifier);
+	if (rc)
+		goto out_cpu;
 	ASCEBC(iucv_error_no_listener, 16);
 	ASCEBC(iucv_error_no_memory, 16);
 	ASCEBC(iucv_error_pathid, 16);
 	iucv_available = 1;
 	rc = bus_register(&iucv_bus);
 	if (rc)
-		goto out_cpu;
+		goto out_reboot;
 	return 0;
 
+out_reboot:
+	unregister_reboot_notifier(&iucv_reboot_notifier);
 out_cpu:
 	unregister_hotcpu_notifier(&iucv_cpu_notifier);
 out_free:
 	for_each_possible_cpu(cpu) {
+		kfree(iucv_param_irq[cpu]);
+		iucv_param_irq[cpu] = NULL;
 		kfree(iucv_param[cpu]);
 		iucv_param[cpu] = NULL;
 		kfree(iucv_irq_data[cpu]);
@@ -1762,8 +2046,11 @@ static void __exit iucv_exit(void)
 	list_for_each_entry_safe(p, n, &iucv_work_queue, list)
 		kfree(p);
 	spin_unlock_irq(&iucv_queue_lock);
+	unregister_reboot_notifier(&iucv_reboot_notifier);
 	unregister_hotcpu_notifier(&iucv_cpu_notifier);
 	for_each_possible_cpu(cpu) {
+		kfree(iucv_param_irq[cpu]);
+		iucv_param_irq[cpu] = NULL;
 		kfree(iucv_param[cpu]);
 		iucv_param[cpu] = NULL;
 		kfree(iucv_irq_data[cpu]);
diff --git a/net/key/af_key.c b/net/key/af_key.c
index 643c1be2d02e..dba9abd27f90 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -3662,8 +3662,8 @@ static int pfkey_seq_show(struct seq_file *f, void *v)
 		seq_printf(f ,"%p %-6d %-6u %-6u %-6u %-6lu\n",
 			       s,
 			       atomic_read(&s->sk_refcnt),
-			       atomic_read(&s->sk_rmem_alloc),
-			       atomic_read(&s->sk_wmem_alloc),
+			       sk_rmem_alloc_get(s),
+			       sk_wmem_alloc_get(s),
 			       sock_i_uid(s),
 			       sock_i_ino(s)
 			       );
diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
index febae702685c..9208cf5f2bd5 100644
--- a/net/llc/af_llc.c
+++ b/net/llc/af_llc.c
@@ -935,7 +935,7 @@ static int llc_ui_getname(struct socket *sock, struct sockaddr *uaddr,
 
 		if (llc->dev) {
 			sllc.sllc_arphrd = llc->dev->type;
-			memcpy(&sllc.sllc_mac, &llc->dev->dev_addr,
+			memcpy(&sllc.sllc_mac, llc->dev->dev_addr,
 			       IFHWADDRLEN);
 		}
 	}
diff --git a/net/llc/llc_conn.c b/net/llc/llc_conn.c
index 3477624a4906..c6bab39b018e 100644
--- a/net/llc/llc_conn.c
+++ b/net/llc/llc_conn.c
@@ -79,10 +79,6 @@ int llc_conn_state_process(struct sock *sk, struct sk_buff *skb)
 
 	if (unlikely(!ev->ind_prim && !ev->cfm_prim)) {
 		/* indicate or confirm not required */
-		/* XXX this is not very pretty, perhaps we should store
-		 * XXX indicate/confirm-needed state in the llc_conn_state_ev
-		 * XXX control block of the SKB instead? -DaveM
-		 */
 		if (!skb->next)
 			goto out_kfree_skb;
 		goto out_skb_put;
diff --git a/net/llc/llc_proc.c b/net/llc/llc_proc.c
index d208b3396d94..f97be471fe2e 100644
--- a/net/llc/llc_proc.c
+++ b/net/llc/llc_proc.c
@@ -134,8 +134,8 @@ static int llc_seq_socket_show(struct seq_file *seq, void *v)
 	seq_printf(seq, "@%02X ", llc->sap->laddr.lsap);
 	llc_ui_format_mac(seq, llc->daddr.mac);
 	seq_printf(seq, "@%02X %8d %8d %2d %3d %4d\n", llc->daddr.lsap,
-		   atomic_read(&sk->sk_wmem_alloc),
-		   atomic_read(&sk->sk_rmem_alloc) - llc->copied_seq,
+		   sk_wmem_alloc_get(sk),
+		   sk_rmem_alloc_get(sk) - llc->copied_seq,
 		   sk->sk_state,
 		   sk->sk_socket ? SOCK_INODE(sk->sk_socket)->i_uid : -1,
 		   llc->link);
diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig
index ecc3faf9f11a..ba2643a43c73 100644
--- a/net/mac80211/Kconfig
+++ b/net/mac80211/Kconfig
@@ -1,16 +1,35 @@
 config MAC80211
 	tristate "Generic IEEE 802.11 Networking Stack (mac80211)"
+	depends on CFG80211
 	select CRYPTO
 	select CRYPTO_ECB
 	select CRYPTO_ARC4
 	select CRYPTO_AES
 	select CRC32
 	select WIRELESS_EXT
-	select CFG80211
 	---help---
 	  This option enables the hardware independent IEEE 802.11
 	  networking stack.
 
+comment "CFG80211 needs to be enabled for MAC80211"
+	depends on CFG80211=n
+
+config MAC80211_DEFAULT_PS
+	bool "enable powersave by default"
+	depends on MAC80211
+	default y
+	help
+	  This option enables powersave mode by default.
+
+	  If this causes your applications to misbehave you should fix your
+	  applications instead -- they need to register their network
+	  latency requirement, see Documentation/power/pm_qos_interface.txt.
+
+config MAC80211_DEFAULT_PS_VALUE
+	int
+	default 1 if MAC80211_DEFAULT_PS
+	default 0
+
 menu "Rate control algorithm selection"
 	depends on MAC80211 != n
 
diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index 07656d830bc4..bc064d7933ff 100644
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -16,12 +16,12 @@
 #include <linux/ieee80211.h>
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 
 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
 				    u16 initiator, u16 reason)
 {
 	struct ieee80211_local *local = sta->local;
-	struct ieee80211_hw *hw = &local->hw;
 	int i;
 
 	/* check if TID is in operational state */
@@ -41,8 +41,8 @@ void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
 	       sta->sta.addr, tid);
 #endif /* CONFIG_MAC80211_HT_DEBUG */
 
-	if (local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_STOP,
-				     &sta->sta, tid, NULL))
+	if (drv_ampdu_action(local, IEEE80211_AMPDU_RX_STOP,
+			     &sta->sta, tid, NULL))
 		printk(KERN_DEBUG "HW problem - can not stop rx "
 				"aggregation for tid %d\n", tid);
 
@@ -68,6 +68,7 @@ void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
 	spin_lock_bh(&sta->lock);
 	/* free resources */
 	kfree(sta->ampdu_mlme.tid_rx[tid]->reorder_buf);
+	kfree(sta->ampdu_mlme.tid_rx[tid]->reorder_time);
 
 	if (!sta->ampdu_mlme.tid_rx[tid]->shutdown) {
 		kfree(sta->ampdu_mlme.tid_rx[tid]);
@@ -268,19 +269,23 @@ void ieee80211_process_addba_request(struct ieee80211_local *local,
 	/* prepare reordering buffer */
 	tid_agg_rx->reorder_buf =
 		kcalloc(buf_size, sizeof(struct sk_buff *), GFP_ATOMIC);
-	if (!tid_agg_rx->reorder_buf) {
+	tid_agg_rx->reorder_time =
+		kcalloc(buf_size, sizeof(unsigned long), GFP_ATOMIC);
+	if (!tid_agg_rx->reorder_buf || !tid_agg_rx->reorder_time) {
 #ifdef CONFIG_MAC80211_HT_DEBUG
 		if (net_ratelimit())
 			printk(KERN_ERR "can not allocate reordering buffer "
 			       "to tid %d\n", tid);
 #endif
+		kfree(tid_agg_rx->reorder_buf);
+		kfree(tid_agg_rx->reorder_time);
 		kfree(sta->ampdu_mlme.tid_rx[tid]);
+		sta->ampdu_mlme.tid_rx[tid] = NULL;
 		goto end;
 	}
 
-	if (local->ops->ampdu_action)
-		ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_START,
-					       &sta->sta, tid, &start_seq_num);
+	ret = drv_ampdu_action(local, IEEE80211_AMPDU_RX_START,
+			       &sta->sta, tid, &start_seq_num);
 #ifdef CONFIG_MAC80211_HT_DEBUG
 	printk(KERN_DEBUG "Rx A-MPDU request on tid %d result %d\n", tid, ret);
 #endif /* CONFIG_MAC80211_HT_DEBUG */
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 947aaaad35d2..9e5762ad307d 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -16,6 +16,7 @@
 #include <linux/ieee80211.h>
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "wme.h"
 
 /**
@@ -131,11 +132,14 @@ static int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
 
 	state = &sta->ampdu_mlme.tid_state_tx[tid];
 
+	if (*state == HT_AGG_STATE_OPERATIONAL)
+		sta->ampdu_mlme.addba_req_num[tid] = 0;
+
 	*state = HT_AGG_STATE_REQ_STOP_BA_MSK |
 		(initiator << HT_AGG_STATE_INITIATOR_SHIFT);
 
-	ret = local->ops->ampdu_action(&local->hw, IEEE80211_AMPDU_TX_STOP,
-				       &sta->sta, tid, NULL);
+	ret = drv_ampdu_action(local, IEEE80211_AMPDU_TX_STOP,
+			       &sta->sta, tid, NULL);
 
 	/* HW shall not deny going back to legacy */
 	if (WARN_ON(ret)) {
@@ -306,8 +310,8 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 
 	start_seq_num = sta->tid_seq[tid];
 
-	ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_TX_START,
-				       &sta->sta, tid, &start_seq_num);
+	ret = drv_ampdu_action(local, IEEE80211_AMPDU_TX_START,
+			       &sta->sta, tid, &start_seq_num);
 
 	if (ret) {
 #ifdef CONFIG_MAC80211_HT_DEBUG
@@ -336,6 +340,7 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 			 sta->ampdu_mlme.tid_tx[tid]->dialog_token,
 			 sta->ampdu_mlme.tid_tx[tid]->ssn,
 			 0x40, 5000);
+	sta->ampdu_mlme.addba_req_num[tid]++;
 	/* activate the timer for the recipient's addBA response */
 	sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.expires =
 				jiffies + ADDBA_RESP_INTERVAL;
@@ -418,8 +423,8 @@ static void ieee80211_agg_tx_operational(struct ieee80211_local *local,
 	ieee80211_agg_splice_finish(local, sta, tid);
 	spin_unlock(&local->ampdu_lock);
 
-	local->ops->ampdu_action(&local->hw, IEEE80211_AMPDU_TX_OPERATIONAL,
-				 &sta->sta, tid, NULL);
+	drv_ampdu_action(local, IEEE80211_AMPDU_TX_OPERATIONAL,
+			 &sta->sta, tid, NULL);
 }
 
 void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid)
@@ -605,7 +610,6 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid)
 
 	*state = HT_AGG_STATE_IDLE;
 	/* from now on packets are no longer put onto sta->pending */
-	sta->ampdu_mlme.addba_req_num[tid] = 0;
 	kfree(sta->ampdu_mlme.tid_tx[tid]);
 	sta->ampdu_mlme.tid_tx[tid] = NULL;
 
@@ -688,7 +692,6 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local,
 
 		sta->ampdu_mlme.addba_req_num[tid] = 0;
 	} else {
-		sta->ampdu_mlme.addba_req_num[tid]++;
 		___ieee80211_stop_tx_ba_session(sta, tid, WLAN_BACK_INITIATOR);
 	}
 	spin_unlock_bh(&sta->lock);
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index e677b751d468..3f47276caeb8 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -13,6 +13,7 @@
 #include <linux/rcupdate.h>
 #include <net/cfg80211.h>
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "cfg.h"
 #include "rate.h"
 #include "mesh.h"
@@ -111,7 +112,7 @@ static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
 }
 
 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
-			     u8 key_idx, u8 *mac_addr,
+			     u8 key_idx, const u8 *mac_addr,
 			     struct key_params *params)
 {
 	struct ieee80211_sub_if_data *sdata;
@@ -140,7 +141,8 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 		return -EINVAL;
 	}
 
-	key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key);
+	key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key,
+				  params->seq_len, params->seq);
 	if (!key)
 		return -ENOMEM;
 
@@ -165,7 +167,7 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 }
 
 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
-			     u8 key_idx, u8 *mac_addr)
+			     u8 key_idx, const u8 *mac_addr)
 {
 	struct ieee80211_sub_if_data *sdata;
 	struct sta_info *sta;
@@ -207,7 +209,7 @@ static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 }
 
 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
-			     u8 key_idx, u8 *mac_addr, void *cookie,
+			     u8 key_idx, const u8 *mac_addr, void *cookie,
 			     void (*callback)(void *cookie,
 					      struct key_params *params))
 {
@@ -245,12 +247,10 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 		iv32 = key->u.tkip.tx.iv32;
 		iv16 = key->u.tkip.tx.iv16;
 
-		if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
-		    sdata->local->ops->get_tkip_seq)
-			sdata->local->ops->get_tkip_seq(
-				local_to_hw(sdata->local),
-				key->conf.hw_key_idx,
-				&iv32, &iv16);
+		if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
+			drv_get_tkip_seq(sdata->local,
+					 key->conf.hw_key_idx,
+					 &iv32, &iv16);
 
 		seq[0] = iv16 & 0xff;
 		seq[1] = (iv16 >> 8) & 0xff;
@@ -451,18 +451,11 @@ static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 	 * This is a kludge. beacon interval should really be part
 	 * of the beacon information.
 	 */
-	if (params->interval && (sdata->local->hw.conf.beacon_int !=
-				 params->interval)) {
-		sdata->local->hw.conf.beacon_int = params->interval;
-		err = ieee80211_hw_config(sdata->local,
-					IEEE80211_CONF_CHANGE_BEACON_INTERVAL);
-		if (err < 0)
-			return err;
-		/*
-		 * We updated some parameter so if below bails out
-		 * it's not an error.
-		 */
-		err = 0;
+	if (params->interval &&
+	    (sdata->vif.bss_conf.beacon_int != params->interval)) {
+		sdata->vif.bss_conf.beacon_int = params->interval;
+		ieee80211_bss_info_change_notify(sdata,
+						 BSS_CHANGED_BEACON_INT);
 	}
 
 	/* Need to have a beacon head if we don't have one yet */
@@ -528,8 +521,9 @@ static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 
 	kfree(old);
 
-	return ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON |
-					  IEEE80211_IFCC_BEACON_ENABLED);
+	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
+						BSS_CHANGED_BEACON);
+	return 0;
 }
 
 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
@@ -580,7 +574,8 @@ static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
 	synchronize_rcu();
 	kfree(old);
 
-	return ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON_ENABLED);
+	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
+	return 0;
 }
 
 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
@@ -635,34 +630,45 @@ static void sta_apply_parameters(struct ieee80211_local *local,
 	int i, j;
 	struct ieee80211_supported_band *sband;
 	struct ieee80211_sub_if_data *sdata = sta->sdata;
+	u32 mask, set;
 
 	sband = local->hw.wiphy->bands[local->oper_channel->band];
 
-	/*
-	 * FIXME: updating the flags is racy when this function is
-	 *	  called from ieee80211_change_station(), this will
-	 *	  be resolved in a future patch.
-	 */
+	spin_lock_bh(&sta->lock);
+	mask = params->sta_flags_mask;
+	set = params->sta_flags_set;
 
-	if (params->station_flags & STATION_FLAG_CHANGED) {
-		spin_lock_bh(&sta->lock);
+	if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
 		sta->flags &= ~WLAN_STA_AUTHORIZED;
-		if (params->station_flags & STATION_FLAG_AUTHORIZED)
+		if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
 			sta->flags |= WLAN_STA_AUTHORIZED;
+	}
 
+	if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
 		sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
-		if (params->station_flags & STATION_FLAG_SHORT_PREAMBLE)
+		if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
 			sta->flags |= WLAN_STA_SHORT_PREAMBLE;
+	}
 
+	if (mask & BIT(NL80211_STA_FLAG_WME)) {
 		sta->flags &= ~WLAN_STA_WME;
-		if (params->station_flags & STATION_FLAG_WME)
+		if (set & BIT(NL80211_STA_FLAG_WME))
 			sta->flags |= WLAN_STA_WME;
+	}
 
+	if (mask & BIT(NL80211_STA_FLAG_MFP)) {
 		sta->flags &= ~WLAN_STA_MFP;
-		if (params->station_flags & STATION_FLAG_MFP)
+		if (set & BIT(NL80211_STA_FLAG_MFP))
 			sta->flags |= WLAN_STA_MFP;
-		spin_unlock_bh(&sta->lock);
 	}
+	spin_unlock_bh(&sta->lock);
+
+	/*
+	 * cfg80211 validates this (1-2007) and allows setting the AID
+	 * only when creating a new station entry
+	 */
+	if (params->aid)
+		sta->sta.aid = params->aid;
 
 	/*
 	 * FIXME: updating the following information is racy when this
@@ -671,12 +677,6 @@ static void sta_apply_parameters(struct ieee80211_local *local,
 	 *	  maybe we should just reject attemps to change it.
 	 */
 
-	if (params->aid) {
-		sta->sta.aid = params->aid;
-		if (sta->sta.aid > IEEE80211_MAX_AID)
-			sta->sta.aid = 0; /* XXX: should this be an error? */
-	}
-
 	if (params->listen_interval >= 0)
 		sta->listen_interval = params->listen_interval;
 
@@ -1120,10 +1120,10 @@ static int ieee80211_set_txq_params(struct wiphy *wiphy,
 	p.cw_max = params->cwmax;
 	p.cw_min = params->cwmin;
 	p.txop = params->txop;
-	if (local->ops->conf_tx(local_to_hw(local), params->queue, &p)) {
+	if (drv_conf_tx(local, params->queue, &p)) {
 		printk(KERN_DEBUG "%s: failed to set TX queue "
-		       "parameters for queue %d\n", local->mdev->name,
-		       params->queue);
+		       "parameters for queue %d\n",
+		       wiphy_name(local->hw.wiphy), params->queue);
 		return -EINVAL;
 	}
 
@@ -1167,7 +1167,8 @@ static int ieee80211_scan(struct wiphy *wiphy,
 
 	if (sdata->vif.type != NL80211_IFTYPE_STATION &&
 	    sdata->vif.type != NL80211_IFTYPE_ADHOC &&
-	    sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
+	    sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
+	    (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
 		return -EOPNOTSUPP;
 
 	return ieee80211_request_scan(sdata, req);
@@ -1255,9 +1256,22 @@ static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
 		sdata->u.mgd.flags |= IEEE80211_STA_AUTO_SSID_SEL;
 
 	ret = ieee80211_sta_set_extra_ie(sdata, req->ie, req->ie_len);
-	if (ret)
+	if (ret && ret != -EALREADY)
 		return ret;
 
+	if (req->use_mfp) {
+		sdata->u.mgd.mfp = IEEE80211_MFP_REQUIRED;
+		sdata->u.mgd.flags |= IEEE80211_STA_MFP_ENABLED;
+	} else {
+		sdata->u.mgd.mfp = IEEE80211_MFP_DISABLED;
+		sdata->u.mgd.flags &= ~IEEE80211_STA_MFP_ENABLED;
+	}
+
+	if (req->control_port)
+		sdata->u.mgd.flags |= IEEE80211_STA_CONTROL_PORT;
+	else
+		sdata->u.mgd.flags &= ~IEEE80211_STA_CONTROL_PORT;
+
 	sdata->u.mgd.flags |= IEEE80211_STA_EXT_SME;
 	sdata->u.mgd.state = IEEE80211_STA_MLME_ASSOCIATE;
 	ieee80211_sta_req_auth(sdata);
@@ -1267,25 +1281,106 @@ static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
 			    struct cfg80211_deauth_request *req)
 {
-	struct ieee80211_sub_if_data *sdata;
-
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
-	/* TODO: req->ie */
+	/* TODO: req->ie, req->peer_addr */
 	return ieee80211_sta_deauthenticate(sdata, req->reason_code);
 }
 
 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
 			      struct cfg80211_disassoc_request *req)
 {
-	struct ieee80211_sub_if_data *sdata;
-
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
-	/* TODO: req->ie */
+	/* TODO: req->ie, req->peer_addr */
 	return ieee80211_sta_disassociate(sdata, req->reason_code);
 }
 
+static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
+			       struct cfg80211_ibss_params *params)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+	return ieee80211_ibss_join(sdata, params);
+}
+
+static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+	return ieee80211_ibss_leave(sdata);
+}
+
+static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
+{
+	struct ieee80211_local *local = wiphy_priv(wiphy);
+	int err;
+
+	if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
+		err = drv_set_rts_threshold(local, wiphy->rts_threshold);
+
+		if (err)
+			return err;
+	}
+
+	if (changed & WIPHY_PARAM_RETRY_SHORT)
+		local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
+	if (changed & WIPHY_PARAM_RETRY_LONG)
+		local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
+	if (changed &
+	    (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
+		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
+
+	return 0;
+}
+
+static int ieee80211_set_tx_power(struct wiphy *wiphy,
+				  enum tx_power_setting type, int dbm)
+{
+	struct ieee80211_local *local = wiphy_priv(wiphy);
+	struct ieee80211_channel *chan = local->hw.conf.channel;
+	u32 changes = 0;
+
+	switch (type) {
+	case TX_POWER_AUTOMATIC:
+		local->user_power_level = -1;
+		break;
+	case TX_POWER_LIMITED:
+		if (dbm < 0)
+			return -EINVAL;
+		local->user_power_level = dbm;
+		break;
+	case TX_POWER_FIXED:
+		if (dbm < 0)
+			return -EINVAL;
+		/* TODO: move to cfg80211 when it knows the channel */
+		if (dbm > chan->max_power)
+			return -EINVAL;
+		local->user_power_level = dbm;
+		break;
+	}
+
+	ieee80211_hw_config(local, changes);
+
+	return 0;
+}
+
+static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
+{
+	struct ieee80211_local *local = wiphy_priv(wiphy);
+
+	*dbm = local->hw.conf.power_level;
+
+	return 0;
+}
+
+static void ieee80211_rfkill_poll(struct wiphy *wiphy)
+{
+	struct ieee80211_local *local = wiphy_priv(wiphy);
+
+	drv_rfkill_poll(local);
+}
+
 struct cfg80211_ops mac80211_config_ops = {
 	.add_virtual_intf = ieee80211_add_iface,
 	.del_virtual_intf = ieee80211_del_iface,
@@ -1322,4 +1417,10 @@ struct cfg80211_ops mac80211_config_ops = {
 	.assoc = ieee80211_assoc,
 	.deauth = ieee80211_deauth,
 	.disassoc = ieee80211_disassoc,
+	.join_ibss = ieee80211_join_ibss,
+	.leave_ibss = ieee80211_leave_ibss,
+	.set_wiphy_params = ieee80211_set_wiphy_params,
+	.set_tx_power = ieee80211_set_tx_power,
+	.get_tx_power = ieee80211_get_tx_power,
+	.rfkill_poll = ieee80211_rfkill_poll,
 };
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index 210b9b6fecd2..6c439cd5ccea 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -10,6 +10,7 @@
 #include <linux/debugfs.h>
 #include <linux/rtnetlink.h>
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "rate.h"
 #include "debugfs.h"
 
@@ -51,14 +52,6 @@ static const struct file_operations name## _ops = {			\
 
 DEBUGFS_READONLY_FILE(frequency, 20, "%d",
 		      local->hw.conf.channel->center_freq);
-DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d",
-		      local->rts_threshold);
-DEBUGFS_READONLY_FILE(fragmentation_threshold, 20, "%d",
-		      local->fragmentation_threshold);
-DEBUGFS_READONLY_FILE(short_retry_limit, 20, "%d",
-		      local->hw.conf.short_frame_max_tx_count);
-DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d",
-		      local->hw.conf.long_frame_max_tx_count);
 DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d",
 		      local->total_ps_buffered);
 DEBUGFS_READONLY_FILE(wep_iv, 20, "%#08x",
@@ -70,11 +63,10 @@ static ssize_t tsf_read(struct file *file, char __user *user_buf,
 			     size_t count, loff_t *ppos)
 {
 	struct ieee80211_local *local = file->private_data;
-	u64 tsf = 0;
+	u64 tsf;
 	char buf[100];
 
-	if (local->ops->get_tsf)
-		tsf = local->ops->get_tsf(local_to_hw(local));
+	tsf = drv_get_tsf(local);
 
 	snprintf(buf, sizeof(buf), "0x%016llx\n", (unsigned long long) tsf);
 
@@ -97,13 +89,13 @@ static ssize_t tsf_write(struct file *file,
 
 	if (strncmp(buf, "reset", 5) == 0) {
 		if (local->ops->reset_tsf) {
-			local->ops->reset_tsf(local_to_hw(local));
+			drv_reset_tsf(local);
 			printk(KERN_INFO "%s: debugfs reset TSF\n", wiphy_name(local->hw.wiphy));
 		}
 	} else {
 		tsf = simple_strtoul(buf, NULL, 0);
 		if (local->ops->set_tsf) {
-			local->ops->set_tsf(local_to_hw(local), tsf);
+			drv_set_tsf(local, tsf);
 			printk(KERN_INFO "%s: debugfs set TSF to %#018llx\n", wiphy_name(local->hw.wiphy), tsf);
 		}
 	}
@@ -135,6 +127,65 @@ static const struct file_operations reset_ops = {
 	.open = mac80211_open_file_generic,
 };
 
+static ssize_t noack_read(struct file *file, char __user *user_buf,
+			  size_t count, loff_t *ppos)
+{
+	struct ieee80211_local *local = file->private_data;
+	int res;
+	char buf[10];
+
+	res = scnprintf(buf, sizeof(buf), "%d\n", local->wifi_wme_noack_test);
+
+	return simple_read_from_buffer(user_buf, count, ppos, buf, res);
+}
+
+static ssize_t noack_write(struct file *file,
+			   const char __user *user_buf,
+			   size_t count, loff_t *ppos)
+{
+	struct ieee80211_local *local = file->private_data;
+	char buf[10];
+	size_t len;
+
+	len = min(count, sizeof(buf) - 1);
+	if (copy_from_user(buf, user_buf, len))
+		return -EFAULT;
+	buf[len] = '\0';
+
+	local->wifi_wme_noack_test = !!simple_strtoul(buf, NULL, 0);
+
+	return count;
+}
+
+static const struct file_operations noack_ops = {
+	.read = noack_read,
+	.write = noack_write,
+	.open = mac80211_open_file_generic
+};
+
+static ssize_t queues_read(struct file *file, char __user *user_buf,
+			   size_t count, loff_t *ppos)
+{
+	struct ieee80211_local *local = file->private_data;
+	unsigned long flags;
+	char buf[IEEE80211_MAX_QUEUES * 20];
+	int q, res = 0;
+
+	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+	for (q = 0; q < local->hw.queues; q++)
+		res += sprintf(buf + res, "%02d: %#.8lx/%d\n", q,
+				local->queue_stop_reasons[q],
+				__netif_subqueue_stopped(local->mdev, q));
+	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+
+	return simple_read_from_buffer(user_buf, count, ppos, buf, res);
+}
+
+static const struct file_operations queues_ops = {
+	.read = queues_read,
+	.open = mac80211_open_file_generic
+};
+
 /* statistics stuff */
 
 #define DEBUGFS_STATS_FILE(name, buflen, fmt, value...)			\
@@ -150,14 +201,12 @@ static ssize_t format_devstat_counter(struct ieee80211_local *local,
 	char buf[20];
 	int res;
 
-	if (!local->ops->get_stats)
-		return -EOPNOTSUPP;
-
 	rtnl_lock();
-	res = local->ops->get_stats(local_to_hw(local), &stats);
+	res = drv_get_stats(local, &stats);
 	rtnl_unlock();
-	if (!res)
-		res = printvalue(&stats, buf, sizeof(buf));
+	if (res)
+		return res;
+	res = printvalue(&stats, buf, sizeof(buf));
 	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
 }
 
@@ -269,14 +318,12 @@ void debugfs_hw_add(struct ieee80211_local *local)
 	local->debugfs.keys = debugfs_create_dir("keys", phyd);
 
 	DEBUGFS_ADD(frequency);
-	DEBUGFS_ADD(rts_threshold);
-	DEBUGFS_ADD(fragmentation_threshold);
-	DEBUGFS_ADD(short_retry_limit);
-	DEBUGFS_ADD(long_retry_limit);
 	DEBUGFS_ADD(total_ps_buffered);
 	DEBUGFS_ADD(wep_iv);
 	DEBUGFS_ADD(tsf);
+	DEBUGFS_ADD(queues);
 	DEBUGFS_ADD_MODE(reset, 0200);
+	DEBUGFS_ADD(noack);
 
 	statsd = debugfs_create_dir("statistics", phyd);
 	local->debugfs.statistics = statsd;
@@ -324,14 +371,12 @@ void debugfs_hw_add(struct ieee80211_local *local)
 void debugfs_hw_del(struct ieee80211_local *local)
 {
 	DEBUGFS_DEL(frequency);
-	DEBUGFS_DEL(rts_threshold);
-	DEBUGFS_DEL(fragmentation_threshold);
-	DEBUGFS_DEL(short_retry_limit);
-	DEBUGFS_DEL(long_retry_limit);
 	DEBUGFS_DEL(total_ps_buffered);
 	DEBUGFS_DEL(wep_iv);
 	DEBUGFS_DEL(tsf);
+	DEBUGFS_DEL(queues);
 	DEBUGFS_DEL(reset);
+	DEBUGFS_DEL(noack);
 
 	DEBUGFS_STATS_DEL(transmitted_fragment_count);
 	DEBUGFS_STATS_DEL(multicast_transmitted_frame_count);
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
new file mode 100644
index 000000000000..b13446afd48f
--- /dev/null
+++ b/net/mac80211/driver-ops.h
@@ -0,0 +1,191 @@
+#ifndef __MAC80211_DRIVER_OPS
+#define __MAC80211_DRIVER_OPS
+
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+
+static inline int drv_tx(struct ieee80211_local *local, struct sk_buff *skb)
+{
+	return local->ops->tx(&local->hw, skb);
+}
+
+static inline int drv_start(struct ieee80211_local *local)
+{
+	return local->ops->start(&local->hw);
+}
+
+static inline void drv_stop(struct ieee80211_local *local)
+{
+	local->ops->stop(&local->hw);
+}
+
+static inline int drv_add_interface(struct ieee80211_local *local,
+				    struct ieee80211_if_init_conf *conf)
+{
+	return local->ops->add_interface(&local->hw, conf);
+}
+
+static inline void drv_remove_interface(struct ieee80211_local *local,
+					struct ieee80211_if_init_conf *conf)
+{
+	local->ops->remove_interface(&local->hw, conf);
+}
+
+static inline int drv_config(struct ieee80211_local *local, u32 changed)
+{
+	return local->ops->config(&local->hw, changed);
+}
+
+static inline void drv_bss_info_changed(struct ieee80211_local *local,
+					struct ieee80211_vif *vif,
+					struct ieee80211_bss_conf *info,
+					u32 changed)
+{
+	if (local->ops->bss_info_changed)
+		local->ops->bss_info_changed(&local->hw, vif, info, changed);
+}
+
+static inline void drv_configure_filter(struct ieee80211_local *local,
+					unsigned int changed_flags,
+					unsigned int *total_flags,
+					int mc_count,
+					struct dev_addr_list *mc_list)
+{
+	local->ops->configure_filter(&local->hw, changed_flags, total_flags,
+				     mc_count, mc_list);
+}
+
+static inline int drv_set_tim(struct ieee80211_local *local,
+			      struct ieee80211_sta *sta, bool set)
+{
+	if (local->ops->set_tim)
+		return local->ops->set_tim(&local->hw, sta, set);
+	return 0;
+}
+
+static inline int drv_set_key(struct ieee80211_local *local,
+			      enum set_key_cmd cmd, struct ieee80211_vif *vif,
+			      struct ieee80211_sta *sta,
+			      struct ieee80211_key_conf *key)
+{
+	return local->ops->set_key(&local->hw, cmd, vif, sta, key);
+}
+
+static inline void drv_update_tkip_key(struct ieee80211_local *local,
+				       struct ieee80211_key_conf *conf,
+				       const u8 *address, u32 iv32,
+				       u16 *phase1key)
+{
+	if (local->ops->update_tkip_key)
+		local->ops->update_tkip_key(&local->hw, conf, address,
+					    iv32, phase1key);
+}
+
+static inline int drv_hw_scan(struct ieee80211_local *local,
+			      struct cfg80211_scan_request *req)
+{
+	return local->ops->hw_scan(&local->hw, req);
+}
+
+static inline void drv_sw_scan_start(struct ieee80211_local *local)
+{
+	if (local->ops->sw_scan_start)
+		local->ops->sw_scan_start(&local->hw);
+}
+
+static inline void drv_sw_scan_complete(struct ieee80211_local *local)
+{
+	if (local->ops->sw_scan_complete)
+		local->ops->sw_scan_complete(&local->hw);
+}
+
+static inline int drv_get_stats(struct ieee80211_local *local,
+				struct ieee80211_low_level_stats *stats)
+{
+	if (!local->ops->get_stats)
+		return -EOPNOTSUPP;
+	return local->ops->get_stats(&local->hw, stats);
+}
+
+static inline void drv_get_tkip_seq(struct ieee80211_local *local,
+				    u8 hw_key_idx, u32 *iv32, u16 *iv16)
+{
+	if (local->ops->get_tkip_seq)
+		local->ops->get_tkip_seq(&local->hw, hw_key_idx, iv32, iv16);
+}
+
+static inline int drv_set_rts_threshold(struct ieee80211_local *local,
+					u32 value)
+{
+	if (local->ops->set_rts_threshold)
+		return local->ops->set_rts_threshold(&local->hw, value);
+	return 0;
+}
+
+static inline void drv_sta_notify(struct ieee80211_local *local,
+				  struct ieee80211_vif *vif,
+				  enum sta_notify_cmd cmd,
+				  struct ieee80211_sta *sta)
+{
+	if (local->ops->sta_notify)
+		local->ops->sta_notify(&local->hw, vif, cmd, sta);
+}
+
+static inline int drv_conf_tx(struct ieee80211_local *local, u16 queue,
+			      const struct ieee80211_tx_queue_params *params)
+{
+	if (local->ops->conf_tx)
+		return local->ops->conf_tx(&local->hw, queue, params);
+	return -EOPNOTSUPP;
+}
+
+static inline int drv_get_tx_stats(struct ieee80211_local *local,
+				   struct ieee80211_tx_queue_stats *stats)
+{
+	return local->ops->get_tx_stats(&local->hw, stats);
+}
+
+static inline u64 drv_get_tsf(struct ieee80211_local *local)
+{
+	if (local->ops->get_tsf)
+		return local->ops->get_tsf(&local->hw);
+	return -1ULL;
+}
+
+static inline void drv_set_tsf(struct ieee80211_local *local, u64 tsf)
+{
+	if (local->ops->set_tsf)
+		local->ops->set_tsf(&local->hw, tsf);
+}
+
+static inline void drv_reset_tsf(struct ieee80211_local *local)
+{
+	if (local->ops->reset_tsf)
+		local->ops->reset_tsf(&local->hw);
+}
+
+static inline int drv_tx_last_beacon(struct ieee80211_local *local)
+{
+	if (local->ops->tx_last_beacon)
+		return local->ops->tx_last_beacon(&local->hw);
+	return 1;
+}
+
+static inline int drv_ampdu_action(struct ieee80211_local *local,
+				   enum ieee80211_ampdu_mlme_action action,
+				   struct ieee80211_sta *sta, u16 tid,
+				   u16 *ssn)
+{
+	if (local->ops->ampdu_action)
+		return local->ops->ampdu_action(&local->hw, action,
+						sta, tid, ssn);
+	return -EOPNOTSUPP;
+}
+
+
+static inline void drv_rfkill_poll(struct ieee80211_local *local)
+{
+	if (local->ops->rfkill_poll)
+		local->ops->rfkill_poll(&local->hw);
+}
+#endif /* __MAC80211_DRIVER_OPS */
diff --git a/net/mac80211/event.c b/net/mac80211/event.c
index 0d95561c0ee0..f288d01a6344 100644
--- a/net/mac80211/event.c
+++ b/net/mac80211/event.c
@@ -12,12 +12,12 @@
 #include "ieee80211_i.h"
 
 /*
- * indicate a failed Michael MIC to userspace; the passed packet
- * (in the variable hdr) must be long enough to extract the TKIP
- * fields like TSC
+ * Indicate a failed Michael MIC to userspace. If the caller knows the TSC of
+ * the frame that generated the MIC failure (i.e., if it was provided by the
+ * driver or is still in the frame), it should provide that information.
  */
 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
-				     struct ieee80211_hdr *hdr)
+				     struct ieee80211_hdr *hdr, const u8 *tsc)
 {
 	union iwreq_data wrqu;
 	char *buf = kmalloc(128, GFP_ATOMIC);
@@ -34,8 +34,9 @@ void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int ke
 		kfree(buf);
 	}
 
-	/*
-	 * TODO: re-add support for sending MIC failure indication
-	 * with all info via nl80211
-	 */
+	cfg80211_michael_mic_failure(sdata->dev, hdr->addr2,
+				     (hdr->addr1[0] & 0x01) ?
+				     NL80211_KEYTYPE_GROUP :
+				     NL80211_KEYTYPE_PAIRWISE,
+				     keyidx, tsc);
 }
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index 4e3c72f20de7..0891bfb06996 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -14,7 +14,6 @@
  */
 
 #include <linux/ieee80211.h>
-#include <net/wireless.h>
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
 #include "rate.h"
@@ -83,89 +82,6 @@ void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
 		ht_cap->mcs.rx_mask[32/8] |= 1;
 }
 
-/*
- * ieee80211_enable_ht should be called only after the operating band
- * has been determined as ht configuration depends on the hw's
- * HT abilities for a specific band.
- */
-u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
-			struct ieee80211_ht_info *hti,
-			u16 ap_ht_cap_flags)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_supported_band *sband;
-	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
-	struct ieee80211_bss_ht_conf ht;
-	struct sta_info *sta;
-	u32 changed = 0;
-	bool enable_ht = true, ht_changed;
-	enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
-
-	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
-	memset(&ht, 0, sizeof(ht));
-
-	/* HT is not supported */
-	if (!sband->ht_cap.ht_supported)
-		enable_ht = false;
-
-	/* check that channel matches the right operating channel */
-	if (local->hw.conf.channel->center_freq !=
-	    ieee80211_channel_to_frequency(hti->control_chan))
-		enable_ht = false;
-
-	if (enable_ht) {
-		channel_type = NL80211_CHAN_HT20;
-
-		if (!(ap_ht_cap_flags & IEEE80211_HT_CAP_40MHZ_INTOLERANT) &&
-		    (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) &&
-		    (hti->ht_param & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY)) {
-			switch(hti->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
-			case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
-				channel_type = NL80211_CHAN_HT40PLUS;
-				break;
-			case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
-				channel_type = NL80211_CHAN_HT40MINUS;
-				break;
-			}
-		}
-	}
-
-	ht_changed = conf_is_ht(&local->hw.conf) != enable_ht ||
-		     channel_type != local->hw.conf.channel_type;
-
-	local->oper_channel_type = channel_type;
-
-	if (ht_changed) {
-                /* channel_type change automatically detected */
-		ieee80211_hw_config(local, 0);
-
-		rcu_read_lock();
-
-		sta = sta_info_get(local, ifmgd->bssid);
-		if (sta)
-			rate_control_rate_update(local, sband, sta,
-						 IEEE80211_RC_HT_CHANGED);
-
-		rcu_read_unlock();
-
-        }
-
-	/* disable HT */
-	if (!enable_ht)
-		return 0;
-
-	ht.operation_mode = le16_to_cpu(hti->operation_mode);
-
-	/* if bss configuration changed store the new one */
-	if (memcmp(&sdata->vif.bss_conf.ht, &ht, sizeof(ht))) {
-		changed |= BSS_CHANGED_HT;
-		sdata->vif.bss_conf.ht = ht;
-	}
-
-	return changed;
-}
-
 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta)
 {
 	int i;
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 3201e1f96365..0b30277eb366 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -22,6 +22,7 @@
 #include <asm/unaligned.h>
 
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "rate.h"
 
 #define IEEE80211_SCAN_INTERVAL (2 * HZ)
@@ -59,74 +60,65 @@ static void ieee80211_rx_mgmt_auth_ibss(struct ieee80211_sub_if_data *sdata,
 				    sdata->u.ibss.bssid, 0);
 }
 
-static int __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
-				     const u8 *bssid, const int beacon_int,
-				     const int freq,
-				     const size_t supp_rates_len,
-				     const u8 *supp_rates,
-				     const u16 capability, u64 tsf)
+static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
+				      const u8 *bssid, const int beacon_int,
+				      struct ieee80211_channel *chan,
+				      const u32 basic_rates,
+				      const u16 capability, u64 tsf)
 {
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 	struct ieee80211_local *local = sdata->local;
-	int res = 0, rates, i, j;
+	int rates, i;
 	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
 	u8 *pos;
 	struct ieee80211_supported_band *sband;
-	union iwreq_data wrqu;
+	u32 bss_change;
+	u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
 
-	if (local->ops->reset_tsf) {
-		/* Reset own TSF to allow time synchronization work. */
-		local->ops->reset_tsf(local_to_hw(local));
-	}
+	/* Reset own TSF to allow time synchronization work. */
+	drv_reset_tsf(local);
 
-	if ((ifibss->flags & IEEE80211_IBSS_PREV_BSSID_SET) &&
-	   memcmp(ifibss->bssid, bssid, ETH_ALEN) == 0)
-		return res;
+	skb = ifibss->skb;
+	rcu_assign_pointer(ifibss->presp, NULL);
+	synchronize_rcu();
+	skb->data = skb->head;
+	skb->len = 0;
+	skb_reset_tail_pointer(skb);
+	skb_reserve(skb, sdata->local->hw.extra_tx_headroom);
 
-	skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
-	if (!skb) {
-		printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
-		       "response\n", sdata->dev->name);
-		return -ENOMEM;
-	}
-
-	if (!(ifibss->flags & IEEE80211_IBSS_PREV_BSSID_SET)) {
-		/* Remove possible STA entries from other IBSS networks. */
-		sta_info_flush_delayed(sdata);
-	}
+	if (memcmp(ifibss->bssid, bssid, ETH_ALEN))
+		sta_info_flush(sdata->local, sdata);
 
 	memcpy(ifibss->bssid, bssid, ETH_ALEN);
-	res = ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID);
-	if (res)
-		return res;
-
-	local->hw.conf.beacon_int = beacon_int >= 10 ? beacon_int : 10;
 
-	sdata->drop_unencrypted = capability &
-		WLAN_CAPABILITY_PRIVACY ? 1 : 0;
+	sdata->drop_unencrypted = capability & WLAN_CAPABILITY_PRIVACY ? 1 : 0;
 
-	res = ieee80211_set_freq(sdata, freq);
+	local->oper_channel = chan;
+	local->oper_channel_type = NL80211_CHAN_NO_HT;
+	ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
 
-	if (res)
-		return res;
+	sband = local->hw.wiphy->bands[chan->band];
 
-	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+	/* build supported rates array */
+	pos = supp_rates;
+	for (i = 0; i < sband->n_bitrates; i++) {
+		int rate = sband->bitrates[i].bitrate;
+		u8 basic = 0;
+		if (basic_rates & BIT(i))
+			basic = 0x80;
+		*pos++ = basic | (u8) (rate / 5);
+	}
 
 	/* Build IBSS probe response */
-
-	skb_reserve(skb, local->hw.extra_tx_headroom);
-
-	mgmt = (struct ieee80211_mgmt *)
-		skb_put(skb, 24 + sizeof(mgmt->u.beacon));
+	mgmt = (void *) skb_put(skb, 24 + sizeof(mgmt->u.beacon));
 	memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon));
 	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
 					  IEEE80211_STYPE_PROBE_RESP);
 	memset(mgmt->da, 0xff, ETH_ALEN);
 	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
 	memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN);
-	mgmt->u.beacon.beacon_int =
-		cpu_to_le16(local->hw.conf.beacon_int);
+	mgmt->u.beacon.beacon_int = cpu_to_le16(beacon_int);
 	mgmt->u.beacon.timestamp = cpu_to_le64(tsf);
 	mgmt->u.beacon.capab_info = cpu_to_le16(capability);
 
@@ -135,7 +127,7 @@ static int __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	*pos++ = ifibss->ssid_len;
 	memcpy(pos, ifibss->ssid, ifibss->ssid_len);
 
-	rates = supp_rates_len;
+	rates = sband->n_bitrates;
 	if (rates > 8)
 		rates = 8;
 	pos = skb_put(skb, 2 + rates);
@@ -147,7 +139,7 @@ static int __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 		pos = skb_put(skb, 2 + 1);
 		*pos++ = WLAN_EID_DS_PARAMS;
 		*pos++ = 1;
-		*pos++ = ieee80211_frequency_to_channel(freq);
+		*pos++ = ieee80211_frequency_to_channel(chan->center_freq);
 	}
 
 	pos = skb_put(skb, 2 + 2);
@@ -157,51 +149,73 @@ static int __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	*pos++ = 0;
 	*pos++ = 0;
 
-	if (supp_rates_len > 8) {
-		rates = supp_rates_len - 8;
+	if (sband->n_bitrates > 8) {
+		rates = sband->n_bitrates - 8;
 		pos = skb_put(skb, 2 + rates);
 		*pos++ = WLAN_EID_EXT_SUPP_RATES;
 		*pos++ = rates;
 		memcpy(pos, &supp_rates[8], rates);
 	}
 
-	ifibss->probe_resp = skb;
+	if (ifibss->ie_len)
+		memcpy(skb_put(skb, ifibss->ie_len),
+		       ifibss->ie, ifibss->ie_len);
 
-	ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON |
-				   IEEE80211_IFCC_BEACON_ENABLED);
+	rcu_assign_pointer(ifibss->presp, skb);
 
+	sdata->vif.bss_conf.beacon_int = beacon_int;
+	bss_change = BSS_CHANGED_BEACON_INT;
+	bss_change |= ieee80211_reset_erp_info(sdata);
+	bss_change |= BSS_CHANGED_BSSID;
+	bss_change |= BSS_CHANGED_BEACON;
+	bss_change |= BSS_CHANGED_BEACON_ENABLED;
+	ieee80211_bss_info_change_notify(sdata, bss_change);
 
-	rates = 0;
-	for (i = 0; i < supp_rates_len; i++) {
-		int bitrate = (supp_rates[i] & 0x7f) * 5;
-		for (j = 0; j < sband->n_bitrates; j++)
-			if (sband->bitrates[j].bitrate == bitrate)
-				rates |= BIT(j);
-	}
+	ieee80211_sta_def_wmm_params(sdata, sband->n_bitrates, supp_rates);
 
-	ieee80211_sta_def_wmm_params(sdata, supp_rates_len, supp_rates);
-
-	ifibss->flags |= IEEE80211_IBSS_PREV_BSSID_SET;
 	ifibss->state = IEEE80211_IBSS_MLME_JOINED;
-	mod_timer(&ifibss->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
-
-	memset(&wrqu, 0, sizeof(wrqu));
-	memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN);
-	wireless_send_event(sdata->dev, SIOCGIWAP, &wrqu, NULL);
+	mod_timer(&ifibss->timer,
+		  round_jiffies(jiffies + IEEE80211_IBSS_MERGE_INTERVAL));
 
-	return res;
+	cfg80211_inform_bss_frame(local->hw.wiphy, local->hw.conf.channel,
+				  mgmt, skb->len, 0, GFP_KERNEL);
+	cfg80211_ibss_joined(sdata->dev, ifibss->bssid, GFP_KERNEL);
 }
 
-static int ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
-				   struct ieee80211_bss *bss)
+static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
+				    struct ieee80211_bss *bss)
 {
-	return __ieee80211_sta_join_ibss(sdata,
-					 bss->cbss.bssid,
-					 bss->cbss.beacon_interval,
-					 bss->cbss.channel->center_freq,
-					 bss->supp_rates_len, bss->supp_rates,
-					 bss->cbss.capability,
-					 bss->cbss.tsf);
+	struct ieee80211_supported_band *sband;
+	u32 basic_rates;
+	int i, j;
+	u16 beacon_int = bss->cbss.beacon_interval;
+
+	if (beacon_int < 10)
+		beacon_int = 10;
+
+	sband = sdata->local->hw.wiphy->bands[bss->cbss.channel->band];
+
+	basic_rates = 0;
+
+	for (i = 0; i < bss->supp_rates_len; i++) {
+		int rate = (bss->supp_rates[i] & 0x7f) * 5;
+		bool is_basic = !!(bss->supp_rates[i] & 0x80);
+
+		for (j = 0; j < sband->n_bitrates; j++) {
+			if (sband->bitrates[j].bitrate == rate) {
+				if (is_basic)
+					basic_rates |= BIT(j);
+				break;
+			}
+		}
+	}
+
+	__ieee80211_sta_join_ibss(sdata, bss->cbss.bssid,
+				  beacon_int,
+				  bss->cbss.channel,
+				  basic_rates,
+				  bss->cbss.capability,
+				  bss->cbss.tsf);
 }
 
 static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
@@ -277,7 +291,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 		goto put_bss;
 
 	/* we use a fixed BSSID */
-	if (sdata->u.ibss.flags & IEEE80211_IBSS_BSSID_SET)
+	if (sdata->u.ibss.bssid)
 		goto put_bss;
 
 	/* not an IBSS */
@@ -322,12 +336,13 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 				bitrates[rx_status->rate_idx].bitrate;
 
 		rx_timestamp = rx_status->mactime + (24 * 8 * 10 / rate);
-	} else if (local && local->ops && local->ops->get_tsf)
-		/* second best option: get current TSF */
-		rx_timestamp = local->ops->get_tsf(local_to_hw(local));
-	else
-		/* can't merge without knowing the TSF */
-		rx_timestamp = -1LLU;
+	} else {
+		/*
+		 * second best option: get current TSF
+		 * (will return -1 if not supported)
+		 */
+		rx_timestamp = drv_get_tsf(local);
+	}
 
 #ifdef CONFIG_MAC80211_IBSS_DEBUG
 	printk(KERN_DEBUG "RX beacon SA=%pM BSSID="
@@ -369,13 +384,14 @@ struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
 	struct sta_info *sta;
 	int band = local->hw.conf.channel->band;
 
-	/* TODO: Could consider removing the least recently used entry and
-	 * allow new one to be added. */
+	/*
+	 * XXX: Consider removing the least recently used entry and
+	 * 	allow new one to be added.
+	 */
 	if (local->num_sta >= IEEE80211_IBSS_MAX_STA_ENTRIES) {
-		if (net_ratelimit()) {
-			printk(KERN_DEBUG "%s: No room for a new IBSS STA "
-			       "entry %pM\n", sdata->dev->name, addr);
-		}
+		if (net_ratelimit())
+			printk(KERN_DEBUG "%s: No room for a new IBSS STA entry %pM\n",
+			       sdata->dev->name, addr);
 		return NULL;
 	}
 
@@ -432,41 +448,33 @@ static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 
-	mod_timer(&ifibss->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
+	mod_timer(&ifibss->timer,
+		  round_jiffies(jiffies + IEEE80211_IBSS_MERGE_INTERVAL));
 
 	ieee80211_sta_expire(sdata, IEEE80211_IBSS_INACTIVITY_LIMIT);
+
 	if (ieee80211_sta_active_ibss(sdata))
 		return;
 
-	if ((ifibss->flags & IEEE80211_IBSS_BSSID_SET) &&
-	    (!(ifibss->flags & IEEE80211_IBSS_AUTO_CHANNEL_SEL)))
+	if (ifibss->fixed_channel)
 		return;
 
 	printk(KERN_DEBUG "%s: No active IBSS STAs - trying to scan for other "
 	       "IBSS networks with same SSID (merge)\n", sdata->dev->name);
 
-	/* XXX maybe racy? */
-	if (sdata->local->scan_req)
-		return;
-
-	memcpy(sdata->local->int_scan_req.ssids[0].ssid,
-	       ifibss->ssid, IEEE80211_MAX_SSID_LEN);
-	sdata->local->int_scan_req.ssids[0].ssid_len = ifibss->ssid_len;
-	ieee80211_request_scan(sdata, &sdata->local->int_scan_req);
+	ieee80211_request_internal_scan(sdata, ifibss->ssid, ifibss->ssid_len);
 }
 
-static int ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
+static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_supported_band *sband;
-	u8 *pos;
 	u8 bssid[ETH_ALEN];
-	u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
 	u16 capability;
 	int i;
 
-	if (ifibss->flags & IEEE80211_IBSS_BSSID_SET) {
+	if (ifibss->fixed_bssid) {
 		memcpy(bssid, ifibss->bssid, ETH_ALEN);
 	} else {
 		/* Generate random, not broadcast, locally administered BSSID. Mix in
@@ -482,10 +490,7 @@ static int ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
 	printk(KERN_DEBUG "%s: Creating new IBSS network, BSSID %pM\n",
 	       sdata->dev->name, bssid);
 
-	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
-	if (local->hw.conf.beacon_int == 0)
-		local->hw.conf.beacon_int = 100;
+	sband = local->hw.wiphy->bands[ifibss->channel->band];
 
 	capability = WLAN_CAPABILITY_IBSS;
 
@@ -494,29 +499,20 @@ static int ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
 	else
 		sdata->drop_unencrypted = 0;
 
-	pos = supp_rates;
-	for (i = 0; i < sband->n_bitrates; i++) {
-		int rate = sband->bitrates[i].bitrate;
-		*pos++ = (u8) (rate / 5);
-	}
-
-	return __ieee80211_sta_join_ibss(sdata,
-					 bssid, local->hw.conf.beacon_int,
-					 local->hw.conf.channel->center_freq,
-					 sband->n_bitrates, supp_rates,
-					 capability, 0);
+	__ieee80211_sta_join_ibss(sdata, bssid, sdata->vif.bss_conf.beacon_int,
+				  ifibss->channel, 3, /* first two are basic */
+				  capability, 0);
 }
 
-static int ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
+static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_bss *bss;
+	struct ieee80211_channel *chan = NULL;
 	const u8 *bssid = NULL;
 	int active_ibss;
-
-	if (ifibss->ssid_len == 0)
-		return -EINVAL;
+	u16 capability;
 
 	active_ibss = ieee80211_sta_active_ibss(sdata);
 #ifdef CONFIG_MAC80211_IBSS_DEBUG
@@ -525,14 +521,23 @@ static int ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 #endif /* CONFIG_MAC80211_IBSS_DEBUG */
 
 	if (active_ibss)
-		return 0;
+		return;
 
-	if (ifibss->flags & IEEE80211_IBSS_BSSID_SET)
+	capability = WLAN_CAPABILITY_IBSS;
+	if (sdata->default_key)
+		capability |= WLAN_CAPABILITY_PRIVACY;
+
+	if (ifibss->fixed_bssid)
 		bssid = ifibss->bssid;
-	bss = (void *)cfg80211_get_bss(local->hw.wiphy, NULL, bssid,
+	if (ifibss->fixed_channel)
+		chan = ifibss->channel;
+	if (!is_zero_ether_addr(ifibss->bssid))
+		bssid = ifibss->bssid;
+	bss = (void *)cfg80211_get_bss(local->hw.wiphy, chan, bssid,
 				       ifibss->ssid, ifibss->ssid_len,
-				       WLAN_CAPABILITY_IBSS,
-				       WLAN_CAPABILITY_IBSS);
+				       WLAN_CAPABILITY_IBSS |
+				       WLAN_CAPABILITY_PRIVACY,
+				       capability);
 
 #ifdef CONFIG_MAC80211_IBSS_DEBUG
 	if (bss)
@@ -540,18 +545,14 @@ static int ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 		       "%pM\n", bss->cbss.bssid, ifibss->bssid);
 #endif /* CONFIG_MAC80211_IBSS_DEBUG */
 
-	if (bss &&
-	    (!(ifibss->flags & IEEE80211_IBSS_PREV_BSSID_SET) ||
-	     memcmp(ifibss->bssid, bss->cbss.bssid, ETH_ALEN))) {
-		int ret;
-
+	if (bss && memcmp(ifibss->bssid, bss->cbss.bssid, ETH_ALEN)) {
 		printk(KERN_DEBUG "%s: Selected IBSS BSSID %pM"
 		       " based on configured SSID\n",
 		       sdata->dev->name, bss->cbss.bssid);
 
-		ret = ieee80211_sta_join_ibss(sdata, bss);
+		ieee80211_sta_join_ibss(sdata, bss);
 		ieee80211_rx_bss_put(local, bss);
-		return ret;
+		return;
 	} else if (bss)
 		ieee80211_rx_bss_put(local, bss);
 
@@ -562,29 +563,24 @@ static int ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 	/* Selected IBSS not found in current scan results - try to scan */
 	if (ifibss->state == IEEE80211_IBSS_MLME_JOINED &&
 	    !ieee80211_sta_active_ibss(sdata)) {
-		mod_timer(&ifibss->timer, jiffies +
-					  IEEE80211_IBSS_MERGE_INTERVAL);
-	} else if (time_after(jiffies, local->last_scan_completed +
+		mod_timer(&ifibss->timer,
+			  round_jiffies(jiffies + IEEE80211_IBSS_MERGE_INTERVAL));
+	} else if (time_after(jiffies, ifibss->last_scan_completed +
 					IEEE80211_SCAN_INTERVAL)) {
 		printk(KERN_DEBUG "%s: Trigger new scan to find an IBSS to "
 		       "join\n", sdata->dev->name);
 
-		/* XXX maybe racy? */
-		if (local->scan_req)
-			return -EBUSY;
-
-		memcpy(local->int_scan_req.ssids[0].ssid,
-		       ifibss->ssid, IEEE80211_MAX_SSID_LEN);
-		local->int_scan_req.ssids[0].ssid_len = ifibss->ssid_len;
-		return ieee80211_request_scan(sdata, &local->int_scan_req);
+		ieee80211_request_internal_scan(sdata, ifibss->ssid,
+						ifibss->ssid_len);
 	} else if (ifibss->state != IEEE80211_IBSS_MLME_JOINED) {
 		int interval = IEEE80211_SCAN_INTERVAL;
 
 		if (time_after(jiffies, ifibss->ibss_join_req +
 			       IEEE80211_IBSS_JOIN_TIMEOUT)) {
-			if (!(local->oper_channel->flags &
-						IEEE80211_CHAN_NO_IBSS))
-				return ieee80211_sta_create_ibss(sdata);
+			if (!(local->oper_channel->flags & IEEE80211_CHAN_NO_IBSS)) {
+				ieee80211_sta_create_ibss(sdata);
+				return;
+			}
 			printk(KERN_DEBUG "%s: IBSS not allowed on"
 			       " %d MHz\n", sdata->dev->name,
 			       local->hw.conf.channel->center_freq);
@@ -595,11 +591,9 @@ static int ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 		}
 
 		ifibss->state = IEEE80211_IBSS_MLME_SEARCH;
-		mod_timer(&ifibss->timer, jiffies + interval);
-		return 0;
+		mod_timer(&ifibss->timer,
+			  round_jiffies(jiffies + interval));
 	}
-
-	return 0;
 }
 
 static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
@@ -614,13 +608,10 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
 	u8 *pos, *end;
 
 	if (ifibss->state != IEEE80211_IBSS_MLME_JOINED ||
-	    len < 24 + 2 || !ifibss->probe_resp)
+	    len < 24 + 2 || !ifibss->presp)
 		return;
 
-	if (local->ops->tx_last_beacon)
-		tx_last_beacon = local->ops->tx_last_beacon(local_to_hw(local));
-	else
-		tx_last_beacon = 1;
+	tx_last_beacon = drv_tx_last_beacon(local);
 
 #ifdef CONFIG_MAC80211_IBSS_DEBUG
 	printk(KERN_DEBUG "%s: RX ProbeReq SA=%pM DA=%pM BSSID=%pM"
@@ -649,13 +640,13 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
 	}
 	if (pos[1] != 0 &&
 	    (pos[1] != ifibss->ssid_len ||
-	     memcmp(pos + 2, ifibss->ssid, ifibss->ssid_len) != 0)) {
+	     !memcmp(pos + 2, ifibss->ssid, ifibss->ssid_len))) {
 		/* Ignore ProbeReq for foreign SSID */
 		return;
 	}
 
 	/* Reply with ProbeResp */
-	skb = skb_copy(ifibss->probe_resp, GFP_KERNEL);
+	skb = skb_copy(ifibss->presp, GFP_KERNEL);
 	if (!skb)
 		return;
 
@@ -746,6 +737,9 @@ static void ieee80211_ibss_work(struct work_struct *work)
 	struct ieee80211_if_ibss *ifibss;
 	struct sk_buff *skb;
 
+	if (WARN_ON(local->suspended))
+		return;
+
 	if (!netif_running(sdata->dev))
 		return;
 
@@ -782,101 +776,63 @@ static void ieee80211_ibss_timer(unsigned long data)
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 	struct ieee80211_local *local = sdata->local;
 
+	if (local->quiescing) {
+		ifibss->timer_running = true;
+		return;
+	}
+
 	set_bit(IEEE80211_IBSS_REQ_RUN, &ifibss->request);
 	queue_work(local->hw.workqueue, &ifibss->work);
 }
 
-void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata)
+#ifdef CONFIG_PM
+void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 
-	INIT_WORK(&ifibss->work, ieee80211_ibss_work);
-	setup_timer(&ifibss->timer, ieee80211_ibss_timer,
-		    (unsigned long) sdata);
-	skb_queue_head_init(&ifibss->skb_queue);
-
-	ifibss->flags |= IEEE80211_IBSS_AUTO_BSSID_SEL |
-			IEEE80211_IBSS_AUTO_CHANNEL_SEL;
+	cancel_work_sync(&ifibss->work);
+	if (del_timer_sync(&ifibss->timer))
+		ifibss->timer_running = true;
 }
 
-int ieee80211_ibss_commit(struct ieee80211_sub_if_data *sdata)
+void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 
-	ifibss->flags &= ~IEEE80211_IBSS_PREV_BSSID_SET;
-
-	if (ifibss->ssid_len)
-		ifibss->flags |= IEEE80211_IBSS_SSID_SET;
-	else
-		ifibss->flags &= ~IEEE80211_IBSS_SSID_SET;
-
-	ifibss->ibss_join_req = jiffies;
-	ifibss->state = IEEE80211_IBSS_MLME_SEARCH;
-	set_bit(IEEE80211_IBSS_REQ_RUN, &ifibss->request);
-
-	return 0;
-}
-
-int ieee80211_ibss_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len)
-{
-	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
-
-	if (len > IEEE80211_MAX_SSID_LEN)
-		return -EINVAL;
-
-	if (ifibss->ssid_len != len || memcmp(ifibss->ssid, ssid, len) != 0) {
-		memset(ifibss->ssid, 0, sizeof(ifibss->ssid));
-		memcpy(ifibss->ssid, ssid, len);
-		ifibss->ssid_len = len;
+	if (ifibss->timer_running) {
+		add_timer(&ifibss->timer);
+		ifibss->timer_running = false;
 	}
-
-	return ieee80211_ibss_commit(sdata);
-}
-
-int ieee80211_ibss_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len)
-{
-	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
-
-	memcpy(ssid, ifibss->ssid, ifibss->ssid_len);
-	*len = ifibss->ssid_len;
-
-	return 0;
 }
+#endif
 
-int ieee80211_ibss_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid)
+void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 
-	if (is_valid_ether_addr(bssid)) {
-		memcpy(ifibss->bssid, bssid, ETH_ALEN);
-		ifibss->flags |= IEEE80211_IBSS_BSSID_SET;
-	} else {
-		memset(ifibss->bssid, 0, ETH_ALEN);
-		ifibss->flags &= ~IEEE80211_IBSS_BSSID_SET;
-	}
-
-	if (netif_running(sdata->dev)) {
-		if (ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID)) {
-			printk(KERN_DEBUG "%s: Failed to config new BSSID to "
-			       "the low-level driver\n", sdata->dev->name);
-		}
-	}
-
-	return ieee80211_ibss_commit(sdata);
+	INIT_WORK(&ifibss->work, ieee80211_ibss_work);
+	setup_timer(&ifibss->timer, ieee80211_ibss_timer,
+		    (unsigned long) sdata);
+	skb_queue_head_init(&ifibss->skb_queue);
 }
 
 /* scan finished notification */
 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local)
 {
-	struct ieee80211_sub_if_data *sdata = local->scan_sdata;
-	struct ieee80211_if_ibss *ifibss;
-
-	if (sdata && sdata->vif.type == NL80211_IFTYPE_ADHOC) {
-		ifibss = &sdata->u.ibss;
-		if ((!(ifibss->flags & IEEE80211_IBSS_PREV_BSSID_SET)) ||
-		    !ieee80211_sta_active_ibss(sdata))
-			ieee80211_sta_find_ibss(sdata);
+	struct ieee80211_sub_if_data *sdata;
+
+	mutex_lock(&local->iflist_mtx);
+	list_for_each_entry(sdata, &local->interfaces, list) {
+		if (!netif_running(sdata->dev))
+			continue;
+		if (sdata->vif.type != NL80211_IFTYPE_ADHOC)
+			continue;
+		if (!sdata->u.ibss.ssid_len)
+			continue;
+		sdata->u.ibss.last_scan_completed = jiffies;
+		ieee80211_sta_find_ibss(sdata);
 	}
+	mutex_unlock(&local->iflist_mtx);
 }
 
 ieee80211_rx_result
@@ -906,3 +862,86 @@ ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
 
 	return RX_DROP_MONITOR;
 }
+
+int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
+			struct cfg80211_ibss_params *params)
+{
+	struct sk_buff *skb;
+
+	if (params->bssid) {
+		memcpy(sdata->u.ibss.bssid, params->bssid, ETH_ALEN);
+		sdata->u.ibss.fixed_bssid = true;
+	} else
+		sdata->u.ibss.fixed_bssid = false;
+
+	sdata->vif.bss_conf.beacon_int = params->beacon_interval;
+
+	sdata->u.ibss.channel = params->channel;
+	sdata->u.ibss.fixed_channel = params->channel_fixed;
+
+	if (params->ie) {
+		sdata->u.ibss.ie = kmemdup(params->ie, params->ie_len,
+					   GFP_KERNEL);
+		if (sdata->u.ibss.ie)
+			sdata->u.ibss.ie_len = params->ie_len;
+	}
+
+	skb = dev_alloc_skb(sdata->local->hw.extra_tx_headroom +
+			    36 /* bitrates */ +
+			    34 /* SSID */ +
+			    3  /* DS params */ +
+			    4  /* IBSS params */ +
+			    params->ie_len);
+	if (!skb)
+		return -ENOMEM;
+
+	sdata->u.ibss.skb = skb;
+	sdata->u.ibss.state = IEEE80211_IBSS_MLME_SEARCH;
+	sdata->u.ibss.ibss_join_req = jiffies;
+
+	memcpy(sdata->u.ibss.ssid, params->ssid, IEEE80211_MAX_SSID_LEN);
+
+	/*
+	 * The ssid_len setting below is used to see whether
+	 * we are active, and we need all other settings
+	 * before that may get visible.
+	 */
+	mb();
+
+	sdata->u.ibss.ssid_len = params->ssid_len;
+
+	ieee80211_recalc_idle(sdata->local);
+
+	set_bit(IEEE80211_IBSS_REQ_RUN, &sdata->u.ibss.request);
+	queue_work(sdata->local->hw.workqueue, &sdata->u.ibss.work);
+
+	return 0;
+}
+
+int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
+{
+	struct sk_buff *skb;
+
+	del_timer_sync(&sdata->u.ibss.timer);
+	clear_bit(IEEE80211_IBSS_REQ_RUN, &sdata->u.ibss.request);
+	cancel_work_sync(&sdata->u.ibss.work);
+	clear_bit(IEEE80211_IBSS_REQ_RUN, &sdata->u.ibss.request);
+
+	sta_info_flush(sdata->local, sdata);
+
+	/* remove beacon */
+	kfree(sdata->u.ibss.ie);
+	skb = sdata->u.ibss.presp;
+	rcu_assign_pointer(sdata->u.ibss.presp, NULL);
+	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
+	synchronize_rcu();
+	kfree_skb(skb);
+
+	skb_queue_purge(&sdata->u.ibss.skb_queue);
+	memset(sdata->u.ibss.bssid, 0, ETH_ALEN);
+	sdata->u.ibss.ssid_len = 0;
+
+	ieee80211_recalc_idle(sdata->local);
+
+	return 0;
+}
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index e6ed78cb16b3..68eb5052179a 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -24,7 +24,6 @@
 #include <linux/spinlock.h>
 #include <linux/etherdevice.h>
 #include <net/cfg80211.h>
-#include <net/wireless.h>
 #include <net/iw_handler.h>
 #include <net/mac80211.h>
 #include "key.h"
@@ -236,7 +235,7 @@ struct mesh_preq_queue {
 #define IEEE80211_STA_ASSOCIATED	BIT(4)
 #define IEEE80211_STA_PROBEREQ_POLL	BIT(5)
 #define IEEE80211_STA_CREATE_IBSS	BIT(6)
-/* hole at 7, please re-use */
+#define IEEE80211_STA_CONTROL_PORT	BIT(7)
 #define IEEE80211_STA_WMM_ENABLED	BIT(8)
 /* hole at 9, please re-use */
 #define IEEE80211_STA_AUTO_SSID_SEL	BIT(10)
@@ -249,9 +248,8 @@ struct mesh_preq_queue {
 #define IEEE80211_STA_EXT_SME		BIT(17)
 /* flags for MLME request */
 #define IEEE80211_STA_REQ_SCAN 0
-#define IEEE80211_STA_REQ_DIRECT_PROBE 1
-#define IEEE80211_STA_REQ_AUTH 2
-#define IEEE80211_STA_REQ_RUN  3
+#define IEEE80211_STA_REQ_AUTH 1
+#define IEEE80211_STA_REQ_RUN  2
 
 /* bitfield of allowed auth algs */
 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
@@ -295,6 +293,9 @@ struct ieee80211_if_managed {
 	int auth_tries; /* retries for auth req */
 	int assoc_tries; /* retries for assoc req */
 
+	unsigned long timers_running; /* used for quiesce/restart */
+	bool powersave; /* powersave requested for this iface */
+
 	unsigned long request;
 
 	unsigned long last_probe;
@@ -306,6 +307,8 @@ struct ieee80211_if_managed {
 	int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
 	int auth_transaction;
 
+	u32 beacon_crc;
+
 	enum {
 		IEEE80211_MFP_DISABLED,
 		IEEE80211_MFP_OPTIONAL,
@@ -319,14 +322,6 @@ struct ieee80211_if_managed {
 	size_t sme_auth_ie_len;
 };
 
-enum ieee80211_ibss_flags {
-	IEEE80211_IBSS_AUTO_CHANNEL_SEL		= BIT(0),
-	IEEE80211_IBSS_AUTO_BSSID_SEL		= BIT(1),
-	IEEE80211_IBSS_BSSID_SET		= BIT(2),
-	IEEE80211_IBSS_PREV_BSSID_SET		= BIT(3),
-	IEEE80211_IBSS_SSID_SET			= BIT(4),
-};
-
 enum ieee80211_ibss_request {
 	IEEE80211_IBSS_REQ_RUN	= 0,
 };
@@ -337,17 +332,23 @@ struct ieee80211_if_ibss {
 
 	struct sk_buff_head skb_queue;
 
-	u8 ssid[IEEE80211_MAX_SSID_LEN];
-	u8 ssid_len;
+	unsigned long request;
+	unsigned long last_scan_completed;
 
-	u32 flags;
+	bool timer_running;
 
-	u8 bssid[ETH_ALEN];
+	bool fixed_bssid;
+	bool fixed_channel;
 
-	unsigned long request;
+	u8 bssid[ETH_ALEN];
+	u8 ssid[IEEE80211_MAX_SSID_LEN];
+	u8 ssid_len, ie_len;
+	u8 *ie;
+	struct ieee80211_channel *channel;
 
 	unsigned long ibss_join_req;
-	struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
+	/* probe response/beacon for IBSS */
+	struct sk_buff *presp, *skb;
 
 	enum {
 		IEEE80211_IBSS_MLME_SEARCH,
@@ -361,6 +362,8 @@ struct ieee80211_if_mesh {
 	struct timer_list mesh_path_timer;
 	struct sk_buff_head skb_queue;
 
+	unsigned long timers_running;
+
 	bool housekeeping;
 
 	u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
@@ -430,6 +433,12 @@ struct ieee80211_sub_if_data {
 
 	int drop_unencrypted;
 
+	/*
+	 * keep track of whether the HT opmode (stored in
+	 * vif.bss_info.ht_operation_mode) is valid.
+	 */
+	bool ht_opmode_valid;
+
 	/* Fragment table for host-based reassembly */
 	struct ieee80211_fragment_entry	fragments[IEEE80211_FRAGMENT_MAX];
 	unsigned int fragment_next;
@@ -580,6 +589,7 @@ enum queue_stop_reason {
 	IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
 	IEEE80211_QUEUE_STOP_REASON_SUSPEND,
 	IEEE80211_QUEUE_STOP_REASON_PENDING,
+	IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
 };
 
 struct ieee80211_master_priv {
@@ -606,6 +616,21 @@ struct ieee80211_local {
 	unsigned int filter_flags; /* FIF_* */
 	struct iw_statistics wstats;
 	bool tim_in_locked_section; /* see ieee80211_beacon_get() */
+
+	/*
+	 * suspended is true if we finished all the suspend _and_ we have
+	 * not yet come up from resume. This is to be used by mac80211
+	 * to ensure driver sanity during suspend and mac80211's own
+	 * sanity. It can eventually be used for WoW as well.
+	 */
+	bool suspended;
+
+	/*
+	 * quiescing is true during the suspend process _only_ to
+	 * ease timer cancelling etc.
+	 */
+	bool quiescing;
+
 	int tx_headroom; /* required headroom for hardware/radiotap */
 
 	/* Tasklet and skb queue to process calls from IRQ mode. All frames
@@ -626,8 +651,6 @@ struct ieee80211_local {
 	spinlock_t sta_lock;
 	unsigned long num_sta;
 	struct list_head sta_list;
-	struct list_head sta_flush_list;
-	struct work_struct sta_flush_work;
 	struct sta_info *sta_hash[STA_HASH_SIZE];
 	struct timer_list sta_cleanup;
 
@@ -647,9 +670,6 @@ struct ieee80211_local {
 
 	struct rate_control_ref *rate_ctrl;
 
-	int rts_threshold;
-	int fragmentation_threshold;
-
 	struct crypto_blkcipher *wep_tx_tfm;
 	struct crypto_blkcipher *wep_rx_tfm;
 	u32 wep_iv;
@@ -666,15 +686,18 @@ struct ieee80211_local {
 
 
 	/* Scanning and BSS list */
+	struct mutex scan_mtx;
 	bool sw_scanning, hw_scanning;
 	struct cfg80211_ssid scan_ssid;
 	struct cfg80211_scan_request int_scan_req;
 	struct cfg80211_scan_request *scan_req;
 	struct ieee80211_channel *scan_channel;
+	const u8 *orig_ies;
+	int orig_ies_len;
 	int scan_channel_idx;
+	int scan_ies_len;
 
 	enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
-	unsigned long last_scan_completed;
 	struct delayed_work scan_work;
 	struct ieee80211_sub_if_data *scan_sdata;
 	enum nl80211_channel_type oper_channel_type;
@@ -736,28 +759,33 @@ struct ieee80211_local {
 	int wifi_wme_noack_test;
 	unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
 
-	bool powersave;
 	bool pspolling;
+	/*
+	 * PS can only be enabled when we have exactly one managed
+	 * interface (and monitors) in PS, this then points there.
+	 */
+	struct ieee80211_sub_if_data *ps_sdata;
 	struct work_struct dynamic_ps_enable_work;
 	struct work_struct dynamic_ps_disable_work;
 	struct timer_list dynamic_ps_timer;
+	struct notifier_block network_latency_notifier;
 
 	int user_power_level; /* in dBm */
 	int power_constr_level; /* in dBm */
 
+	struct work_struct restart_work;
+
 #ifdef CONFIG_MAC80211_DEBUGFS
 	struct local_debugfsdentries {
 		struct dentry *rcdir;
 		struct dentry *rcname;
 		struct dentry *frequency;
-		struct dentry *rts_threshold;
-		struct dentry *fragmentation_threshold;
-		struct dentry *short_retry_limit;
-		struct dentry *long_retry_limit;
 		struct dentry *total_ps_buffered;
 		struct dentry *wep_iv;
 		struct dentry *tsf;
+		struct dentry *queues;
 		struct dentry *reset;
+		struct dentry *noack;
 		struct dentry *statistics;
 		struct local_debugfsdentries_statsdentries {
 			struct dentry *transmitted_fragment_count;
@@ -830,7 +858,7 @@ struct ieee802_11_elems {
 	u8 *fh_params;
 	u8 *ds_params;
 	u8 *cf_params;
-	u8 *tim;
+	struct ieee80211_tim_ie *tim;
 	u8 *ibss_params;
 	u8 *challenge;
 	u8 *wpa;
@@ -903,7 +931,6 @@ static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
 
 
 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
-int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed);
 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
 				      u32 changed);
@@ -927,12 +954,16 @@ int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason
 int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason);
 void ieee80211_send_pspoll(struct ieee80211_local *local,
 			   struct ieee80211_sub_if_data *sdata);
+void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
+int ieee80211_max_network_latency(struct notifier_block *nb,
+				  unsigned long data, void *dummy);
+void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
+				      struct ieee80211_channel_sw_ie *sw_elem,
+				      struct ieee80211_bss *bss);
+void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
+void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
 
 /* IBSS code */
-int ieee80211_ibss_commit(struct ieee80211_sub_if_data *sdata);
-int ieee80211_ibss_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len);
-int ieee80211_ibss_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len);
-int ieee80211_ibss_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid);
 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
 ieee80211_rx_result
@@ -940,14 +971,22 @@ ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
 		       struct ieee80211_rx_status *rx_status);
 struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
 					u8 *bssid, u8 *addr, u32 supp_rates);
+int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
+			struct cfg80211_ibss_params *params);
+int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
+void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
+void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
 
 /* scan/BSS handling */
 void ieee80211_scan_work(struct work_struct *work);
+int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
+				    const u8 *ssid, u8 ssid_len);
 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
 			   struct cfg80211_scan_request *req);
 int ieee80211_scan_results(struct ieee80211_local *local,
 			   struct iw_request_info *info,
 			   char *buf, size_t len);
+void ieee80211_scan_cancel(struct ieee80211_local *local);
 ieee80211_rx_result
 ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata,
 		  struct sk_buff *skb,
@@ -956,9 +995,6 @@ int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata,
 			       const char *ie, size_t len);
 
 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
-void ieee80211_scan_failed(struct ieee80211_local *local);
-int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
-			 struct cfg80211_scan_request *req);
 struct ieee80211_bss *
 ieee80211_bss_info_update(struct ieee80211_local *local,
 			  struct ieee80211_rx_status *rx_status,
@@ -983,6 +1019,8 @@ int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
 			     enum nl80211_iftype type);
 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
 void ieee80211_remove_interfaces(struct ieee80211_local *local);
+u32 __ieee80211_recalc_idle(struct ieee80211_local *local);
+void ieee80211_recalc_idle(struct ieee80211_local *local);
 
 /* tx handling */
 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
@@ -995,9 +1033,6 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
 				       struct ieee80211_ht_cap *ht_cap_ie,
 				       struct ieee80211_sta_ht_cap *ht_cap);
-u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
-			struct ieee80211_ht_info *hti,
-			u16 ap_ht_cap_flags);
 void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn);
 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
 			  const u8 *da, u16 tid,
@@ -1027,24 +1062,23 @@ int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
 				       struct ieee80211_mgmt *mgmt,
 				       size_t len);
-void ieee80211_chswitch_timer(unsigned long data);
-void ieee80211_chswitch_work(struct work_struct *work);
-void ieee80211_process_chanswitch(struct ieee80211_sub_if_data *sdata,
-				  struct ieee80211_channel_sw_ie *sw_elem,
-				  struct ieee80211_bss *bss);
-void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
-				 u16 capab_info, u8 *pwr_constr_elem,
-				 u8 pwr_constr_elem_len);
-
-/* Suspend/resume */
+
+/* Suspend/resume and hw reconfiguration */
+int ieee80211_reconfig(struct ieee80211_local *local);
+
 #ifdef CONFIG_PM
 int __ieee80211_suspend(struct ieee80211_hw *hw);
-int __ieee80211_resume(struct ieee80211_hw *hw);
+
+static inline int __ieee80211_resume(struct ieee80211_hw *hw)
+{
+	return ieee80211_reconfig(hw_to_local(hw));
+}
 #else
 static inline int __ieee80211_suspend(struct ieee80211_hw *hw)
 {
 	return 0;
 }
+
 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
 {
 	return 0;
@@ -1053,20 +1087,20 @@ static inline int __ieee80211_resume(struct ieee80211_hw *hw)
 
 /* utility functions/constants */
 extern void *mac80211_wiphy_privid; /* for wiphy privid */
-extern const unsigned char rfc1042_header[6];
-extern const unsigned char bridge_tunnel_header[6];
 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
 			enum nl80211_iftype type);
 int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
 			     int rate, int erp, int short_preamble);
 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
-				     struct ieee80211_hdr *hdr);
+				     struct ieee80211_hdr *hdr, const u8 *tsc);
 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata);
 void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
 		      int encrypt);
 void ieee802_11_parse_elems(u8 *start, size_t len,
 			    struct ieee802_11_elems *elems);
-int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freq);
+u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
+			       struct ieee802_11_elems *elems,
+			       u64 filter, u32 crc);
 u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
 			      enum ieee80211_band band);
 
@@ -1088,14 +1122,20 @@ void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
 				    enum queue_stop_reason reason);
 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
 				    enum queue_stop_reason reason);
+void ieee80211_add_pending_skb(struct ieee80211_local *local,
+			       struct sk_buff *skb);
+int ieee80211_add_pending_skbs(struct ieee80211_local *local,
+			       struct sk_buff_head *skbs);
 
 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
 			 u16 transaction, u16 auth_alg,
 			 u8 *extra, size_t extra_len,
 			 const u8 *bssid, int encrypt);
+int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
+			     const u8 *ie, size_t ie_len);
 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
-			      u8 *ssid, size_t ssid_len,
-			      u8 *ie, size_t ie_len);
+			      const u8 *ssid, size_t ssid_len,
+			      const u8 *ie, size_t ie_len);
 
 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
 				  const size_t supp_rates_len,
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 91e8e1bacaaa..b7c8a4484298 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -20,6 +20,7 @@
 #include "debugfs_netdev.h"
 #include "mesh.h"
 #include "led.h"
+#include "driver-ops.h"
 
 /**
  * DOC: Interface list locking
@@ -164,14 +165,12 @@ static int ieee80211_open(struct net_device *dev)
 	}
 
 	if (local->open_count == 0) {
-		res = 0;
-		if (local->ops->start)
-			res = local->ops->start(local_to_hw(local));
+		res = drv_start(local);
 		if (res)
 			goto err_del_bss;
 		/* we're brought up, everything changes */
 		hw_reconf_flags = ~0;
-		ieee80211_led_radio(local, local->hw.conf.radio_enabled);
+		ieee80211_led_radio(local, true);
 	}
 
 	/*
@@ -199,8 +198,8 @@ static int ieee80211_open(struct net_device *dev)
 	 * Validate the MAC address for this device.
 	 */
 	if (!is_valid_ether_addr(dev->dev_addr)) {
-		if (!local->open_count && local->ops->stop)
-			local->ops->stop(local_to_hw(local));
+		if (!local->open_count)
+			drv_stop(local);
 		return -EADDRNOTAVAIL;
 	}
 
@@ -235,17 +234,13 @@ static int ieee80211_open(struct net_device *dev)
 		netif_addr_unlock_bh(local->mdev);
 		break;
 	case NL80211_IFTYPE_STATION:
-	case NL80211_IFTYPE_ADHOC:
-		if (sdata->vif.type == NL80211_IFTYPE_STATION)
-			sdata->u.mgd.flags &= ~IEEE80211_STA_PREV_BSSID_SET;
-		else
-			sdata->u.ibss.flags &= ~IEEE80211_IBSS_PREV_BSSID_SET;
+		sdata->u.mgd.flags &= ~IEEE80211_STA_PREV_BSSID_SET;
 		/* fall through */
 	default:
 		conf.vif = &sdata->vif;
 		conf.type = sdata->vif.type;
 		conf.mac_addr = dev->dev_addr;
-		res = local->ops->add_interface(local_to_hw(local), &conf);
+		res = drv_add_interface(local, &conf);
 		if (res)
 			goto err_stop;
 
@@ -306,6 +301,8 @@ static int ieee80211_open(struct net_device *dev)
 	if (sdata->flags & IEEE80211_SDATA_PROMISC)
 		atomic_inc(&local->iff_promiscs);
 
+	hw_reconf_flags |= __ieee80211_recalc_idle(local);
+
 	local->open_count++;
 	if (hw_reconf_flags) {
 		ieee80211_hw_config(local, hw_reconf_flags);
@@ -317,6 +314,8 @@ static int ieee80211_open(struct net_device *dev)
 		ieee80211_set_wmm_default(sdata);
 	}
 
+	ieee80211_recalc_ps(local, -1);
+
 	/*
 	 * ieee80211_sta_work is disabled while network interface
 	 * is down. Therefore, some configuration changes may not
@@ -325,17 +324,15 @@ static int ieee80211_open(struct net_device *dev)
 	 */
 	if (sdata->vif.type == NL80211_IFTYPE_STATION)
 		queue_work(local->hw.workqueue, &sdata->u.mgd.work);
-	else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
-		queue_work(local->hw.workqueue, &sdata->u.ibss.work);
 
 	netif_tx_start_all_queues(dev);
 
 	return 0;
  err_del_interface:
-	local->ops->remove_interface(local_to_hw(local), &conf);
+	drv_remove_interface(local, &conf);
  err_stop:
-	if (!local->open_count && local->ops->stop)
-		local->ops->stop(local_to_hw(local));
+	if (!local->open_count)
+		drv_stop(local);
  err_del_bss:
 	sdata->bss = NULL;
 	if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
@@ -497,7 +494,6 @@ static int ieee80211_stop(struct net_device *dev)
 		/* fall through */
 	case NL80211_IFTYPE_ADHOC:
 		if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
-			memset(sdata->u.ibss.bssid, 0, ETH_ALEN);
 			del_timer_sync(&sdata->u.ibss.timer);
 			cancel_work_sync(&sdata->u.ibss.work);
 			synchronize_rcu();
@@ -549,19 +545,22 @@ static int ieee80211_stop(struct net_device *dev)
 		conf.mac_addr = dev->dev_addr;
 		/* disable all keys for as long as this netdev is down */
 		ieee80211_disable_keys(sdata);
-		local->ops->remove_interface(local_to_hw(local), &conf);
+		drv_remove_interface(local, &conf);
 	}
 
 	sdata->bss = NULL;
 
+	hw_reconf_flags |= __ieee80211_recalc_idle(local);
+
+	ieee80211_recalc_ps(local, -1);
+
 	if (local->open_count == 0) {
 		if (netif_running(local->mdev))
 			dev_close(local->mdev);
 
-		if (local->ops->stop)
-			local->ops->stop(local_to_hw(local));
+		drv_stop(local);
 
-		ieee80211_led_radio(local, 0);
+		ieee80211_led_radio(local, false);
 
 		flush_workqueue(local->hw.workqueue);
 
@@ -649,7 +648,8 @@ static void ieee80211_teardown_sdata(struct net_device *dev)
 			mesh_rmc_free(sdata);
 		break;
 	case NL80211_IFTYPE_ADHOC:
-		kfree_skb(sdata->u.ibss.probe_resp);
+		if (WARN_ON(sdata->u.ibss.presp))
+			kfree_skb(sdata->u.ibss.presp);
 		break;
 	case NL80211_IFTYPE_STATION:
 		kfree(sdata->u.mgd.extra_ie);
@@ -896,3 +896,74 @@ void ieee80211_remove_interfaces(struct ieee80211_local *local)
 		unregister_netdevice(sdata->dev);
 	}
 }
+
+static u32 ieee80211_idle_off(struct ieee80211_local *local,
+			      const char *reason)
+{
+	if (!(local->hw.conf.flags & IEEE80211_CONF_IDLE))
+		return 0;
+
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+	printk(KERN_DEBUG "%s: device no longer idle - %s\n",
+	       wiphy_name(local->hw.wiphy), reason);
+#endif
+
+	local->hw.conf.flags &= ~IEEE80211_CONF_IDLE;
+	return IEEE80211_CONF_CHANGE_IDLE;
+}
+
+static u32 ieee80211_idle_on(struct ieee80211_local *local)
+{
+	if (local->hw.conf.flags & IEEE80211_CONF_IDLE)
+		return 0;
+
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+	printk(KERN_DEBUG "%s: device now idle\n",
+	       wiphy_name(local->hw.wiphy));
+#endif
+
+	local->hw.conf.flags |= IEEE80211_CONF_IDLE;
+	return IEEE80211_CONF_CHANGE_IDLE;
+}
+
+u32 __ieee80211_recalc_idle(struct ieee80211_local *local)
+{
+	struct ieee80211_sub_if_data *sdata;
+	int count = 0;
+
+	if (local->hw_scanning || local->sw_scanning)
+		return ieee80211_idle_off(local, "scanning");
+
+	list_for_each_entry(sdata, &local->interfaces, list) {
+		if (!netif_running(sdata->dev))
+			continue;
+		/* do not count disabled managed interfaces */
+		if (sdata->vif.type == NL80211_IFTYPE_STATION &&
+		    sdata->u.mgd.state == IEEE80211_STA_MLME_DISABLED)
+			continue;
+		/* do not count unused IBSS interfaces */
+		if (sdata->vif.type == NL80211_IFTYPE_ADHOC &&
+		    !sdata->u.ibss.ssid_len)
+			continue;
+		/* count everything else */
+		count++;
+	}
+
+	if (!count)
+		return ieee80211_idle_on(local);
+	else
+		return ieee80211_idle_off(local, "in use");
+
+	return 0;
+}
+
+void ieee80211_recalc_idle(struct ieee80211_local *local)
+{
+	u32 chg;
+
+	mutex_lock(&local->iflist_mtx);
+	chg = __ieee80211_recalc_idle(local);
+	mutex_unlock(&local->iflist_mtx);
+	if (chg)
+		ieee80211_hw_config(local, chg);
+}
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 687acf23054d..ce267565e180 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -16,6 +16,7 @@
 #include <linux/rtnetlink.h>
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "debugfs_key.h"
 #include "aes_ccm.h"
 #include "aes_cmac.h"
@@ -136,8 +137,7 @@ static void ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
 				     struct ieee80211_sub_if_data,
 				     u.ap);
 
-	ret = key->local->ops->set_key(local_to_hw(key->local), SET_KEY,
-				       &sdata->vif, sta, &key->conf);
+	ret = drv_set_key(key->local, SET_KEY, &sdata->vif, sta, &key->conf);
 
 	if (!ret) {
 		spin_lock(&todo_lock);
@@ -179,8 +179,8 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key)
 				     struct ieee80211_sub_if_data,
 				     u.ap);
 
-	ret = key->local->ops->set_key(local_to_hw(key->local), DISABLE_KEY,
-				       &sdata->vif, sta, &key->conf);
+	ret = drv_set_key(key->local, DISABLE_KEY, &sdata->vif,
+			  sta, &key->conf);
 
 	if (ret)
 		printk(KERN_ERR "mac80211-%s: failed to remove key "
@@ -290,9 +290,11 @@ static void __ieee80211_key_replace(struct ieee80211_sub_if_data *sdata,
 struct ieee80211_key *ieee80211_key_alloc(enum ieee80211_key_alg alg,
 					  int idx,
 					  size_t key_len,
-					  const u8 *key_data)
+					  const u8 *key_data,
+					  size_t seq_len, const u8 *seq)
 {
 	struct ieee80211_key *key;
+	int i, j;
 
 	BUG_ON(idx < 0 || idx >= NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS);
 
@@ -318,14 +320,31 @@ struct ieee80211_key *ieee80211_key_alloc(enum ieee80211_key_alg alg,
 	case ALG_TKIP:
 		key->conf.iv_len = TKIP_IV_LEN;
 		key->conf.icv_len = TKIP_ICV_LEN;
+		if (seq) {
+			for (i = 0; i < NUM_RX_DATA_QUEUES; i++) {
+				key->u.tkip.rx[i].iv32 =
+					get_unaligned_le32(&seq[2]);
+				key->u.tkip.rx[i].iv16 =
+					get_unaligned_le16(seq);
+			}
+		}
 		break;
 	case ALG_CCMP:
 		key->conf.iv_len = CCMP_HDR_LEN;
 		key->conf.icv_len = CCMP_MIC_LEN;
+		if (seq) {
+			for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
+				for (j = 0; j < CCMP_PN_LEN; j++)
+					key->u.ccmp.rx_pn[i][j] =
+						seq[CCMP_PN_LEN - j - 1];
+		}
 		break;
 	case ALG_AES_CMAC:
 		key->conf.iv_len = 0;
 		key->conf.icv_len = sizeof(struct ieee80211_mmie);
+		if (seq)
+			for (j = 0; j < 6; j++)
+				key->u.aes_cmac.rx_pn[j] = seq[6 - j - 1];
 		break;
 	}
 	memcpy(key->conf.key, key_data, key_len);
diff --git a/net/mac80211/key.h b/net/mac80211/key.h
index 215d3ef42a4f..9572e00f532c 100644
--- a/net/mac80211/key.h
+++ b/net/mac80211/key.h
@@ -144,7 +144,8 @@ struct ieee80211_key {
 struct ieee80211_key *ieee80211_key_alloc(enum ieee80211_key_alg alg,
 					  int idx,
 					  size_t key_len,
-					  const u8 *key_data);
+					  const u8 *key_data,
+					  size_t seq_len, const u8 *seq);
 /*
  * Insert a key into data structures (sdata, sta if necessary)
  * to make it used, free old key.
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 14134193cd17..092a017b237e 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -21,10 +21,12 @@
 #include <linux/wireless.h>
 #include <linux/rtnetlink.h>
 #include <linux/bitmap.h>
+#include <linux/pm_qos_params.h>
 #include <net/net_namespace.h>
 #include <net/cfg80211.h>
 
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "rate.h"
 #include "mesh.h"
 #include "wep.h"
@@ -80,10 +82,9 @@ void ieee80211_configure_filter(struct ieee80211_local *local)
 	/* be a bit nasty */
 	new_flags |= (1<<31);
 
-	local->ops->configure_filter(local_to_hw(local),
-				     changed_flags, &new_flags,
-				     local->mdev->mc_count,
-				     local->mdev->mc_list);
+	drv_configure_filter(local, changed_flags, &new_flags,
+			     local->mdev->mc_count,
+			     local->mdev->mc_list);
 
 	WARN_ON(new_flags & (1<<31));
 
@@ -151,93 +152,19 @@ static void ieee80211_master_set_multicast_list(struct net_device *dev)
 	ieee80211_configure_filter(local);
 }
 
-/* everything else */
-
-int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_if_conf conf;
-
-	if (WARN_ON(!netif_running(sdata->dev)))
-		return 0;
-
-	memset(&conf, 0, sizeof(conf));
-
-	if (sdata->vif.type == NL80211_IFTYPE_STATION)
-		conf.bssid = sdata->u.mgd.bssid;
-	else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
-		conf.bssid = sdata->u.ibss.bssid;
-	else if (sdata->vif.type == NL80211_IFTYPE_AP)
-		conf.bssid = sdata->dev->dev_addr;
-	else if (ieee80211_vif_is_mesh(&sdata->vif)) {
-		static const u8 zero[ETH_ALEN] = { 0 };
-		conf.bssid = zero;
-	} else {
-		WARN_ON(1);
-		return -EINVAL;
-	}
-
-	if (!local->ops->config_interface)
-		return 0;
-
-	switch (sdata->vif.type) {
-	case NL80211_IFTYPE_AP:
-	case NL80211_IFTYPE_ADHOC:
-	case NL80211_IFTYPE_MESH_POINT:
-		break;
-	default:
-		/* do not warn to simplify caller in scan.c */
-		changed &= ~IEEE80211_IFCC_BEACON_ENABLED;
-		if (WARN_ON(changed & IEEE80211_IFCC_BEACON))
-			return -EINVAL;
-		changed &= ~IEEE80211_IFCC_BEACON;
-		break;
-	}
-
-	if (changed & IEEE80211_IFCC_BEACON_ENABLED) {
-		if (local->sw_scanning) {
-			conf.enable_beacon = false;
-		} else {
-			/*
-			 * Beacon should be enabled, but AP mode must
-			 * check whether there is a beacon configured.
-			 */
-			switch (sdata->vif.type) {
-			case NL80211_IFTYPE_AP:
-				conf.enable_beacon =
-					!!rcu_dereference(sdata->u.ap.beacon);
-				break;
-			case NL80211_IFTYPE_ADHOC:
-				conf.enable_beacon = !!sdata->u.ibss.probe_resp;
-				break;
-			case NL80211_IFTYPE_MESH_POINT:
-				conf.enable_beacon = true;
-				break;
-			default:
-				/* not reached */
-				WARN_ON(1);
-				break;
-			}
-		}
-	}
-
-	conf.changed = changed;
-
-	return local->ops->config_interface(local_to_hw(local),
-					    &sdata->vif, &conf);
-}
-
 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 {
-	struct ieee80211_channel *chan;
+	struct ieee80211_channel *chan, *scan_chan;
 	int ret = 0;
 	int power;
 	enum nl80211_channel_type channel_type;
 
 	might_sleep();
 
-	if (local->sw_scanning) {
-		chan = local->scan_channel;
+	scan_chan = local->scan_channel;
+
+	if (scan_chan) {
+		chan = scan_chan;
 		channel_type = NL80211_CHAN_NO_HT;
 	} else {
 		chan = local->oper_channel;
@@ -251,7 +178,7 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 		changed |= IEEE80211_CONF_CHANGE_CHANNEL;
 	}
 
-	if (local->sw_scanning)
+	if (scan_chan)
 		power = chan->max_power;
 	else
 		power = local->power_constr_level ?
@@ -267,7 +194,7 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 	}
 
 	if (changed && local->open_count) {
-		ret = local->ops->config(local_to_hw(local), changed);
+		ret = drv_config(local, changed);
 		/*
 		 * Goal:
 		 * HW reconfiguration should never fail, the driver has told
@@ -292,18 +219,78 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
 				      u32 changed)
 {
 	struct ieee80211_local *local = sdata->local;
+	static const u8 zero[ETH_ALEN] = { 0 };
 
-	if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN))
+	if (!changed)
 		return;
 
-	if (!changed)
+	if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+		/*
+		 * While not associated, claim a BSSID of all-zeroes
+		 * so that drivers don't do any weird things with the
+		 * BSSID at that time.
+		 */
+		if (sdata->vif.bss_conf.assoc)
+			sdata->vif.bss_conf.bssid = sdata->u.mgd.bssid;
+		else
+			sdata->vif.bss_conf.bssid = zero;
+	} else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+		sdata->vif.bss_conf.bssid = sdata->u.ibss.bssid;
+	else if (sdata->vif.type == NL80211_IFTYPE_AP)
+		sdata->vif.bss_conf.bssid = sdata->dev->dev_addr;
+	else if (ieee80211_vif_is_mesh(&sdata->vif)) {
+		sdata->vif.bss_conf.bssid = zero;
+	} else {
+		WARN_ON(1);
 		return;
+	}
+
+	switch (sdata->vif.type) {
+	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_ADHOC:
+	case NL80211_IFTYPE_MESH_POINT:
+		break;
+	default:
+		/* do not warn to simplify caller in scan.c */
+		changed &= ~BSS_CHANGED_BEACON_ENABLED;
+		if (WARN_ON(changed & BSS_CHANGED_BEACON))
+			return;
+		break;
+	}
+
+	if (changed & BSS_CHANGED_BEACON_ENABLED) {
+		if (local->sw_scanning) {
+			sdata->vif.bss_conf.enable_beacon = false;
+		} else {
+			/*
+			 * Beacon should be enabled, but AP mode must
+			 * check whether there is a beacon configured.
+			 */
+			switch (sdata->vif.type) {
+			case NL80211_IFTYPE_AP:
+				sdata->vif.bss_conf.enable_beacon =
+					!!rcu_dereference(sdata->u.ap.beacon);
+				break;
+			case NL80211_IFTYPE_ADHOC:
+				sdata->vif.bss_conf.enable_beacon =
+					!!rcu_dereference(sdata->u.ibss.presp);
+				break;
+			case NL80211_IFTYPE_MESH_POINT:
+				sdata->vif.bss_conf.enable_beacon = true;
+				break;
+			default:
+				/* not reached */
+				WARN_ON(1);
+				break;
+			}
+		}
+	}
+
+	drv_bss_info_changed(local, &sdata->vif,
+			     &sdata->vif.bss_conf, changed);
 
-	if (local->ops->bss_info_changed)
-		local->ops->bss_info_changed(local_to_hw(local),
-					     &sdata->vif,
-					     &sdata->vif.bss_conf,
-					     changed);
+	/* DEPRECATED */
+	local->hw.conf.beacon_int = sdata->vif.bss_conf.beacon_int;
 }
 
 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata)
@@ -382,60 +369,12 @@ static void ieee80211_tasklet_handler(unsigned long data)
 	}
 }
 
-/* Remove added headers (e.g., QoS control), encryption header/MIC, etc. to
- * make a prepared TX frame (one that has been given to hw) to look like brand
- * new IEEE 802.11 frame that is ready to go through TX processing again.
- */
-static void ieee80211_remove_tx_extra(struct ieee80211_local *local,
-				      struct ieee80211_key *key,
-				      struct sk_buff *skb)
-{
-	unsigned int hdrlen, iv_len, mic_len;
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
-
-	hdrlen = ieee80211_hdrlen(hdr->frame_control);
-
-	if (!key)
-		goto no_key;
-
-	switch (key->conf.alg) {
-	case ALG_WEP:
-		iv_len = WEP_IV_LEN;
-		mic_len = WEP_ICV_LEN;
-		break;
-	case ALG_TKIP:
-		iv_len = TKIP_IV_LEN;
-		mic_len = TKIP_ICV_LEN;
-		break;
-	case ALG_CCMP:
-		iv_len = CCMP_HDR_LEN;
-		mic_len = CCMP_MIC_LEN;
-		break;
-	default:
-		goto no_key;
-	}
-
-	if (skb->len >= hdrlen + mic_len &&
-	    !(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
-		skb_trim(skb, skb->len - mic_len);
-	if (skb->len >= hdrlen + iv_len) {
-		memmove(skb->data + iv_len, skb->data, hdrlen);
-		hdr = (struct ieee80211_hdr *)skb_pull(skb, iv_len);
-	}
-
-no_key:
-	if (ieee80211_is_data_qos(hdr->frame_control)) {
-		hdr->frame_control &= ~cpu_to_le16(IEEE80211_STYPE_QOS_DATA);
-		memmove(skb->data + IEEE80211_QOS_CTL_LEN, skb->data,
-			hdrlen - IEEE80211_QOS_CTL_LEN);
-		skb_pull(skb, IEEE80211_QOS_CTL_LEN);
-	}
-}
-
 static void ieee80211_handle_filtered_frame(struct ieee80211_local *local,
 					    struct sta_info *sta,
 					    struct sk_buff *skb)
 {
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+
 	sta->tx_filtered_count++;
 
 	/*
@@ -477,16 +416,15 @@ static void ieee80211_handle_filtered_frame(struct ieee80211_local *local,
 	 */
 	if (test_sta_flags(sta, WLAN_STA_PS) &&
 	    skb_queue_len(&sta->tx_filtered) < STA_MAX_TX_BUFFER) {
-		ieee80211_remove_tx_extra(local, sta->key, skb);
 		skb_queue_tail(&sta->tx_filtered, skb);
 		return;
 	}
 
-	if (!test_sta_flags(sta, WLAN_STA_PS) && !skb->requeue) {
+	if (!test_sta_flags(sta, WLAN_STA_PS) &&
+	    !(info->flags & IEEE80211_TX_INTFL_RETRIED)) {
 		/* Software retry the packet once */
-		skb->requeue = 1;
-		ieee80211_remove_tx_extra(local, sta->key, skb);
-		dev_queue_xmit(skb);
+		info->flags |= IEEE80211_TX_INTFL_RETRIED;
+		ieee80211_add_pending_skb(local, skb);
 		return;
 	}
 
@@ -696,6 +634,28 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
 }
 EXPORT_SYMBOL(ieee80211_tx_status);
 
+static void ieee80211_restart_work(struct work_struct *work)
+{
+	struct ieee80211_local *local =
+		container_of(work, struct ieee80211_local, restart_work);
+
+	rtnl_lock();
+	ieee80211_reconfig(local);
+	rtnl_unlock();
+}
+
+void ieee80211_restart_hw(struct ieee80211_hw *hw)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+
+	/* use this reason, __ieee80211_resume will unblock it */
+	ieee80211_stop_queues_by_reason(hw,
+		IEEE80211_QUEUE_STOP_REASON_SUSPEND);
+
+	schedule_work(&local->restart_work);
+}
+EXPORT_SYMBOL(ieee80211_restart_hw);
+
 struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 					const struct ieee80211_ops *ops)
 {
@@ -718,9 +678,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 	 * +-------------------------+
 	 *
 	 */
-	priv_size = ((sizeof(struct ieee80211_local) +
-		      NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST) +
-		    priv_data_len;
+	priv_size = ALIGN(sizeof(*local), NETDEV_ALIGN) + priv_data_len;
 
 	wiphy = wiphy_new(&mac80211_config_ops, priv_size);
 
@@ -728,17 +686,16 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 		return NULL;
 
 	wiphy->privid = mac80211_wiphy_privid;
-	wiphy->max_scan_ssids = 4;
+
 	/* Yes, putting cfg80211_bss into ieee80211_bss is a hack */
 	wiphy->bss_priv_size = sizeof(struct ieee80211_bss) -
 			       sizeof(struct cfg80211_bss);
 
 	local = wiphy_priv(wiphy);
+
 	local->hw.wiphy = wiphy;
 
-	local->hw.priv = (char *)local +
-			 ((sizeof(struct ieee80211_local) +
-			   NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST);
+	local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN);
 
 	BUG_ON(!ops->tx);
 	BUG_ON(!ops->start);
@@ -752,15 +709,14 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 	/* set up some defaults */
 	local->hw.queues = 1;
 	local->hw.max_rates = 1;
-	local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
-	local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
-	local->hw.conf.long_frame_max_tx_count = 4;
-	local->hw.conf.short_frame_max_tx_count = 7;
+	local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
+	local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
 	local->hw.conf.radio_enabled = true;
 	local->user_power_level = -1;
 
 	INIT_LIST_HEAD(&local->interfaces);
 	mutex_init(&local->iflist_mtx);
+	mutex_init(&local->scan_mtx);
 
 	spin_lock_init(&local->key_lock);
 
@@ -768,6 +724,8 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 
 	INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work);
 
+	INIT_WORK(&local->restart_work, ieee80211_restart_work);
+
 	INIT_WORK(&local->dynamic_ps_enable_work,
 		  ieee80211_dynamic_ps_enable_work);
 	INIT_WORK(&local->dynamic_ps_disable_work,
@@ -821,7 +779,17 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	enum ieee80211_band band;
 	struct net_device *mdev;
 	struct ieee80211_master_priv *mpriv;
-	int channels, i, j;
+	int channels, i, j, max_bitrates;
+	bool supp_ht;
+	static const u32 cipher_suites[] = {
+		WLAN_CIPHER_SUITE_WEP40,
+		WLAN_CIPHER_SUITE_WEP104,
+		WLAN_CIPHER_SUITE_TKIP,
+		WLAN_CIPHER_SUITE_CCMP,
+
+		/* keep last -- depends on hw flags! */
+		WLAN_CIPHER_SUITE_AES_CMAC
+	};
 
 	/*
 	 * generic code guarantees at least one band,
@@ -829,18 +797,25 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	 * that hw.conf.channel is assigned
 	 */
 	channels = 0;
+	max_bitrates = 0;
+	supp_ht = false;
 	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
 		struct ieee80211_supported_band *sband;
 
 		sband = local->hw.wiphy->bands[band];
-		if (sband && !local->oper_channel) {
+		if (!sband)
+			continue;
+		if (!local->oper_channel) {
 			/* init channel we're on */
 			local->hw.conf.channel =
-			local->oper_channel =
-			local->scan_channel = &sband->channels[0];
+			local->oper_channel = &sband->channels[0];
+			local->hw.conf.channel_type = NL80211_CHAN_NO_HT;
 		}
-		if (sband)
-			channels += sband->n_channels;
+		channels += sband->n_channels;
+
+		if (max_bitrates < sband->n_bitrates)
+			max_bitrates = sband->n_bitrates;
+		supp_ht = supp_ht || sband->ht_cap.ht_supported;
 	}
 
 	local->int_scan_req.n_channels = channels;
@@ -860,6 +835,37 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
 		local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
 
+	/*
+	 * Calculate scan IE length -- we need this to alloc
+	 * memory and to subtract from the driver limit. It
+	 * includes the (extended) supported rates and HT
+	 * information -- SSID is the driver's responsibility.
+	 */
+	local->scan_ies_len = 4 + max_bitrates; /* (ext) supp rates */
+	if (supp_ht)
+		local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap);
+
+	if (!local->ops->hw_scan) {
+		/* For hw_scan, driver needs to set these up. */
+		local->hw.wiphy->max_scan_ssids = 4;
+		local->hw.wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
+	}
+
+	/*
+	 * If the driver supports any scan IEs, then assume the
+	 * limit includes the IEs mac80211 will add, otherwise
+	 * leave it at zero and let the driver sort it out; we
+	 * still pass our IEs to the driver but userspace will
+	 * not be allowed to in that case.
+	 */
+	if (local->hw.wiphy->max_scan_ie_len)
+		local->hw.wiphy->max_scan_ie_len -= local->scan_ies_len;
+
+	local->hw.wiphy->cipher_suites = cipher_suites;
+	local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
+	if (!(local->hw.flags & IEEE80211_HW_MFP_CAPABLE))
+		local->hw.wiphy->n_cipher_suites--;
+
 	result = wiphy_register(local->hw.wiphy);
 	if (result < 0)
 		goto fail_wiphy_register;
@@ -898,9 +904,6 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 
 	debugfs_hw_add(local);
 
-	if (local->hw.conf.beacon_int < 10)
-		local->hw.conf.beacon_int = 100;
-
 	if (local->hw.max_listen_interval == 0)
 		local->hw.max_listen_interval = 1;
 
@@ -965,25 +968,38 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 		}
 	}
 
+	local->network_latency_notifier.notifier_call =
+		ieee80211_max_network_latency;
+	result = pm_qos_add_notifier(PM_QOS_NETWORK_LATENCY,
+				     &local->network_latency_notifier);
+
+	if (result) {
+		rtnl_lock();
+		goto fail_pm_qos;
+	}
+
 	return 0;
 
-fail_rate:
+ fail_pm_qos:
+	ieee80211_led_exit(local);
+	ieee80211_remove_interfaces(local);
+ fail_rate:
 	unregister_netdevice(local->mdev);
 	local->mdev = NULL;
-fail_dev:
+ fail_dev:
 	rtnl_unlock();
 	ieee80211_wep_free(local);
-fail_wep:
+ fail_wep:
 	sta_info_stop(local);
-fail_sta_info:
+ fail_sta_info:
 	debugfs_hw_del(local);
 	destroy_workqueue(local->hw.workqueue);
-fail_workqueue:
+ fail_workqueue:
 	if (local->mdev)
 		free_netdev(local->mdev);
-fail_mdev_alloc:
+ fail_mdev_alloc:
 	wiphy_unregister(local->hw.wiphy);
-fail_wiphy_register:
+ fail_wiphy_register:
 	kfree(local->int_scan_req.channels);
 	return result;
 }
@@ -996,6 +1012,9 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
 	tasklet_kill(&local->tx_pending_tasklet);
 	tasklet_kill(&local->tasklet);
 
+	pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY,
+			       &local->network_latency_notifier);
+
 	rtnl_lock();
 
 	/*
@@ -1038,6 +1057,7 @@ void ieee80211_free_hw(struct ieee80211_hw *hw)
 	struct ieee80211_local *local = hw_to_local(hw);
 
 	mutex_destroy(&local->iflist_mtx);
+	mutex_destroy(&local->scan_mtx);
 
 	wiphy_free(local->hw.wiphy);
 }
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 9a3e5de0410a..fc712e60705d 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -21,6 +21,9 @@
 #define CAPAB_OFFSET 17
 #define ACCEPT_PLINKS 0x80
 
+#define TMR_RUNNING_HK	0
+#define TMR_RUNNING_MP	1
+
 int mesh_allocated;
 static struct kmem_cache *rm_cache;
 
@@ -45,6 +48,12 @@ static void ieee80211_mesh_housekeeping_timer(unsigned long data)
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 
 	ifmsh->housekeeping = true;
+
+	if (local->quiescing) {
+		set_bit(TMR_RUNNING_HK, &ifmsh->timers_running);
+		return;
+	}
+
 	queue_work(local->hw.workqueue, &ifmsh->work);
 }
 
@@ -343,6 +352,11 @@ static void ieee80211_mesh_path_timer(unsigned long data)
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 	struct ieee80211_local *local = sdata->local;
 
+	if (local->quiescing) {
+		set_bit(TMR_RUNNING_MP, &ifmsh->timers_running);
+		return;
+	}
+
 	queue_work(local->hw.workqueue, &ifmsh->work);
 }
 
@@ -417,13 +431,39 @@ static void ieee80211_mesh_housekeeping(struct ieee80211_sub_if_data *sdata,
 
 	free_plinks = mesh_plink_availables(sdata);
 	if (free_plinks != sdata->u.mesh.accepting_plinks)
-		ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON);
+		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON);
 
 	ifmsh->housekeeping = false;
 	mod_timer(&ifmsh->housekeeping_timer,
 		  round_jiffies(jiffies + IEEE80211_MESH_HOUSEKEEPING_INTERVAL));
 }
 
+#ifdef CONFIG_PM
+void ieee80211_mesh_quiesce(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+
+	/* might restart the timer but that doesn't matter */
+	cancel_work_sync(&ifmsh->work);
+
+	/* use atomic bitops in case both timers fire at the same time */
+
+	if (del_timer_sync(&ifmsh->housekeeping_timer))
+		set_bit(TMR_RUNNING_HK, &ifmsh->timers_running);
+	if (del_timer_sync(&ifmsh->mesh_path_timer))
+		set_bit(TMR_RUNNING_MP, &ifmsh->timers_running);
+}
+
+void ieee80211_mesh_restart(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+
+	if (test_and_clear_bit(TMR_RUNNING_HK, &ifmsh->timers_running))
+		add_timer(&ifmsh->housekeeping_timer);
+	if (test_and_clear_bit(TMR_RUNNING_MP, &ifmsh->timers_running))
+		add_timer(&ifmsh->mesh_path_timer);
+}
+#endif
 
 void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
 {
@@ -432,8 +472,8 @@ void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
 
 	ifmsh->housekeeping = true;
 	queue_work(local->hw.workqueue, &ifmsh->work);
-	ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON |
-				   IEEE80211_IFCC_BEACON_ENABLED);
+	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON |
+						BSS_CHANGED_BEACON_ENABLED);
 }
 
 void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)
diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h
index d891d7ddccd7..c7d72819cdd2 100644
--- a/net/mac80211/mesh.h
+++ b/net/mac80211/mesh.h
@@ -191,12 +191,8 @@ struct mesh_rmc {
 #define PLINK_CATEGORY		30
 #define MESH_PATH_SEL_CATEGORY	32
 
-/* Mesh Header Flags */
-#define IEEE80211S_FLAGS_AE	0x3
-
 /* Public interfaces */
 /* Various */
-int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr);
 int ieee80211_new_mesh_header(struct ieee80211s_hdr *meshhdr,
 		struct ieee80211_sub_if_data *sdata);
 int mesh_rmc_check(u8 *addr, struct ieee80211s_hdr *mesh_hdr,
@@ -267,6 +263,8 @@ void mesh_path_timer(unsigned long data);
 void mesh_path_flush_by_nexthop(struct sta_info *sta);
 void mesh_path_discard_frame(struct sk_buff *skb,
 		struct ieee80211_sub_if_data *sdata);
+void mesh_path_quiesce(struct ieee80211_sub_if_data *sdata);
+void mesh_path_restart(struct ieee80211_sub_if_data *sdata);
 
 #ifdef CONFIG_MAC80211_MESH
 extern int mesh_allocated;
@@ -294,10 +292,20 @@ static inline void mesh_path_activate(struct mesh_path *mpath)
 
 void ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local);
 
+void ieee80211_mesh_quiesce(struct ieee80211_sub_if_data *sdata);
+void ieee80211_mesh_restart(struct ieee80211_sub_if_data *sdata);
+void mesh_plink_quiesce(struct sta_info *sta);
+void mesh_plink_restart(struct sta_info *sta);
 #else
 #define mesh_allocated	0
 static inline void
 ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local) {}
+static inline void ieee80211_mesh_quiesce(struct ieee80211_sub_if_data *sdata)
+{}
+static inline void ieee80211_mesh_restart(struct ieee80211_sub_if_data *sdata)
+{}
+static inline void mesh_plink_quiesce(struct sta_info *sta) {}
+static inline void mesh_plink_restart(struct sta_info *sta) {}
 #endif
 
 #endif /* IEEE80211S_H */
diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index 60b35accda91..003cb470ac84 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -836,8 +836,14 @@ void mesh_path_timer(unsigned long data)
 	mpath = rcu_dereference(mpath);
 	if (!mpath)
 		goto endmpathtimer;
-	spin_lock_bh(&mpath->state_lock);
 	sdata = mpath->sdata;
+
+	if (sdata->local->quiescing) {
+		rcu_read_unlock();
+		return;
+	}
+
+	spin_lock_bh(&mpath->state_lock);
 	if (mpath->flags & MESH_PATH_RESOLVED ||
 			(!(mpath->flags & MESH_PATH_RESOLVING)))
 		mpath->flags &= ~(MESH_PATH_RESOLVING | MESH_PATH_RESOLVED);
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index a8bbdeca013a..cb14253587f1 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -266,6 +266,11 @@ static void mesh_plink_timer(unsigned long data)
 	 */
 	sta = (struct sta_info *) data;
 
+	if (sta->sdata->local->quiescing) {
+		sta->plink_timer_was_running = true;
+		return;
+	}
+
 	spin_lock_bh(&sta->lock);
 	if (sta->ignore_plink_timer) {
 		sta->ignore_plink_timer = false;
@@ -322,6 +327,22 @@ static void mesh_plink_timer(unsigned long data)
 	}
 }
 
+#ifdef CONFIG_PM
+void mesh_plink_quiesce(struct sta_info *sta)
+{
+	if (del_timer_sync(&sta->plink_timer))
+		sta->plink_timer_was_running = true;
+}
+
+void mesh_plink_restart(struct sta_info *sta)
+{
+	if (sta->plink_timer_was_running) {
+		add_timer(&sta->plink_timer);
+		sta->plink_timer_was_running = false;
+	}
+}
+#endif
+
 static inline void mesh_plink_timer_set(struct sta_info *sta, int timeout)
 {
 	sta->plink_timer.expires = jiffies + (HZ * timeout / 1000);
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 132938b073dc..aca22b00b6a3 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -17,10 +17,13 @@
 #include <linux/if_arp.h>
 #include <linux/etherdevice.h>
 #include <linux/rtnetlink.h>
+#include <linux/pm_qos_params.h>
+#include <linux/crc32.h>
 #include <net/mac80211.h>
 #include <asm/unaligned.h>
 
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "rate.h"
 #include "led.h"
 
@@ -30,9 +33,13 @@
 #define IEEE80211_ASSOC_TIMEOUT (HZ / 5)
 #define IEEE80211_ASSOC_MAX_TRIES 3
 #define IEEE80211_MONITORING_INTERVAL (2 * HZ)
+#define IEEE80211_PROBE_WAIT (HZ / 5)
 #define IEEE80211_PROBE_IDLE_TIME (60 * HZ)
 #define IEEE80211_RETRY_AUTH_INTERVAL (1 * HZ)
 
+#define TMR_RUNNING_TIMER	0
+#define TMR_RUNNING_CHANSW	1
+
 /* utils */
 static int ecw2cw(int ecw)
 {
@@ -80,6 +87,92 @@ static int ieee80211_compatible_rates(struct ieee80211_bss *bss,
 	return count;
 }
 
+/*
+ * ieee80211_enable_ht should be called only after the operating band
+ * has been determined as ht configuration depends on the hw's
+ * HT abilities for a specific band.
+ */
+static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
+			       struct ieee80211_ht_info *hti,
+			       u16 ap_ht_cap_flags)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_supported_band *sband;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+	struct sta_info *sta;
+	u32 changed = 0;
+	u16 ht_opmode;
+	bool enable_ht = true, ht_changed;
+	enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
+
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
+	/* HT is not supported */
+	if (!sband->ht_cap.ht_supported)
+		enable_ht = false;
+
+	/* check that channel matches the right operating channel */
+	if (local->hw.conf.channel->center_freq !=
+	    ieee80211_channel_to_frequency(hti->control_chan))
+		enable_ht = false;
+
+	if (enable_ht) {
+		channel_type = NL80211_CHAN_HT20;
+
+		if (!(ap_ht_cap_flags & IEEE80211_HT_CAP_40MHZ_INTOLERANT) &&
+		    (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) &&
+		    (hti->ht_param & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY)) {
+			switch(hti->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
+			case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
+				if (!(local->hw.conf.channel->flags &
+				    IEEE80211_CHAN_NO_HT40PLUS))
+					channel_type = NL80211_CHAN_HT40PLUS;
+				break;
+			case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
+				if (!(local->hw.conf.channel->flags &
+				    IEEE80211_CHAN_NO_HT40MINUS))
+					channel_type = NL80211_CHAN_HT40MINUS;
+				break;
+			}
+		}
+	}
+
+	ht_changed = conf_is_ht(&local->hw.conf) != enable_ht ||
+		     channel_type != local->hw.conf.channel_type;
+
+	local->oper_channel_type = channel_type;
+
+	if (ht_changed) {
+                /* channel_type change automatically detected */
+		ieee80211_hw_config(local, 0);
+
+		rcu_read_lock();
+
+		sta = sta_info_get(local, ifmgd->bssid);
+		if (sta)
+			rate_control_rate_update(local, sband, sta,
+						 IEEE80211_RC_HT_CHANGED);
+
+		rcu_read_unlock();
+        }
+
+	/* disable HT */
+	if (!enable_ht)
+		return 0;
+
+	ht_opmode = le16_to_cpu(hti->operation_mode);
+
+	/* if bss configuration changed store the new one */
+	if (!sdata->ht_opmode_valid ||
+	    sdata->vif.bss_conf.ht_operation_mode != ht_opmode) {
+		changed |= BSS_CHANGED_HT;
+		sdata->vif.bss_conf.ht_operation_mode = ht_opmode;
+		sdata->ht_opmode_valid = true;
+	}
+
+	return changed;
+}
+
 /* frame sending functions */
 
 static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
@@ -263,13 +356,13 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
 
 		switch (ht_info->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
 		case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
-			if (flags & IEEE80211_CHAN_NO_FAT_ABOVE) {
+			if (flags & IEEE80211_CHAN_NO_HT40PLUS) {
 				cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
 				cap &= ~IEEE80211_HT_CAP_SGI_40;
 			}
 			break;
 		case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
-			if (flags & IEEE80211_CHAN_NO_FAT_BELOW) {
+			if (flags & IEEE80211_CHAN_NO_HT40MINUS) {
 				cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
 				cap &= ~IEEE80211_HT_CAP_SGI_40;
 			}
@@ -325,6 +418,10 @@ static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
 	/* u.deauth.reason_code == u.disassoc.reason_code */
 	mgmt->u.deauth.reason_code = cpu_to_le16(reason);
 
+	if (stype == IEEE80211_STYPE_DEAUTH)
+		cfg80211_send_deauth(sdata->dev, (u8 *) mgmt, skb->len);
+	else
+		cfg80211_send_disassoc(sdata->dev, (u8 *) mgmt, skb->len);
 	ieee80211_tx_skb(sdata, skb, ifmgd->flags & IEEE80211_STA_MFP_ENABLED);
 }
 
@@ -359,6 +456,277 @@ void ieee80211_send_pspoll(struct ieee80211_local *local,
 	ieee80211_tx_skb(sdata, skb, 0);
 }
 
+void ieee80211_send_nullfunc(struct ieee80211_local *local,
+			     struct ieee80211_sub_if_data *sdata,
+			     int powersave)
+{
+	struct sk_buff *skb;
+	struct ieee80211_hdr *nullfunc;
+	__le16 fc;
+
+	if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
+		return;
+
+	skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24);
+	if (!skb) {
+		printk(KERN_DEBUG "%s: failed to allocate buffer for nullfunc "
+		       "frame\n", sdata->dev->name);
+		return;
+	}
+	skb_reserve(skb, local->hw.extra_tx_headroom);
+
+	nullfunc = (struct ieee80211_hdr *) skb_put(skb, 24);
+	memset(nullfunc, 0, 24);
+	fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC |
+			 IEEE80211_FCTL_TODS);
+	if (powersave)
+		fc |= cpu_to_le16(IEEE80211_FCTL_PM);
+	nullfunc->frame_control = fc;
+	memcpy(nullfunc->addr1, sdata->u.mgd.bssid, ETH_ALEN);
+	memcpy(nullfunc->addr2, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(nullfunc->addr3, sdata->u.mgd.bssid, ETH_ALEN);
+
+	ieee80211_tx_skb(sdata, skb, 0);
+}
+
+/* spectrum management related things */
+static void ieee80211_chswitch_work(struct work_struct *work)
+{
+	struct ieee80211_sub_if_data *sdata =
+		container_of(work, struct ieee80211_sub_if_data, u.mgd.chswitch_work);
+	struct ieee80211_bss *bss;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+
+	if (!netif_running(sdata->dev))
+		return;
+
+	bss = ieee80211_rx_bss_get(sdata->local, ifmgd->bssid,
+				   sdata->local->hw.conf.channel->center_freq,
+				   ifmgd->ssid, ifmgd->ssid_len);
+	if (!bss)
+		goto exit;
+
+	sdata->local->oper_channel = sdata->local->csa_channel;
+	/* XXX: shouldn't really modify cfg80211-owned data! */
+	if (!ieee80211_hw_config(sdata->local, IEEE80211_CONF_CHANGE_CHANNEL))
+		bss->cbss.channel = sdata->local->oper_channel;
+
+	ieee80211_rx_bss_put(sdata->local, bss);
+exit:
+	ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
+	ieee80211_wake_queues_by_reason(&sdata->local->hw,
+					IEEE80211_QUEUE_STOP_REASON_CSA);
+}
+
+static void ieee80211_chswitch_timer(unsigned long data)
+{
+	struct ieee80211_sub_if_data *sdata =
+		(struct ieee80211_sub_if_data *) data;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+
+	if (sdata->local->quiescing) {
+		set_bit(TMR_RUNNING_CHANSW, &ifmgd->timers_running);
+		return;
+	}
+
+	queue_work(sdata->local->hw.workqueue, &ifmgd->chswitch_work);
+}
+
+void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
+				      struct ieee80211_channel_sw_ie *sw_elem,
+				      struct ieee80211_bss *bss)
+{
+	struct ieee80211_channel *new_ch;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+	int new_freq = ieee80211_channel_to_frequency(sw_elem->new_ch_num);
+
+	if (ifmgd->state != IEEE80211_STA_MLME_ASSOCIATED)
+		return;
+
+	if (sdata->local->sw_scanning || sdata->local->hw_scanning)
+		return;
+
+	/* Disregard subsequent beacons if we are already running a timer
+	   processing a CSA */
+
+	if (ifmgd->flags & IEEE80211_STA_CSA_RECEIVED)
+		return;
+
+	new_ch = ieee80211_get_channel(sdata->local->hw.wiphy, new_freq);
+	if (!new_ch || new_ch->flags & IEEE80211_CHAN_DISABLED)
+		return;
+
+	sdata->local->csa_channel = new_ch;
+
+	if (sw_elem->count <= 1) {
+		queue_work(sdata->local->hw.workqueue, &ifmgd->chswitch_work);
+	} else {
+		ieee80211_stop_queues_by_reason(&sdata->local->hw,
+					IEEE80211_QUEUE_STOP_REASON_CSA);
+		ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED;
+		mod_timer(&ifmgd->chswitch_timer,
+			  jiffies +
+			  msecs_to_jiffies(sw_elem->count *
+					   bss->cbss.beacon_interval));
+	}
+}
+
+static void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
+					u16 capab_info, u8 *pwr_constr_elem,
+					u8 pwr_constr_elem_len)
+{
+	struct ieee80211_conf *conf = &sdata->local->hw.conf;
+
+	if (!(capab_info & WLAN_CAPABILITY_SPECTRUM_MGMT))
+		return;
+
+	/* Power constraint IE length should be 1 octet */
+	if (pwr_constr_elem_len != 1)
+		return;
+
+	if ((*pwr_constr_elem <= conf->channel->max_power) &&
+	    (*pwr_constr_elem != sdata->local->power_constr_level)) {
+		sdata->local->power_constr_level = *pwr_constr_elem;
+		ieee80211_hw_config(sdata->local, 0);
+	}
+}
+
+/* powersave */
+static void ieee80211_enable_ps(struct ieee80211_local *local,
+				struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_conf *conf = &local->hw.conf;
+
+	/*
+	 * If we are scanning right now then the parameters will
+	 * take effect when scan finishes.
+	 */
+	if (local->hw_scanning || local->sw_scanning)
+		return;
+
+	if (conf->dynamic_ps_timeout > 0 &&
+	    !(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)) {
+		mod_timer(&local->dynamic_ps_timer, jiffies +
+			  msecs_to_jiffies(conf->dynamic_ps_timeout));
+	} else {
+		if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
+			ieee80211_send_nullfunc(local, sdata, 1);
+		conf->flags |= IEEE80211_CONF_PS;
+		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+	}
+}
+
+static void ieee80211_change_ps(struct ieee80211_local *local)
+{
+	struct ieee80211_conf *conf = &local->hw.conf;
+
+	if (local->ps_sdata) {
+		ieee80211_enable_ps(local, local->ps_sdata);
+	} else if (conf->flags & IEEE80211_CONF_PS) {
+		conf->flags &= ~IEEE80211_CONF_PS;
+		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+		del_timer_sync(&local->dynamic_ps_timer);
+		cancel_work_sync(&local->dynamic_ps_enable_work);
+	}
+}
+
+/* need to hold RTNL or interface lock */
+void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency)
+{
+	struct ieee80211_sub_if_data *sdata, *found = NULL;
+	int count = 0;
+
+	if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS)) {
+		local->ps_sdata = NULL;
+		return;
+	}
+
+	list_for_each_entry(sdata, &local->interfaces, list) {
+		if (!netif_running(sdata->dev))
+			continue;
+		if (sdata->vif.type != NL80211_IFTYPE_STATION)
+			continue;
+		found = sdata;
+		count++;
+	}
+
+	if (count == 1 && found->u.mgd.powersave &&
+	    (found->u.mgd.flags & IEEE80211_STA_ASSOCIATED) &&
+	    !(found->u.mgd.flags & IEEE80211_STA_PROBEREQ_POLL)) {
+		s32 beaconint_us;
+
+		if (latency < 0)
+			latency = pm_qos_requirement(PM_QOS_NETWORK_LATENCY);
+
+		beaconint_us = ieee80211_tu_to_usec(
+					found->vif.bss_conf.beacon_int);
+
+		if (beaconint_us > latency) {
+			local->ps_sdata = NULL;
+		} else {
+			u8 dtimper = found->vif.bss_conf.dtim_period;
+			int maxslp = 1;
+
+			if (dtimper > 1)
+				maxslp = min_t(int, dtimper,
+						    latency / beaconint_us);
+
+			local->hw.conf.max_sleep_period = maxslp;
+			local->ps_sdata = found;
+		}
+	} else {
+		local->ps_sdata = NULL;
+	}
+
+	ieee80211_change_ps(local);
+}
+
+void ieee80211_dynamic_ps_disable_work(struct work_struct *work)
+{
+	struct ieee80211_local *local =
+		container_of(work, struct ieee80211_local,
+			     dynamic_ps_disable_work);
+
+	if (local->hw.conf.flags & IEEE80211_CONF_PS) {
+		local->hw.conf.flags &= ~IEEE80211_CONF_PS;
+		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+	}
+
+	ieee80211_wake_queues_by_reason(&local->hw,
+					IEEE80211_QUEUE_STOP_REASON_PS);
+}
+
+void ieee80211_dynamic_ps_enable_work(struct work_struct *work)
+{
+	struct ieee80211_local *local =
+		container_of(work, struct ieee80211_local,
+			     dynamic_ps_enable_work);
+	struct ieee80211_sub_if_data *sdata = local->ps_sdata;
+
+	/* can only happen when PS was just disabled anyway */
+	if (!sdata)
+		return;
+
+	if (local->hw.conf.flags & IEEE80211_CONF_PS)
+		return;
+
+	if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
+		ieee80211_send_nullfunc(local, sdata, 1);
+
+	local->hw.conf.flags |= IEEE80211_CONF_PS;
+	ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+}
+
+void ieee80211_dynamic_ps_timer(unsigned long data)
+{
+	struct ieee80211_local *local = (void *) data;
+
+	if (local->quiescing)
+		return;
+
+	queue_work(local->hw.workqueue, &local->dynamic_ps_enable_work);
+}
+
 /* MLME */
 static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
 				     struct ieee80211_if_managed *ifmgd,
@@ -424,41 +792,16 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
 		printk(KERN_DEBUG "%s: WMM queue=%d aci=%d acm=%d aifs=%d "
 		       "cWmin=%d cWmax=%d txop=%d\n",
-		       local->mdev->name, queue, aci, acm, params.aifs, params.cw_min,
-		       params.cw_max, params.txop);
+		       wiphy_name(local->hw.wiphy), queue, aci, acm,
+		       params.aifs, params.cw_min, params.cw_max, params.txop);
 #endif
-		if (local->ops->conf_tx &&
-		    local->ops->conf_tx(local_to_hw(local), queue, &params)) {
+		if (drv_conf_tx(local, queue, &params) && local->ops->conf_tx)
 			printk(KERN_DEBUG "%s: failed to set TX queue "
-			       "parameters for queue %d\n", local->mdev->name, queue);
-		}
+			       "parameters for queue %d\n",
+			       wiphy_name(local->hw.wiphy), queue);
 	}
 }
 
-static bool ieee80211_check_tim(struct ieee802_11_elems *elems, u16 aid)
-{
-	u8 mask;
-	u8 index, indexn1, indexn2;
-	struct ieee80211_tim_ie *tim = (struct ieee80211_tim_ie *) elems->tim;
-
-	if (unlikely(!tim || elems->tim_len < 4))
-		return false;
-
-	aid &= 0x3fff;
-	index = aid / 8;
-	mask  = 1 << (aid & 7);
-
-	indexn1 = tim->bitmap_ctrl & 0xfe;
-	indexn2 = elems->tim_len + indexn1 - 4;
-
-	if (index < indexn1 || index > indexn2)
-		return false;
-
-	index -= indexn1;
-
-	return !!(tim->virtual_map[index] & mask);
-}
-
 static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata,
 					   u16 capab, bool erp_valid, u8 erp)
 {
@@ -610,6 +953,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 		sdata->vif.bss_conf.timestamp = bss->cbss.tsf;
 		sdata->vif.bss_conf.dtim_period = bss->dtim_period;
 
+		bss_info_changed |= BSS_CHANGED_BEACON_INT;
 		bss_info_changed |= ieee80211_handle_bss_capability(sdata,
 			bss->cbss.capability, bss->has_erp_value, bss->erp_value);
 
@@ -632,20 +976,17 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 	 * changed or not.
 	 */
 	bss_info_changed |= BSS_CHANGED_BASIC_RATES;
+
+	/* And the BSSID changed - we're associated now */
+	bss_info_changed |= BSS_CHANGED_BSSID;
+
 	ieee80211_bss_info_change_notify(sdata, bss_info_changed);
 
-	if (local->powersave) {
-		if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS) &&
-		    local->hw.conf.dynamic_ps_timeout > 0) {
-			mod_timer(&local->dynamic_ps_timer, jiffies +
-				  msecs_to_jiffies(
-					local->hw.conf.dynamic_ps_timeout));
-		} else {
-			if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
-				ieee80211_send_nullfunc(local, sdata, 1);
-			conf->flags |= IEEE80211_CONF_PS;
-			ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
-		}
+	/* will be same as sdata */
+	if (local->ps_sdata) {
+		mutex_lock(&local->iflist_mtx);
+		ieee80211_recalc_ps(local, -1);
+		mutex_unlock(&local->iflist_mtx);
 	}
 
 	netif_tx_start_all_queues(sdata->dev);
@@ -664,7 +1005,8 @@ static void ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata)
 		printk(KERN_DEBUG "%s: direct probe to AP %pM timed out\n",
 		       sdata->dev->name, ifmgd->bssid);
 		ifmgd->state = IEEE80211_STA_MLME_DISABLED;
-		ieee80211_sta_send_apinfo(sdata);
+		ieee80211_recalc_idle(local);
+		cfg80211_send_auth_timeout(sdata->dev, ifmgd->bssid);
 
 		/*
 		 * Most likely AP is not in the range so remove the
@@ -689,8 +1031,6 @@ static void ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata)
 
 	ifmgd->state = IEEE80211_STA_MLME_DIRECT_PROBE;
 
-	set_bit(IEEE80211_STA_REQ_DIRECT_PROBE, &ifmgd->request);
-
 	/* Direct probe is sent to broadcast address as some APs
 	 * will not answer to direct packet in unassociated state.
 	 */
@@ -714,7 +1054,8 @@ static void ieee80211_authenticate(struct ieee80211_sub_if_data *sdata)
 		       " timed out\n",
 		       sdata->dev->name, ifmgd->bssid);
 		ifmgd->state = IEEE80211_STA_MLME_DISABLED;
-		ieee80211_sta_send_apinfo(sdata);
+		ieee80211_recalc_idle(local);
+		cfg80211_send_auth_timeout(sdata->dev, ifmgd->bssid);
 		ieee80211_rx_bss_remove(sdata, ifmgd->bssid,
 				sdata->local->hw.conf.channel->center_freq,
 				ifmgd->ssid, ifmgd->ssid_len);
@@ -761,14 +1102,6 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 	struct sta_info *sta;
 	u32 changed = 0, config_changed = 0;
 
-	rcu_read_lock();
-
-	sta = sta_info_get(local, ifmgd->bssid);
-	if (!sta) {
-		rcu_read_unlock();
-		return;
-	}
-
 	if (deauth) {
 		ifmgd->direct_probe_tries = 0;
 		ifmgd->auth_tries = 0;
@@ -779,7 +1112,11 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 	netif_tx_stop_all_queues(sdata->dev);
 	netif_carrier_off(sdata->dev);
 
-	ieee80211_sta_tear_down_BA_sessions(sta);
+	rcu_read_lock();
+	sta = sta_info_get(local, ifmgd->bssid);
+	if (sta)
+		ieee80211_sta_tear_down_BA_sessions(sta);
+	rcu_read_unlock();
 
 	bss = ieee80211_rx_bss_get(local, ifmgd->bssid,
 				   conf->channel->center_freq,
@@ -815,11 +1152,16 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 				ifmgd->ssid, ifmgd->ssid_len);
 	}
 
-	rcu_read_unlock();
+	ieee80211_set_wmm_default(sdata);
+
+	ieee80211_recalc_idle(local);
 
 	/* channel(_type) changes are handled by ieee80211_hw_config */
 	local->oper_channel_type = NL80211_CHAN_NO_HT;
 
+	/* on the next assoc, re-program HT parameters */
+	sdata->ht_opmode_valid = false;
+
 	local->power_constr_level = 0;
 
 	del_timer_sync(&local->dynamic_ps_timer);
@@ -831,6 +1173,9 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 	}
 
 	ieee80211_hw_config(local, config_changed);
+
+	/* And the BSSID changed -- not very interesting here */
+	changed |= BSS_CHANGED_BSSID;
 	ieee80211_bss_info_change_notify(sdata, changed);
 
 	rcu_read_lock();
@@ -897,7 +1242,8 @@ static void ieee80211_associate(struct ieee80211_sub_if_data *sdata)
 		       " timed out\n",
 		       sdata->dev->name, ifmgd->bssid);
 		ifmgd->state = IEEE80211_STA_MLME_DISABLED;
-		ieee80211_sta_send_apinfo(sdata);
+		ieee80211_recalc_idle(local);
+		cfg80211_send_assoc_timeout(sdata->dev, ifmgd->bssid);
 		ieee80211_rx_bss_remove(sdata, ifmgd->bssid,
 				sdata->local->hw.conf.channel->center_freq,
 				ifmgd->ssid, ifmgd->ssid_len);
@@ -917,6 +1263,7 @@ static void ieee80211_associate(struct ieee80211_sub_if_data *sdata)
 		printk(KERN_DEBUG "%s: mismatch in privacy configuration and "
 		       "mixed-cell disabled - abort association\n", sdata->dev->name);
 		ifmgd->state = IEEE80211_STA_MLME_DISABLED;
+		ieee80211_recalc_idle(local);
 		return;
 	}
 
@@ -948,6 +1295,17 @@ void ieee80211_beacon_loss_work(struct work_struct *work)
 			     u.mgd.beacon_loss_work);
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
+	/*
+	 * The driver has already reported this event and we have
+	 * already sent a probe request. Maybe the AP died and the
+	 * driver keeps reporting until we disassociate... We have
+	 * to ignore that because otherwise we would continually
+	 * reset the timer and never check whether we received a
+	 * probe response!
+	 */
+	if (ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL)
+		return;
+
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
 	if (net_ratelimit()) {
 		printk(KERN_DEBUG "%s: driver reports beacon loss from AP %pM "
@@ -957,10 +1315,15 @@ void ieee80211_beacon_loss_work(struct work_struct *work)
 #endif
 
 	ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL;
+
+	mutex_lock(&sdata->local->iflist_mtx);
+	ieee80211_recalc_ps(sdata->local, -1);
+	mutex_unlock(&sdata->local->iflist_mtx);
+
 	ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid,
 				 ifmgd->ssid_len, NULL, 0);
 
-	mod_timer(&ifmgd->timer, jiffies + IEEE80211_MONITORING_INTERVAL);
+	mod_timer(&ifmgd->timer, jiffies + IEEE80211_PROBE_WAIT);
 }
 
 void ieee80211_beacon_loss(struct ieee80211_vif *vif)
@@ -977,6 +1340,7 @@ static void ieee80211_associated(struct ieee80211_sub_if_data *sdata)
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_local *local = sdata->local;
 	struct sta_info *sta;
+	unsigned long last_rx;
 	bool disassoc = false;
 
 	/* TODO: start monitoring current AP signal quality and number of
@@ -993,17 +1357,21 @@ static void ieee80211_associated(struct ieee80211_sub_if_data *sdata)
 		printk(KERN_DEBUG "%s: No STA entry for own AP %pM\n",
 		       sdata->dev->name, ifmgd->bssid);
 		disassoc = true;
-		goto unlock;
+		rcu_read_unlock();
+		goto out;
 	}
 
+	last_rx = sta->last_rx;
+	rcu_read_unlock();
+
 	if ((ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL) &&
-	    time_after(jiffies, sta->last_rx + IEEE80211_MONITORING_INTERVAL)) {
+	    time_after(jiffies, last_rx + IEEE80211_PROBE_WAIT)) {
 		printk(KERN_DEBUG "%s: no probe response from AP %pM "
 		       "- disassociating\n",
 		       sdata->dev->name, ifmgd->bssid);
 		disassoc = true;
 		ifmgd->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
-		goto unlock;
+		goto out;
 	}
 
 	/*
@@ -1022,27 +1390,31 @@ static void ieee80211_associated(struct ieee80211_sub_if_data *sdata)
 		}
 #endif
 		ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL;
+		mutex_lock(&local->iflist_mtx);
+		ieee80211_recalc_ps(local, -1);
+		mutex_unlock(&local->iflist_mtx);
 		ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid,
 					 ifmgd->ssid_len, NULL, 0);
-		goto unlock;
-
+		mod_timer(&ifmgd->timer, jiffies + IEEE80211_PROBE_WAIT);
+		goto out;
 	}
 
-	if (time_after(jiffies, sta->last_rx + IEEE80211_PROBE_IDLE_TIME)) {
+	if (time_after(jiffies, last_rx + IEEE80211_PROBE_IDLE_TIME)) {
 		ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL;
+		mutex_lock(&local->iflist_mtx);
+		ieee80211_recalc_ps(local, -1);
+		mutex_unlock(&local->iflist_mtx);
 		ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid,
 					 ifmgd->ssid_len, NULL, 0);
 	}
 
- unlock:
-	rcu_read_unlock();
-
-	if (disassoc)
+ out:
+	if (!disassoc)
+		mod_timer(&ifmgd->timer,
+			  jiffies + IEEE80211_MONITORING_INTERVAL);
+	else
 		ieee80211_set_disassoc(sdata, true, true,
 					WLAN_REASON_PREV_AUTH_NOT_VALID);
-	else
-		mod_timer(&ifmgd->timer, jiffies +
-				      IEEE80211_MONITORING_INTERVAL);
 }
 
 
@@ -1055,6 +1427,7 @@ static void ieee80211_auth_completed(struct ieee80211_sub_if_data *sdata)
 	if (ifmgd->flags & IEEE80211_STA_EXT_SME) {
 		/* Wait for SME to request association */
 		ifmgd->state = IEEE80211_STA_MLME_DISABLED;
+		ieee80211_recalc_idle(sdata->local);
 	} else
 		ieee80211_associate(sdata);
 }
@@ -1187,7 +1560,7 @@ static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
 
 	ieee80211_set_disassoc(sdata, true, false, 0);
 	ifmgd->flags &= ~IEEE80211_STA_AUTHENTICATED;
-	cfg80211_send_rx_deauth(sdata->dev, (u8 *) mgmt, len);
+	cfg80211_send_deauth(sdata->dev, (u8 *) mgmt, len);
 }
 
 
@@ -1218,7 +1591,7 @@ static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
 	}
 
 	ieee80211_set_disassoc(sdata, false, false, reason_code);
-	cfg80211_send_rx_disassoc(sdata->dev, (u8 *) mgmt, len);
+	cfg80211_send_disassoc(sdata->dev, (u8 *) mgmt, len);
 }
 
 
@@ -1287,6 +1660,12 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 		 * association next time. This works around some broken APs
 		 * which do not correctly reject reassociation requests. */
 		ifmgd->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
+		cfg80211_send_rx_assoc(sdata->dev, (u8 *) mgmt, len);
+		if (ifmgd->flags & IEEE80211_STA_EXT_SME) {
+			/* Wait for SME to decide what to do next */
+			ifmgd->state = IEEE80211_STA_MLME_DISABLED;
+			ieee80211_recalc_idle(local);
+		}
 		return;
 	}
 
@@ -1340,8 +1719,9 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 	 *	  to between the sta_info_alloc() and sta_info_insert() above.
 	 */
 
-	set_sta_flags(sta, WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_ASSOC_AP |
-			   WLAN_STA_AUTHORIZED);
+	set_sta_flags(sta, WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_ASSOC_AP);
+	if (!(ifmgd->flags & IEEE80211_STA_CONTROL_PORT))
+		set_sta_flags(sta, WLAN_STA_AUTHORIZED);
 
 	rates = 0;
 	basic_rates = 0;
@@ -1421,6 +1801,8 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 	if (elems.wmm_param)
 		ieee80211_sta_wmm_params(local, ifmgd, elems.wmm_param,
 					 elems.wmm_param_len);
+	else
+		ieee80211_set_wmm_default(sdata);
 
 	if (elems.ht_info_elem && elems.wmm_param &&
 	    (ifmgd->flags & IEEE80211_STA_WMM_ENABLED) &&
@@ -1476,7 +1858,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 	    (memcmp(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN) == 0)) {
 		struct ieee80211_channel_sw_ie *sw_elem =
 			(struct ieee80211_channel_sw_ie *)elems->ch_switch_elem;
-		ieee80211_process_chanswitch(sdata, sw_elem, bss);
+		ieee80211_sta_process_chanswitch(sdata, sw_elem, bss);
 	}
 
 	ieee80211_rx_bss_put(local, bss);
@@ -1507,57 +1889,98 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
 	ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, false);
 
 	/* direct probe may be part of the association flow */
-	if (test_and_clear_bit(IEEE80211_STA_REQ_DIRECT_PROBE,
-			       &ifmgd->request)) {
+	if (ifmgd->state == IEEE80211_STA_MLME_DIRECT_PROBE) {
 		printk(KERN_DEBUG "%s direct probe responded\n",
 		       sdata->dev->name);
 		ieee80211_authenticate(sdata);
 	}
 
-	if (ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL)
+	if (ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL) {
 		ifmgd->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
+		mutex_lock(&sdata->local->iflist_mtx);
+		ieee80211_recalc_ps(sdata->local, -1);
+		mutex_unlock(&sdata->local->iflist_mtx);
+	}
 }
 
+/*
+ * This is the canonical list of information elements we care about,
+ * the filter code also gives us all changes to the Microsoft OUI
+ * (00:50:F2) vendor IE which is used for WMM which we need to track.
+ *
+ * We implement beacon filtering in software since that means we can
+ * avoid processing the frame here and in cfg80211, and userspace
+ * will not be able to tell whether the hardware supports it or not.
+ *
+ * XXX: This list needs to be dynamic -- userspace needs to be able to
+ *	add items it requires. It also needs to be able to tell us to
+ *	look out for other vendor IEs.
+ */
+static const u64 care_about_ies =
+	(1ULL << WLAN_EID_COUNTRY) |
+	(1ULL << WLAN_EID_ERP_INFO) |
+	(1ULL << WLAN_EID_CHANNEL_SWITCH) |
+	(1ULL << WLAN_EID_PWR_CONSTRAINT) |
+	(1ULL << WLAN_EID_HT_CAPABILITY) |
+	(1ULL << WLAN_EID_HT_INFORMATION);
+
 static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 				     struct ieee80211_mgmt *mgmt,
 				     size_t len,
 				     struct ieee80211_rx_status *rx_status)
 {
-	struct ieee80211_if_managed *ifmgd;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	size_t baselen;
 	struct ieee802_11_elems elems;
 	struct ieee80211_local *local = sdata->local;
 	u32 changed = 0;
-	bool erp_valid, directed_tim;
+	bool erp_valid, directed_tim = false;
 	u8 erp_value = 0;
+	u32 ncrc;
 
 	/* Process beacon from the current BSS */
 	baselen = (u8 *) mgmt->u.beacon.variable - (u8 *) mgmt;
 	if (baselen > len)
 		return;
 
-	ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems);
-
-	ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, true);
-
-	if (sdata->vif.type != NL80211_IFTYPE_STATION)
+	if (rx_status->freq != local->hw.conf.channel->center_freq)
 		return;
 
-	ifmgd = &sdata->u.mgd;
-
 	if (!(ifmgd->flags & IEEE80211_STA_ASSOCIATED) ||
 	    memcmp(ifmgd->bssid, mgmt->bssid, ETH_ALEN) != 0)
 		return;
 
-	if (rx_status->freq != local->hw.conf.channel->center_freq)
-		return;
+	if (ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL) {
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+		if (net_ratelimit()) {
+			printk(KERN_DEBUG "%s: cancelling probereq poll due "
+			       "to a received beacon\n", sdata->dev->name);
+		}
+#endif
+		ifmgd->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
+		mutex_lock(&local->iflist_mtx);
+		ieee80211_recalc_ps(local, -1);
+		mutex_unlock(&local->iflist_mtx);
+	}
 
-	ieee80211_sta_wmm_params(local, ifmgd, elems.wmm_param,
-				 elems.wmm_param_len);
+	ncrc = crc32_be(0, (void *)&mgmt->u.beacon.beacon_int, 4);
+	ncrc = ieee802_11_parse_elems_crc(mgmt->u.beacon.variable,
+					  len - baselen, &elems,
+					  care_about_ies, ncrc);
 
-	if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) {
-		directed_tim = ieee80211_check_tim(&elems, ifmgd->aid);
+	if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
+		directed_tim = ieee80211_check_tim(elems.tim, elems.tim_len,
+						   ifmgd->aid);
 
+	if (ncrc != ifmgd->beacon_crc) {
+		ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems,
+				      true);
+
+		ieee80211_sta_wmm_params(local, ifmgd, elems.wmm_param,
+					 elems.wmm_param_len);
+	}
+
+	if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) {
 		if (directed_tim) {
 			if (local->hw.conf.dynamic_ps_timeout > 0) {
 				local->hw.conf.flags &= ~IEEE80211_CONF_PS;
@@ -1580,6 +2003,10 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 		}
 	}
 
+	if (ncrc == ifmgd->beacon_crc)
+		return;
+	ifmgd->beacon_crc = ncrc;
+
 	if (elems.erp_info && elems.erp_info_len >= 1) {
 		erp_valid = true;
 		erp_value = elems.erp_info[0];
@@ -1714,6 +2141,11 @@ static void ieee80211_sta_timer(unsigned long data)
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_local *local = sdata->local;
 
+	if (local->quiescing) {
+		set_bit(TMR_RUNNING_TIMER, &ifmgd->timers_running);
+		return;
+	}
+
 	set_bit(IEEE80211_STA_REQ_RUN, &ifmgd->request);
 	queue_work(local->hw.workqueue, &ifmgd->work);
 }
@@ -1723,10 +2155,8 @@ static void ieee80211_sta_reset_auth(struct ieee80211_sub_if_data *sdata)
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_local *local = sdata->local;
 
-	if (local->ops->reset_tsf) {
-		/* Reset own TSF to allow time synchronization work. */
-		local->ops->reset_tsf(local_to_hw(local));
-	}
+	/* Reset own TSF to allow time synchronization work. */
+	drv_reset_tsf(local);
 
 	ifmgd->wmm_last_param_set = -1; /* allow any WMM update */
 
@@ -1787,7 +2217,10 @@ static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata)
 				       capa_mask, capa_val);
 
 	if (bss) {
-		ieee80211_set_freq(sdata, bss->cbss.channel->center_freq);
+		local->oper_channel = bss->cbss.channel;
+		local->oper_channel_type = NL80211_CHAN_NO_HT;
+		ieee80211_hw_config(local, 0);
+
 		if (!(ifmgd->flags & IEEE80211_STA_SSID_SET))
 			ieee80211_sta_set_ssid(sdata, bss->ssid,
 					       bss->ssid_len);
@@ -1814,25 +2247,18 @@ static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata)
 		return 0;
 	} else {
 		if (ifmgd->assoc_scan_tries < IEEE80211_ASSOC_SCANS_MAX_TRIES) {
+
 			ifmgd->assoc_scan_tries++;
-			/* XXX maybe racy? */
-			if (local->scan_req)
-				return -1;
-			memcpy(local->int_scan_req.ssids[0].ssid,
-			       ifmgd->ssid, IEEE80211_MAX_SSID_LEN);
-			if (ifmgd->flags & IEEE80211_STA_AUTO_SSID_SEL)
-				local->int_scan_req.ssids[0].ssid_len = 0;
-			else
-				local->int_scan_req.ssids[0].ssid_len = ifmgd->ssid_len;
 
-			if (ieee80211_start_scan(sdata, &local->int_scan_req))
-				ieee80211_scan_failed(local);
+			ieee80211_request_internal_scan(sdata, ifmgd->ssid,
+							ssid_len);
 
 			ifmgd->state = IEEE80211_STA_MLME_AUTHENTICATE;
 			set_bit(IEEE80211_STA_REQ_AUTH, &ifmgd->request);
 		} else {
 			ifmgd->assoc_scan_tries = 0;
 			ifmgd->state = IEEE80211_STA_MLME_DISABLED;
+			ieee80211_recalc_idle(local);
 		}
 	}
 	return -1;
@@ -1855,6 +2281,17 @@ static void ieee80211_sta_work(struct work_struct *work)
 
 	if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
 		return;
+
+	/*
+	 * Nothing should have been stuffed into the workqueue during
+	 * the suspend->resume cycle. If this WARN is seen then there
+	 * is a bug with either the driver suspend or something in
+	 * mac80211 stuffing into the workqueue which we haven't yet
+	 * cleared during mac80211's suspend cycle.
+	 */
+	if (WARN_ON(local->suspended))
+		return;
+
 	ifmgd = &sdata->u.mgd;
 
 	while ((skb = skb_dequeue(&ifmgd->skb_queue)))
@@ -1864,14 +2301,8 @@ static void ieee80211_sta_work(struct work_struct *work)
 	    ifmgd->state != IEEE80211_STA_MLME_AUTHENTICATE &&
 	    ifmgd->state != IEEE80211_STA_MLME_ASSOCIATE &&
 	    test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifmgd->request)) {
-		/*
-		 * The call to ieee80211_start_scan can fail but ieee80211_request_scan
-		 * (which queued ieee80211_sta_work) did not return an error. Thus, call
-		 * ieee80211_scan_failed here if ieee80211_start_scan fails in order to
-		 * notify the scan requester.
-		 */
-		if (ieee80211_start_scan(sdata, local->scan_req))
-			ieee80211_scan_failed(local);
+		queue_delayed_work(local->hw.workqueue, &local->scan_work,
+				   round_jiffies_relative(0));
 		return;
 	}
 
@@ -1882,6 +2313,8 @@ static void ieee80211_sta_work(struct work_struct *work)
 	} else if (!test_and_clear_bit(IEEE80211_STA_REQ_RUN, &ifmgd->request))
 		return;
 
+	ieee80211_recalc_idle(local);
+
 	switch (ifmgd->state) {
 	case IEEE80211_STA_MLME_DISABLED:
 		break;
@@ -1926,10 +2359,43 @@ static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata)
 	}
 }
 
+#ifdef CONFIG_PM
+void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+
+	/*
+	 * we need to use atomic bitops for the running bits
+	 * only because both timers might fire at the same
+	 * time -- the code here is properly synchronised.
+	 */
+
+	cancel_work_sync(&ifmgd->work);
+	cancel_work_sync(&ifmgd->beacon_loss_work);
+	if (del_timer_sync(&ifmgd->timer))
+		set_bit(TMR_RUNNING_TIMER, &ifmgd->timers_running);
+
+	cancel_work_sync(&ifmgd->chswitch_work);
+	if (del_timer_sync(&ifmgd->chswitch_timer))
+		set_bit(TMR_RUNNING_CHANSW, &ifmgd->timers_running);
+}
+
+void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+
+	if (test_and_clear_bit(TMR_RUNNING_TIMER, &ifmgd->timers_running))
+		add_timer(&ifmgd->timer);
+	if (test_and_clear_bit(TMR_RUNNING_CHANSW, &ifmgd->timers_running))
+		add_timer(&ifmgd->chswitch_timer);
+}
+#endif
+
 /* interface setup */
 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_managed *ifmgd;
+	u32 hw_flags;
 
 	ifmgd = &sdata->u.mgd;
 	INIT_WORK(&ifmgd->work, ieee80211_sta_work);
@@ -1949,6 +2415,13 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
 		IEEE80211_STA_AUTO_CHANNEL_SEL;
 	if (sdata->local->hw.queues >= 4)
 		ifmgd->flags |= IEEE80211_STA_WMM_ENABLED;
+
+	hw_flags = sdata->local->hw.flags;
+
+	if (hw_flags & IEEE80211_HW_SUPPORTS_PS) {
+		ifmgd->powersave = CONFIG_MAC80211_DEFAULT_PS_VALUE;
+		sdata->local->hw.conf.dynamic_ps_timeout = 500;
+	}
 }
 
 /* configuration hooks */
@@ -1969,6 +2442,14 @@ void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata)
 			ieee80211_set_disassoc(sdata, true, true,
 					       WLAN_REASON_DEAUTH_LEAVING);
 
+		if (ifmgd->ssid_len == 0) {
+			/*
+			 * Only allow association to be started if a valid SSID
+			 * is configured.
+			 */
+			return;
+		}
+
 		if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) ||
 		    ifmgd->state != IEEE80211_STA_MLME_ASSOCIATE)
 			set_bit(IEEE80211_STA_REQ_AUTH, &ifmgd->request);
@@ -2000,6 +2481,10 @@ int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size
 	ifmgd = &sdata->u.mgd;
 
 	if (ifmgd->ssid_len != len || memcmp(ifmgd->ssid, ssid, len) != 0) {
+		if (ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED)
+			ieee80211_set_disassoc(sdata, true, true,
+					       WLAN_REASON_DEAUTH_LEAVING);
+
 		/*
 		 * Do not use reassociation if SSID is changed (different ESS).
 		 */
@@ -2024,6 +2509,11 @@ int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid)
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
+	if (compare_ether_addr(bssid, ifmgd->bssid) != 0 &&
+	    ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED)
+		ieee80211_set_disassoc(sdata, true, true,
+				       WLAN_REASON_DEAUTH_LEAVING);
+
 	if (is_valid_ether_addr(bssid)) {
 		memcpy(ifmgd->bssid, bssid, ETH_ALEN);
 		ifmgd->flags |= IEEE80211_STA_BSSID_SET;
@@ -2032,13 +2522,6 @@ int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid)
 		ifmgd->flags &= ~IEEE80211_STA_BSSID_SET;
 	}
 
-	if (netif_running(sdata->dev)) {
-		if (ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID)) {
-			printk(KERN_DEBUG "%s: Failed to config new BSSID to "
-			       "the low-level driver\n", sdata->dev->name);
-		}
-	}
-
 	return ieee80211_sta_commit(sdata);
 }
 
@@ -2047,6 +2530,13 @@ int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata,
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
+	if (len == 0 && ifmgd->extra_ie_len == 0)
+		return -EALREADY;
+
+	if (len == ifmgd->extra_ie_len && ifmgd->extra_ie &&
+	    memcmp(ifmgd->extra_ie, ie, len) == 0)
+		return -EALREADY;
+
 	kfree(ifmgd->extra_ie);
 	if (len == 0) {
 		ifmgd->extra_ie = NULL;
@@ -2068,9 +2558,6 @@ int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason
 	printk(KERN_DEBUG "%s: deauthenticating by local choice (reason=%d)\n",
 	       sdata->dev->name, reason);
 
-	if (sdata->vif.type != NL80211_IFTYPE_STATION)
-		return -EINVAL;
-
 	ieee80211_set_disassoc(sdata, true, true, reason);
 	return 0;
 }
@@ -2082,9 +2569,6 @@ int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason)
 	printk(KERN_DEBUG "%s: disassociating by local choice (reason=%d)\n",
 	       sdata->dev->name, reason);
 
-	if (sdata->vif.type != NL80211_IFTYPE_STATION)
-		return -EINVAL;
-
 	if (!(ifmgd->flags & IEEE80211_STA_ASSOCIATED))
 		return -ENOLINK;
 
@@ -2104,75 +2588,17 @@ void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local)
 	rcu_read_unlock();
 }
 
-void ieee80211_dynamic_ps_disable_work(struct work_struct *work)
-{
-	struct ieee80211_local *local =
-		container_of(work, struct ieee80211_local,
-			     dynamic_ps_disable_work);
-
-	if (local->hw.conf.flags & IEEE80211_CONF_PS) {
-		local->hw.conf.flags &= ~IEEE80211_CONF_PS;
-		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
-	}
-
-	ieee80211_wake_queues_by_reason(&local->hw,
-					IEEE80211_QUEUE_STOP_REASON_PS);
-}
-
-void ieee80211_dynamic_ps_enable_work(struct work_struct *work)
+int ieee80211_max_network_latency(struct notifier_block *nb,
+				  unsigned long data, void *dummy)
 {
+	s32 latency_usec = (s32) data;
 	struct ieee80211_local *local =
-		container_of(work, struct ieee80211_local,
-			     dynamic_ps_enable_work);
-	/* XXX: using scan_sdata is completely broken! */
-	struct ieee80211_sub_if_data *sdata = local->scan_sdata;
-
-	if (local->hw.conf.flags & IEEE80211_CONF_PS)
-		return;
-
-	if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK && sdata)
-		ieee80211_send_nullfunc(local, sdata, 1);
+		container_of(nb, struct ieee80211_local,
+			     network_latency_notifier);
 
-	local->hw.conf.flags |= IEEE80211_CONF_PS;
-	ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
-}
-
-void ieee80211_dynamic_ps_timer(unsigned long data)
-{
-	struct ieee80211_local *local = (void *) data;
-
-	queue_work(local->hw.workqueue, &local->dynamic_ps_enable_work);
-}
-
-void ieee80211_send_nullfunc(struct ieee80211_local *local,
-			     struct ieee80211_sub_if_data *sdata,
-			     int powersave)
-{
-	struct sk_buff *skb;
-	struct ieee80211_hdr *nullfunc;
-	__le16 fc;
+	mutex_lock(&local->iflist_mtx);
+	ieee80211_recalc_ps(local, latency_usec);
+	mutex_unlock(&local->iflist_mtx);
 
-	if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
-		return;
-
-	skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24);
-	if (!skb) {
-		printk(KERN_DEBUG "%s: failed to allocate buffer for nullfunc "
-		       "frame\n", sdata->dev->name);
-		return;
-	}
-	skb_reserve(skb, local->hw.extra_tx_headroom);
-
-	nullfunc = (struct ieee80211_hdr *) skb_put(skb, 24);
-	memset(nullfunc, 0, 24);
-	fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC |
-			 IEEE80211_FCTL_TODS);
-	if (powersave)
-		fc |= cpu_to_le16(IEEE80211_FCTL_PM);
-	nullfunc->frame_control = fc;
-	memcpy(nullfunc->addr1, sdata->u.mgd.bssid, ETH_ALEN);
-	memcpy(nullfunc->addr2, sdata->dev->dev_addr, ETH_ALEN);
-	memcpy(nullfunc->addr3, sdata->u.mgd.bssid, ETH_ALEN);
-
-	ieee80211_tx_skb(sdata, skb, 0);
+	return 0;
 }
diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
index 81985d27cbda..7a549f9deb96 100644
--- a/net/mac80211/pm.c
+++ b/net/mac80211/pm.c
@@ -2,6 +2,8 @@
 #include <net/rtnetlink.h>
 
 #include "ieee80211_i.h"
+#include "mesh.h"
+#include "driver-ops.h"
 #include "led.h"
 
 int __ieee80211_suspend(struct ieee80211_hw *hw)
@@ -12,11 +14,30 @@ int __ieee80211_suspend(struct ieee80211_hw *hw)
 	struct sta_info *sta;
 	unsigned long flags;
 
+	ieee80211_scan_cancel(local);
+
 	ieee80211_stop_queues_by_reason(hw,
 			IEEE80211_QUEUE_STOP_REASON_SUSPEND);
 
+	/* flush out all packets */
+	synchronize_net();
+
+	local->quiescing = true;
+	/* make quiescing visible to timers everywhere */
+	mb();
+
 	flush_workqueue(local->hw.workqueue);
 
+	/* Don't try to run timers while suspended. */
+	del_timer_sync(&local->sta_cleanup);
+
+	 /*
+	 * Note that this particular timer doesn't need to be
+	 * restarted at resume.
+	 */
+	cancel_work_sync(&local->dynamic_ps_enable_work);
+	del_timer_sync(&local->dynamic_ps_timer);
+
 	/* disable keys */
 	list_for_each_entry(sdata, &local->interfaces, list)
 		ieee80211_disable_keys(sdata);
@@ -34,157 +55,70 @@ int __ieee80211_suspend(struct ieee80211_hw *hw)
 
 	rcu_read_unlock();
 
-	/* remove STAs */
-	if (local->ops->sta_notify) {
-		spin_lock_irqsave(&local->sta_lock, flags);
-		list_for_each_entry(sta, &local->sta_list, list) {
-			if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
-				sdata = container_of(sdata->bss,
-					     struct ieee80211_sub_if_data,
-					     u.ap);
-
-			local->ops->sta_notify(hw, &sdata->vif,
-				STA_NOTIFY_REMOVE, &sta->sta);
-		}
-		spin_unlock_irqrestore(&local->sta_lock, flags);
-	}
-
-	/* remove all interfaces */
-	list_for_each_entry(sdata, &local->interfaces, list) {
-		if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
-		    sdata->vif.type != NL80211_IFTYPE_MONITOR &&
-		    netif_running(sdata->dev)) {
-			conf.vif = &sdata->vif;
-			conf.type = sdata->vif.type;
-			conf.mac_addr = sdata->dev->dev_addr;
-			local->ops->remove_interface(hw, &conf);
-		}
-	}
-
 	/* flush again, in case driver queued work */
 	flush_workqueue(local->hw.workqueue);
 
-	/* stop hardware */
+	/* stop hardware - this must stop RX */
 	if (local->open_count) {
 		ieee80211_led_radio(local, false);
-		local->ops->stop(hw);
-	}
-	return 0;
-}
-
-int __ieee80211_resume(struct ieee80211_hw *hw)
-{
-	struct ieee80211_local *local = hw_to_local(hw);
-	struct ieee80211_sub_if_data *sdata;
-	struct ieee80211_if_init_conf conf;
-	struct sta_info *sta;
-	unsigned long flags;
-	int res;
-
-	/* restart hardware */
-	if (local->open_count) {
-		res = local->ops->start(hw);
-
-		ieee80211_led_radio(local, hw->conf.radio_enabled);
+		drv_stop(local);
 	}
 
-	/* add interfaces */
-	list_for_each_entry(sdata, &local->interfaces, list) {
-		if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
-		    sdata->vif.type != NL80211_IFTYPE_MONITOR &&
-		    netif_running(sdata->dev)) {
-			conf.vif = &sdata->vif;
-			conf.type = sdata->vif.type;
-			conf.mac_addr = sdata->dev->dev_addr;
-			res = local->ops->add_interface(hw, &conf);
-		}
-	}
-
-	/* add STAs back */
-	if (local->ops->sta_notify) {
-		spin_lock_irqsave(&local->sta_lock, flags);
-		list_for_each_entry(sta, &local->sta_list, list) {
+	/* remove STAs */
+	spin_lock_irqsave(&local->sta_lock, flags);
+	list_for_each_entry(sta, &local->sta_list, list) {
+		if (local->ops->sta_notify) {
+			sdata = sta->sdata;
 			if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
 				sdata = container_of(sdata->bss,
 					     struct ieee80211_sub_if_data,
 					     u.ap);
 
-			local->ops->sta_notify(hw, &sdata->vif,
-				STA_NOTIFY_ADD, &sta->sta);
+			drv_sta_notify(local, &sdata->vif, STA_NOTIFY_REMOVE,
+				       &sta->sta);
 		}
-		spin_unlock_irqrestore(&local->sta_lock, flags);
-	}
-
-	/* Clear Suspend state so that ADDBA requests can be processed */
-
-	rcu_read_lock();
 
-	if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) {
-		list_for_each_entry_rcu(sta, &local->sta_list, list) {
-			clear_sta_flags(sta, WLAN_STA_SUSPEND);
-		}
+		mesh_plink_quiesce(sta);
 	}
+	spin_unlock_irqrestore(&local->sta_lock, flags);
 
-	rcu_read_unlock();
-
-	/* add back keys */
-	list_for_each_entry(sdata, &local->interfaces, list)
-		if (netif_running(sdata->dev))
-			ieee80211_enable_keys(sdata);
-
-	/* setup RTS threshold */
-	if (local->ops->set_rts_threshold)
-		local->ops->set_rts_threshold(hw, local->rts_threshold);
-
-	/* reconfigure hardware */
-	ieee80211_hw_config(local, ~0);
-
-	netif_addr_lock_bh(local->mdev);
-	ieee80211_configure_filter(local);
-	netif_addr_unlock_bh(local->mdev);
-
-	/* Finally also reconfigure all the BSS information */
+	/* remove all interfaces */
 	list_for_each_entry(sdata, &local->interfaces, list) {
-		u32 changed = ~0;
-		if (!netif_running(sdata->dev))
-			continue;
-		switch (sdata->vif.type) {
+		switch(sdata->vif.type) {
 		case NL80211_IFTYPE_STATION:
-			/* disable beacon change bits */
-			changed &= ~IEEE80211_IFCC_BEACON;
-			/* fall through */
+			ieee80211_sta_quiesce(sdata);
+			break;
 		case NL80211_IFTYPE_ADHOC:
-		case NL80211_IFTYPE_AP:
-		case NL80211_IFTYPE_MESH_POINT:
-			/*
-			 * Driver's config_interface can fail if rfkill is
-			 * enabled. Accommodate this return code.
-			 * FIXME: When mac80211 has knowledge of rfkill
-			 * state the code below can change back to:
-			 *   WARN(ieee80211_if_config(sdata, changed));
-			 *   ieee80211_bss_info_change_notify(sdata, ~0);
-			 */
-			if (ieee80211_if_config(sdata, changed))
-				printk(KERN_DEBUG "%s: failed to configure interface during resume\n",
-				       sdata->dev->name);
-			else
-				ieee80211_bss_info_change_notify(sdata, ~0);
+			ieee80211_ibss_quiesce(sdata);
 			break;
-		case NL80211_IFTYPE_WDS:
+		case NL80211_IFTYPE_MESH_POINT:
+			ieee80211_mesh_quiesce(sdata);
 			break;
 		case NL80211_IFTYPE_AP_VLAN:
 		case NL80211_IFTYPE_MONITOR:
-			/* ignore virtual */
-			break;
-		case NL80211_IFTYPE_UNSPECIFIED:
-		case __NL80211_IFTYPE_AFTER_LAST:
-			WARN_ON(1);
+			/* don't tell driver about this */
+			continue;
+		default:
 			break;
 		}
+
+		if (!netif_running(sdata->dev))
+			continue;
+
+		conf.vif = &sdata->vif;
+		conf.type = sdata->vif.type;
+		conf.mac_addr = sdata->dev->dev_addr;
+		drv_remove_interface(local, &conf);
 	}
 
-	ieee80211_wake_queues_by_reason(hw,
-			IEEE80211_QUEUE_STOP_REASON_SUSPEND);
+	local->suspended = true;
+	local->quiescing = false;
 
 	return 0;
 }
+
+/*
+ * __ieee80211_resume() is a static inline which just calls
+ * ieee80211_reconfig(), which is also needed for hardware
+ * hang/firmware failure/etc. recovery.
+ */
diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c
index d9233ec50610..b218b98fba7f 100644
--- a/net/mac80211/rc80211_minstrel.c
+++ b/net/mac80211/rc80211_minstrel.c
@@ -80,8 +80,7 @@ use_low_rate(struct sk_buff *skb)
 	fc = le16_to_cpu(hdr->frame_control);
 
 	return ((info->flags & IEEE80211_TX_CTL_NO_ACK) ||
-		(fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
-		is_multicast_ether_addr(hdr->addr1));
+		(fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA);
 }
 
 
@@ -216,7 +215,7 @@ minstrel_get_next_sample(struct minstrel_sta_info *mi)
 	unsigned int sample_ndx;
 	sample_ndx = SAMPLE_TBL(mi, mi->sample_idx, mi->sample_column);
 	mi->sample_idx++;
-	if (mi->sample_idx > (mi->n_rates - 2)) {
+	if ((int) mi->sample_idx > (mi->n_rates - 2)) {
 		mi->sample_idx = 0;
 		mi->sample_column++;
 		if (mi->sample_column >= SAMPLE_COLUMNS)
@@ -245,7 +244,10 @@ minstrel_get_rate(void *priv, struct ieee80211_sta *sta,
 
 	if (!sta || !mi || use_low_rate(skb)) {
 		ar[0].idx = rate_lowest_index(sband, sta);
-		ar[0].count = mp->max_retry;
+		if (info->flags & IEEE80211_TX_CTL_NO_ACK)
+			ar[0].count = 1;
+		else
+			ar[0].count = mp->max_retry;
 		return;
 	}
 
diff --git a/net/mac80211/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c
index 8bef9a1262ff..a0bef767ceb5 100644
--- a/net/mac80211/rc80211_pid_algo.c
+++ b/net/mac80211/rc80211_pid_algo.c
@@ -289,13 +289,15 @@ rate_control_pid_get_rate(void *priv, struct ieee80211_sta *sta,
 		info->control.rates[0].count =
 			txrc->hw->conf.short_frame_max_tx_count;
 
-	/* Send management frames and broadcast/multicast data using lowest
-	 * rate. */
+	/* Send management frames and NO_ACK data using lowest rate. */
 	fc = le16_to_cpu(hdr->frame_control);
 	if (!sta || !spinfo ||
 	    (fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
-	    is_multicast_ether_addr(hdr->addr1)) {
+	    info->flags & IEEE80211_TX_CTL_NO_ACK) {
 		info->control.rates[0].idx = rate_lowest_index(sband, sta);
+		if (info->flags & IEEE80211_TX_CTL_NO_ACK)
+			info->control.rates[0].count = 1;
+
 		return;
 	}
 
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 9776f73c51ad..de5bba7f910a 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -19,6 +19,7 @@
 #include <net/ieee80211_radiotap.h>
 
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "led.h"
 #include "mesh.h"
 #include "wep.h"
@@ -629,15 +630,6 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
 	 * possible.
 	 */
 
-	if (!ieee80211_has_protected(hdr->frame_control)) {
-		if (!ieee80211_is_mgmt(hdr->frame_control) ||
-		    rx->sta == NULL || !test_sta_flags(rx->sta, WLAN_STA_MFP))
-			return RX_CONTINUE;
-		mmie_keyidx = ieee80211_get_mmie_keyidx(rx->skb);
-		if (mmie_keyidx < 0)
-			return RX_CONTINUE;
-	}
-
 	/*
 	 * No point in finding a key and decrypting if the frame is neither
 	 * addressed to us nor a multicast frame.
@@ -648,8 +640,14 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
 	if (rx->sta)
 		stakey = rcu_dereference(rx->sta->key);
 
+	if (!ieee80211_has_protected(hdr->frame_control))
+		mmie_keyidx = ieee80211_get_mmie_keyidx(rx->skb);
+
 	if (!is_multicast_ether_addr(hdr->addr1) && stakey) {
 		rx->key = stakey;
+		/* Skip decryption if the frame is not protected. */
+		if (!ieee80211_has_protected(hdr->frame_control))
+			return RX_CONTINUE;
 	} else if (mmie_keyidx >= 0) {
 		/* Broadcast/multicast robust management frame / BIP */
 		if ((rx->status->flag & RX_FLAG_DECRYPTED) &&
@@ -660,6 +658,21 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
 		    mmie_keyidx >= NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
 			return RX_DROP_MONITOR; /* unexpected BIP keyidx */
 		rx->key = rcu_dereference(rx->sdata->keys[mmie_keyidx]);
+	} else if (!ieee80211_has_protected(hdr->frame_control)) {
+		/*
+		 * The frame was not protected, so skip decryption. However, we
+		 * need to set rx->key if there is a key that could have been
+		 * used so that the frame may be dropped if encryption would
+		 * have been expected.
+		 */
+		struct ieee80211_key *key = NULL;
+		if (ieee80211_is_mgmt(hdr->frame_control) &&
+		    is_multicast_ether_addr(hdr->addr1) &&
+		    (key = rcu_dereference(rx->sdata->default_mgmt_key)))
+			rx->key = key;
+		else if ((key = rcu_dereference(rx->sdata->default_key)))
+			rx->key = key;
+		return RX_CONTINUE;
 	} else {
 		/*
 		 * The device doesn't give us the IV so we won't be
@@ -773,9 +786,7 @@ static void ap_sta_ps_start(struct sta_info *sta)
 
 	atomic_inc(&sdata->bss->num_sta_ps);
 	set_and_clear_sta_flags(sta, WLAN_STA_PS, WLAN_STA_PSPOLL);
-	if (local->ops->sta_notify)
-		local->ops->sta_notify(local_to_hw(local), &sdata->vif,
-					STA_NOTIFY_SLEEP, &sta->sta);
+	drv_sta_notify(local, &sdata->vif, STA_NOTIFY_SLEEP, &sta->sta);
 #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
 	printk(KERN_DEBUG "%s: STA %pM aid %d enters power save mode\n",
 	       sdata->dev->name, sta->sta.addr, sta->sta.aid);
@@ -786,15 +797,12 @@ static int ap_sta_ps_end(struct sta_info *sta)
 {
 	struct ieee80211_sub_if_data *sdata = sta->sdata;
 	struct ieee80211_local *local = sdata->local;
-	struct sk_buff *skb;
-	int sent = 0;
+	int sent, buffered;
 
 	atomic_dec(&sdata->bss->num_sta_ps);
 
 	clear_sta_flags(sta, WLAN_STA_PS | WLAN_STA_PSPOLL);
-	if (local->ops->sta_notify)
-		local->ops->sta_notify(local_to_hw(local), &sdata->vif,
-					STA_NOTIFY_AWAKE, &sta->sta);
+	drv_sta_notify(local, &sdata->vif, STA_NOTIFY_AWAKE, &sta->sta);
 
 	if (!skb_queue_empty(&sta->ps_tx_buf))
 		sta_info_clear_tim_bit(sta);
@@ -805,22 +813,16 @@ static int ap_sta_ps_end(struct sta_info *sta)
 #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
 
 	/* Send all buffered frames to the station */
-	while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
-		sent++;
-		skb->requeue = 1;
-		dev_queue_xmit(skb);
-	}
-	while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
-		local->total_ps_buffered--;
-		sent++;
+	sent = ieee80211_add_pending_skbs(local, &sta->tx_filtered);
+	buffered = ieee80211_add_pending_skbs(local, &sta->ps_tx_buf);
+	sent += buffered;
+	local->total_ps_buffered -= buffered;
+
 #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
-		printk(KERN_DEBUG "%s: STA %pM aid %d send PS frame "
-		       "since STA not sleeping anymore\n", sdata->dev->name,
-		       sta->sta.addr, sta->sta.aid);
+	printk(KERN_DEBUG "%s: STA %pM aid %d sending %d filtered/%d PS frames "
+	       "since STA not sleeping anymore\n", sdata->dev->name,
+	       sta->sta.addr, sta->sta.aid, sent - buffered, buffered);
 #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
-		skb->requeue = 1;
-		dev_queue_xmit(skb);
-	}
 
 	return sent;
 }
@@ -1212,109 +1214,38 @@ ieee80211_drop_unencrypted(struct ieee80211_rx_data *rx, __le16 fc)
 	/* Drop unencrypted frames if key is set. */
 	if (unlikely(!ieee80211_has_protected(fc) &&
 		     !ieee80211_is_nullfunc(fc) &&
-		     (!ieee80211_is_mgmt(fc) ||
-		      (ieee80211_is_unicast_robust_mgmt_frame(rx->skb) &&
-		       rx->sta && test_sta_flags(rx->sta, WLAN_STA_MFP))) &&
-		     (rx->key || rx->sdata->drop_unencrypted)))
-		return -EACCES;
-	/* BIP does not use Protected field, so need to check MMIE */
-	if (unlikely(rx->sta && test_sta_flags(rx->sta, WLAN_STA_MFP) &&
-		     ieee80211_is_multicast_robust_mgmt_frame(rx->skb) &&
-		     ieee80211_get_mmie_keyidx(rx->skb) < 0 &&
+		     ieee80211_is_data(fc) &&
 		     (rx->key || rx->sdata->drop_unencrypted)))
 		return -EACCES;
+	if (rx->sta && test_sta_flags(rx->sta, WLAN_STA_MFP)) {
+		if (unlikely(ieee80211_is_unicast_robust_mgmt_frame(rx->skb) &&
+			     rx->key))
+			return -EACCES;
+		/* BIP does not use Protected field, so need to check MMIE */
+		if (unlikely(ieee80211_is_multicast_robust_mgmt_frame(rx->skb)
+			     && ieee80211_get_mmie_keyidx(rx->skb) < 0 &&
+			     rx->key))
+			return -EACCES;
+		/*
+		 * When using MFP, Action frames are not allowed prior to
+		 * having configured keys.
+		 */
+		if (unlikely(ieee80211_is_action(fc) && !rx->key &&
+			     ieee80211_is_robust_mgmt_frame(
+				     (struct ieee80211_hdr *) rx->skb->data)))
+			return -EACCES;
+	}
 
 	return 0;
 }
 
 static int
-ieee80211_data_to_8023(struct ieee80211_rx_data *rx)
+__ieee80211_data_to_8023(struct ieee80211_rx_data *rx)
 {
 	struct net_device *dev = rx->dev;
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
-	u16 hdrlen, ethertype;
-	u8 *payload;
-	u8 dst[ETH_ALEN];
-	u8 src[ETH_ALEN] __aligned(2);
-	struct sk_buff *skb = rx->skb;
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
-	if (unlikely(!ieee80211_is_data_present(hdr->frame_control)))
-		return -1;
-
-	hdrlen = ieee80211_hdrlen(hdr->frame_control);
-
-	/* convert IEEE 802.11 header + possible LLC headers into Ethernet
-	 * header
-	 * IEEE 802.11 address fields:
-	 * ToDS FromDS Addr1 Addr2 Addr3 Addr4
-	 *   0     0   DA    SA    BSSID n/a
-	 *   0     1   DA    BSSID SA    n/a
-	 *   1     0   BSSID SA    DA    n/a
-	 *   1     1   RA    TA    DA    SA
-	 */
-	memcpy(dst, ieee80211_get_DA(hdr), ETH_ALEN);
-	memcpy(src, ieee80211_get_SA(hdr), ETH_ALEN);
-
-	switch (hdr->frame_control &
-		cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) {
-	case cpu_to_le16(IEEE80211_FCTL_TODS):
-		if (unlikely(sdata->vif.type != NL80211_IFTYPE_AP &&
-			     sdata->vif.type != NL80211_IFTYPE_AP_VLAN))
-			return -1;
-		break;
-	case cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS):
-		if (unlikely(sdata->vif.type != NL80211_IFTYPE_WDS &&
-			     sdata->vif.type != NL80211_IFTYPE_MESH_POINT))
-			return -1;
-		if (ieee80211_vif_is_mesh(&sdata->vif)) {
-			struct ieee80211s_hdr *meshdr = (struct ieee80211s_hdr *)
-				(skb->data + hdrlen);
-			hdrlen += ieee80211_get_mesh_hdrlen(meshdr);
-			if (meshdr->flags & MESH_FLAGS_AE_A5_A6) {
-				memcpy(dst, meshdr->eaddr1, ETH_ALEN);
-				memcpy(src, meshdr->eaddr2, ETH_ALEN);
-			}
-		}
-		break;
-	case cpu_to_le16(IEEE80211_FCTL_FROMDS):
-		if (sdata->vif.type != NL80211_IFTYPE_STATION ||
-		    (is_multicast_ether_addr(dst) &&
-		     !compare_ether_addr(src, dev->dev_addr)))
-			return -1;
-		break;
-	case cpu_to_le16(0):
-		if (sdata->vif.type != NL80211_IFTYPE_ADHOC)
-			return -1;
-		break;
-	}
-
-	if (unlikely(skb->len - hdrlen < 8))
-		return -1;
-
-	payload = skb->data + hdrlen;
-	ethertype = (payload[6] << 8) | payload[7];
-
-	if (likely((compare_ether_addr(payload, rfc1042_header) == 0 &&
-		    ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
-		   compare_ether_addr(payload, bridge_tunnel_header) == 0)) {
-		/* remove RFC1042 or Bridge-Tunnel encapsulation and
-		 * replace EtherType */
-		skb_pull(skb, hdrlen + 6);
-		memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN);
-		memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN);
-	} else {
-		struct ethhdr *ehdr;
-		__be16 len;
-
-		skb_pull(skb, hdrlen);
-		len = htons(skb->len);
-		ehdr = (struct ethhdr *) skb_push(skb, sizeof(struct ethhdr));
-		memcpy(ehdr->h_dest, dst, ETH_ALEN);
-		memcpy(ehdr->h_source, src, ETH_ALEN);
-		ehdr->h_proto = len;
-	}
-	return 0;
+	return ieee80211_data_to_8023(rx->skb, dev->dev_addr, sdata->vif.type);
 }
 
 /*
@@ -1397,7 +1328,7 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx)
 		 * mac80211. That also explains the __skb_push()
 		 * below.
 		 */
-		align = (unsigned long)skb->data & 3;
+		align = ((unsigned long)(skb->data + sizeof(struct ethhdr))) & 3;
 		if (align) {
 			if (WARN_ON(skb_headroom(skb) < 3)) {
 				dev_kfree_skb(skb);
@@ -1453,7 +1384,7 @@ ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx)
 	if (!(rx->flags & IEEE80211_RX_AMSDU))
 		return RX_CONTINUE;
 
-	err = ieee80211_data_to_8023(rx);
+	err = __ieee80211_data_to_8023(rx);
 	if (unlikely(err))
 		return RX_DROP_UNUSABLE;
 
@@ -1639,7 +1570,7 @@ ieee80211_rx_h_data(struct ieee80211_rx_data *rx)
 	if (unlikely(!ieee80211_is_data_present(hdr->frame_control)))
 		return RX_DROP_MONITOR;
 
-	err = ieee80211_data_to_8023(rx);
+	err = __ieee80211_data_to_8023(rx);
 	if (unlikely(err))
 		return RX_DROP_UNUSABLE;
 
@@ -1827,6 +1758,9 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 				   sizeof(mgmt->u.action.u.chan_switch)))
 				return RX_DROP_MONITOR;
 
+			if (sdata->vif.type != NL80211_IFTYPE_STATION)
+				return RX_DROP_MONITOR;
+
 			if (memcmp(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN))
 				return RX_DROP_MONITOR;
 
@@ -1837,7 +1771,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 			if (!bss)
 				return RX_DROP_MONITOR;
 
-			ieee80211_process_chanswitch(sdata,
+			ieee80211_sta_process_chanswitch(sdata,
 				     &mgmt->u.action.u.chan_switch.sw_elem, bss);
 			ieee80211_rx_bss_put(local, bss);
 			break;
@@ -1932,7 +1866,7 @@ static void ieee80211_rx_michael_mic_report(struct net_device *dev,
 	    !ieee80211_is_auth(hdr->frame_control))
 		goto ignore;
 
-	mac80211_ev_michael_mic_failure(rx->sdata, keyidx, hdr);
+	mac80211_ev_michael_mic_failure(rx->sdata, keyidx, hdr, NULL);
  ignore:
 	dev_kfree_skb(rx->skb);
 	rx->skb = NULL;
@@ -2287,6 +2221,43 @@ static inline u16 seq_sub(u16 sq1, u16 sq2)
 }
 
 
+static void ieee80211_release_reorder_frame(struct ieee80211_hw *hw,
+					    struct tid_ampdu_rx *tid_agg_rx,
+					    int index)
+{
+	struct ieee80211_supported_band *sband;
+	struct ieee80211_rate *rate;
+	struct ieee80211_rx_status status;
+
+	if (!tid_agg_rx->reorder_buf[index])
+		goto no_frame;
+
+	/* release the reordered frames to stack */
+	memcpy(&status, tid_agg_rx->reorder_buf[index]->cb, sizeof(status));
+	sband = hw->wiphy->bands[status.band];
+	if (status.flag & RX_FLAG_HT)
+		rate = sband->bitrates; /* TODO: HT rates */
+	else
+		rate = &sband->bitrates[status.rate_idx];
+	__ieee80211_rx_handle_packet(hw, tid_agg_rx->reorder_buf[index],
+				     &status, rate);
+	tid_agg_rx->stored_mpdu_num--;
+	tid_agg_rx->reorder_buf[index] = NULL;
+
+no_frame:
+	tid_agg_rx->head_seq_num = seq_inc(tid_agg_rx->head_seq_num);
+}
+
+
+/*
+ * Timeout (in jiffies) for skb's that are waiting in the RX reorder buffer. If
+ * the skb was added to the buffer longer than this time ago, the earlier
+ * frames that have not yet been received are assumed to be lost and the skb
+ * can be released for processing. This may also release other skb's from the
+ * reorder buffer if there are no additional gaps between the frames.
+ */
+#define HT_RX_REORDER_BUF_TIMEOUT (HZ / 10)
+
 /*
  * As it function blongs to Rx path it must be called with
  * the proper rcu_read_lock protection for its flow.
@@ -2298,12 +2269,8 @@ static u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
 					   u16 mpdu_seq_num,
 					   int bar_req)
 {
-	struct ieee80211_local *local = hw_to_local(hw);
-	struct ieee80211_rx_status status;
 	u16 head_seq_num, buf_size;
 	int index;
-	struct ieee80211_supported_band *sband;
-	struct ieee80211_rate *rate;
 
 	buf_size = tid_agg_rx->buf_size;
 	head_seq_num = tid_agg_rx->head_seq_num;
@@ -2328,28 +2295,8 @@ static u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
 			index = seq_sub(tid_agg_rx->head_seq_num,
 				tid_agg_rx->ssn)
 				% tid_agg_rx->buf_size;
-
-			if (tid_agg_rx->reorder_buf[index]) {
-				/* release the reordered frames to stack */
-				memcpy(&status,
-					tid_agg_rx->reorder_buf[index]->cb,
-					sizeof(status));
-				sband = local->hw.wiphy->bands[status.band];
-				if (status.flag & RX_FLAG_HT) {
-					/* TODO: HT rates */
-					rate = sband->bitrates;
-				} else {
-					rate = &sband->bitrates
-						[status.rate_idx];
-				}
-				__ieee80211_rx_handle_packet(hw,
-					tid_agg_rx->reorder_buf[index],
-					&status, rate);
-				tid_agg_rx->stored_mpdu_num--;
-				tid_agg_rx->reorder_buf[index] = NULL;
-			}
-			tid_agg_rx->head_seq_num =
-				seq_inc(tid_agg_rx->head_seq_num);
+			ieee80211_release_reorder_frame(hw, tid_agg_rx,
+							index);
 		}
 		if (bar_req)
 			return 1;
@@ -2376,26 +2323,50 @@ static u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
 
 	/* put the frame in the reordering buffer */
 	tid_agg_rx->reorder_buf[index] = skb;
+	tid_agg_rx->reorder_time[index] = jiffies;
 	memcpy(tid_agg_rx->reorder_buf[index]->cb, rxstatus,
 	       sizeof(*rxstatus));
 	tid_agg_rx->stored_mpdu_num++;
 	/* release the buffer until next missing frame */
 	index = seq_sub(tid_agg_rx->head_seq_num, tid_agg_rx->ssn)
 						% tid_agg_rx->buf_size;
-	while (tid_agg_rx->reorder_buf[index]) {
-		/* release the reordered frame back to stack */
-		memcpy(&status, tid_agg_rx->reorder_buf[index]->cb,
-			sizeof(status));
-		sband = local->hw.wiphy->bands[status.band];
-		if (status.flag & RX_FLAG_HT)
-			rate = sband->bitrates; /* TODO: HT rates */
-		else
-			rate = &sband->bitrates[status.rate_idx];
-		__ieee80211_rx_handle_packet(hw, tid_agg_rx->reorder_buf[index],
-					     &status, rate);
-		tid_agg_rx->stored_mpdu_num--;
-		tid_agg_rx->reorder_buf[index] = NULL;
-		tid_agg_rx->head_seq_num = seq_inc(tid_agg_rx->head_seq_num);
+	if (!tid_agg_rx->reorder_buf[index] &&
+	    tid_agg_rx->stored_mpdu_num > 1) {
+		/*
+		 * No buffers ready to be released, but check whether any
+		 * frames in the reorder buffer have timed out.
+		 */
+		int j;
+		int skipped = 1;
+		for (j = (index + 1) % tid_agg_rx->buf_size; j != index;
+		     j = (j + 1) % tid_agg_rx->buf_size) {
+			if (tid_agg_rx->reorder_buf[j] == NULL) {
+				skipped++;
+				continue;
+			}
+			if (!time_after(jiffies, tid_agg_rx->reorder_time[j] +
+					HZ / 10))
+				break;
+
+#ifdef CONFIG_MAC80211_HT_DEBUG
+			if (net_ratelimit())
+				printk(KERN_DEBUG "%s: release an RX reorder "
+				       "frame due to timeout on earlier "
+				       "frames\n",
+				       wiphy_name(hw->wiphy));
+#endif
+			ieee80211_release_reorder_frame(hw, tid_agg_rx, j);
+
+			/*
+			 * Increment the head seq# also for the skipped slots.
+			 */
+			tid_agg_rx->head_seq_num =
+				(tid_agg_rx->head_seq_num + skipped) &
+				SEQ_MASK;
+			skipped = 0;
+		}
+	} else while (tid_agg_rx->reorder_buf[index]) {
+		ieee80211_release_reorder_frame(hw, tid_agg_rx, index);
 		index =	seq_sub(tid_agg_rx->head_seq_num,
 			tid_agg_rx->ssn) % tid_agg_rx->buf_size;
 	}
@@ -2517,6 +2488,18 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
 		return;
 	}
 
+	/*
+	 * In theory, the block ack reordering should happen after duplicate
+	 * removal (ieee80211_rx_h_check(), which is an RX handler). As such,
+	 * the call to ieee80211_rx_reorder_ampdu() should really be moved to
+	 * happen as a new RX handler between ieee80211_rx_h_check and
+	 * ieee80211_rx_h_decrypt. This cleanup may eventually happen, but for
+	 * the time being, the call can be here since RX reorder buf processing
+	 * will implicitly skip duplicates. We could, in theory at least,
+	 * process frames that ieee80211_rx_h_passive_scan would drop (e.g.,
+	 * frames from other than operational channel), but that should not
+	 * happen in normal networks.
+	 */
 	if (!ieee80211_rx_reorder_ampdu(local, skb, status))
 		__ieee80211_rx_handle_packet(hw, skb, status, rate);
 
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 3bf9839f5916..2a8d09ad17ff 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -21,6 +21,7 @@
 #include <net/iw_handler.h>
 
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "mesh.h"
 
 #define IEEE80211_PROBE_DELAY (HZ / 33)
@@ -202,18 +203,6 @@ ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
 	return RX_QUEUED;
 }
 
-void ieee80211_scan_failed(struct ieee80211_local *local)
-{
-	if (WARN_ON(!local->scan_req))
-		return;
-
-	/* notify cfg80211 about the failed scan */
-	if (local->scan_req != &local->int_scan_req)
-		cfg80211_scan_done(local->scan_req, true);
-
-	local->scan_req = NULL;
-}
-
 /*
  * inform AP that we will go to sleep so that it will buffer the frames
  * while we scan
@@ -253,7 +242,7 @@ static void ieee80211_scan_ps_disable(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_local *local = sdata->local;
 
-	if (!local->powersave)
+	if (!local->ps_sdata)
 		ieee80211_send_nullfunc(local, sdata, 0);
 	else {
 		/*
@@ -274,51 +263,62 @@ static void ieee80211_scan_ps_disable(struct ieee80211_sub_if_data *sdata)
 	}
 }
 
+static void ieee80211_restore_scan_ies(struct ieee80211_local *local)
+{
+	kfree(local->scan_req->ie);
+	local->scan_req->ie = local->orig_ies;
+	local->scan_req->ie_len = local->orig_ies_len;
+}
+
 void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 	struct ieee80211_sub_if_data *sdata;
+	bool was_hw_scan;
 
-	if (WARN_ON(!local->hw_scanning && !local->sw_scanning))
+	mutex_lock(&local->scan_mtx);
+
+	if (WARN_ON(!local->hw_scanning && !local->sw_scanning)) {
+		mutex_unlock(&local->scan_mtx);
 		return;
+	}
 
-	if (WARN_ON(!local->scan_req))
+	if (WARN_ON(!local->scan_req)) {
+		mutex_unlock(&local->scan_mtx);
 		return;
+	}
+
+	if (local->hw_scanning)
+		ieee80211_restore_scan_ies(local);
 
 	if (local->scan_req != &local->int_scan_req)
 		cfg80211_scan_done(local->scan_req, aborted);
 	local->scan_req = NULL;
 
-	local->last_scan_completed = jiffies;
+	was_hw_scan = local->hw_scanning;
+	local->hw_scanning = false;
+	local->sw_scanning = false;
+	local->scan_channel = NULL;
 
-	if (local->hw_scanning) {
-		local->hw_scanning = false;
-		/*
-		 * Somebody might have requested channel change during scan
-		 * that we won't have acted upon, try now. ieee80211_hw_config
-		 * will set the flag based on actual changes.
-		 */
-		ieee80211_hw_config(local, 0);
-		goto done;
-	}
+	/* we only have to protect scan_req and hw/sw scan */
+	mutex_unlock(&local->scan_mtx);
 
-	local->sw_scanning = false;
 	ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
+	if (was_hw_scan)
+		goto done;
 
 	netif_tx_lock_bh(local->mdev);
 	netif_addr_lock(local->mdev);
 	local->filter_flags &= ~FIF_BCN_PRBRESP_PROMISC;
-	local->ops->configure_filter(local_to_hw(local),
-				     FIF_BCN_PRBRESP_PROMISC,
-				     &local->filter_flags,
-				     local->mdev->mc_count,
-				     local->mdev->mc_list);
+	drv_configure_filter(local, FIF_BCN_PRBRESP_PROMISC,
+			     &local->filter_flags,
+			     local->mdev->mc_count,
+			     local->mdev->mc_list);
 
 	netif_addr_unlock(local->mdev);
 	netif_tx_unlock_bh(local->mdev);
 
-	if (local->ops->sw_scan_complete)
-		local->ops->sw_scan_complete(local_to_hw(local));
+	drv_sw_scan_complete(local);
 
 	mutex_lock(&local->iflist_mtx);
 	list_for_each_entry(sdata, &local->interfaces, list) {
@@ -338,18 +338,160 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
 		if (sdata->vif.type == NL80211_IFTYPE_AP ||
 		    sdata->vif.type == NL80211_IFTYPE_ADHOC ||
 		    sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
-			ieee80211_if_config(sdata,
-					    IEEE80211_IFCC_BEACON_ENABLED);
+			ieee80211_bss_info_change_notify(
+				sdata, BSS_CHANGED_BEACON_ENABLED);
 	}
 	mutex_unlock(&local->iflist_mtx);
 
  done:
+	ieee80211_recalc_idle(local);
 	ieee80211_mlme_notify_scan_completed(local);
 	ieee80211_ibss_notify_scan_completed(local);
 	ieee80211_mesh_notify_scan_completed(local);
 }
 EXPORT_SYMBOL(ieee80211_scan_completed);
 
+static int ieee80211_start_sw_scan(struct ieee80211_local *local)
+{
+	struct ieee80211_sub_if_data *sdata;
+
+	/*
+	 * Hardware/driver doesn't support hw_scan, so use software
+	 * scanning instead. First send a nullfunc frame with power save
+	 * bit on so that AP will buffer the frames for us while we are not
+	 * listening, then send probe requests to each channel and wait for
+	 * the responses. After all channels are scanned, tune back to the
+	 * original channel and send a nullfunc frame with power save bit
+	 * off to trigger the AP to send us all the buffered frames.
+	 *
+	 * Note that while local->sw_scanning is true everything else but
+	 * nullfunc frames and probe requests will be dropped in
+	 * ieee80211_tx_h_check_assoc().
+	 */
+	drv_sw_scan_start(local);
+
+	mutex_lock(&local->iflist_mtx);
+	list_for_each_entry(sdata, &local->interfaces, list) {
+		if (!netif_running(sdata->dev))
+			continue;
+
+		/* disable beaconing */
+		if (sdata->vif.type == NL80211_IFTYPE_AP ||
+		    sdata->vif.type == NL80211_IFTYPE_ADHOC ||
+		    sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
+			ieee80211_bss_info_change_notify(
+				sdata, BSS_CHANGED_BEACON_ENABLED);
+
+		if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+			if (sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED) {
+				netif_tx_stop_all_queues(sdata->dev);
+				ieee80211_scan_ps_enable(sdata);
+			}
+		} else
+			netif_tx_stop_all_queues(sdata->dev);
+	}
+	mutex_unlock(&local->iflist_mtx);
+
+	local->scan_state = SCAN_SET_CHANNEL;
+	local->scan_channel_idx = 0;
+
+	netif_addr_lock_bh(local->mdev);
+	local->filter_flags |= FIF_BCN_PRBRESP_PROMISC;
+	drv_configure_filter(local, FIF_BCN_PRBRESP_PROMISC,
+			     &local->filter_flags,
+			     local->mdev->mc_count,
+			     local->mdev->mc_list);
+	netif_addr_unlock_bh(local->mdev);
+
+	/* TODO: start scan as soon as all nullfunc frames are ACKed */
+	queue_delayed_work(local->hw.workqueue, &local->scan_work,
+			   IEEE80211_CHANNEL_TIME);
+
+	return 0;
+}
+
+
+static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata,
+				  struct cfg80211_scan_request *req)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+	int rc;
+
+	if (local->scan_req)
+		return -EBUSY;
+
+	if (local->ops->hw_scan) {
+		u8 *ies;
+		int ielen;
+
+		ies = kmalloc(2 + IEEE80211_MAX_SSID_LEN +
+			      local->scan_ies_len + req->ie_len, GFP_KERNEL);
+		if (!ies)
+			return -ENOMEM;
+
+		ielen = ieee80211_build_preq_ies(local, ies,
+						 req->ie, req->ie_len);
+		local->orig_ies = req->ie;
+		local->orig_ies_len = req->ie_len;
+		req->ie = ies;
+		req->ie_len = ielen;
+	}
+
+	local->scan_req = req;
+	local->scan_sdata = sdata;
+
+	if (req != &local->int_scan_req &&
+	    sdata->vif.type == NL80211_IFTYPE_STATION &&
+	    (ifmgd->state == IEEE80211_STA_MLME_DIRECT_PROBE ||
+	     ifmgd->state == IEEE80211_STA_MLME_AUTHENTICATE ||
+	     ifmgd->state == IEEE80211_STA_MLME_ASSOCIATE)) {
+		/* actually wait for the assoc to finish/time out */
+		set_bit(IEEE80211_STA_REQ_SCAN, &ifmgd->request);
+		return 0;
+	}
+
+	if (local->ops->hw_scan)
+		local->hw_scanning = true;
+	else
+		local->sw_scanning = true;
+	/*
+	 * Kicking off the scan need not be protected,
+	 * only the scan variable stuff, since now
+	 * local->scan_req is assigned and other callers
+	 * will abort their scan attempts.
+	 *
+	 * This avoids getting a scan_mtx -> iflist_mtx
+	 * dependency, so that the scan completed calls
+	 * have more locking freedom.
+	 */
+
+	ieee80211_recalc_idle(local);
+	mutex_unlock(&local->scan_mtx);
+
+	if (local->ops->hw_scan)
+		rc = drv_hw_scan(local, local->scan_req);
+	else
+		rc = ieee80211_start_sw_scan(local);
+
+	mutex_lock(&local->scan_mtx);
+
+	if (rc) {
+		if (local->ops->hw_scan) {
+			local->hw_scanning = false;
+			ieee80211_restore_scan_ies(local);
+		} else
+			local->sw_scanning = false;
+
+		ieee80211_recalc_idle(local);
+
+		local->scan_req = NULL;
+		local->scan_sdata = NULL;
+	}
+
+	return rc;
+}
+
 void ieee80211_scan_work(struct work_struct *work)
 {
 	struct ieee80211_local *local =
@@ -359,17 +501,41 @@ void ieee80211_scan_work(struct work_struct *work)
 	int skip, i;
 	unsigned long next_delay = 0;
 
+	mutex_lock(&local->scan_mtx);
+	if (!sdata || !local->scan_req) {
+		mutex_unlock(&local->scan_mtx);
+		return;
+	}
+
+	if (local->scan_req && !(local->sw_scanning || local->hw_scanning)) {
+		struct cfg80211_scan_request *req = local->scan_req;
+		int rc;
+
+		local->scan_req = NULL;
+
+		rc = __ieee80211_start_scan(sdata, req);
+		mutex_unlock(&local->scan_mtx);
+
+		if (rc)
+			ieee80211_scan_completed(&local->hw, true);
+		return;
+	}
+
+	mutex_unlock(&local->scan_mtx);
+
 	/*
 	 * Avoid re-scheduling when the sdata is going away.
 	 */
-	if (!netif_running(sdata->dev))
+	if (!netif_running(sdata->dev)) {
+		ieee80211_scan_completed(&local->hw, true);
 		return;
+	}
 
 	switch (local->scan_state) {
 	case SCAN_SET_CHANNEL:
 		/* if no more bands/channels left, complete scan */
 		if (local->scan_channel_idx >= local->scan_req->n_channels) {
-			ieee80211_scan_completed(local_to_hw(local), false);
+			ieee80211_scan_completed(&local->hw, false);
 			return;
 		}
 		skip = 0;
@@ -393,24 +559,39 @@ void ieee80211_scan_work(struct work_struct *work)
 		if (skip)
 			break;
 
-		next_delay = IEEE80211_PROBE_DELAY +
-			     usecs_to_jiffies(local->hw.channel_change_time);
+		/*
+		 * Probe delay is used to update the NAV, cf. 11.1.3.2.2
+		 * (which unfortunately doesn't say _why_ step a) is done,
+		 * but it waits for the probe delay or until a frame is
+		 * received - and the received frame would update the NAV).
+		 * For now, we do not support waiting until a frame is
+		 * received.
+		 *
+		 * In any case, it is not necessary for a passive scan.
+		 */
+		if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN ||
+		    !local->scan_req->n_ssids) {
+			next_delay = IEEE80211_PASSIVE_CHANNEL_TIME;
+			break;
+		}
+
+		next_delay = IEEE80211_PROBE_DELAY;
 		local->scan_state = SCAN_SEND_PROBE;
 		break;
 	case SCAN_SEND_PROBE:
-		next_delay = IEEE80211_PASSIVE_CHANNEL_TIME;
-		local->scan_state = SCAN_SET_CHANNEL;
-
-		if (local->scan_channel->flags & IEEE80211_CHAN_PASSIVE_SCAN ||
-		    !local->scan_req->n_ssids)
-			break;
 		for (i = 0; i < local->scan_req->n_ssids; i++)
 			ieee80211_send_probe_req(
 				sdata, NULL,
 				local->scan_req->ssids[i].ssid,
 				local->scan_req->ssids[i].ssid_len,
 				local->scan_req->ie, local->scan_req->ie_len);
+
+		/*
+		 * After sending probe requests, wait for probe responses
+		 * on the channel.
+		 */
 		next_delay = IEEE80211_CHANNEL_TIME;
+		local->scan_state = SCAN_SET_CHANNEL;
 		break;
 	}
 
@@ -418,150 +599,53 @@ void ieee80211_scan_work(struct work_struct *work)
 			   next_delay);
 }
 
-
-int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
-			 struct cfg80211_scan_request *req)
+int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
+			   struct cfg80211_scan_request *req)
 {
-	struct ieee80211_local *local = scan_sdata->local;
-	struct ieee80211_sub_if_data *sdata;
-
-	if (!req)
-		return -EINVAL;
-
-	if (local->scan_req && local->scan_req != req)
-		return -EBUSY;
-
-	local->scan_req = req;
-
-	/* MLME-SCAN.request (page 118)  page 144 (11.1.3.1)
-	 * BSSType: INFRASTRUCTURE, INDEPENDENT, ANY_BSS
-	 * BSSID: MACAddress
-	 * SSID
-	 * ScanType: ACTIVE, PASSIVE
-	 * ProbeDelay: delay (in microseconds) to be used prior to transmitting
-	 *    a Probe frame during active scanning
-	 * ChannelList
-	 * MinChannelTime (>= ProbeDelay), in TU
-	 * MaxChannelTime: (>= MinChannelTime), in TU
-	 */
-
-	 /* MLME-SCAN.confirm
-	  * BSSDescriptionSet
-	  * ResultCode: SUCCESS, INVALID_PARAMETERS
-	 */
-
-	if (local->sw_scanning || local->hw_scanning) {
-		if (local->scan_sdata == scan_sdata)
-			return 0;
-		return -EBUSY;
-	}
-
-	if (local->ops->hw_scan) {
-		int rc;
-
-		local->hw_scanning = true;
-		rc = local->ops->hw_scan(local_to_hw(local), req);
-		if (rc) {
-			local->hw_scanning = false;
-			return rc;
-		}
-		local->scan_sdata = scan_sdata;
-		return 0;
-	}
-
-	/*
-	 * Hardware/driver doesn't support hw_scan, so use software
-	 * scanning instead. First send a nullfunc frame with power save
-	 * bit on so that AP will buffer the frames for us while we are not
-	 * listening, then send probe requests to each channel and wait for
-	 * the responses. After all channels are scanned, tune back to the
-	 * original channel and send a nullfunc frame with power save bit
-	 * off to trigger the AP to send us all the buffered frames.
-	 *
-	 * Note that while local->sw_scanning is true everything else but
-	 * nullfunc frames and probe requests will be dropped in
-	 * ieee80211_tx_h_check_assoc().
-	 */
-	local->sw_scanning = true;
-	if (local->ops->sw_scan_start)
-		local->ops->sw_scan_start(local_to_hw(local));
+	int res;
 
-	mutex_lock(&local->iflist_mtx);
-	list_for_each_entry(sdata, &local->interfaces, list) {
-		if (!netif_running(sdata->dev))
-			continue;
+	mutex_lock(&sdata->local->scan_mtx);
+	res = __ieee80211_start_scan(sdata, req);
+	mutex_unlock(&sdata->local->scan_mtx);
 
-		/* disable beaconing */
-		if (sdata->vif.type == NL80211_IFTYPE_AP ||
-		    sdata->vif.type == NL80211_IFTYPE_ADHOC ||
-		    sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
-			ieee80211_if_config(sdata,
-					    IEEE80211_IFCC_BEACON_ENABLED);
+	return res;
+}
 
-		if (sdata->vif.type == NL80211_IFTYPE_STATION) {
-			if (sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED) {
-				netif_tx_stop_all_queues(sdata->dev);
-				ieee80211_scan_ps_enable(sdata);
-			}
-		} else
-			netif_tx_stop_all_queues(sdata->dev);
-	}
-	mutex_unlock(&local->iflist_mtx);
+int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
+				    const u8 *ssid, u8 ssid_len)
+{
+	struct ieee80211_local *local = sdata->local;
+	int ret = -EBUSY;
 
-	local->scan_state = SCAN_SET_CHANNEL;
-	local->scan_channel_idx = 0;
-	local->scan_sdata = scan_sdata;
-	local->scan_req = req;
+	mutex_lock(&local->scan_mtx);
 
-	netif_addr_lock_bh(local->mdev);
-	local->filter_flags |= FIF_BCN_PRBRESP_PROMISC;
-	local->ops->configure_filter(local_to_hw(local),
-				     FIF_BCN_PRBRESP_PROMISC,
-				     &local->filter_flags,
-				     local->mdev->mc_count,
-				     local->mdev->mc_list);
-	netif_addr_unlock_bh(local->mdev);
+	/* busy scanning */
+	if (local->scan_req)
+		goto unlock;
 
-	/* TODO: start scan as soon as all nullfunc frames are ACKed */
-	queue_delayed_work(local->hw.workqueue, &local->scan_work,
-			   IEEE80211_CHANNEL_TIME);
+	memcpy(local->int_scan_req.ssids[0].ssid, ssid, IEEE80211_MAX_SSID_LEN);
+	local->int_scan_req.ssids[0].ssid_len = ssid_len;
 
-	return 0;
+	ret = __ieee80211_start_scan(sdata, &sdata->local->int_scan_req);
+ unlock:
+	mutex_unlock(&local->scan_mtx);
+	return ret;
 }
 
-
-int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
-			   struct cfg80211_scan_request *req)
+void ieee80211_scan_cancel(struct ieee80211_local *local)
 {
-	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_if_managed *ifmgd;
-
-	if (!req)
-		return -EINVAL;
+	bool swscan;
 
-	if (local->scan_req && local->scan_req != req)
-		return -EBUSY;
-
-	local->scan_req = req;
-
-	if (sdata->vif.type != NL80211_IFTYPE_STATION)
-		return ieee80211_start_scan(sdata, req);
+	cancel_delayed_work_sync(&local->scan_work);
 
 	/*
-	 * STA has a state machine that might need to defer scanning
-	 * while it's trying to associate/authenticate, therefore we
-	 * queue it up to the state machine in that case.
+	 * Only call this function when a scan can't be
+	 * queued -- mostly at suspend under RTNL.
 	 */
+	mutex_lock(&local->scan_mtx);
+	swscan = local->sw_scanning;
+	mutex_unlock(&local->scan_mtx);
 
-	if (local->sw_scanning || local->hw_scanning) {
-		if (local->scan_sdata == sdata)
-			return 0;
-		return -EBUSY;
-	}
-
-	ifmgd = &sdata->u.mgd;
-	set_bit(IEEE80211_STA_REQ_SCAN, &ifmgd->request);
-	queue_work(local->hw.workqueue, &ifmgd->work);
-
-	return 0;
+	if (swscan)
+		ieee80211_scan_completed(&local->hw, true);
 }
diff --git a/net/mac80211/spectmgmt.c b/net/mac80211/spectmgmt.c
index 5f7a2624ed74..68953033403d 100644
--- a/net/mac80211/spectmgmt.c
+++ b/net/mac80211/spectmgmt.c
@@ -15,7 +15,7 @@
  */
 
 #include <linux/ieee80211.h>
-#include <net/wireless.h>
+#include <net/cfg80211.h>
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
 #include "sta_info.h"
@@ -84,104 +84,3 @@ void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
 			mgmt->sa, mgmt->bssid,
 			mgmt->u.action.u.measurement.dialog_token);
 }
-
-void ieee80211_chswitch_work(struct work_struct *work)
-{
-	struct ieee80211_sub_if_data *sdata =
-		container_of(work, struct ieee80211_sub_if_data, u.mgd.chswitch_work);
-	struct ieee80211_bss *bss;
-	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
-
-	if (!netif_running(sdata->dev))
-		return;
-
-	bss = ieee80211_rx_bss_get(sdata->local, ifmgd->bssid,
-				   sdata->local->hw.conf.channel->center_freq,
-				   ifmgd->ssid, ifmgd->ssid_len);
-	if (!bss)
-		goto exit;
-
-	sdata->local->oper_channel = sdata->local->csa_channel;
-	/* XXX: shouldn't really modify cfg80211-owned data! */
-	if (!ieee80211_hw_config(sdata->local, IEEE80211_CONF_CHANGE_CHANNEL))
-		bss->cbss.channel = sdata->local->oper_channel;
-
-	ieee80211_rx_bss_put(sdata->local, bss);
-exit:
-	ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
-	ieee80211_wake_queues_by_reason(&sdata->local->hw,
-					IEEE80211_QUEUE_STOP_REASON_CSA);
-}
-
-void ieee80211_chswitch_timer(unsigned long data)
-{
-	struct ieee80211_sub_if_data *sdata =
-		(struct ieee80211_sub_if_data *) data;
-	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
-
-	queue_work(sdata->local->hw.workqueue, &ifmgd->chswitch_work);
-}
-
-void ieee80211_process_chanswitch(struct ieee80211_sub_if_data *sdata,
-				  struct ieee80211_channel_sw_ie *sw_elem,
-				  struct ieee80211_bss *bss)
-{
-	struct ieee80211_channel *new_ch;
-	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
-	int new_freq = ieee80211_channel_to_frequency(sw_elem->new_ch_num);
-
-	/* FIXME: Handle ADHOC later */
-	if (sdata->vif.type != NL80211_IFTYPE_STATION)
-		return;
-
-	if (ifmgd->state != IEEE80211_STA_MLME_ASSOCIATED)
-		return;
-
-	if (sdata->local->sw_scanning || sdata->local->hw_scanning)
-		return;
-
-	/* Disregard subsequent beacons if we are already running a timer
-	   processing a CSA */
-
-	if (ifmgd->flags & IEEE80211_STA_CSA_RECEIVED)
-		return;
-
-	new_ch = ieee80211_get_channel(sdata->local->hw.wiphy, new_freq);
-	if (!new_ch || new_ch->flags & IEEE80211_CHAN_DISABLED)
-		return;
-
-	sdata->local->csa_channel = new_ch;
-
-	if (sw_elem->count <= 1) {
-		queue_work(sdata->local->hw.workqueue, &ifmgd->chswitch_work);
-	} else {
-		ieee80211_stop_queues_by_reason(&sdata->local->hw,
-						IEEE80211_QUEUE_STOP_REASON_CSA);
-		ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED;
-		mod_timer(&ifmgd->chswitch_timer,
-			  jiffies +
-			  msecs_to_jiffies(sw_elem->count *
-					   bss->cbss.beacon_interval));
-	}
-}
-
-void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
-				 u16 capab_info, u8 *pwr_constr_elem,
-				 u8 pwr_constr_elem_len)
-{
-	struct ieee80211_conf *conf = &sdata->local->hw.conf;
-
-	if (!(capab_info & WLAN_CAPABILITY_SPECTRUM_MGMT))
-		return;
-
-	/* Power constraint IE length should be 1 octet */
-	if (pwr_constr_elem_len != 1)
-		return;
-
-	if ((*pwr_constr_elem <= conf->channel->max_power) &&
-	    (*pwr_constr_elem != sdata->local->power_constr_level)) {
-		sdata->local->power_constr_level = *pwr_constr_elem;
-		ieee80211_hw_config(sdata->local, 0);
-	}
-}
-
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index c5f14e6bbde2..a360bceeba59 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -19,6 +19,7 @@
 
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "rate.h"
 #include "sta_info.h"
 #include "debugfs_sta.h"
@@ -43,6 +44,15 @@
  * When the insertion fails (sta_info_insert()) returns non-zero), the
  * structure will have been freed by sta_info_insert()!
  *
+ * sta entries are added by mac80211 when you establish a link with a
+ * peer. This means different things for the different type of interfaces
+ * we support. For a regular station this mean we add the AP sta when we
+ * receive an assocation response from the AP. For IBSS this occurs when
+ * we receive a probe response or a beacon from target IBSS network. For
+ * WDS we add the sta for the peer imediately upon device open. When using
+ * AP mode we add stations for each respective station upon request from
+ * userspace through nl80211.
+ *
  * Because there are debugfs entries for each station, and adding those
  * must be able to sleep, it is also possible to "pin" a station entry,
  * that means it can be removed from the hash table but not be freed.
@@ -292,6 +302,9 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 	skb_queue_head_init(&sta->ps_tx_buf);
 	skb_queue_head_init(&sta->tx_filtered);
 
+	for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
+		sta->last_seq_ctrl[i] = cpu_to_le16(USHORT_MAX);
+
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
 	printk(KERN_DEBUG "%s: Allocated STA %pM\n",
 	       wiphy_name(local->hw.wiphy), sta->sta.addr);
@@ -346,8 +359,7 @@ int sta_info_insert(struct sta_info *sta)
 					     struct ieee80211_sub_if_data,
 					     u.ap);
 
-		local->ops->sta_notify(local_to_hw(local), &sdata->vif,
-				       STA_NOTIFY_ADD, &sta->sta);
+		drv_sta_notify(local, &sdata->vif, STA_NOTIFY_ADD, &sta->sta);
 	}
 
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
@@ -405,8 +417,7 @@ static void __sta_info_set_tim_bit(struct ieee80211_if_ap *bss,
 
 	if (sta->local->ops->set_tim) {
 		sta->local->tim_in_locked_section = true;
-		sta->local->ops->set_tim(local_to_hw(sta->local),
-					 &sta->sta, true);
+		drv_set_tim(sta->local, &sta->sta, true);
 		sta->local->tim_in_locked_section = false;
 	}
 }
@@ -431,8 +442,7 @@ static void __sta_info_clear_tim_bit(struct ieee80211_if_ap *bss,
 
 	if (sta->local->ops->set_tim) {
 		sta->local->tim_in_locked_section = true;
-		sta->local->ops->set_tim(local_to_hw(sta->local),
-					 &sta->sta, false);
+		drv_set_tim(sta->local, &sta->sta, false);
 		sta->local->tim_in_locked_section = false;
 	}
 }
@@ -482,8 +492,8 @@ static void __sta_info_unlink(struct sta_info **sta)
 					     struct ieee80211_sub_if_data,
 					     u.ap);
 
-		local->ops->sta_notify(local_to_hw(local), &sdata->vif,
-				       STA_NOTIFY_REMOVE, &(*sta)->sta);
+		drv_sta_notify(local, &sdata->vif, STA_NOTIFY_REMOVE,
+			       &(*sta)->sta);
 	}
 
 	if (ieee80211_vif_is_mesh(&sdata->vif)) {
@@ -543,9 +553,8 @@ void sta_info_unlink(struct sta_info **sta)
 	spin_unlock_irqrestore(&local->sta_lock, flags);
 }
 
-static inline int sta_info_buffer_expired(struct ieee80211_local *local,
-					  struct sta_info *sta,
-					  struct sk_buff *skb)
+static int sta_info_buffer_expired(struct sta_info *sta,
+				   struct sk_buff *skb)
 {
 	struct ieee80211_tx_info *info;
 	int timeout;
@@ -556,8 +565,9 @@ static inline int sta_info_buffer_expired(struct ieee80211_local *local,
 	info = IEEE80211_SKB_CB(skb);
 
 	/* Timeout: (2 * listen_interval * beacon_int * 1024 / 1000000) sec */
-	timeout = (sta->listen_interval * local->hw.conf.beacon_int * 32 /
-		   15625) * HZ;
+	timeout = (sta->listen_interval *
+		   sta->sdata->vif.bss_conf.beacon_int *
+		   32 / 15625) * HZ;
 	if (timeout < STA_TX_BUFFER_EXPIRE)
 		timeout = STA_TX_BUFFER_EXPIRE;
 	return time_after(jiffies, info->control.jiffies + timeout);
@@ -577,7 +587,7 @@ static void sta_info_cleanup_expire_buffered(struct ieee80211_local *local,
 	for (;;) {
 		spin_lock_irqsave(&sta->ps_tx_buf.lock, flags);
 		skb = skb_peek(&sta->ps_tx_buf);
-		if (sta_info_buffer_expired(local, sta, skb))
+		if (sta_info_buffer_expired(sta, skb))
 			skb = __skb_dequeue(&sta->ps_tx_buf);
 		else
 			skb = NULL;
@@ -610,6 +620,9 @@ static void sta_info_cleanup(unsigned long data)
 		sta_info_cleanup_expire_buffered(local, sta);
 	rcu_read_unlock();
 
+	if (local->quiescing)
+		return;
+
 	local->sta_cleanup.expires =
 		round_jiffies(jiffies + STA_INFO_CLEANUP_INTERVAL);
 	add_timer(&local->sta_cleanup);
@@ -686,41 +699,10 @@ static void sta_info_debugfs_add_work(struct work_struct *work)
 }
 #endif
 
-static void __ieee80211_run_pending_flush(struct ieee80211_local *local)
-{
-	struct sta_info *sta;
-	unsigned long flags;
-
-	ASSERT_RTNL();
-
-	spin_lock_irqsave(&local->sta_lock, flags);
-	while (!list_empty(&local->sta_flush_list)) {
-		sta = list_first_entry(&local->sta_flush_list,
-				       struct sta_info, list);
-		list_del(&sta->list);
-		spin_unlock_irqrestore(&local->sta_lock, flags);
-		sta_info_destroy(sta);
-		spin_lock_irqsave(&local->sta_lock, flags);
-	}
-	spin_unlock_irqrestore(&local->sta_lock, flags);
-}
-
-static void ieee80211_sta_flush_work(struct work_struct *work)
-{
-	struct ieee80211_local *local =
-		container_of(work, struct ieee80211_local, sta_flush_work);
-
-	rtnl_lock();
-	__ieee80211_run_pending_flush(local);
-	rtnl_unlock();
-}
-
 void sta_info_init(struct ieee80211_local *local)
 {
 	spin_lock_init(&local->sta_lock);
 	INIT_LIST_HEAD(&local->sta_list);
-	INIT_LIST_HEAD(&local->sta_flush_list);
-	INIT_WORK(&local->sta_flush_work, ieee80211_sta_flush_work);
 
 	setup_timer(&local->sta_cleanup, sta_info_cleanup,
 		    (unsigned long)local);
@@ -741,7 +723,6 @@ int sta_info_start(struct ieee80211_local *local)
 void sta_info_stop(struct ieee80211_local *local)
 {
 	del_timer(&local->sta_cleanup);
-	cancel_work_sync(&local->sta_flush_work);
 #ifdef CONFIG_MAC80211_DEBUGFS
 	/*
 	 * Make sure the debugfs adding work isn't pending after this
@@ -752,10 +733,7 @@ void sta_info_stop(struct ieee80211_local *local)
 	cancel_work_sync(&local->sta_debugfs_add);
 #endif
 
-	rtnl_lock();
 	sta_info_flush(local, NULL);
-	__ieee80211_run_pending_flush(local);
-	rtnl_unlock();
 }
 
 /**
@@ -767,7 +745,7 @@ void sta_info_stop(struct ieee80211_local *local)
  * @sdata: matching rule for the net device (sta->dev) or %NULL to match all STAs
  */
 int sta_info_flush(struct ieee80211_local *local,
-		    struct ieee80211_sub_if_data *sdata)
+		   struct ieee80211_sub_if_data *sdata)
 {
 	struct sta_info *sta, *tmp;
 	LIST_HEAD(tmp_list);
@@ -775,7 +753,6 @@ int sta_info_flush(struct ieee80211_local *local,
 	unsigned long flags;
 
 	might_sleep();
-	ASSERT_RTNL();
 
 	spin_lock_irqsave(&local->sta_lock, flags);
 	list_for_each_entry_safe(sta, tmp, &local->sta_list, list) {
@@ -795,39 +772,6 @@ int sta_info_flush(struct ieee80211_local *local,
 	return ret;
 }
 
-/**
- * sta_info_flush_delayed - flush matching STA entries from the STA table
- *
- * This function unlinks all stations for a given interface and queues
- * them for freeing. Note that the workqueue function scheduled here has
- * to run before any new keys can be added to the system to avoid set_key()
- * callback ordering issues.
- *
- * @sdata: the interface
- */
-void sta_info_flush_delayed(struct ieee80211_sub_if_data *sdata)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct sta_info *sta, *tmp;
-	unsigned long flags;
-	bool work = false;
-
-	spin_lock_irqsave(&local->sta_lock, flags);
-	list_for_each_entry_safe(sta, tmp, &local->sta_list, list) {
-		if (sdata == sta->sdata) {
-			__sta_info_unlink(&sta);
-			if (sta) {
-				list_add_tail(&sta->list,
-					      &local->sta_flush_list);
-				work = true;
-			}
-		}
-	}
-	if (work)
-		schedule_work(&local->sta_flush_work);
-	spin_unlock_irqrestore(&local->sta_lock, flags);
-}
-
 void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata,
 			  unsigned long exp_time)
 {
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 5534d489f506..49a1a1f76511 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -88,6 +88,7 @@ struct tid_ampdu_tx {
  * struct tid_ampdu_rx - TID aggregation information (Rx).
  *
  * @reorder_buf: buffer to reorder incoming aggregated MPDUs
+ * @reorder_time: jiffies when skb was added
  * @session_timer: check if peer keeps Tx-ing on the TID (by timeout value)
  * @head_seq_num: head sequence number in reordering buffer.
  * @stored_mpdu_num: number of MPDUs in reordering buffer
@@ -99,6 +100,7 @@ struct tid_ampdu_tx {
  */
 struct tid_ampdu_rx {
 	struct sk_buff **reorder_buf;
+	unsigned long *reorder_time;
 	struct timer_list session_timer;
 	u16 head_seq_num;
 	u16 stored_mpdu_num;
@@ -214,6 +216,7 @@ struct sta_ampdu_mlme {
  * @plink_state: peer link state
  * @plink_timeout: timeout of peer link
  * @plink_timer: peer link watch timer
+ * @plink_timer_was_running: used by suspend/resume to restore timers
  * @debugfs: debug filesystem info
  * @sta: station information we share with the driver
  */
@@ -291,6 +294,7 @@ struct sta_info {
 	__le16 reason;
 	u8 plink_retries;
 	bool ignore_plink_timer;
+	bool plink_timer_was_running;
 	enum plink_state plink_state;
 	u32 plink_timeout;
 	struct timer_list plink_timer;
@@ -442,8 +446,7 @@ void sta_info_init(struct ieee80211_local *local);
 int sta_info_start(struct ieee80211_local *local);
 void sta_info_stop(struct ieee80211_local *local);
 int sta_info_flush(struct ieee80211_local *local,
-		    struct ieee80211_sub_if_data *sdata);
-void sta_info_flush_delayed(struct ieee80211_sub_if_data *sdata);
+		   struct ieee80211_sub_if_data *sdata);
 void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata,
 			  unsigned long exp_time);
 
diff --git a/net/mac80211/tkip.c b/net/mac80211/tkip.c
index 38fa111d2dc6..964b7faa7f17 100644
--- a/net/mac80211/tkip.c
+++ b/net/mac80211/tkip.c
@@ -13,6 +13,7 @@
 #include <asm/unaligned.h>
 
 #include <net/mac80211.h>
+#include "driver-ops.h"
 #include "key.h"
 #include "tkip.h"
 #include "wep.h"
@@ -307,9 +308,8 @@ int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
 			if (is_multicast_ether_addr(ra))
 				sta_addr = bcast;
 
-			key->local->ops->update_tkip_key(
-				local_to_hw(key->local), &key->conf,
-				sta_addr, iv32, key->u.tkip.rx[queue].p1k);
+			drv_update_tkip_key(key->local, &key->conf, sta_addr,
+					    iv32, key->u.tkip.rx[queue].p1k);
 		}
 	}
 
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 63656266d567..d238a8939a09 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -25,6 +25,7 @@
 #include <asm/unaligned.h>
 
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "led.h"
 #include "mesh.h"
 #include "wep.h"
@@ -399,6 +400,7 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
 			sta_info_set_tim_bit(sta);
 
 		info->control.jiffies = jiffies;
+		info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
 		skb_queue_tail(&sta->ps_tx_buf, tx->skb);
 		return TX_QUEUED;
 	}
@@ -409,8 +411,24 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
 		       sta->sta.addr);
 	}
 #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
-	clear_sta_flags(sta, WLAN_STA_PSPOLL);
+	if (test_and_clear_sta_flags(sta, WLAN_STA_PSPOLL)) {
+		/*
+		 * The sleeping station with pending data is now snoozing.
+		 * It queried us for its buffered frames and will go back
+		 * to deep sleep once it got everything.
+		 *
+		 * inform the driver, in case the hardware does powersave
+		 * frame filtering and keeps a station  blacklist on its own
+		 * (e.g: p54), so that frames can be delivered unimpeded.
+		 *
+		 * Note: It should be safe to disable the filter now.
+		 * As, it is really unlikely that we still have any pending
+		 * frame for this station in the hw's buffers/fifos left,
+		 * that is not rejected with a unsuccessful tx_status yet.
+		 */
 
+		info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
+	}
 	return TX_CONTINUE;
 }
 
@@ -429,7 +447,7 @@ ieee80211_tx_h_ps_buf(struct ieee80211_tx_data *tx)
 static ieee80211_tx_result debug_noinline
 ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
 {
-	struct ieee80211_key *key;
+	struct ieee80211_key *key = NULL;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
 
@@ -500,7 +518,7 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
 	sband = tx->local->hw.wiphy->bands[tx->channel->band];
 
 	len = min_t(int, tx->skb->len + FCS_LEN,
-			 tx->local->fragmentation_threshold);
+			 tx->local->hw.wiphy->frag_threshold);
 
 	/* set up the tx rate control struct we give the RC algo */
 	txrc.hw = local_to_hw(tx->local);
@@ -511,8 +529,7 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
 	txrc.max_rate_idx = tx->sdata->max_ratectrl_rateidx;
 
 	/* set up RTS protection if desired */
-	if (tx->local->rts_threshold < IEEE80211_MAX_RTS_THRESHOLD &&
-	    len > tx->local->rts_threshold) {
+	if (len > tx->local->hw.wiphy->rts_threshold) {
 		txrc.rts = rts = true;
 	}
 
@@ -542,6 +559,10 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
 	if (unlikely(!info->control.rates[0].count))
 		info->control.rates[0].count = 1;
 
+	if (WARN_ON_ONCE((info->control.rates[0].count > 1) &&
+			 (info->flags & IEEE80211_TX_CTL_NO_ACK)))
+		info->control.rates[0].count = 1;
+
 	if (is_multicast_ether_addr(hdr->addr1)) {
 		/*
 		 * XXX: verify the rate is in the basic rateset
@@ -754,7 +775,7 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx)
 	struct sk_buff *skb = tx->skb;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	struct ieee80211_hdr *hdr = (void *)skb->data;
-	int frag_threshold = tx->local->fragmentation_threshold;
+	int frag_threshold = tx->local->hw.wiphy->frag_threshold;
 	int hdrlen;
 	int fragnum;
 
@@ -852,6 +873,8 @@ ieee80211_tx_h_calculate_duration(struct ieee80211_tx_data *tx)
 
 	do {
 		hdr = (void *) skb->data;
+		if (unlikely(ieee80211_is_pspoll(hdr->frame_control)))
+			break; /* must not overwrite AID */
 		next_len = skb->next ? skb->next->len : 0;
 		group_addr = is_multicast_ether_addr(hdr->addr1);
 
@@ -885,9 +908,8 @@ ieee80211_tx_h_stats(struct ieee80211_tx_data *tx)
  * deal with packet injection down monitor interface
  * with Radiotap Header -- only called for monitor mode interface
  */
-static ieee80211_tx_result
-__ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
-			      struct sk_buff *skb)
+static bool __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
+					  struct sk_buff *skb)
 {
 	/*
 	 * this is the moment to interpret and discard the radiotap header that
@@ -938,7 +960,7 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
 				 * on transmission
 				 */
 				if (skb->len < (iterator.max_length + FCS_LEN))
-					return TX_DROP;
+					return false;
 
 				skb_trim(skb, skb->len - FCS_LEN);
 			}
@@ -960,7 +982,7 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
 	}
 
 	if (ret != -ENOENT) /* ie, if we didn't simply run out of fields */
-		return TX_DROP;
+		return false;
 
 	/*
 	 * remove the radiotap header
@@ -969,7 +991,7 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
 	 */
 	skb_pull(skb, iterator.max_length);
 
-	return TX_CONTINUE;
+	return true;
 }
 
 /*
@@ -1003,7 +1025,7 @@ __ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
 	/* process and remove the injection radiotap header */
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	if (unlikely(info->flags & IEEE80211_TX_CTL_INJECTED)) {
-		if (__ieee80211_parse_tx_radiotap(tx, skb) == TX_DROP)
+		if (!__ieee80211_parse_tx_radiotap(tx, skb))
 			return TX_DROP;
 
 		/*
@@ -1067,12 +1089,15 @@ __ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
 		info->flags |= IEEE80211_TX_CTL_NO_ACK;
 	} else {
 		tx->flags |= IEEE80211_TX_UNICAST;
-		info->flags &= ~IEEE80211_TX_CTL_NO_ACK;
+		if (unlikely(local->wifi_wme_noack_test))
+			info->flags |= IEEE80211_TX_CTL_NO_ACK;
+		else
+			info->flags &= ~IEEE80211_TX_CTL_NO_ACK;
 	}
 
 	if (tx->flags & IEEE80211_TX_FRAGMENTED) {
 		if ((tx->flags & IEEE80211_TX_UNICAST) &&
-		    skb->len + FCS_LEN > local->fragmentation_threshold &&
+		    skb->len + FCS_LEN > local->hw.wiphy->frag_threshold &&
 		    !(info->flags & IEEE80211_TX_CTL_AMPDU))
 			tx->flags |= IEEE80211_TX_FRAGMENTED;
 		else
@@ -1147,7 +1172,7 @@ static int __ieee80211_tx(struct ieee80211_local *local,
 
 		next = skb->next;
 		len = skb->len;
-		ret = local->ops->tx(local_to_hw(local), skb);
+		ret = drv_tx(local, skb);
 		if (WARN_ON(ret != NETDEV_TX_OK && skb->len != len)) {
 			dev_kfree_skb(skb);
 			ret = NETDEV_TX_OK;
@@ -1213,7 +1238,6 @@ static void ieee80211_tx(struct net_device *dev, struct sk_buff *skb,
 			 bool txpending)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct sta_info *sta;
 	struct ieee80211_tx_data tx;
 	ieee80211_tx_result res_prepare;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
@@ -1245,7 +1269,6 @@ static void ieee80211_tx(struct net_device *dev, struct sk_buff *skb,
 		return;
 	}
 
-	sta = tx.sta;
 	tx.channel = local->hw.conf.channel;
 	info->band = tx.channel->band;
 
@@ -1392,7 +1415,8 @@ int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	}
 
 	if ((local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) &&
-	    local->hw.conf.dynamic_ps_timeout > 0) {
+	    local->hw.conf.dynamic_ps_timeout > 0 &&
+	    !local->sw_scanning && !local->hw_scanning && local->ps_sdata) {
 		if (local->hw.conf.flags & IEEE80211_CONF_PS) {
 			ieee80211_stop_queues_by_reason(&local->hw,
 					IEEE80211_QUEUE_STOP_REASON_PS);
@@ -1591,7 +1615,7 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct ieee80211_local *local = sdata->local;
-	int ret = 1, head_need;
+	int ret = NETDEV_TX_BUSY, head_need;
 	u16 ethertype, hdrlen,  meshhdrlen = 0;
 	__le16 fc;
 	struct ieee80211_hdr hdr;
@@ -2086,18 +2110,18 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
 	} else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
 		struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 		struct ieee80211_hdr *hdr;
+		struct sk_buff *presp = rcu_dereference(ifibss->presp);
 
-		if (!ifibss->probe_resp)
+		if (!presp)
 			goto out;
 
-		skb = skb_copy(ifibss->probe_resp, GFP_ATOMIC);
+		skb = skb_copy(presp, GFP_ATOMIC);
 		if (!skb)
 			goto out;
 
 		hdr = (struct ieee80211_hdr *) skb->data;
 		hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
 						 IEEE80211_STYPE_BEACON);
-
 	} else if (ieee80211_vif_is_mesh(&sdata->vif)) {
 		struct ieee80211_mgmt *mgmt;
 		u8 *pos;
@@ -2117,7 +2141,7 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
 		memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
 		/* BSSID is left zeroed, wildcard value */
 		mgmt->u.beacon.beacon_int =
-			cpu_to_le16(local->hw.conf.beacon_int);
+			cpu_to_le16(sdata->vif.bss_conf.beacon_int);
 		mgmt->u.beacon.capab_info = 0x0; /* 0x0 for MPs */
 
 		pos = skb_put(skb, 2);
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index fdf432f14554..915e77769312 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -20,27 +20,21 @@
 #include <linux/if_arp.h>
 #include <linux/wireless.h>
 #include <linux/bitmap.h>
+#include <linux/crc32.h>
 #include <net/net_namespace.h>
 #include <net/cfg80211.h>
 #include <net/rtnetlink.h>
 
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "rate.h"
 #include "mesh.h"
 #include "wme.h"
+#include "led.h"
 
 /* privid for wiphys to determine whether they belong to us or not */
 void *mac80211_wiphy_privid = &mac80211_wiphy_privid;
 
-/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */
-/* Ethernet-II snap header (RFC1042 for most EtherTypes) */
-const unsigned char rfc1042_header[] __aligned(2) =
-	{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
-
-/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
-const unsigned char bridge_tunnel_header[] __aligned(2) =
-	{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
-
 struct ieee80211_hw *wiphy_to_ieee80211_hw(struct wiphy *wiphy)
 {
 	struct ieee80211_local *local;
@@ -100,70 +94,6 @@ u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
 	return NULL;
 }
 
-unsigned int ieee80211_hdrlen(__le16 fc)
-{
-	unsigned int hdrlen = 24;
-
-	if (ieee80211_is_data(fc)) {
-		if (ieee80211_has_a4(fc))
-			hdrlen = 30;
-		if (ieee80211_is_data_qos(fc))
-			hdrlen += IEEE80211_QOS_CTL_LEN;
-		goto out;
-	}
-
-	if (ieee80211_is_ctl(fc)) {
-		/*
-		 * ACK and CTS are 10 bytes, all others 16. To see how
-		 * to get this condition consider
-		 *   subtype mask:   0b0000000011110000 (0x00F0)
-		 *   ACK subtype:    0b0000000011010000 (0x00D0)
-		 *   CTS subtype:    0b0000000011000000 (0x00C0)
-		 *   bits that matter:         ^^^      (0x00E0)
-		 *   value of those: 0b0000000011000000 (0x00C0)
-		 */
-		if ((fc & cpu_to_le16(0x00E0)) == cpu_to_le16(0x00C0))
-			hdrlen = 10;
-		else
-			hdrlen = 16;
-	}
-out:
-	return hdrlen;
-}
-EXPORT_SYMBOL(ieee80211_hdrlen);
-
-unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb)
-{
-	const struct ieee80211_hdr *hdr = (const struct ieee80211_hdr *)skb->data;
-	unsigned int hdrlen;
-
-	if (unlikely(skb->len < 10))
-		return 0;
-	hdrlen = ieee80211_hdrlen(hdr->frame_control);
-	if (unlikely(hdrlen > skb->len))
-		return 0;
-	return hdrlen;
-}
-EXPORT_SYMBOL(ieee80211_get_hdrlen_from_skb);
-
-int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
-{
-	int ae = meshhdr->flags & IEEE80211S_FLAGS_AE;
-	/* 7.1.3.5a.2 */
-	switch (ae) {
-	case 0:
-		return 6;
-	case 1:
-		return 12;
-	case 2:
-		return 18;
-	case 3:
-		return 24;
-	default:
-		return 6;
-	}
-}
-
 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx)
 {
 	struct sk_buff *skb = tx->skb;
@@ -411,6 +341,52 @@ void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue)
 }
 EXPORT_SYMBOL(ieee80211_stop_queue);
 
+void ieee80211_add_pending_skb(struct ieee80211_local *local,
+			       struct sk_buff *skb)
+{
+	struct ieee80211_hw *hw = &local->hw;
+	unsigned long flags;
+	int queue = skb_get_queue_mapping(skb);
+
+	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+	__ieee80211_stop_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD);
+	__ieee80211_stop_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_PENDING);
+	skb_queue_tail(&local->pending[queue], skb);
+	__ieee80211_wake_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD);
+	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+}
+
+int ieee80211_add_pending_skbs(struct ieee80211_local *local,
+			       struct sk_buff_head *skbs)
+{
+	struct ieee80211_hw *hw = &local->hw;
+	struct sk_buff *skb;
+	unsigned long flags;
+	int queue, ret = 0, i;
+
+	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+	for (i = 0; i < hw->queues; i++)
+		__ieee80211_stop_queue(hw, i,
+			IEEE80211_QUEUE_STOP_REASON_SKB_ADD);
+
+	while ((skb = skb_dequeue(skbs))) {
+		ret++;
+		queue = skb_get_queue_mapping(skb);
+		skb_queue_tail(&local->pending[queue], skb);
+	}
+
+	for (i = 0; i < hw->queues; i++) {
+		if (ret)
+			__ieee80211_stop_queue(hw, i,
+				IEEE80211_QUEUE_STOP_REASON_PENDING);
+		__ieee80211_wake_queue(hw, i,
+			IEEE80211_QUEUE_STOP_REASON_SKB_ADD);
+	}
+	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+
+	return ret;
+}
+
 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
 				    enum queue_stop_reason reason)
 {
@@ -536,8 +512,16 @@ EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_atomic);
 void ieee802_11_parse_elems(u8 *start, size_t len,
 			    struct ieee802_11_elems *elems)
 {
+	ieee802_11_parse_elems_crc(start, len, elems, 0, 0);
+}
+
+u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
+			       struct ieee802_11_elems *elems,
+			       u64 filter, u32 crc)
+{
 	size_t left = len;
 	u8 *pos = start;
+	bool calc_crc = filter != 0;
 
 	memset(elems, 0, sizeof(*elems));
 	elems->ie_start = start;
@@ -551,7 +535,10 @@ void ieee802_11_parse_elems(u8 *start, size_t len,
 		left -= 2;
 
 		if (elen > left)
-			return;
+			break;
+
+		if (calc_crc && id < 64 && (filter & BIT(id)))
+			crc = crc32_be(crc, pos - 2, elen + 2);
 
 		switch (id) {
 		case WLAN_EID_SSID:
@@ -575,8 +562,10 @@ void ieee802_11_parse_elems(u8 *start, size_t len,
 			elems->cf_params_len = elen;
 			break;
 		case WLAN_EID_TIM:
-			elems->tim = pos;
-			elems->tim_len = elen;
+			if (elen >= sizeof(struct ieee80211_tim_ie)) {
+				elems->tim = (void *)pos;
+				elems->tim_len = elen;
+			}
 			break;
 		case WLAN_EID_IBSS_PARAMS:
 			elems->ibss_params = pos;
@@ -586,15 +575,20 @@ void ieee802_11_parse_elems(u8 *start, size_t len,
 			elems->challenge = pos;
 			elems->challenge_len = elen;
 			break;
-		case WLAN_EID_WPA:
+		case WLAN_EID_VENDOR_SPECIFIC:
 			if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 &&
 			    pos[2] == 0xf2) {
 				/* Microsoft OUI (00:50:F2) */
+
+				if (calc_crc)
+					crc = crc32_be(crc, pos - 2, elen + 2);
+
 				if (pos[3] == 1) {
 					/* OUI Type 1 - WPA IE */
 					elems->wpa = pos;
 					elems->wpa_len = elen;
 				} else if (elen >= 5 && pos[3] == 2) {
+					/* OUI Type 2 - WMM IE */
 					if (pos[4] == 0) {
 						elems->wmm_info = pos;
 						elems->wmm_info_len = elen;
@@ -679,32 +673,70 @@ void ieee802_11_parse_elems(u8 *start, size_t len,
 		left -= elen;
 		pos += elen;
 	}
+
+	return crc;
 }
 
 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_tx_queue_params qparam;
-	int i;
+	int queue;
+	bool use_11b;
+	int aCWmin, aCWmax;
 
 	if (!local->ops->conf_tx)
 		return;
 
 	memset(&qparam, 0, sizeof(qparam));
 
-	qparam.aifs = 2;
-
-	if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
-	    !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE))
-		qparam.cw_min = 31;
-	else
-		qparam.cw_min = 15;
+	use_11b = (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ) &&
+		 !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE);
 
-	qparam.cw_max = 1023;
-	qparam.txop = 0;
+	for (queue = 0; queue < local_to_hw(local)->queues; queue++) {
+		/* Set defaults according to 802.11-2007 Table 7-37 */
+		aCWmax = 1023;
+		if (use_11b)
+			aCWmin = 31;
+		else
+			aCWmin = 15;
+
+		switch (queue) {
+		case 3: /* AC_BK */
+			qparam.cw_max = aCWmax;
+			qparam.cw_min = aCWmin;
+			qparam.txop = 0;
+			qparam.aifs = 7;
+			break;
+		default: /* never happens but let's not leave undefined */
+		case 2: /* AC_BE */
+			qparam.cw_max = aCWmax;
+			qparam.cw_min = aCWmin;
+			qparam.txop = 0;
+			qparam.aifs = 3;
+			break;
+		case 1: /* AC_VI */
+			qparam.cw_max = aCWmin;
+			qparam.cw_min = (aCWmin + 1) / 2 - 1;
+			if (use_11b)
+				qparam.txop = 6016/32;
+			else
+				qparam.txop = 3008/32;
+			qparam.aifs = 2;
+			break;
+		case 0: /* AC_VO */
+			qparam.cw_max = (aCWmin + 1) / 2 - 1;
+			qparam.cw_min = (aCWmin + 1) / 4 - 1;
+			if (use_11b)
+				qparam.txop = 3264/32;
+			else
+				qparam.txop = 1504/32;
+			qparam.aifs = 2;
+			break;
+		}
 
-	for (i = 0; i < local_to_hw(local)->queues; i++)
-		local->ops->conf_tx(local_to_hw(local), i, &qparam);
+		drv_conf_tx(local, queue, &qparam);
+	}
 }
 
 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
@@ -742,31 +774,6 @@ void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
 	dev_queue_xmit(skb);
 }
 
-int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freqMHz)
-{
-	int ret = -EINVAL;
-	struct ieee80211_channel *chan;
-	struct ieee80211_local *local = sdata->local;
-
-	chan = ieee80211_get_channel(local->hw.wiphy, freqMHz);
-
-	if (chan && !(chan->flags & IEEE80211_CHAN_DISABLED)) {
-		if (sdata->vif.type == NL80211_IFTYPE_ADHOC &&
-		    chan->flags & IEEE80211_CHAN_NO_IBSS)
-			return ret;
-		local->oper_channel = chan;
-		local->oper_channel_type = NL80211_CHAN_NO_HT;
-
-		if (local->sw_scanning || local->hw_scanning)
-			ret = 0;
-		else
-			ret = ieee80211_hw_config(
-				local, IEEE80211_CONF_CHANGE_CHANNEL);
-	}
-
-	return ret;
-}
-
 u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
 			      enum ieee80211_band band)
 {
@@ -831,16 +838,73 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
 	ieee80211_tx_skb(sdata, skb, encrypt);
 }
 
+int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
+			     const u8 *ie, size_t ie_len)
+{
+	struct ieee80211_supported_band *sband;
+	u8 *pos, *supp_rates_len, *esupp_rates_len = NULL;
+	int i;
+
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
+	pos = buffer;
+
+	*pos++ = WLAN_EID_SUPP_RATES;
+	supp_rates_len = pos;
+	*pos++ = 0;
+
+	for (i = 0; i < sband->n_bitrates; i++) {
+		struct ieee80211_rate *rate = &sband->bitrates[i];
+
+		if (esupp_rates_len) {
+			*esupp_rates_len += 1;
+		} else if (*supp_rates_len == 8) {
+			*pos++ = WLAN_EID_EXT_SUPP_RATES;
+			esupp_rates_len = pos;
+			*pos++ = 1;
+		} else
+			*supp_rates_len += 1;
+
+		*pos++ = rate->bitrate / 5;
+	}
+
+	if (sband->ht_cap.ht_supported) {
+		__le16 tmp = cpu_to_le16(sband->ht_cap.cap);
+
+		*pos++ = WLAN_EID_HT_CAPABILITY;
+		*pos++ = sizeof(struct ieee80211_ht_cap);
+		memset(pos, 0, sizeof(struct ieee80211_ht_cap));
+		memcpy(pos, &tmp, sizeof(u16));
+		pos += sizeof(u16);
+		/* TODO: needs a define here for << 2 */
+		*pos++ = sband->ht_cap.ampdu_factor |
+			 (sband->ht_cap.ampdu_density << 2);
+		memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs));
+		pos += sizeof(sband->ht_cap.mcs);
+		pos += 2 + 4 + 1; /* ext info, BF cap, antsel */
+	}
+
+	/*
+	 * If adding more here, adjust code in main.c
+	 * that calculates local->scan_ies_len.
+	 */
+
+	if (ie) {
+		memcpy(pos, ie, ie_len);
+		pos += ie_len;
+	}
+
+	return pos - buffer;
+}
+
 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
-			      u8 *ssid, size_t ssid_len,
-			      u8 *ie, size_t ie_len)
+			      const u8 *ssid, size_t ssid_len,
+			      const u8 *ie, size_t ie_len)
 {
 	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_supported_band *sband;
 	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
-	u8 *pos, *supp_rates, *esupp_rates = NULL;
-	int i;
+	u8 *pos;
 
 	skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200 +
 			    ie_len);
@@ -867,31 +931,9 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
 	*pos++ = WLAN_EID_SSID;
 	*pos++ = ssid_len;
 	memcpy(pos, ssid, ssid_len);
+	pos += ssid_len;
 
-	supp_rates = skb_put(skb, 2);
-	supp_rates[0] = WLAN_EID_SUPP_RATES;
-	supp_rates[1] = 0;
-	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
-	for (i = 0; i < sband->n_bitrates; i++) {
-		struct ieee80211_rate *rate = &sband->bitrates[i];
-		if (esupp_rates) {
-			pos = skb_put(skb, 1);
-			esupp_rates[1]++;
-		} else if (supp_rates[1] == 8) {
-			esupp_rates = skb_put(skb, 3);
-			esupp_rates[0] = WLAN_EID_EXT_SUPP_RATES;
-			esupp_rates[1] = 1;
-			pos = &esupp_rates[2];
-		} else {
-			pos = skb_put(skb, 1);
-			supp_rates[1]++;
-		}
-		*pos = rate->bitrate / 5;
-	}
-
-	if (ie)
-		memcpy(skb_put(skb, ie_len), ie, ie_len);
+	skb_put(skb, ieee80211_build_preq_ies(local, pos, ie, ie_len));
 
 	ieee80211_tx_skb(sdata, skb, 0);
 }
@@ -931,3 +973,151 @@ u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
 	}
 	return supp_rates;
 }
+
+int ieee80211_reconfig(struct ieee80211_local *local)
+{
+	struct ieee80211_hw *hw = &local->hw;
+	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_if_init_conf conf;
+	struct sta_info *sta;
+	unsigned long flags;
+	int res;
+	bool from_suspend = local->suspended;
+
+	/*
+	 * We're going to start the hardware, at that point
+	 * we are no longer suspended and can RX frames.
+	 */
+	local->suspended = false;
+
+	/* restart hardware */
+	if (local->open_count) {
+		res = drv_start(local);
+
+		ieee80211_led_radio(local, true);
+	}
+
+	/* add interfaces */
+	list_for_each_entry(sdata, &local->interfaces, list) {
+		if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
+		    sdata->vif.type != NL80211_IFTYPE_MONITOR &&
+		    netif_running(sdata->dev)) {
+			conf.vif = &sdata->vif;
+			conf.type = sdata->vif.type;
+			conf.mac_addr = sdata->dev->dev_addr;
+			res = drv_add_interface(local, &conf);
+		}
+	}
+
+	/* add STAs back */
+	if (local->ops->sta_notify) {
+		spin_lock_irqsave(&local->sta_lock, flags);
+		list_for_each_entry(sta, &local->sta_list, list) {
+			sdata = sta->sdata;
+			if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+				sdata = container_of(sdata->bss,
+					     struct ieee80211_sub_if_data,
+					     u.ap);
+
+			drv_sta_notify(local, &sdata->vif, STA_NOTIFY_ADD,
+				       &sta->sta);
+		}
+		spin_unlock_irqrestore(&local->sta_lock, flags);
+	}
+
+	/* Clear Suspend state so that ADDBA requests can be processed */
+
+	rcu_read_lock();
+
+	if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) {
+		list_for_each_entry_rcu(sta, &local->sta_list, list) {
+			clear_sta_flags(sta, WLAN_STA_SUSPEND);
+		}
+	}
+
+	rcu_read_unlock();
+
+	/* setup RTS threshold */
+	drv_set_rts_threshold(local, hw->wiphy->rts_threshold);
+
+	/* reconfigure hardware */
+	ieee80211_hw_config(local, ~0);
+
+	netif_addr_lock_bh(local->mdev);
+	ieee80211_configure_filter(local);
+	netif_addr_unlock_bh(local->mdev);
+
+	/* Finally also reconfigure all the BSS information */
+	list_for_each_entry(sdata, &local->interfaces, list) {
+		u32 changed = ~0;
+		if (!netif_running(sdata->dev))
+			continue;
+		switch (sdata->vif.type) {
+		case NL80211_IFTYPE_STATION:
+			/* disable beacon change bits */
+			changed &= ~(BSS_CHANGED_BEACON |
+				     BSS_CHANGED_BEACON_ENABLED);
+			/* fall through */
+		case NL80211_IFTYPE_ADHOC:
+		case NL80211_IFTYPE_AP:
+		case NL80211_IFTYPE_MESH_POINT:
+			ieee80211_bss_info_change_notify(sdata, changed);
+			break;
+		case NL80211_IFTYPE_WDS:
+			break;
+		case NL80211_IFTYPE_AP_VLAN:
+		case NL80211_IFTYPE_MONITOR:
+			/* ignore virtual */
+			break;
+		case NL80211_IFTYPE_UNSPECIFIED:
+		case __NL80211_IFTYPE_AFTER_LAST:
+			WARN_ON(1);
+			break;
+		}
+	}
+
+	/* add back keys */
+	list_for_each_entry(sdata, &local->interfaces, list)
+		if (netif_running(sdata->dev))
+			ieee80211_enable_keys(sdata);
+
+	ieee80211_wake_queues_by_reason(hw,
+			IEEE80211_QUEUE_STOP_REASON_SUSPEND);
+
+	/*
+	 * If this is for hw restart things are still running.
+	 * We may want to change that later, however.
+	 */
+	if (!from_suspend)
+		return 0;
+
+#ifdef CONFIG_PM
+	local->suspended = false;
+
+	list_for_each_entry(sdata, &local->interfaces, list) {
+		switch(sdata->vif.type) {
+		case NL80211_IFTYPE_STATION:
+			ieee80211_sta_restart(sdata);
+			break;
+		case NL80211_IFTYPE_ADHOC:
+			ieee80211_ibss_restart(sdata);
+			break;
+		case NL80211_IFTYPE_MESH_POINT:
+			ieee80211_mesh_restart(sdata);
+			break;
+		default:
+			break;
+		}
+	}
+
+	add_timer(&local->sta_cleanup);
+
+	spin_lock_irqsave(&local->sta_lock, flags);
+	list_for_each_entry(sta, &local->sta_list, list)
+		mesh_plink_restart(sta);
+	spin_unlock_irqrestore(&local->sta_lock, flags);
+#else
+	WARN_ON(1);
+#endif
+	return 0;
+}
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 959aa8379ccf..1da81f456744 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -27,100 +27,6 @@
 #include "aes_ccm.h"
 
 
-static int ieee80211_set_encryption(struct ieee80211_sub_if_data *sdata, u8 *sta_addr,
-				    int idx, int alg, int remove,
-				    int set_tx_key, const u8 *_key,
-				    size_t key_len)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct sta_info *sta;
-	struct ieee80211_key *key;
-	int err;
-
-	if (alg == ALG_AES_CMAC) {
-		if (idx < NUM_DEFAULT_KEYS ||
-		    idx >= NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) {
-			printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d "
-			       "(BIP)\n", sdata->dev->name, idx);
-			return -EINVAL;
-		}
-	} else if (idx < 0 || idx >= NUM_DEFAULT_KEYS) {
-		printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n",
-		       sdata->dev->name, idx);
-		return -EINVAL;
-	}
-
-	if (remove) {
-		rcu_read_lock();
-
-		err = 0;
-
-		if (is_broadcast_ether_addr(sta_addr)) {
-			key = sdata->keys[idx];
-		} else {
-			sta = sta_info_get(local, sta_addr);
-			if (!sta) {
-				err = -ENOENT;
-				goto out_unlock;
-			}
-			key = sta->key;
-		}
-
-		ieee80211_key_free(key);
-	} else {
-		key = ieee80211_key_alloc(alg, idx, key_len, _key);
-		if (!key)
-			return -ENOMEM;
-
-		sta = NULL;
-		err = 0;
-
-		rcu_read_lock();
-
-		if (!is_broadcast_ether_addr(sta_addr)) {
-			set_tx_key = 0;
-			/*
-			 * According to the standard, the key index of a
-			 * pairwise key must be zero. However, some AP are
-			 * broken when it comes to WEP key indices, so we
-			 * work around this.
-			 */
-			if (idx != 0 && alg != ALG_WEP) {
-				ieee80211_key_free(key);
-				err = -EINVAL;
-				goto out_unlock;
-			}
-
-			sta = sta_info_get(local, sta_addr);
-			if (!sta) {
-				ieee80211_key_free(key);
-				err = -ENOENT;
-				goto out_unlock;
-			}
-		}
-
-		if (alg == ALG_WEP &&
-			key_len != LEN_WEP40 && key_len != LEN_WEP104) {
-			ieee80211_key_free(key);
-			err = -EINVAL;
-			goto out_unlock;
-		}
-
-		ieee80211_key_link(key, sdata, sta);
-
-		if (set_tx_key || (!sta && !sdata->default_key && key))
-			ieee80211_set_default_key(sdata, idx);
-		if (alg == ALG_AES_CMAC &&
-		    (set_tx_key || (!sta && !sdata->default_mgmt_key && key)))
-			ieee80211_set_default_mgmt_key(sdata, idx);
-	}
-
- out_unlock:
-	rcu_read_unlock();
-
-	return err;
-}
-
 static int ieee80211_ioctl_siwgenie(struct net_device *dev,
 				    struct iw_request_info *info,
 				    struct iw_point *data, char *extra)
@@ -131,11 +37,13 @@ static int ieee80211_ioctl_siwgenie(struct net_device *dev,
 
 	if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 		int ret = ieee80211_sta_set_extra_ie(sdata, extra, data->length);
-		if (ret)
+		if (ret && ret != -EALREADY)
 			return ret;
 		sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
 		sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME;
-		ieee80211_sta_req_auth(sdata);
+		sdata->u.mgd.flags &= ~IEEE80211_STA_CONTROL_PORT;
+		if (ret != -EALREADY)
+			ieee80211_sta_req_auth(sdata);
 		return 0;
 	}
 
@@ -147,34 +55,54 @@ static int ieee80211_ioctl_siwfreq(struct net_device *dev,
 				   struct iw_freq *freq, char *extra)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_channel *chan;
 
 	if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
-		sdata->u.ibss.flags &= ~IEEE80211_IBSS_AUTO_CHANNEL_SEL;
+		return cfg80211_ibss_wext_siwfreq(dev, info, freq, extra);
 	else if (sdata->vif.type == NL80211_IFTYPE_STATION)
 		sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
 
 	/* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
 	if (freq->e == 0) {
 		if (freq->m < 0) {
-			if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
-				sdata->u.ibss.flags |=
-					IEEE80211_IBSS_AUTO_CHANNEL_SEL;
-			else if (sdata->vif.type == NL80211_IFTYPE_STATION)
+			if (sdata->vif.type == NL80211_IFTYPE_STATION)
 				sdata->u.mgd.flags |=
 					IEEE80211_STA_AUTO_CHANNEL_SEL;
 			return 0;
 		} else
-			return ieee80211_set_freq(sdata,
+			chan = ieee80211_get_channel(local->hw.wiphy,
 				ieee80211_channel_to_frequency(freq->m));
 	} else {
 		int i, div = 1000000;
 		for (i = 0; i < freq->e; i++)
 			div /= 10;
-		if (div > 0)
-			return ieee80211_set_freq(sdata, freq->m / div);
-		else
+		if (div <= 0)
 			return -EINVAL;
+		chan = ieee80211_get_channel(local->hw.wiphy, freq->m / div);
 	}
+
+	if (!chan)
+		return -EINVAL;
+
+	if (chan->flags & IEEE80211_CHAN_DISABLED)
+		return -EINVAL;
+
+	/*
+	 * no change except maybe auto -> fixed, ignore the HT
+	 * setting so you can fix a channel you're on already
+	 */
+	if (local->oper_channel == chan)
+		return 0;
+
+	if (sdata->vif.type == NL80211_IFTYPE_STATION)
+		ieee80211_sta_req_auth(sdata);
+
+	local->oper_channel = chan;
+	local->oper_channel_type = NL80211_CHAN_NO_HT;
+	ieee80211_hw_config(local, 0);
+
+	return 0;
 }
 
 
@@ -183,8 +111,12 @@ static int ieee80211_ioctl_giwfreq(struct net_device *dev,
 				   struct iw_freq *freq, char *extra)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
-	freq->m = local->hw.conf.channel->center_freq;
+	if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+		return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
+
+	freq->m = local->oper_channel->center_freq;
 	freq->e = 6;
 
 	return 0;
@@ -195,15 +127,17 @@ static int ieee80211_ioctl_siwessid(struct net_device *dev,
 				    struct iw_request_info *info,
 				    struct iw_point *data, char *ssid)
 {
-	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	size_t len = data->length;
 	int ret;
 
+	if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+		return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
+
 	/* iwconfig uses nul termination in SSID.. */
 	if (len > 0 && ssid[len - 1] == '\0')
 		len--;
 
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 		if (data->flags)
 			sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
@@ -215,10 +149,10 @@ static int ieee80211_ioctl_siwessid(struct net_device *dev,
 			return ret;
 
 		sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME;
+		sdata->u.mgd.flags &= ~IEEE80211_STA_CONTROL_PORT;
 		ieee80211_sta_req_auth(sdata);
 		return 0;
-	} else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
-		return ieee80211_ibss_set_ssid(sdata, ssid, len);
+	}
 
 	return -EOPNOTSUPP;
 }
@@ -229,9 +163,13 @@ static int ieee80211_ioctl_giwessid(struct net_device *dev,
 				    struct iw_point *data, char *ssid)
 {
 	size_t len;
-
 	struct ieee80211_sub_if_data *sdata;
+
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+	if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+		return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
+
 	if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 		int res = ieee80211_sta_get_ssid(sdata, ssid, &len);
 		if (res == 0) {
@@ -240,14 +178,6 @@ static int ieee80211_ioctl_giwessid(struct net_device *dev,
 		} else
 			data->flags = 0;
 		return res;
-	} else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
-		int res = ieee80211_ibss_get_ssid(sdata, ssid, &len);
-		if (res == 0) {
-			data->length = len;
-			data->flags = 1;
-		} else
-			data->flags = 0;
-		return res;
 	}
 
 	return -EOPNOTSUPP;
@@ -258,9 +188,11 @@ static int ieee80211_ioctl_siwap(struct net_device *dev,
 				 struct iw_request_info *info,
 				 struct sockaddr *ap_addr, char *extra)
 {
-	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+	if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+		return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
 
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 		int ret;
 
@@ -275,18 +207,9 @@ static int ieee80211_ioctl_siwap(struct net_device *dev,
 		if (ret)
 			return ret;
 		sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME;
+		sdata->u.mgd.flags &= ~IEEE80211_STA_CONTROL_PORT;
 		ieee80211_sta_req_auth(sdata);
 		return 0;
-	} else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
-		if (is_zero_ether_addr((u8 *) &ap_addr->sa_data))
-			sdata->u.ibss.flags |= IEEE80211_IBSS_AUTO_BSSID_SEL |
-					       IEEE80211_IBSS_AUTO_CHANNEL_SEL;
-		else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
-			sdata->u.ibss.flags |= IEEE80211_IBSS_AUTO_BSSID_SEL;
-		else
-			sdata->u.ibss.flags &= ~IEEE80211_IBSS_AUTO_BSSID_SEL;
-
-		return ieee80211_ibss_set_bssid(sdata, (u8 *) &ap_addr->sa_data);
 	} else if (sdata->vif.type == NL80211_IFTYPE_WDS) {
 		/*
 		 * If it is necessary to update the WDS peer address
@@ -312,9 +235,11 @@ static int ieee80211_ioctl_giwap(struct net_device *dev,
 				 struct iw_request_info *info,
 				 struct sockaddr *ap_addr, char *extra)
 {
-	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+	if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+		return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
 
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 		if (sdata->u.mgd.state == IEEE80211_STA_MLME_ASSOCIATED) {
 			ap_addr->sa_family = ARPHRD_ETHER;
@@ -322,13 +247,6 @@ static int ieee80211_ioctl_giwap(struct net_device *dev,
 		} else
 			memset(&ap_addr->sa_data, 0, ETH_ALEN);
 		return 0;
-	} else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
-		if (sdata->u.ibss.state == IEEE80211_IBSS_MLME_JOINED) {
-			ap_addr->sa_family = ARPHRD_ETHER;
-			memcpy(&ap_addr->sa_data, sdata->u.ibss.bssid, ETH_ALEN);
-		} else
-			memset(&ap_addr->sa_data, 0, ETH_ALEN);
-		return 0;
 	} else if (sdata->vif.type == NL80211_IFTYPE_WDS) {
 		ap_addr->sa_family = ARPHRD_ETHER;
 		memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
@@ -411,334 +329,6 @@ static int ieee80211_ioctl_giwrate(struct net_device *dev,
 	return 0;
 }
 
-static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
-				      struct iw_request_info *info,
-				      union iwreq_data *data, char *extra)
-{
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct ieee80211_channel* chan = local->hw.conf.channel;
-	bool reconf = false;
-	u32 reconf_flags = 0;
-	int new_power_level;
-
-	if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
-		return -EINVAL;
-	if (data->txpower.flags & IW_TXPOW_RANGE)
-		return -EINVAL;
-	if (!chan)
-		return -EINVAL;
-
-	/* only change when not disabling */
-	if (!data->txpower.disabled) {
-		if (data->txpower.fixed) {
-			if (data->txpower.value < 0)
-				return -EINVAL;
-			new_power_level = data->txpower.value;
-			/*
-			 * Debatable, but we cannot do a fixed power
-			 * level above the regulatory constraint.
-			 * Use "iwconfig wlan0 txpower 15dBm" instead.
-			 */
-			if (new_power_level > chan->max_power)
-				return -EINVAL;
-		} else {
-			/*
-			 * Automatic power level setting, max being the value
-			 * passed in from userland.
-			 */
-			if (data->txpower.value < 0)
-				new_power_level = -1;
-			else
-				new_power_level = data->txpower.value;
-		}
-
-		reconf = true;
-
-		/*
-		 * ieee80211_hw_config() will limit to the channel's
-		 * max power and possibly power constraint from AP.
-		 */
-		local->user_power_level = new_power_level;
-	}
-
-	if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
-		local->hw.conf.radio_enabled = !(data->txpower.disabled);
-		reconf_flags |= IEEE80211_CONF_CHANGE_RADIO_ENABLED;
-		ieee80211_led_radio(local, local->hw.conf.radio_enabled);
-	}
-
-	if (reconf || reconf_flags)
-		ieee80211_hw_config(local, reconf_flags);
-
-	return 0;
-}
-
-static int ieee80211_ioctl_giwtxpower(struct net_device *dev,
-				   struct iw_request_info *info,
-				   union iwreq_data *data, char *extra)
-{
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
-	data->txpower.fixed = 1;
-	data->txpower.disabled = !(local->hw.conf.radio_enabled);
-	data->txpower.value = local->hw.conf.power_level;
-	data->txpower.flags = IW_TXPOW_DBM;
-
-	return 0;
-}
-
-static int ieee80211_ioctl_siwrts(struct net_device *dev,
-				  struct iw_request_info *info,
-				  struct iw_param *rts, char *extra)
-{
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
-	if (rts->disabled)
-		local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
-	else if (!rts->fixed)
-		/* if the rts value is not fixed, then take default */
-		local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
-	else if (rts->value < 0 || rts->value > IEEE80211_MAX_RTS_THRESHOLD)
-		return -EINVAL;
-	else
-		local->rts_threshold = rts->value;
-
-	/* If the wlan card performs RTS/CTS in hardware/firmware,
-	 * configure it here */
-
-	if (local->ops->set_rts_threshold)
-		local->ops->set_rts_threshold(local_to_hw(local),
-					     local->rts_threshold);
-
-	return 0;
-}
-
-static int ieee80211_ioctl_giwrts(struct net_device *dev,
-				  struct iw_request_info *info,
-				  struct iw_param *rts, char *extra)
-{
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
-	rts->value = local->rts_threshold;
-	rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD);
-	rts->fixed = 1;
-
-	return 0;
-}
-
-
-static int ieee80211_ioctl_siwfrag(struct net_device *dev,
-				   struct iw_request_info *info,
-				   struct iw_param *frag, char *extra)
-{
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
-	if (frag->disabled)
-		local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
-	else if (!frag->fixed)
-		local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
-	else if (frag->value < 256 ||
-		 frag->value > IEEE80211_MAX_FRAG_THRESHOLD)
-		return -EINVAL;
-	else {
-		/* Fragment length must be even, so strip LSB. */
-		local->fragmentation_threshold = frag->value & ~0x1;
-	}
-
-	return 0;
-}
-
-static int ieee80211_ioctl_giwfrag(struct net_device *dev,
-				   struct iw_request_info *info,
-				   struct iw_param *frag, char *extra)
-{
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
-	frag->value = local->fragmentation_threshold;
-	frag->disabled = (frag->value >= IEEE80211_MAX_FRAG_THRESHOLD);
-	frag->fixed = 1;
-
-	return 0;
-}
-
-
-static int ieee80211_ioctl_siwretry(struct net_device *dev,
-				    struct iw_request_info *info,
-				    struct iw_param *retry, char *extra)
-{
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
-	if (retry->disabled ||
-	    (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
-		return -EINVAL;
-
-	if (retry->flags & IW_RETRY_MAX) {
-		local->hw.conf.long_frame_max_tx_count = retry->value;
-	} else if (retry->flags & IW_RETRY_MIN) {
-		local->hw.conf.short_frame_max_tx_count = retry->value;
-	} else {
-		local->hw.conf.long_frame_max_tx_count = retry->value;
-		local->hw.conf.short_frame_max_tx_count = retry->value;
-	}
-
-	ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
-
-	return 0;
-}
-
-
-static int ieee80211_ioctl_giwretry(struct net_device *dev,
-				    struct iw_request_info *info,
-				    struct iw_param *retry, char *extra)
-{
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
-	retry->disabled = 0;
-	if (retry->flags == 0 || retry->flags & IW_RETRY_MIN) {
-		/* first return min value, iwconfig will ask max value
-		 * later if needed */
-		retry->flags |= IW_RETRY_LIMIT;
-		retry->value = local->hw.conf.short_frame_max_tx_count;
-		if (local->hw.conf.long_frame_max_tx_count !=
-		    local->hw.conf.short_frame_max_tx_count)
-			retry->flags |= IW_RETRY_MIN;
-		return 0;
-	}
-	if (retry->flags & IW_RETRY_MAX) {
-		retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
-		retry->value = local->hw.conf.long_frame_max_tx_count;
-	}
-
-	return 0;
-}
-
-static int ieee80211_ioctl_siwmlme(struct net_device *dev,
-				   struct iw_request_info *info,
-				   struct iw_point *data, char *extra)
-{
-	struct ieee80211_sub_if_data *sdata;
-	struct iw_mlme *mlme = (struct iw_mlme *) extra;
-
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	if (!(sdata->vif.type == NL80211_IFTYPE_STATION))
-		return -EINVAL;
-
-	switch (mlme->cmd) {
-	case IW_MLME_DEAUTH:
-		/* TODO: mlme->addr.sa_data */
-		return ieee80211_sta_deauthenticate(sdata, mlme->reason_code);
-	case IW_MLME_DISASSOC:
-		/* TODO: mlme->addr.sa_data */
-		return ieee80211_sta_disassociate(sdata, mlme->reason_code);
-	default:
-		return -EOPNOTSUPP;
-	}
-}
-
-
-static int ieee80211_ioctl_siwencode(struct net_device *dev,
-				     struct iw_request_info *info,
-				     struct iw_point *erq, char *keybuf)
-{
-	struct ieee80211_sub_if_data *sdata;
-	int idx, i, alg = ALG_WEP;
-	u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
-	int remove = 0, ret;
-
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
-	idx = erq->flags & IW_ENCODE_INDEX;
-	if (idx == 0) {
-		if (sdata->default_key)
-			for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
-				if (sdata->default_key == sdata->keys[i]) {
-					idx = i;
-					break;
-				}
-			}
-	} else if (idx < 1 || idx > 4)
-		return -EINVAL;
-	else
-		idx--;
-
-	if (erq->flags & IW_ENCODE_DISABLED)
-		remove = 1;
-	else if (erq->length == 0) {
-		/* No key data - just set the default TX key index */
-		ieee80211_set_default_key(sdata, idx);
-		return 0;
-	}
-
-	ret = ieee80211_set_encryption(
-		sdata, bcaddr,
-		idx, alg, remove,
-		!sdata->default_key,
-		keybuf, erq->length);
-
-	if (!ret) {
-		if (remove)
-			sdata->u.mgd.flags &= ~IEEE80211_STA_TKIP_WEP_USED;
-		else
-			sdata->u.mgd.flags |= IEEE80211_STA_TKIP_WEP_USED;
-	}
-
-	return ret;
-}
-
-
-static int ieee80211_ioctl_giwencode(struct net_device *dev,
-				     struct iw_request_info *info,
-				     struct iw_point *erq, char *key)
-{
-	struct ieee80211_sub_if_data *sdata;
-	int idx, i;
-
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
-	idx = erq->flags & IW_ENCODE_INDEX;
-	if (idx < 1 || idx > 4) {
-		idx = -1;
-		if (!sdata->default_key)
-			idx = 0;
-		else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
-			if (sdata->default_key == sdata->keys[i]) {
-				idx = i;
-				break;
-			}
-		}
-		if (idx < 0)
-			return -EINVAL;
-	} else
-		idx--;
-
-	erq->flags = idx + 1;
-
-	if (!sdata->keys[idx]) {
-		erq->length = 0;
-		erq->flags |= IW_ENCODE_DISABLED;
-		return 0;
-	}
-
-	memcpy(key, sdata->keys[idx]->conf.key,
-	       min_t(int, erq->length, sdata->keys[idx]->conf.keylen));
-	erq->length = sdata->keys[idx]->conf.keylen;
-	erq->flags |= IW_ENCODE_ENABLED;
-
-	if (sdata->vif.type == NL80211_IFTYPE_STATION) {
-		switch (sdata->u.mgd.auth_alg) {
-		case WLAN_AUTH_OPEN:
-		case WLAN_AUTH_LEAP:
-			erq->flags |= IW_ENCODE_OPEN;
-			break;
-		case WLAN_AUTH_SHARED_KEY:
-			erq->flags |= IW_ENCODE_RESTRICTED;
-			break;
-		}
-	}
-
-	return 0;
-}
-
 static int ieee80211_ioctl_siwpower(struct net_device *dev,
 				    struct iw_request_info *info,
 				    struct iw_param *wrq,
@@ -747,7 +337,7 @@ static int ieee80211_ioctl_siwpower(struct net_device *dev,
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	struct ieee80211_conf *conf = &local->hw.conf;
-	int ret = 0, timeout = 0;
+	int timeout = 0;
 	bool ps;
 
 	if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
@@ -779,42 +369,18 @@ static int ieee80211_ioctl_siwpower(struct net_device *dev,
 		timeout = wrq->value / 1000;
 
  set:
-	if (ps == local->powersave && timeout == conf->dynamic_ps_timeout)
-		return ret;
+	if (ps == sdata->u.mgd.powersave && timeout == conf->dynamic_ps_timeout)
+		return 0;
 
-	local->powersave = ps;
+	sdata->u.mgd.powersave = ps;
 	conf->dynamic_ps_timeout = timeout;
 
 	if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
-		ret = ieee80211_hw_config(local,
-					  IEEE80211_CONF_CHANGE_DYNPS_TIMEOUT);
+		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
 
-	if (!(sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED))
-		return ret;
+	ieee80211_recalc_ps(local, -1);
 
-	if (conf->dynamic_ps_timeout > 0 &&
-	    !(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)) {
-		mod_timer(&local->dynamic_ps_timer, jiffies +
-			  msecs_to_jiffies(conf->dynamic_ps_timeout));
-	} else {
-		if (local->powersave) {
-			if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
-				ieee80211_send_nullfunc(local, sdata, 1);
-			conf->flags |= IEEE80211_CONF_PS;
-			ret = ieee80211_hw_config(local,
-					IEEE80211_CONF_CHANGE_PS);
-		} else {
-			conf->flags &= ~IEEE80211_CONF_PS;
-			ret = ieee80211_hw_config(local,
-					IEEE80211_CONF_CHANGE_PS);
-			if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
-				ieee80211_send_nullfunc(local, sdata, 0);
-			del_timer_sync(&local->dynamic_ps_timer);
-			cancel_work_sync(&local->dynamic_ps_enable_work);
-		}
-	}
-
-	return ret;
+	return 0;
 }
 
 static int ieee80211_ioctl_giwpower(struct net_device *dev,
@@ -822,9 +388,9 @@ static int ieee80211_ioctl_giwpower(struct net_device *dev,
 				    union iwreq_data *wrqu,
 				    char *extra)
 {
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
-	wrqu->power.disabled = !local->powersave;
+	wrqu->power.disabled = !sdata->u.mgd.powersave;
 
 	return 0;
 }
@@ -997,82 +563,6 @@ static int ieee80211_ioctl_giwauth(struct net_device *dev,
 }
 
 
-static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
-					struct iw_request_info *info,
-					struct iw_point *erq, char *extra)
-{
-	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
-	int uninitialized_var(alg), idx, i, remove = 0;
-
-	switch (ext->alg) {
-	case IW_ENCODE_ALG_NONE:
-		remove = 1;
-		break;
-	case IW_ENCODE_ALG_WEP:
-		alg = ALG_WEP;
-		break;
-	case IW_ENCODE_ALG_TKIP:
-		alg = ALG_TKIP;
-		break;
-	case IW_ENCODE_ALG_CCMP:
-		alg = ALG_CCMP;
-		break;
-	case IW_ENCODE_ALG_AES_CMAC:
-		alg = ALG_AES_CMAC;
-		break;
-	default:
-		return -EOPNOTSUPP;
-	}
-
-	if (erq->flags & IW_ENCODE_DISABLED)
-		remove = 1;
-
-	idx = erq->flags & IW_ENCODE_INDEX;
-	if (alg == ALG_AES_CMAC) {
-		if (idx < NUM_DEFAULT_KEYS + 1 ||
-		    idx > NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) {
-			idx = -1;
-			if (!sdata->default_mgmt_key)
-				idx = 0;
-			else for (i = NUM_DEFAULT_KEYS;
-				  i < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS;
-				  i++) {
-				if (sdata->default_mgmt_key == sdata->keys[i])
-				{
-					idx = i;
-					break;
-				}
-			}
-			if (idx < 0)
-				return -EINVAL;
-		} else
-			idx--;
-	} else {
-		if (idx < 1 || idx > 4) {
-			idx = -1;
-			if (!sdata->default_key)
-				idx = 0;
-			else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
-				if (sdata->default_key == sdata->keys[i]) {
-					idx = i;
-					break;
-				}
-			}
-			if (idx < 0)
-				return -EINVAL;
-		} else
-			idx--;
-	}
-
-	return ieee80211_set_encryption(sdata, ext->addr.sa_data, idx, alg,
-					remove,
-					ext->ext_flags &
-					IW_ENCODE_EXT_SET_TX_KEY,
-					ext->key, ext->key_len);
-}
-
-
 /* Structures to export the Wireless Handlers */
 
 static const iw_handler ieee80211_handler[] =
@@ -1099,7 +589,7 @@ static const iw_handler ieee80211_handler[] =
 	(iw_handler) NULL,				/* SIOCGIWTHRSPY */
 	(iw_handler) ieee80211_ioctl_siwap,		/* SIOCSIWAP */
 	(iw_handler) ieee80211_ioctl_giwap,		/* SIOCGIWAP */
-	(iw_handler) ieee80211_ioctl_siwmlme,		/* SIOCSIWMLME */
+	(iw_handler) cfg80211_wext_siwmlme,		/* SIOCSIWMLME */
 	(iw_handler) NULL,				/* SIOCGIWAPLIST */
 	(iw_handler) cfg80211_wext_siwscan,		/* SIOCSIWSCAN */
 	(iw_handler) cfg80211_wext_giwscan,		/* SIOCGIWSCAN */
@@ -1111,16 +601,16 @@ static const iw_handler ieee80211_handler[] =
 	(iw_handler) NULL,				/* -- hole -- */
 	(iw_handler) ieee80211_ioctl_siwrate,		/* SIOCSIWRATE */
 	(iw_handler) ieee80211_ioctl_giwrate,		/* SIOCGIWRATE */
-	(iw_handler) ieee80211_ioctl_siwrts,		/* SIOCSIWRTS */
-	(iw_handler) ieee80211_ioctl_giwrts,		/* SIOCGIWRTS */
-	(iw_handler) ieee80211_ioctl_siwfrag,		/* SIOCSIWFRAG */
-	(iw_handler) ieee80211_ioctl_giwfrag,		/* SIOCGIWFRAG */
-	(iw_handler) ieee80211_ioctl_siwtxpower,	/* SIOCSIWTXPOW */
-	(iw_handler) ieee80211_ioctl_giwtxpower,	/* SIOCGIWTXPOW */
-	(iw_handler) ieee80211_ioctl_siwretry,		/* SIOCSIWRETRY */
-	(iw_handler) ieee80211_ioctl_giwretry,		/* SIOCGIWRETRY */
-	(iw_handler) ieee80211_ioctl_siwencode,		/* SIOCSIWENCODE */
-	(iw_handler) ieee80211_ioctl_giwencode,		/* SIOCGIWENCODE */
+	(iw_handler) cfg80211_wext_siwrts,		/* SIOCSIWRTS */
+	(iw_handler) cfg80211_wext_giwrts,		/* SIOCGIWRTS */
+	(iw_handler) cfg80211_wext_siwfrag,		/* SIOCSIWFRAG */
+	(iw_handler) cfg80211_wext_giwfrag,		/* SIOCGIWFRAG */
+	(iw_handler) cfg80211_wext_siwtxpower,		/* SIOCSIWTXPOW */
+	(iw_handler) cfg80211_wext_giwtxpower,		/* SIOCGIWTXPOW */
+	(iw_handler) cfg80211_wext_siwretry,		/* SIOCSIWRETRY */
+	(iw_handler) cfg80211_wext_giwretry,		/* SIOCGIWRETRY */
+	(iw_handler) cfg80211_wext_siwencode,		/* SIOCSIWENCODE */
+	(iw_handler) cfg80211_wext_giwencode,		/* SIOCGIWENCODE */
 	(iw_handler) ieee80211_ioctl_siwpower,		/* SIOCSIWPOWER */
 	(iw_handler) ieee80211_ioctl_giwpower,		/* SIOCGIWPOWER */
 	(iw_handler) NULL,				/* -- hole -- */
@@ -1129,7 +619,7 @@ static const iw_handler ieee80211_handler[] =
 	(iw_handler) NULL,				/* SIOCGIWGENIE */
 	(iw_handler) ieee80211_ioctl_siwauth,		/* SIOCSIWAUTH */
 	(iw_handler) ieee80211_ioctl_giwauth,		/* SIOCGIWAUTH */
-	(iw_handler) ieee80211_ioctl_siwencodeext,	/* SIOCSIWENCODEEXT */
+	(iw_handler) cfg80211_wext_siwencodeext,	/* SIOCSIWENCODEEXT */
 	(iw_handler) NULL,				/* SIOCGIWENCODEEXT */
 	(iw_handler) NULL,				/* SIOCSIWPMKSA */
 	(iw_handler) NULL,				/* -- hole -- */
diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index 0b8ad1f4ecdd..116a923b14d6 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -23,34 +23,6 @@
  */
 const int ieee802_1d_to_ac[8] = { 2, 3, 3, 2, 1, 1, 0, 0 };
 
-static const char llc_ip_hdr[8] = {0xAA, 0xAA, 0x3, 0, 0, 0, 0x08, 0};
-
-/* Given a data frame determine the 802.1p/1d tag to use.  */
-static unsigned int classify_1d(struct sk_buff *skb)
-{
-	unsigned int dscp;
-
-	/* skb->priority values from 256->263 are magic values to
-	 * directly indicate a specific 802.1d priority.  This is used
-	 * to allow 802.1d priority to be passed directly in from VLAN
-	 * tags, etc.
-	 */
-	if (skb->priority >= 256 && skb->priority <= 263)
-		return skb->priority - 256;
-
-	switch (skb->protocol) {
-	case htons(ETH_P_IP):
-		dscp = ip_hdr(skb)->tos & 0xfc;
-		break;
-
-	default:
-		return 0;
-	}
-
-	return dscp >> 5;
-}
-
-
 static int wme_downgrade_ac(struct sk_buff *skb)
 {
 	switch (skb->priority) {
@@ -94,7 +66,7 @@ static u16 classify80211(struct ieee80211_local *local, struct sk_buff *skb)
 
 	/* use the data classifier to determine what 802.1d tag the
 	 * data frame has */
-	skb->priority = classify_1d(skb);
+	skb->priority = cfg80211_classify8021d(skb);
 
 	/* in case we are a client verify acm is not set for this ac */
 	while (unlikely(local->wmm_acm & BIT(skb->priority))) {
@@ -129,11 +101,11 @@ u16 ieee80211_select_queue(struct net_device *dev, struct sk_buff *skb)
 	 * Now we know the 1d priority, fill in the QoS header if
 	 * there is one (and we haven't done this before).
 	 */
-	if (!skb->requeue && ieee80211_is_data_qos(hdr->frame_control)) {
+	if (ieee80211_is_data_qos(hdr->frame_control)) {
 		u8 *p = ieee80211_get_qos_ctl(hdr);
 		u8 ack_policy = 0;
 		tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
-		if (local->wifi_wme_noack_test)
+		if (unlikely(local->wifi_wme_noack_test))
 			ack_policy |= QOS_CONTROL_ACK_POLICY_NOACK <<
 					QOS_CONTROL_ACK_POLICY_SHIFT;
 		/* qos header is 2 bytes, second reserved */
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index 4f8bfea278f2..dcfae8884b86 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -122,7 +122,7 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_rx_data *rx)
 			return RX_DROP_UNUSABLE;
 
 		mac80211_ev_michael_mic_failure(rx->sdata, rx->key->conf.keyidx,
-						(void *) skb->data);
+						(void *) skb->data, NULL);
 		return RX_DROP_UNUSABLE;
 	}
 
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index cb3ad741ebf8..634d14affc8d 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -327,7 +327,7 @@ config NETFILTER_XT_TARGET_CONNMARK
 
 	  If you want to compile it as a module, say M here and read
 	  <file:Documentation/kbuild/modules.txt>.  The module will be called
-	  ipt_CONNMARK.ko.  If unsure, say `N'.
+	  ipt_CONNMARK.  If unsure, say `N'.
 
 config NETFILTER_XT_TARGET_CONNSECMARK
 	tristate '"CONNSECMARK" target support'
@@ -584,7 +584,7 @@ config NETFILTER_XT_MATCH_CONNMARK
 
 	  If you want to compile it as a module, say M here and read
 	  <file:Documentation/kbuild/modules.txt>.  The module will be called
-	  ipt_connmark.ko.  If unsure, say `N'.
+	  ipt_connmark.  If unsure, say `N'.
 
 config NETFILTER_XT_MATCH_CONNTRACK
 	tristate '"conntrack" connection tracking match support'
@@ -917,6 +917,19 @@ config NETFILTER_XT_MATCH_U32
 
 	  Details and examples are in the kernel module source.
 
+config NETFILTER_XT_MATCH_OSF
+	tristate '"osf" Passive OS fingerprint match'
+	depends on NETFILTER_ADVANCED && NETFILTER_NETLINK
+	help
+	  This option selects the Passive OS Fingerprinting match module
+	  that allows to passively match the remote operating system by
+	  analyzing incoming TCP SYN packets.
+
+	  Rules and loading software can be downloaded from
+	  http://www.ioremap.net/projects/osf
+
+	  To compile it as a module, choose M here.  If unsure, say N.
+
 endif # NETFILTER_XTABLES
 
 endmenu
diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile
index 6282060fbda9..49f62ee4e9ff 100644
--- a/net/netfilter/Makefile
+++ b/net/netfilter/Makefile
@@ -77,6 +77,7 @@ obj-$(CONFIG_NETFILTER_XT_MATCH_LIMIT) += xt_limit.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_MAC) += xt_mac.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_MARK) += xt_mark.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_MULTIPORT) += xt_multiport.o
+obj-$(CONFIG_NETFILTER_XT_MATCH_OSF) += xt_osf.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_OWNER) += xt_owner.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_PHYSDEV) += xt_physdev.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_PKTTYPE) += xt_pkttype.o
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index e01061f49cdc..7c1333c67ff3 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -3345,22 +3345,8 @@ static struct genl_ops ip_vs_genl_ops[] __read_mostly = {
 
 static int __init ip_vs_genl_register(void)
 {
-	int ret, i;
-
-	ret = genl_register_family(&ip_vs_genl_family);
-	if (ret)
-		return ret;
-
-	for (i = 0; i < ARRAY_SIZE(ip_vs_genl_ops); i++) {
-		ret = genl_register_ops(&ip_vs_genl_family, &ip_vs_genl_ops[i]);
-		if (ret)
-			goto err_out;
-	}
-	return 0;
-
-err_out:
-	genl_unregister_family(&ip_vs_genl_family);
-	return ret;
+	return genl_register_family_with_ops(&ip_vs_genl_family,
+		ip_vs_genl_ops, ARRAY_SIZE(ip_vs_genl_ops));
 }
 
 static void ip_vs_genl_unregister(void)
diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c
index 425ab144f15d..5874657af7f2 100644
--- a/net/netfilter/ipvs/ip_vs_xmit.c
+++ b/net/netfilter/ipvs/ip_vs_xmit.c
@@ -260,8 +260,8 @@ ip_vs_bypass_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 	ip_send_check(ip_hdr(skb));
 
 	/* drop old route */
-	dst_release(skb->dst);
-	skb->dst = &rt->u.dst;
+	skb_dst_drop(skb);
+	skb_dst_set(skb, &rt->u.dst);
 
 	/* Another hack: avoid icmp_send in ip_fragment */
 	skb->local_df = 1;
@@ -324,8 +324,8 @@ ip_vs_bypass_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
 	}
 
 	/* drop old route */
-	dst_release(skb->dst);
-	skb->dst = &rt->u.dst;
+	skb_dst_drop(skb);
+	skb_dst_set(skb, &rt->u.dst);
 
 	/* Another hack: avoid icmp_send in ip_fragment */
 	skb->local_df = 1;
@@ -388,8 +388,8 @@ ip_vs_nat_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 		goto tx_error_put;
 
 	/* drop old route */
-	dst_release(skb->dst);
-	skb->dst = &rt->u.dst;
+	skb_dst_drop(skb);
+	skb_dst_set(skb, &rt->u.dst);
 
 	/* mangle the packet */
 	if (pp->dnat_handler && !pp->dnat_handler(skb, pp, cp))
@@ -465,8 +465,8 @@ ip_vs_nat_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
 		goto tx_error_put;
 
 	/* drop old route */
-	dst_release(skb->dst);
-	skb->dst = &rt->u.dst;
+	skb_dst_drop(skb);
+	skb_dst_set(skb, &rt->u.dst);
 
 	/* mangle the packet */
 	if (pp->dnat_handler && !pp->dnat_handler(skb, pp, cp))
@@ -553,8 +553,8 @@ ip_vs_tunnel_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 		IP_VS_DBG_RL("ip_vs_tunnel_xmit(): mtu less than 68\n");
 		goto tx_error;
 	}
-	if (skb->dst)
-		skb->dst->ops->update_pmtu(skb->dst, mtu);
+	if (skb_dst(skb))
+		skb_dst(skb)->ops->update_pmtu(skb_dst(skb), mtu);
 
 	df |= (old_iph->frag_off & htons(IP_DF));
 
@@ -596,8 +596,8 @@ ip_vs_tunnel_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 	memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
 
 	/* drop old route */
-	dst_release(skb->dst);
-	skb->dst = &rt->u.dst;
+	skb_dst_drop(skb);
+	skb_dst_set(skb, &rt->u.dst);
 
 	/*
 	 *	Push down and install the IPIP header.
@@ -665,8 +665,8 @@ ip_vs_tunnel_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
 		IP_VS_DBG_RL("ip_vs_tunnel_xmit_v6(): mtu less than 1280\n");
 		goto tx_error;
 	}
-	if (skb->dst)
-		skb->dst->ops->update_pmtu(skb->dst, mtu);
+	if (skb_dst(skb))
+		skb_dst(skb)->ops->update_pmtu(skb_dst(skb), mtu);
 
 	if (mtu < ntohs(old_iph->payload_len) + sizeof(struct ipv6hdr)) {
 		icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu, skb->dev);
@@ -702,8 +702,8 @@ ip_vs_tunnel_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
 	memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
 
 	/* drop old route */
-	dst_release(skb->dst);
-	skb->dst = &rt->u.dst;
+	skb_dst_drop(skb);
+	skb_dst_set(skb, &rt->u.dst);
 
 	/*
 	 *	Push down and install the IPIP header.
@@ -775,8 +775,8 @@ ip_vs_dr_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 	ip_send_check(ip_hdr(skb));
 
 	/* drop old route */
-	dst_release(skb->dst);
-	skb->dst = &rt->u.dst;
+	skb_dst_drop(skb);
+	skb_dst_set(skb, &rt->u.dst);
 
 	/* Another hack: avoid icmp_send in ip_fragment */
 	skb->local_df = 1;
@@ -828,8 +828,8 @@ ip_vs_dr_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
 	}
 
 	/* drop old route */
-	dst_release(skb->dst);
-	skb->dst = &rt->u.dst;
+	skb_dst_drop(skb);
+	skb_dst_set(skb, &rt->u.dst);
 
 	/* Another hack: avoid icmp_send in ip_fragment */
 	skb->local_df = 1;
@@ -900,8 +900,8 @@ ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 		goto tx_error_put;
 
 	/* drop the old route when skb is not shared */
-	dst_release(skb->dst);
-	skb->dst = &rt->u.dst;
+	skb_dst_drop(skb);
+	skb_dst_set(skb, &rt->u.dst);
 
 	ip_vs_nat_icmp(skb, pp, cp, 0);
 
@@ -975,8 +975,8 @@ ip_vs_icmp_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
 		goto tx_error_put;
 
 	/* drop the old route when skb is not shared */
-	dst_release(skb->dst);
-	skb->dst = &rt->u.dst;
+	skb_dst_drop(skb);
+	skb_dst_set(skb, &rt->u.dst);
 
 	ip_vs_nat_icmp_v6(skb, pp, cp, 0);
 
diff --git a/net/netfilter/nf_conntrack_acct.c b/net/netfilter/nf_conntrack_acct.c
index 9fe8982bd7c9..4a1d94aac20b 100644
--- a/net/netfilter/nf_conntrack_acct.c
+++ b/net/netfilter/nf_conntrack_acct.c
@@ -116,7 +116,7 @@ int nf_conntrack_acct_init(struct net *net)
 	if (net_eq(net, &init_net)) {
 #ifdef CONFIG_NF_CT_ACCT
 	printk(KERN_WARNING "CONFIG_NF_CT_ACCT is deprecated and will be removed soon. Please use\n");
-		printk(KERN_WARNING "nf_conntrack.acct=1 kernel paramater, acct=1 nf_conntrack module option or\n");
+		printk(KERN_WARNING "nf_conntrack.acct=1 kernel parameter, acct=1 nf_conntrack module option or\n");
 		printk(KERN_WARNING "sysctl net.netfilter.nf_conntrack_acct=1 to enable it.\n");
 #endif
 
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 8020db6274b8..7508f11c5b39 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -39,6 +39,7 @@
 #include <net/netfilter/nf_conntrack_core.h>
 #include <net/netfilter/nf_conntrack_extend.h>
 #include <net/netfilter/nf_conntrack_acct.h>
+#include <net/netfilter/nf_conntrack_ecache.h>
 #include <net/netfilter/nf_nat.h>
 #include <net/netfilter/nf_nat_core.h>
 
@@ -182,10 +183,6 @@ destroy_conntrack(struct nf_conntrack *nfct)
 	NF_CT_ASSERT(atomic_read(&nfct->use) == 0);
 	NF_CT_ASSERT(!timer_pending(&ct->timeout));
 
-	if (!test_bit(IPS_DYING_BIT, &ct->status))
-		nf_conntrack_event(IPCT_DESTROY, ct);
-	set_bit(IPS_DYING_BIT, &ct->status);
-
 	/* To make sure we don't get any weird locking issues here:
 	 * destroy_conntrack() MUST NOT be called with a write lock
 	 * to nf_conntrack_lock!!! -HW */
@@ -219,27 +216,70 @@ destroy_conntrack(struct nf_conntrack *nfct)
 	nf_conntrack_free(ct);
 }
 
-static void death_by_timeout(unsigned long ul_conntrack)
+void nf_ct_delete_from_lists(struct nf_conn *ct)
 {
-	struct nf_conn *ct = (void *)ul_conntrack;
 	struct net *net = nf_ct_net(ct);
-	struct nf_conn_help *help = nfct_help(ct);
-	struct nf_conntrack_helper *helper;
-
-	if (help) {
-		rcu_read_lock();
-		helper = rcu_dereference(help->helper);
-		if (helper && helper->destroy)
-			helper->destroy(ct);
-		rcu_read_unlock();
-	}
 
+	nf_ct_helper_destroy(ct);
 	spin_lock_bh(&nf_conntrack_lock);
 	/* Inside lock so preempt is disabled on module removal path.
 	 * Otherwise we can get spurious warnings. */
 	NF_CT_STAT_INC(net, delete_list);
 	clean_from_lists(ct);
 	spin_unlock_bh(&nf_conntrack_lock);
+}
+EXPORT_SYMBOL_GPL(nf_ct_delete_from_lists);
+
+static void death_by_event(unsigned long ul_conntrack)
+{
+	struct nf_conn *ct = (void *)ul_conntrack;
+	struct net *net = nf_ct_net(ct);
+
+	if (nf_conntrack_event(IPCT_DESTROY, ct) < 0) {
+		/* bad luck, let's retry again */
+		ct->timeout.expires = jiffies +
+			(random32() % net->ct.sysctl_events_retry_timeout);
+		add_timer(&ct->timeout);
+		return;
+	}
+	/* we've got the event delivered, now it's dying */
+	set_bit(IPS_DYING_BIT, &ct->status);
+	spin_lock(&nf_conntrack_lock);
+	hlist_nulls_del(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode);
+	spin_unlock(&nf_conntrack_lock);
+	nf_ct_put(ct);
+}
+
+void nf_ct_insert_dying_list(struct nf_conn *ct)
+{
+	struct net *net = nf_ct_net(ct);
+
+	/* add this conntrack to the dying list */
+	spin_lock_bh(&nf_conntrack_lock);
+	hlist_nulls_add_head(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode,
+			     &net->ct.dying);
+	spin_unlock_bh(&nf_conntrack_lock);
+	/* set a new timer to retry event delivery */
+	setup_timer(&ct->timeout, death_by_event, (unsigned long)ct);
+	ct->timeout.expires = jiffies +
+		(random32() % net->ct.sysctl_events_retry_timeout);
+	add_timer(&ct->timeout);
+}
+EXPORT_SYMBOL_GPL(nf_ct_insert_dying_list);
+
+static void death_by_timeout(unsigned long ul_conntrack)
+{
+	struct nf_conn *ct = (void *)ul_conntrack;
+
+	if (!test_bit(IPS_DYING_BIT, &ct->status) &&
+	    unlikely(nf_conntrack_event(IPCT_DESTROY, ct) < 0)) {
+		/* destroy event was not delivered */
+		nf_ct_delete_from_lists(ct);
+		nf_ct_insert_dying_list(ct);
+		return;
+	}
+	set_bit(IPS_DYING_BIT, &ct->status);
+	nf_ct_delete_from_lists(ct);
 	nf_ct_put(ct);
 }
 
@@ -295,7 +335,8 @@ begin:
 	h = __nf_conntrack_find(net, tuple);
 	if (h) {
 		ct = nf_ct_tuplehash_to_ctrack(h);
-		if (unlikely(!atomic_inc_not_zero(&ct->ct_general.use)))
+		if (unlikely(nf_ct_is_dying(ct) ||
+			     !atomic_inc_not_zero(&ct->ct_general.use)))
 			h = NULL;
 		else {
 			if (unlikely(!nf_ct_tuple_equal(tuple, &h->tuple))) {
@@ -385,7 +426,6 @@ __nf_conntrack_confirm(struct sk_buff *skb)
 	/* Remove from unconfirmed list */
 	hlist_nulls_del_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode);
 
-	__nf_conntrack_hash_insert(ct, hash, repl_hash);
 	/* Timer relative to confirmation time, not original
 	   setting time, otherwise we'd get timer wrap in
 	   weird delay cases. */
@@ -393,16 +433,20 @@ __nf_conntrack_confirm(struct sk_buff *skb)
 	add_timer(&ct->timeout);
 	atomic_inc(&ct->ct_general.use);
 	set_bit(IPS_CONFIRMED_BIT, &ct->status);
+
+	/* Since the lookup is lockless, hash insertion must be done after
+	 * starting the timer and setting the CONFIRMED bit. The RCU barriers
+	 * guarantee that no other CPU can find the conntrack before the above
+	 * stores are visible.
+	 */
+	__nf_conntrack_hash_insert(ct, hash, repl_hash);
 	NF_CT_STAT_INC(net, insert);
 	spin_unlock_bh(&nf_conntrack_lock);
+
 	help = nfct_help(ct);
 	if (help && help->helper)
 		nf_conntrack_event_cache(IPCT_HELPER, ct);
-#ifdef CONFIG_NF_NAT_NEEDED
-	if (test_bit(IPS_SRC_NAT_DONE_BIT, &ct->status) ||
-	    test_bit(IPS_DST_NAT_DONE_BIT, &ct->status))
-		nf_conntrack_event_cache(IPCT_NATINFO, ct);
-#endif
+
 	nf_conntrack_event_cache(master_ct(ct) ?
 				 IPCT_RELATED : IPCT_NEW, ct);
 	return NF_ACCEPT;
@@ -467,7 +511,8 @@ static noinline int early_drop(struct net *net, unsigned int hash)
 			cnt++;
 		}
 
-		if (ct && unlikely(!atomic_inc_not_zero(&ct->ct_general.use)))
+		if (ct && unlikely(nf_ct_is_dying(ct) ||
+				   !atomic_inc_not_zero(&ct->ct_general.use)))
 			ct = NULL;
 		if (ct || cnt >= NF_CT_EVICTION_RANGE)
 			break;
@@ -523,6 +568,7 @@ struct nf_conn *nf_conntrack_alloc(struct net *net,
 		return ERR_PTR(-ENOMEM);
 	}
 
+	spin_lock_init(&ct->lock);
 	atomic_set(&ct->ct_general.use, 1);
 	ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple = *orig;
 	ct->tuplehash[IP_CT_DIR_REPLY].tuple = *repl;
@@ -580,6 +626,7 @@ init_conntrack(struct net *net,
 	}
 
 	nf_ct_acct_ext_add(ct, GFP_ATOMIC);
+	nf_ct_ecache_ext_add(ct, GFP_ATOMIC);
 
 	spin_lock_bh(&nf_conntrack_lock);
 	exp = nf_ct_find_expectation(net, tuple);
@@ -807,13 +854,9 @@ void __nf_ct_refresh_acct(struct nf_conn *ct,
 			  unsigned long extra_jiffies,
 			  int do_acct)
 {
-	int event = 0;
-
 	NF_CT_ASSERT(ct->timeout.data == (unsigned long)ct);
 	NF_CT_ASSERT(skb);
 
-	spin_lock_bh(&nf_conntrack_lock);
-
 	/* Only update if this is not a fixed timeout */
 	if (test_bit(IPS_FIXED_TIMEOUT_BIT, &ct->status))
 		goto acct;
@@ -821,19 +864,14 @@ void __nf_ct_refresh_acct(struct nf_conn *ct,
 	/* If not in hash table, timer will not be active yet */
 	if (!nf_ct_is_confirmed(ct)) {
 		ct->timeout.expires = extra_jiffies;
-		event = IPCT_REFRESH;
 	} else {
 		unsigned long newtime = jiffies + extra_jiffies;
 
 		/* Only update the timeout if the new timeout is at least
 		   HZ jiffies from the old timeout. Need del_timer for race
 		   avoidance (may already be dying). */
-		if (newtime - ct->timeout.expires >= HZ
-		    && del_timer(&ct->timeout)) {
-			ct->timeout.expires = newtime;
-			add_timer(&ct->timeout);
-			event = IPCT_REFRESH;
-		}
+		if (newtime - ct->timeout.expires >= HZ)
+			mod_timer_pending(&ct->timeout, newtime);
 	}
 
 acct:
@@ -842,17 +880,13 @@ acct:
 
 		acct = nf_conn_acct_find(ct);
 		if (acct) {
+			spin_lock_bh(&ct->lock);
 			acct[CTINFO2DIR(ctinfo)].packets++;
 			acct[CTINFO2DIR(ctinfo)].bytes +=
 				skb->len - skb_network_offset(skb);
+			spin_unlock_bh(&ct->lock);
 		}
 	}
-
-	spin_unlock_bh(&nf_conntrack_lock);
-
-	/* must be unlocked when calling event cache */
-	if (event)
-		nf_conntrack_event_cache(event, ct);
 }
 EXPORT_SYMBOL_GPL(__nf_ct_refresh_acct);
 
@@ -864,14 +898,14 @@ bool __nf_ct_kill_acct(struct nf_conn *ct,
 	if (do_acct) {
 		struct nf_conn_counter *acct;
 
-		spin_lock_bh(&nf_conntrack_lock);
 		acct = nf_conn_acct_find(ct);
 		if (acct) {
+			spin_lock_bh(&ct->lock);
 			acct[CTINFO2DIR(ctinfo)].packets++;
 			acct[CTINFO2DIR(ctinfo)].bytes +=
 				skb->len - skb_network_offset(skb);
+			spin_unlock_bh(&ct->lock);
 		}
-		spin_unlock_bh(&nf_conntrack_lock);
 	}
 
 	if (del_timer(&ct->timeout)) {
@@ -1001,15 +1035,22 @@ struct __nf_ct_flush_report {
 	int report;
 };
 
-static int kill_all(struct nf_conn *i, void *data)
+static int kill_report(struct nf_conn *i, void *data)
 {
 	struct __nf_ct_flush_report *fr = (struct __nf_ct_flush_report *)data;
 
-	/* get_next_corpse sets the dying bit for us */
-	nf_conntrack_event_report(IPCT_DESTROY,
-				  i,
-				  fr->pid,
-				  fr->report);
+	/* If we fail to deliver the event, death_by_timeout() will retry */
+	if (nf_conntrack_event_report(IPCT_DESTROY, i,
+				      fr->pid, fr->report) < 0)
+		return 1;
+
+	/* Avoid the delivery of the destroy event in death_by_timeout(). */
+	set_bit(IPS_DYING_BIT, &i->status);
+	return 1;
+}
+
+static int kill_all(struct nf_conn *i, void *data)
+{
 	return 1;
 }
 
@@ -1023,15 +1064,30 @@ void nf_ct_free_hashtable(void *hash, int vmalloced, unsigned int size)
 }
 EXPORT_SYMBOL_GPL(nf_ct_free_hashtable);
 
-void nf_conntrack_flush(struct net *net, u32 pid, int report)
+void nf_conntrack_flush_report(struct net *net, u32 pid, int report)
 {
 	struct __nf_ct_flush_report fr = {
 		.pid 	= pid,
 		.report = report,
 	};
-	nf_ct_iterate_cleanup(net, kill_all, &fr);
+	nf_ct_iterate_cleanup(net, kill_report, &fr);
+}
+EXPORT_SYMBOL_GPL(nf_conntrack_flush_report);
+
+static void nf_ct_release_dying_list(void)
+{
+	struct nf_conntrack_tuple_hash *h;
+	struct nf_conn *ct;
+	struct hlist_nulls_node *n;
+
+	spin_lock_bh(&nf_conntrack_lock);
+	hlist_nulls_for_each_entry(h, n, &init_net.ct.dying, hnnode) {
+		ct = nf_ct_tuplehash_to_ctrack(h);
+		/* never fails to remove them, no listeners at this point */
+		nf_ct_kill(ct);
+	}
+	spin_unlock_bh(&nf_conntrack_lock);
 }
-EXPORT_SYMBOL_GPL(nf_conntrack_flush);
 
 static void nf_conntrack_cleanup_init_net(void)
 {
@@ -1042,10 +1098,9 @@ static void nf_conntrack_cleanup_init_net(void)
 
 static void nf_conntrack_cleanup_net(struct net *net)
 {
-	nf_ct_event_cache_flush(net);
-	nf_conntrack_ecache_fini(net);
  i_see_dead_people:
-	nf_conntrack_flush(net, 0, 0);
+	nf_ct_iterate_cleanup(net, kill_all, NULL);
+	nf_ct_release_dying_list();
 	if (atomic_read(&net->ct.count) != 0) {
 		schedule();
 		goto i_see_dead_people;
@@ -1056,6 +1111,7 @@ static void nf_conntrack_cleanup_net(struct net *net)
 
 	nf_ct_free_hashtable(net->ct.hash, net->ct.hash_vmalloc,
 			     nf_conntrack_htable_size);
+	nf_conntrack_ecache_fini(net);
 	nf_conntrack_acct_fini(net);
 	nf_conntrack_expect_fini(net);
 	free_percpu(net->ct.stat);
@@ -1220,20 +1276,24 @@ err_cache:
 	return ret;
 }
 
+/*
+ * We need to use special "null" values, not used in hash table
+ */
+#define UNCONFIRMED_NULLS_VAL	((1<<30)+0)
+#define DYING_NULLS_VAL		((1<<30)+1)
+
 static int nf_conntrack_init_net(struct net *net)
 {
 	int ret;
 
 	atomic_set(&net->ct.count, 0);
-	INIT_HLIST_NULLS_HEAD(&net->ct.unconfirmed, 0);
+	INIT_HLIST_NULLS_HEAD(&net->ct.unconfirmed, UNCONFIRMED_NULLS_VAL);
+	INIT_HLIST_NULLS_HEAD(&net->ct.dying, DYING_NULLS_VAL);
 	net->ct.stat = alloc_percpu(struct ip_conntrack_stat);
 	if (!net->ct.stat) {
 		ret = -ENOMEM;
 		goto err_stat;
 	}
-	ret = nf_conntrack_ecache_init(net);
-	if (ret < 0)
-		goto err_ecache;
 	net->ct.hash = nf_ct_alloc_hashtable(&nf_conntrack_htable_size,
 					     &net->ct.hash_vmalloc, 1);
 	if (!net->ct.hash) {
@@ -1247,6 +1307,9 @@ static int nf_conntrack_init_net(struct net *net)
 	ret = nf_conntrack_acct_init(net);
 	if (ret < 0)
 		goto err_acct;
+	ret = nf_conntrack_ecache_init(net);
+	if (ret < 0)
+		goto err_ecache;
 
 	/* Set up fake conntrack:
 	    - to never be deleted, not in any hashes */
@@ -1259,14 +1322,14 @@ static int nf_conntrack_init_net(struct net *net)
 
 	return 0;
 
+err_ecache:
+	nf_conntrack_acct_fini(net);
 err_acct:
 	nf_conntrack_expect_fini(net);
 err_expect:
 	nf_ct_free_hashtable(net->ct.hash, net->ct.hash_vmalloc,
 			     nf_conntrack_htable_size);
 err_hash:
-	nf_conntrack_ecache_fini(net);
-err_ecache:
 	free_percpu(net->ct.stat);
 err_stat:
 	return ret;
diff --git a/net/netfilter/nf_conntrack_ecache.c b/net/netfilter/nf_conntrack_ecache.c
index dee4190209cc..aee560b4768d 100644
--- a/net/netfilter/nf_conntrack_ecache.c
+++ b/net/netfilter/nf_conntrack_ecache.c
@@ -16,121 +16,245 @@
 #include <linux/stddef.h>
 #include <linux/err.h>
 #include <linux/percpu.h>
-#include <linux/notifier.h>
 #include <linux/kernel.h>
 #include <linux/netdevice.h>
 
 #include <net/netfilter/nf_conntrack.h>
 #include <net/netfilter/nf_conntrack_core.h>
+#include <net/netfilter/nf_conntrack_extend.h>
 
-ATOMIC_NOTIFIER_HEAD(nf_conntrack_chain);
-EXPORT_SYMBOL_GPL(nf_conntrack_chain);
+static DEFINE_MUTEX(nf_ct_ecache_mutex);
 
-ATOMIC_NOTIFIER_HEAD(nf_ct_expect_chain);
-EXPORT_SYMBOL_GPL(nf_ct_expect_chain);
+struct nf_ct_event_notifier *nf_conntrack_event_cb __read_mostly;
+EXPORT_SYMBOL_GPL(nf_conntrack_event_cb);
+
+struct nf_exp_event_notifier *nf_expect_event_cb __read_mostly;
+EXPORT_SYMBOL_GPL(nf_expect_event_cb);
 
 /* deliver cached events and clear cache entry - must be called with locally
  * disabled softirqs */
-static inline void
-__nf_ct_deliver_cached_events(struct nf_conntrack_ecache *ecache)
+void nf_ct_deliver_cached_events(struct nf_conn *ct)
 {
-	if (nf_ct_is_confirmed(ecache->ct) && !nf_ct_is_dying(ecache->ct)
-	    && ecache->events) {
+	unsigned long events;
+	struct nf_ct_event_notifier *notify;
+	struct nf_conntrack_ecache *e;
+
+	rcu_read_lock();
+	notify = rcu_dereference(nf_conntrack_event_cb);
+	if (notify == NULL)
+		goto out_unlock;
+
+	e = nf_ct_ecache_find(ct);
+	if (e == NULL)
+		goto out_unlock;
+
+	events = xchg(&e->cache, 0);
+
+	if (nf_ct_is_confirmed(ct) && !nf_ct_is_dying(ct) && events) {
 		struct nf_ct_event item = {
-			.ct 	= ecache->ct,
+			.ct	= ct,
 			.pid	= 0,
 			.report	= 0
 		};
+		int ret;
+		/* We make a copy of the missed event cache without taking
+		 * the lock, thus we may send missed events twice. However,
+		 * this does not harm and it happens very rarely. */
+		unsigned long missed = e->missed;
 
-		atomic_notifier_call_chain(&nf_conntrack_chain,
-					   ecache->events,
-					   &item);
+		ret = notify->fcn(events | missed, &item);
+		if (unlikely(ret < 0 || missed)) {
+			spin_lock_bh(&ct->lock);
+			if (ret < 0)
+				e->missed |= events;
+			else
+				e->missed &= ~missed;
+			spin_unlock_bh(&ct->lock);
+		} 
 	}
 
-	ecache->events = 0;
-	nf_ct_put(ecache->ct);
-	ecache->ct = NULL;
+out_unlock:
+	rcu_read_unlock();
 }
+EXPORT_SYMBOL_GPL(nf_ct_deliver_cached_events);
 
-/* Deliver all cached events for a particular conntrack. This is called
- * by code prior to async packet handling for freeing the skb */
-void nf_ct_deliver_cached_events(const struct nf_conn *ct)
+int nf_conntrack_register_notifier(struct nf_ct_event_notifier *new)
 {
-	struct net *net = nf_ct_net(ct);
-	struct nf_conntrack_ecache *ecache;
-
-	local_bh_disable();
-	ecache = per_cpu_ptr(net->ct.ecache, raw_smp_processor_id());
-	if (ecache->ct == ct)
-		__nf_ct_deliver_cached_events(ecache);
-	local_bh_enable();
+	int ret = 0;
+	struct nf_ct_event_notifier *notify;
+
+	mutex_lock(&nf_ct_ecache_mutex);
+	notify = rcu_dereference(nf_conntrack_event_cb);
+	if (notify != NULL) {
+		ret = -EBUSY;
+		goto out_unlock;
+	}
+	rcu_assign_pointer(nf_conntrack_event_cb, new);
+	mutex_unlock(&nf_ct_ecache_mutex);
+	return ret;
+
+out_unlock:
+	mutex_unlock(&nf_ct_ecache_mutex);
+	return ret;
 }
-EXPORT_SYMBOL_GPL(nf_ct_deliver_cached_events);
+EXPORT_SYMBOL_GPL(nf_conntrack_register_notifier);
 
-/* Deliver cached events for old pending events, if current conntrack != old */
-void __nf_ct_event_cache_init(struct nf_conn *ct)
+void nf_conntrack_unregister_notifier(struct nf_ct_event_notifier *new)
 {
-	struct net *net = nf_ct_net(ct);
-	struct nf_conntrack_ecache *ecache;
-
-	/* take care of delivering potentially old events */
-	ecache = per_cpu_ptr(net->ct.ecache, raw_smp_processor_id());
-	BUG_ON(ecache->ct == ct);
-	if (ecache->ct)
-		__nf_ct_deliver_cached_events(ecache);
-	/* initialize for this conntrack/packet */
-	ecache->ct = ct;
-	nf_conntrack_get(&ct->ct_general);
+	struct nf_ct_event_notifier *notify;
+
+	mutex_lock(&nf_ct_ecache_mutex);
+	notify = rcu_dereference(nf_conntrack_event_cb);
+	BUG_ON(notify != new);
+	rcu_assign_pointer(nf_conntrack_event_cb, NULL);
+	mutex_unlock(&nf_ct_ecache_mutex);
 }
-EXPORT_SYMBOL_GPL(__nf_ct_event_cache_init);
+EXPORT_SYMBOL_GPL(nf_conntrack_unregister_notifier);
 
-/* flush the event cache - touches other CPU's data and must not be called
- * while packets are still passing through the code */
-void nf_ct_event_cache_flush(struct net *net)
+int nf_ct_expect_register_notifier(struct nf_exp_event_notifier *new)
 {
-	struct nf_conntrack_ecache *ecache;
-	int cpu;
+	int ret = 0;
+	struct nf_exp_event_notifier *notify;
 
-	for_each_possible_cpu(cpu) {
-		ecache = per_cpu_ptr(net->ct.ecache, cpu);
-		if (ecache->ct)
-			nf_ct_put(ecache->ct);
+	mutex_lock(&nf_ct_ecache_mutex);
+	notify = rcu_dereference(nf_expect_event_cb);
+	if (notify != NULL) {
+		ret = -EBUSY;
+		goto out_unlock;
 	}
+	rcu_assign_pointer(nf_expect_event_cb, new);
+	mutex_unlock(&nf_ct_ecache_mutex);
+	return ret;
+
+out_unlock:
+	mutex_unlock(&nf_ct_ecache_mutex);
+	return ret;
 }
+EXPORT_SYMBOL_GPL(nf_ct_expect_register_notifier);
 
-int nf_conntrack_ecache_init(struct net *net)
+void nf_ct_expect_unregister_notifier(struct nf_exp_event_notifier *new)
 {
-	net->ct.ecache = alloc_percpu(struct nf_conntrack_ecache);
-	if (!net->ct.ecache)
-		return -ENOMEM;
-	return 0;
+	struct nf_exp_event_notifier *notify;
+
+	mutex_lock(&nf_ct_ecache_mutex);
+	notify = rcu_dereference(nf_expect_event_cb);
+	BUG_ON(notify != new);
+	rcu_assign_pointer(nf_expect_event_cb, NULL);
+	mutex_unlock(&nf_ct_ecache_mutex);
 }
+EXPORT_SYMBOL_GPL(nf_ct_expect_unregister_notifier);
 
-void nf_conntrack_ecache_fini(struct net *net)
+#define NF_CT_EVENTS_DEFAULT 1
+static int nf_ct_events __read_mostly = NF_CT_EVENTS_DEFAULT;
+static int nf_ct_events_retry_timeout __read_mostly = 15*HZ;
+
+#ifdef CONFIG_SYSCTL
+static struct ctl_table event_sysctl_table[] = {
+	{
+		.ctl_name	= CTL_UNNUMBERED,
+		.procname	= "nf_conntrack_events",
+		.data		= &init_net.ct.sysctl_events,
+		.maxlen		= sizeof(unsigned int),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec,
+	},
+	{
+		.ctl_name	= CTL_UNNUMBERED,
+		.procname	= "nf_conntrack_events_retry_timeout",
+		.data		= &init_net.ct.sysctl_events_retry_timeout,
+		.maxlen		= sizeof(unsigned int),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec_jiffies,
+	},
+	{}
+};
+#endif /* CONFIG_SYSCTL */
+
+static struct nf_ct_ext_type event_extend __read_mostly = {
+	.len	= sizeof(struct nf_conntrack_ecache),
+	.align	= __alignof__(struct nf_conntrack_ecache),
+	.id	= NF_CT_EXT_ECACHE,
+};
+
+#ifdef CONFIG_SYSCTL
+static int nf_conntrack_event_init_sysctl(struct net *net)
 {
-	free_percpu(net->ct.ecache);
+	struct ctl_table *table;
+
+	table = kmemdup(event_sysctl_table, sizeof(event_sysctl_table),
+			GFP_KERNEL);
+	if (!table)
+		goto out;
+
+	table[0].data = &net->ct.sysctl_events;
+	table[1].data = &net->ct.sysctl_events_retry_timeout;
+
+	net->ct.event_sysctl_header =
+		register_net_sysctl_table(net,
+					  nf_net_netfilter_sysctl_path, table);
+	if (!net->ct.event_sysctl_header) {
+		printk(KERN_ERR "nf_ct_event: can't register to sysctl.\n");
+		goto out_register;
+	}
+	return 0;
+
+out_register:
+	kfree(table);
+out:
+	return -ENOMEM;
 }
 
-int nf_conntrack_register_notifier(struct notifier_block *nb)
+static void nf_conntrack_event_fini_sysctl(struct net *net)
 {
-	return atomic_notifier_chain_register(&nf_conntrack_chain, nb);
+	struct ctl_table *table;
+
+	table = net->ct.event_sysctl_header->ctl_table_arg;
+	unregister_net_sysctl_table(net->ct.event_sysctl_header);
+	kfree(table);
+}
+#else
+static int nf_conntrack_event_init_sysctl(struct net *net)
+{
+	return 0;
 }
-EXPORT_SYMBOL_GPL(nf_conntrack_register_notifier);
 
-int nf_conntrack_unregister_notifier(struct notifier_block *nb)
+static void nf_conntrack_event_fini_sysctl(struct net *net)
 {
-	return atomic_notifier_chain_unregister(&nf_conntrack_chain, nb);
 }
-EXPORT_SYMBOL_GPL(nf_conntrack_unregister_notifier);
+#endif /* CONFIG_SYSCTL */
 
-int nf_ct_expect_register_notifier(struct notifier_block *nb)
+int nf_conntrack_ecache_init(struct net *net)
 {
-	return atomic_notifier_chain_register(&nf_ct_expect_chain, nb);
+	int ret;
+
+	net->ct.sysctl_events = nf_ct_events;
+	net->ct.sysctl_events_retry_timeout = nf_ct_events_retry_timeout;
+
+	if (net_eq(net, &init_net)) {
+		ret = nf_ct_extend_register(&event_extend);
+		if (ret < 0) {
+			printk(KERN_ERR "nf_ct_event: Unable to register "
+					"event extension.\n");
+			goto out_extend_register;
+		}
+	}
+
+	ret = nf_conntrack_event_init_sysctl(net);
+	if (ret < 0)
+		goto out_sysctl;
+
+	return 0;
+
+out_sysctl:
+	if (net_eq(net, &init_net))
+		nf_ct_extend_unregister(&event_extend);
+out_extend_register:
+	return ret;
 }
-EXPORT_SYMBOL_GPL(nf_ct_expect_register_notifier);
 
-int nf_ct_expect_unregister_notifier(struct notifier_block *nb)
+void nf_conntrack_ecache_fini(struct net *net)
 {
-	return atomic_notifier_chain_unregister(&nf_ct_expect_chain, nb);
+	nf_conntrack_event_fini_sysctl(net);
+	if (net_eq(net, &init_net))
+		nf_ct_extend_unregister(&event_extend);
 }
-EXPORT_SYMBOL_GPL(nf_ct_expect_unregister_notifier);
diff --git a/net/netfilter/nf_conntrack_ftp.c b/net/netfilter/nf_conntrack_ftp.c
index 00fecc385f9b..5509dd1f14cf 100644
--- a/net/netfilter/nf_conntrack_ftp.c
+++ b/net/netfilter/nf_conntrack_ftp.c
@@ -338,11 +338,9 @@ static void update_nl_seq(struct nf_conn *ct, u32 nl_seq,
 
 	if (info->seq_aft_nl_num[dir] < NUM_SEQ_TO_REMEMBER) {
 		info->seq_aft_nl[dir][info->seq_aft_nl_num[dir]++] = nl_seq;
-		nf_conntrack_event_cache(IPCT_HELPINFO_VOLATILE, ct);
 	} else if (oldest != NUM_SEQ_TO_REMEMBER &&
 		   after(nl_seq, info->seq_aft_nl[dir][oldest])) {
 		info->seq_aft_nl[dir][oldest] = nl_seq;
-		nf_conntrack_event_cache(IPCT_HELPINFO_VOLATILE, ct);
 	}
 }
 
diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c
index 0fa5a422959f..65c2a7bc3afc 100644
--- a/net/netfilter/nf_conntrack_helper.c
+++ b/net/netfilter/nf_conntrack_helper.c
@@ -136,6 +136,20 @@ static inline int unhelp(struct nf_conntrack_tuple_hash *i,
 	return 0;
 }
 
+void nf_ct_helper_destroy(struct nf_conn *ct)
+{
+	struct nf_conn_help *help = nfct_help(ct);
+	struct nf_conntrack_helper *helper;
+
+	if (help) {
+		rcu_read_lock();
+		helper = rcu_dereference(help->helper);
+		if (helper && helper->destroy)
+			helper->destroy(ct);
+		rcu_read_unlock();
+	}
+}
+
 int nf_conntrack_helper_register(struct nf_conntrack_helper *me)
 {
 	unsigned int h = helper_hash(&me->tuple);
diff --git a/net/netfilter/nf_conntrack_netbios_ns.c b/net/netfilter/nf_conntrack_netbios_ns.c
index 8a3875e36ec2..497b2224536f 100644
--- a/net/netfilter/nf_conntrack_netbios_ns.c
+++ b/net/netfilter/nf_conntrack_netbios_ns.c
@@ -48,7 +48,7 @@ static int help(struct sk_buff *skb, unsigned int protoff,
 {
 	struct nf_conntrack_expect *exp;
 	struct iphdr *iph = ip_hdr(skb);
-	struct rtable *rt = skb->rtable;
+	struct rtable *rt = skb_rtable(skb);
 	struct in_device *in_dev;
 	__be32 mask = 0;
 
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index c523f0b8cee5..49479d194570 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -27,7 +27,6 @@
 #include <linux/netlink.h>
 #include <linux/spinlock.h>
 #include <linux/interrupt.h>
-#include <linux/notifier.h>
 
 #include <linux/netfilter.h>
 #include <net/netlink.h>
@@ -144,7 +143,7 @@ nla_put_failure:
 }
 
 static inline int
-ctnetlink_dump_protoinfo(struct sk_buff *skb, const struct nf_conn *ct)
+ctnetlink_dump_protoinfo(struct sk_buff *skb, struct nf_conn *ct)
 {
 	struct nf_conntrack_l4proto *l4proto;
 	struct nlattr *nest_proto;
@@ -346,23 +345,21 @@ nla_put_failure:
 	return -1;
 }
 
-#define tuple(ct, dir) (&(ct)->tuplehash[dir].tuple)
-
 static int
 ctnetlink_fill_info(struct sk_buff *skb, u32 pid, u32 seq,
-		    int event, int nowait,
-		    const struct nf_conn *ct)
+		    int event, struct nf_conn *ct)
 {
 	struct nlmsghdr *nlh;
 	struct nfgenmsg *nfmsg;
 	struct nlattr *nest_parms;
-	unsigned char *b = skb_tail_pointer(skb);
+	unsigned int flags = pid ? NLM_F_MULTI : 0;
 
 	event |= NFNL_SUBSYS_CTNETLINK << 8;
-	nlh    = NLMSG_PUT(skb, pid, seq, event, sizeof(struct nfgenmsg));
-	nfmsg  = NLMSG_DATA(nlh);
+	nlh = nlmsg_put(skb, pid, seq, event, sizeof(*nfmsg), flags);
+	if (nlh == NULL)
+		goto nlmsg_failure;
 
-	nlh->nlmsg_flags    = (nowait && pid) ? NLM_F_MULTI : 0;
+	nfmsg = nlmsg_data(nlh);
 	nfmsg->nfgen_family = nf_ct_l3num(ct);
 	nfmsg->version      = NFNETLINK_V0;
 	nfmsg->res_id	    = 0;
@@ -370,14 +367,14 @@ ctnetlink_fill_info(struct sk_buff *skb, u32 pid, u32 seq,
 	nest_parms = nla_nest_start(skb, CTA_TUPLE_ORIG | NLA_F_NESTED);
 	if (!nest_parms)
 		goto nla_put_failure;
-	if (ctnetlink_dump_tuples(skb, tuple(ct, IP_CT_DIR_ORIGINAL)) < 0)
+	if (ctnetlink_dump_tuples(skb, nf_ct_tuple(ct, IP_CT_DIR_ORIGINAL)) < 0)
 		goto nla_put_failure;
 	nla_nest_end(skb, nest_parms);
 
 	nest_parms = nla_nest_start(skb, CTA_TUPLE_REPLY | NLA_F_NESTED);
 	if (!nest_parms)
 		goto nla_put_failure;
-	if (ctnetlink_dump_tuples(skb, tuple(ct, IP_CT_DIR_REPLY)) < 0)
+	if (ctnetlink_dump_tuples(skb, nf_ct_tuple(ct, IP_CT_DIR_REPLY)) < 0)
 		goto nla_put_failure;
 	nla_nest_end(skb, nest_parms);
 
@@ -395,132 +392,109 @@ ctnetlink_fill_info(struct sk_buff *skb, u32 pid, u32 seq,
 	    ctnetlink_dump_nat_seq_adj(skb, ct) < 0)
 		goto nla_put_failure;
 
-	nlh->nlmsg_len = skb_tail_pointer(skb) - b;
+	nlmsg_end(skb, nlh);
 	return skb->len;
 
 nlmsg_failure:
 nla_put_failure:
-	nlmsg_trim(skb, b);
+	nlmsg_cancel(skb, nlh);
 	return -1;
 }
 
 #ifdef CONFIG_NF_CONNTRACK_EVENTS
-/*
- * The general structure of a ctnetlink event is
- *
- *  CTA_TUPLE_ORIG
- *    <l3/l4-proto-attributes>
- *  CTA_TUPLE_REPLY
- *    <l3/l4-proto-attributes>
- *  CTA_ID
- *  ...
- *  CTA_PROTOINFO
- *    <l4-proto-attributes>
- *  CTA_TUPLE_MASTER
- *    <l3/l4-proto-attributes>
- *
- * Therefore the formular is
- *
- *   size = sizeof(headers) + sizeof(generic_nlas) + 3 * sizeof(tuple_nlas)
- *		+ sizeof(protoinfo_nlas)
- */
-static struct sk_buff *
-ctnetlink_alloc_skb(const struct nf_conntrack_tuple *tuple, gfp_t gfp)
+static inline size_t
+ctnetlink_proto_size(const struct nf_conn *ct)
 {
 	struct nf_conntrack_l3proto *l3proto;
 	struct nf_conntrack_l4proto *l4proto;
-	int len;
-
-#define NLA_TYPE_SIZE(type)		nla_total_size(sizeof(type))
-
-	/* proto independant part */
-	len = NLMSG_SPACE(sizeof(struct nfgenmsg))
-		+ 3 * nla_total_size(0)		/* CTA_TUPLE_ORIG|REPL|MASTER */
-		+ 3 * nla_total_size(0)		/* CTA_TUPLE_IP */
-		+ 3 * nla_total_size(0)		/* CTA_TUPLE_PROTO */
-		+ 3 * NLA_TYPE_SIZE(u_int8_t)	/* CTA_PROTO_NUM */
-		+ NLA_TYPE_SIZE(u_int32_t)	/* CTA_ID */
-		+ NLA_TYPE_SIZE(u_int32_t)	/* CTA_STATUS */
+	size_t len = 0;
+
+	rcu_read_lock();
+	l3proto = __nf_ct_l3proto_find(nf_ct_l3num(ct));
+	len += l3proto->nla_size;
+
+	l4proto = __nf_ct_l4proto_find(nf_ct_l3num(ct), nf_ct_protonum(ct));
+	len += l4proto->nla_size;
+	rcu_read_unlock();
+
+	return len;
+}
+
+static inline size_t
+ctnetlink_nlmsg_size(const struct nf_conn *ct)
+{
+	return NLMSG_ALIGN(sizeof(struct nfgenmsg))
+	       + 3 * nla_total_size(0) /* CTA_TUPLE_ORIG|REPL|MASTER */
+	       + 3 * nla_total_size(0) /* CTA_TUPLE_IP */
+	       + 3 * nla_total_size(0) /* CTA_TUPLE_PROTO */
+	       + 3 * nla_total_size(sizeof(u_int8_t)) /* CTA_PROTO_NUM */
+	       + nla_total_size(sizeof(u_int32_t)) /* CTA_ID */
+	       + nla_total_size(sizeof(u_int32_t)) /* CTA_STATUS */
 #ifdef CONFIG_NF_CT_ACCT
-		+ 2 * nla_total_size(0)		/* CTA_COUNTERS_ORIG|REPL */
-		+ 2 * NLA_TYPE_SIZE(uint64_t)	/* CTA_COUNTERS_PACKETS */
-		+ 2 * NLA_TYPE_SIZE(uint64_t)	/* CTA_COUNTERS_BYTES */
+	       + 2 * nla_total_size(0) /* CTA_COUNTERS_ORIG|REPL */
+	       + 2 * nla_total_size(sizeof(uint64_t)) /* CTA_COUNTERS_PACKETS */
+	       + 2 * nla_total_size(sizeof(uint64_t)) /* CTA_COUNTERS_BYTES */
 #endif
-		+ NLA_TYPE_SIZE(u_int32_t)	/* CTA_TIMEOUT */
-		+ nla_total_size(0)		/* CTA_PROTOINFO */
-		+ nla_total_size(0)		/* CTA_HELP */
-		+ nla_total_size(NF_CT_HELPER_NAME_LEN)	/* CTA_HELP_NAME */
+	       + nla_total_size(sizeof(u_int32_t)) /* CTA_TIMEOUT */
+	       + nla_total_size(0) /* CTA_PROTOINFO */
+	       + nla_total_size(0) /* CTA_HELP */
+	       + nla_total_size(NF_CT_HELPER_NAME_LEN) /* CTA_HELP_NAME */
 #ifdef CONFIG_NF_CONNTRACK_SECMARK
-		+ NLA_TYPE_SIZE(u_int32_t)	/* CTA_SECMARK */
+	       + nla_total_size(sizeof(u_int32_t)) /* CTA_SECMARK */
 #endif
 #ifdef CONFIG_NF_NAT_NEEDED
-		+ 2 * nla_total_size(0)		/* CTA_NAT_SEQ_ADJ_ORIG|REPL */
-		+ 2 * NLA_TYPE_SIZE(u_int32_t)	/* CTA_NAT_SEQ_CORRECTION_POS */
-		+ 2 * NLA_TYPE_SIZE(u_int32_t)	/* CTA_NAT_SEQ_CORRECTION_BEFORE */
-		+ 2 * NLA_TYPE_SIZE(u_int32_t)	/* CTA_NAT_SEQ_CORRECTION_AFTER */
+	       + 2 * nla_total_size(0) /* CTA_NAT_SEQ_ADJ_ORIG|REPL */
+	       + 6 * nla_total_size(sizeof(u_int32_t)) /* CTA_NAT_SEQ_OFFSET */
 #endif
 #ifdef CONFIG_NF_CONNTRACK_MARK
-		+ NLA_TYPE_SIZE(u_int32_t)	/* CTA_MARK */
+	       + nla_total_size(sizeof(u_int32_t)) /* CTA_MARK */
 #endif
-		;
-
-#undef NLA_TYPE_SIZE
-
-	rcu_read_lock();
-	l3proto = __nf_ct_l3proto_find(tuple->src.l3num);
-	len += l3proto->nla_size;
-
-	l4proto = __nf_ct_l4proto_find(tuple->src.l3num, tuple->dst.protonum);
-	len += l4proto->nla_size;
-	rcu_read_unlock();
-
-	return alloc_skb(len, gfp);
+	       + ctnetlink_proto_size(ct)
+	       ;
 }
 
-static int ctnetlink_conntrack_event(struct notifier_block *this,
-				     unsigned long events, void *ptr)
+static int
+ctnetlink_conntrack_event(unsigned int events, struct nf_ct_event *item)
 {
 	struct nlmsghdr *nlh;
 	struct nfgenmsg *nfmsg;
 	struct nlattr *nest_parms;
-	struct nf_ct_event *item = (struct nf_ct_event *)ptr;
 	struct nf_conn *ct = item->ct;
 	struct sk_buff *skb;
 	unsigned int type;
-	sk_buff_data_t b;
 	unsigned int flags = 0, group;
+	int err;
 
 	/* ignore our fake conntrack entry */
 	if (ct == &nf_conntrack_untracked)
-		return NOTIFY_DONE;
+		return 0;
 
-	if (events & IPCT_DESTROY) {
+	if (events & (1 << IPCT_DESTROY)) {
 		type = IPCTNL_MSG_CT_DELETE;
 		group = NFNLGRP_CONNTRACK_DESTROY;
-	} else  if (events & (IPCT_NEW | IPCT_RELATED)) {
+	} else  if (events & ((1 << IPCT_NEW) | (1 << IPCT_RELATED))) {
 		type = IPCTNL_MSG_CT_NEW;
 		flags = NLM_F_CREATE|NLM_F_EXCL;
 		group = NFNLGRP_CONNTRACK_NEW;
-	} else  if (events & (IPCT_STATUS | IPCT_PROTOINFO)) {
+	} else  if (events) {
 		type = IPCTNL_MSG_CT_NEW;
 		group = NFNLGRP_CONNTRACK_UPDATE;
 	} else
-		return NOTIFY_DONE;
+		return 0;
 
 	if (!item->report && !nfnetlink_has_listeners(group))
-		return NOTIFY_DONE;
+		return 0;
 
-	skb = ctnetlink_alloc_skb(tuple(ct, IP_CT_DIR_ORIGINAL), GFP_ATOMIC);
-	if (!skb)
+	skb = nlmsg_new(ctnetlink_nlmsg_size(ct), GFP_ATOMIC);
+	if (skb == NULL)
 		goto errout;
 
-	b = skb->tail;
-
 	type |= NFNL_SUBSYS_CTNETLINK << 8;
-	nlh   = NLMSG_PUT(skb, item->pid, 0, type, sizeof(struct nfgenmsg));
-	nfmsg = NLMSG_DATA(nlh);
+	nlh = nlmsg_put(skb, item->pid, 0, type, sizeof(*nfmsg), flags);
+	if (nlh == NULL)
+		goto nlmsg_failure;
 
-	nlh->nlmsg_flags    = flags;
+	nfmsg = nlmsg_data(nlh);
 	nfmsg->nfgen_family = nf_ct_l3num(ct);
 	nfmsg->version	= NFNETLINK_V0;
 	nfmsg->res_id	= 0;
@@ -529,14 +503,14 @@ static int ctnetlink_conntrack_event(struct notifier_block *this,
 	nest_parms = nla_nest_start(skb, CTA_TUPLE_ORIG | NLA_F_NESTED);
 	if (!nest_parms)
 		goto nla_put_failure;
-	if (ctnetlink_dump_tuples(skb, tuple(ct, IP_CT_DIR_ORIGINAL)) < 0)
+	if (ctnetlink_dump_tuples(skb, nf_ct_tuple(ct, IP_CT_DIR_ORIGINAL)) < 0)
 		goto nla_put_failure;
 	nla_nest_end(skb, nest_parms);
 
 	nest_parms = nla_nest_start(skb, CTA_TUPLE_REPLY | NLA_F_NESTED);
 	if (!nest_parms)
 		goto nla_put_failure;
-	if (ctnetlink_dump_tuples(skb, tuple(ct, IP_CT_DIR_REPLY)) < 0)
+	if (ctnetlink_dump_tuples(skb, nf_ct_tuple(ct, IP_CT_DIR_REPLY)) < 0)
 		goto nla_put_failure;
 	nla_nest_end(skb, nest_parms);
 
@@ -546,7 +520,7 @@ static int ctnetlink_conntrack_event(struct notifier_block *this,
 	if (ctnetlink_dump_status(skb, ct) < 0)
 		goto nla_put_failure;
 
-	if (events & IPCT_DESTROY) {
+	if (events & (1 << IPCT_DESTROY)) {
 		if (ctnetlink_dump_counters(skb, ct, IP_CT_DIR_ORIGINAL) < 0 ||
 		    ctnetlink_dump_counters(skb, ct, IP_CT_DIR_REPLY) < 0)
 			goto nla_put_failure;
@@ -554,47 +528,51 @@ static int ctnetlink_conntrack_event(struct notifier_block *this,
 		if (ctnetlink_dump_timeout(skb, ct) < 0)
 			goto nla_put_failure;
 
-		if (events & IPCT_PROTOINFO
+		if (events & (1 << IPCT_PROTOINFO)
 		    && ctnetlink_dump_protoinfo(skb, ct) < 0)
 			goto nla_put_failure;
 
-		if ((events & IPCT_HELPER || nfct_help(ct))
+		if ((events & (1 << IPCT_HELPER) || nfct_help(ct))
 		    && ctnetlink_dump_helpinfo(skb, ct) < 0)
 			goto nla_put_failure;
 
 #ifdef CONFIG_NF_CONNTRACK_SECMARK
-		if ((events & IPCT_SECMARK || ct->secmark)
+		if ((events & (1 << IPCT_SECMARK) || ct->secmark)
 		    && ctnetlink_dump_secmark(skb, ct) < 0)
 			goto nla_put_failure;
 #endif
 
-		if (events & IPCT_RELATED &&
+		if (events & (1 << IPCT_RELATED) &&
 		    ctnetlink_dump_master(skb, ct) < 0)
 			goto nla_put_failure;
 
-		if (events & IPCT_NATSEQADJ &&
+		if (events & (1 << IPCT_NATSEQADJ) &&
 		    ctnetlink_dump_nat_seq_adj(skb, ct) < 0)
 			goto nla_put_failure;
 	}
 
 #ifdef CONFIG_NF_CONNTRACK_MARK
-	if ((events & IPCT_MARK || ct->mark)
+	if ((events & (1 << IPCT_MARK) || ct->mark)
 	    && ctnetlink_dump_mark(skb, ct) < 0)
 		goto nla_put_failure;
 #endif
 	rcu_read_unlock();
 
-	nlh->nlmsg_len = skb->tail - b;
-	nfnetlink_send(skb, item->pid, group, item->report);
-	return NOTIFY_DONE;
+	nlmsg_end(skb, nlh);
+	err = nfnetlink_send(skb, item->pid, group, item->report, GFP_ATOMIC);
+	if (err == -ENOBUFS || err == -EAGAIN)
+		return -ENOBUFS;
+
+	return 0;
 
 nla_put_failure:
 	rcu_read_unlock();
+	nlmsg_cancel(skb, nlh);
 nlmsg_failure:
 	kfree_skb(skb);
 errout:
 	nfnetlink_set_err(0, group, -ENOBUFS);
-	return NOTIFY_DONE;
+	return 0;
 }
 #endif /* CONFIG_NF_CONNTRACK_EVENTS */
 
@@ -611,7 +589,7 @@ ctnetlink_dump_table(struct sk_buff *skb, struct netlink_callback *cb)
 	struct nf_conn *ct, *last;
 	struct nf_conntrack_tuple_hash *h;
 	struct hlist_nulls_node *n;
-	struct nfgenmsg *nfmsg = NLMSG_DATA(cb->nlh);
+	struct nfgenmsg *nfmsg = nlmsg_data(cb->nlh);
 	u_int8_t l3proto = nfmsg->nfgen_family;
 
 	rcu_read_lock();
@@ -637,8 +615,7 @@ restart:
 			}
 			if (ctnetlink_fill_info(skb, NETLINK_CB(cb->skb).pid,
 						cb->nlh->nlmsg_seq,
-						IPCTNL_MSG_CT_NEW,
-						1, ct) < 0) {
+						IPCTNL_MSG_CT_NEW, ct) < 0) {
 				cb->args[1] = (unsigned long)ct;
 				goto out;
 			}
@@ -792,7 +769,7 @@ ctnetlink_del_conntrack(struct sock *ctnl, struct sk_buff *skb,
 	struct nf_conntrack_tuple_hash *h;
 	struct nf_conntrack_tuple tuple;
 	struct nf_conn *ct;
-	struct nfgenmsg *nfmsg = NLMSG_DATA(nlh);
+	struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 	u_int8_t u3 = nfmsg->nfgen_family;
 	int err = 0;
 
@@ -802,9 +779,9 @@ ctnetlink_del_conntrack(struct sock *ctnl, struct sk_buff *skb,
 		err = ctnetlink_parse_tuple(cda, &tuple, CTA_TUPLE_REPLY, u3);
 	else {
 		/* Flush the whole table */
-		nf_conntrack_flush(&init_net, 
-				   NETLINK_CB(skb).pid, 
-				   nlmsg_report(nlh));
+		nf_conntrack_flush_report(&init_net,
+					 NETLINK_CB(skb).pid,
+					 nlmsg_report(nlh));
 		return 0;
 	}
 
@@ -825,10 +802,15 @@ ctnetlink_del_conntrack(struct sock *ctnl, struct sk_buff *skb,
 		}
 	}
 
-	nf_conntrack_event_report(IPCT_DESTROY,
-				  ct,
-				  NETLINK_CB(skb).pid,
-				  nlmsg_report(nlh));
+	if (nf_conntrack_event_report(IPCT_DESTROY, ct,
+				      NETLINK_CB(skb).pid,
+				      nlmsg_report(nlh)) < 0) {
+		nf_ct_delete_from_lists(ct);
+		/* we failed to report the event, try later */
+		nf_ct_insert_dying_list(ct);
+		nf_ct_put(ct);
+		return 0;
+	}
 
 	/* death_by_timeout would report the event again */
 	set_bit(IPS_DYING_BIT, &ct->status);
@@ -847,7 +829,7 @@ ctnetlink_get_conntrack(struct sock *ctnl, struct sk_buff *skb,
 	struct nf_conntrack_tuple tuple;
 	struct nf_conn *ct;
 	struct sk_buff *skb2 = NULL;
-	struct nfgenmsg *nfmsg = NLMSG_DATA(nlh);
+	struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 	u_int8_t u3 = nfmsg->nfgen_family;
 	int err = 0;
 
@@ -872,15 +854,15 @@ ctnetlink_get_conntrack(struct sock *ctnl, struct sk_buff *skb,
 	ct = nf_ct_tuplehash_to_ctrack(h);
 
 	err = -ENOMEM;
-	skb2 = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
-	if (!skb2) {
+	skb2 = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+	if (skb2 == NULL) {
 		nf_ct_put(ct);
 		return -ENOMEM;
 	}
 
 	rcu_read_lock();
 	err = ctnetlink_fill_info(skb2, NETLINK_CB(skb).pid, nlh->nlmsg_seq,
-				  IPCTNL_MSG_CT_NEW, 1, ct);
+				  IPCTNL_MSG_CT_NEW, ct);
 	rcu_read_unlock();
 	nf_ct_put(ct);
 	if (err <= 0)
@@ -1280,6 +1262,7 @@ ctnetlink_create_conntrack(struct nlattr *cda[],
 	}
 
 	nf_ct_acct_ext_add(ct, GFP_ATOMIC);
+	nf_ct_ecache_ext_add(ct, GFP_ATOMIC);
 
 #if defined(CONFIG_NF_CONNTRACK_MARK)
 	if (cda[CTA_MARK])
@@ -1325,7 +1308,7 @@ ctnetlink_new_conntrack(struct sock *ctnl, struct sk_buff *skb,
 {
 	struct nf_conntrack_tuple otuple, rtuple;
 	struct nf_conntrack_tuple_hash *h = NULL;
-	struct nfgenmsg *nfmsg = NLMSG_DATA(nlh);
+	struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 	u_int8_t u3 = nfmsg->nfgen_family;
 	int err = 0;
 
@@ -1367,13 +1350,13 @@ ctnetlink_new_conntrack(struct sock *ctnl, struct sk_buff *skb,
 			else
 				events = IPCT_NEW;
 
-			nf_conntrack_event_report(IPCT_STATUS |
-						  IPCT_HELPER |
-						  IPCT_PROTOINFO |
-						  IPCT_NATSEQADJ |
-						  IPCT_MARK | events,
-						  ct, NETLINK_CB(skb).pid,
-						  nlmsg_report(nlh));
+			nf_conntrack_eventmask_report((1 << IPCT_STATUS) |
+						      (1 << IPCT_HELPER) |
+						      (1 << IPCT_PROTOINFO) |
+						      (1 << IPCT_NATSEQADJ) |
+						      (1 << IPCT_MARK) | events,
+						      ct, NETLINK_CB(skb).pid,
+						      nlmsg_report(nlh));
 			nf_ct_put(ct);
 		} else
 			spin_unlock_bh(&nf_conntrack_lock);
@@ -1392,13 +1375,13 @@ ctnetlink_new_conntrack(struct sock *ctnl, struct sk_buff *skb,
 		if (err == 0) {
 			nf_conntrack_get(&ct->ct_general);
 			spin_unlock_bh(&nf_conntrack_lock);
-			nf_conntrack_event_report(IPCT_STATUS |
-						  IPCT_HELPER |
-						  IPCT_PROTOINFO |
-						  IPCT_NATSEQADJ |
-						  IPCT_MARK,
-						  ct, NETLINK_CB(skb).pid,
-						  nlmsg_report(nlh));
+			nf_conntrack_eventmask_report((1 << IPCT_STATUS) |
+						      (1 << IPCT_HELPER) |
+						      (1 << IPCT_PROTOINFO) |
+						      (1 << IPCT_NATSEQADJ) |
+						      (1 << IPCT_MARK),
+						      ct, NETLINK_CB(skb).pid,
+						      nlmsg_report(nlh));
 			nf_ct_put(ct);
 		} else
 			spin_unlock_bh(&nf_conntrack_lock);
@@ -1503,19 +1486,18 @@ nla_put_failure:
 
 static int
 ctnetlink_exp_fill_info(struct sk_buff *skb, u32 pid, u32 seq,
-		    int event,
-		    int nowait,
-		    const struct nf_conntrack_expect *exp)
+			int event, const struct nf_conntrack_expect *exp)
 {
 	struct nlmsghdr *nlh;
 	struct nfgenmsg *nfmsg;
-	unsigned char *b = skb_tail_pointer(skb);
+	unsigned int flags = pid ? NLM_F_MULTI : 0;
 
 	event |= NFNL_SUBSYS_CTNETLINK_EXP << 8;
-	nlh    = NLMSG_PUT(skb, pid, seq, event, sizeof(struct nfgenmsg));
-	nfmsg  = NLMSG_DATA(nlh);
+	nlh = nlmsg_put(skb, pid, seq, event, sizeof(*nfmsg), flags);
+	if (nlh == NULL)
+		goto nlmsg_failure;
 
-	nlh->nlmsg_flags    = (nowait && pid) ? NLM_F_MULTI : 0;
+	nfmsg = nlmsg_data(nlh);
 	nfmsg->nfgen_family = exp->tuple.src.l3num;
 	nfmsg->version	    = NFNETLINK_V0;
 	nfmsg->res_id	    = 0;
@@ -1523,49 +1505,46 @@ ctnetlink_exp_fill_info(struct sk_buff *skb, u32 pid, u32 seq,
 	if (ctnetlink_exp_dump_expect(skb, exp) < 0)
 		goto nla_put_failure;
 
-	nlh->nlmsg_len = skb_tail_pointer(skb) - b;
+	nlmsg_end(skb, nlh);
 	return skb->len;
 
 nlmsg_failure:
 nla_put_failure:
-	nlmsg_trim(skb, b);
+	nlmsg_cancel(skb, nlh);
 	return -1;
 }
 
 #ifdef CONFIG_NF_CONNTRACK_EVENTS
-static int ctnetlink_expect_event(struct notifier_block *this,
-				  unsigned long events, void *ptr)
+static int
+ctnetlink_expect_event(unsigned int events, struct nf_exp_event *item)
 {
 	struct nlmsghdr *nlh;
 	struct nfgenmsg *nfmsg;
-	struct nf_exp_event *item = (struct nf_exp_event *)ptr;
 	struct nf_conntrack_expect *exp = item->exp;
 	struct sk_buff *skb;
 	unsigned int type;
-	sk_buff_data_t b;
 	int flags = 0;
 
-	if (events & IPEXP_NEW) {
+	if (events & (1 << IPEXP_NEW)) {
 		type = IPCTNL_MSG_EXP_NEW;
 		flags = NLM_F_CREATE|NLM_F_EXCL;
 	} else
-		return NOTIFY_DONE;
+		return 0;
 
 	if (!item->report &&
 	    !nfnetlink_has_listeners(NFNLGRP_CONNTRACK_EXP_NEW))
-		return NOTIFY_DONE;
+		return 0;
 
-	skb = alloc_skb(NLMSG_GOODSIZE, GFP_ATOMIC);
-	if (!skb)
+	skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
+	if (skb == NULL)
 		goto errout;
 
-	b = skb->tail;
-
 	type |= NFNL_SUBSYS_CTNETLINK_EXP << 8;
-	nlh   = NLMSG_PUT(skb, item->pid, 0, type, sizeof(struct nfgenmsg));
-	nfmsg = NLMSG_DATA(nlh);
+	nlh = nlmsg_put(skb, item->pid, 0, type, sizeof(*nfmsg), flags);
+	if (nlh == NULL)
+		goto nlmsg_failure;
 
-	nlh->nlmsg_flags    = flags;
+	nfmsg = nlmsg_data(nlh);
 	nfmsg->nfgen_family = exp->tuple.src.l3num;
 	nfmsg->version	    = NFNETLINK_V0;
 	nfmsg->res_id	    = 0;
@@ -1575,17 +1554,19 @@ static int ctnetlink_expect_event(struct notifier_block *this,
 		goto nla_put_failure;
 	rcu_read_unlock();
 
-	nlh->nlmsg_len = skb->tail - b;
-	nfnetlink_send(skb, item->pid, NFNLGRP_CONNTRACK_EXP_NEW, item->report);
-	return NOTIFY_DONE;
+	nlmsg_end(skb, nlh);
+	nfnetlink_send(skb, item->pid, NFNLGRP_CONNTRACK_EXP_NEW,
+		       item->report, GFP_ATOMIC);
+	return 0;
 
 nla_put_failure:
 	rcu_read_unlock();
+	nlmsg_cancel(skb, nlh);
 nlmsg_failure:
 	kfree_skb(skb);
 errout:
 	nfnetlink_set_err(0, 0, -ENOBUFS);
-	return NOTIFY_DONE;
+	return 0;
 }
 #endif
 static int ctnetlink_exp_done(struct netlink_callback *cb)
@@ -1600,7 +1581,7 @@ ctnetlink_exp_dump_table(struct sk_buff *skb, struct netlink_callback *cb)
 {
 	struct net *net = &init_net;
 	struct nf_conntrack_expect *exp, *last;
-	struct nfgenmsg *nfmsg = NLMSG_DATA(cb->nlh);
+	struct nfgenmsg *nfmsg = nlmsg_data(cb->nlh);
 	struct hlist_node *n;
 	u_int8_t l3proto = nfmsg->nfgen_family;
 
@@ -1617,10 +1598,11 @@ restart:
 					continue;
 				cb->args[1] = 0;
 			}
-			if (ctnetlink_exp_fill_info(skb, NETLINK_CB(cb->skb).pid,
+			if (ctnetlink_exp_fill_info(skb,
+						    NETLINK_CB(cb->skb).pid,
 						    cb->nlh->nlmsg_seq,
 						    IPCTNL_MSG_EXP_NEW,
-						    1, exp) < 0) {
+						    exp) < 0) {
 				if (!atomic_inc_not_zero(&exp->use))
 					continue;
 				cb->args[1] = (unsigned long)exp;
@@ -1652,7 +1634,7 @@ ctnetlink_get_expect(struct sock *ctnl, struct sk_buff *skb,
 	struct nf_conntrack_tuple tuple;
 	struct nf_conntrack_expect *exp;
 	struct sk_buff *skb2;
-	struct nfgenmsg *nfmsg = NLMSG_DATA(nlh);
+	struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 	u_int8_t u3 = nfmsg->nfgen_family;
 	int err = 0;
 
@@ -1683,14 +1665,13 @@ ctnetlink_get_expect(struct sock *ctnl, struct sk_buff *skb,
 	}
 
 	err = -ENOMEM;
-	skb2 = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
-	if (!skb2)
+	skb2 = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+	if (skb2 == NULL)
 		goto out;
 
 	rcu_read_lock();
 	err = ctnetlink_exp_fill_info(skb2, NETLINK_CB(skb).pid,
-				      nlh->nlmsg_seq, IPCTNL_MSG_EXP_NEW,
-				      1, exp);
+				      nlh->nlmsg_seq, IPCTNL_MSG_EXP_NEW, exp);
 	rcu_read_unlock();
 	if (err <= 0)
 		goto free;
@@ -1713,7 +1694,7 @@ ctnetlink_del_expect(struct sock *ctnl, struct sk_buff *skb,
 	struct nf_conntrack_expect *exp;
 	struct nf_conntrack_tuple tuple;
 	struct nf_conntrack_helper *h;
-	struct nfgenmsg *nfmsg = NLMSG_DATA(nlh);
+	struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 	struct hlist_node *n, *next;
 	u_int8_t u3 = nfmsg->nfgen_family;
 	unsigned int i;
@@ -1854,7 +1835,7 @@ ctnetlink_new_expect(struct sock *ctnl, struct sk_buff *skb,
 {
 	struct nf_conntrack_tuple tuple;
 	struct nf_conntrack_expect *exp;
-	struct nfgenmsg *nfmsg = NLMSG_DATA(nlh);
+	struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 	u_int8_t u3 = nfmsg->nfgen_family;
 	int err = 0;
 
@@ -1891,12 +1872,12 @@ ctnetlink_new_expect(struct sock *ctnl, struct sk_buff *skb,
 }
 
 #ifdef CONFIG_NF_CONNTRACK_EVENTS
-static struct notifier_block ctnl_notifier = {
-	.notifier_call	= ctnetlink_conntrack_event,
+static struct nf_ct_event_notifier ctnl_notifier = {
+	.fcn = ctnetlink_conntrack_event,
 };
 
-static struct notifier_block ctnl_notifier_exp = {
-	.notifier_call	= ctnetlink_expect_event,
+static struct nf_exp_event_notifier ctnl_notifier_exp = {
+	.fcn = ctnetlink_expect_event,
 };
 #endif
 
diff --git a/net/netfilter/nf_conntrack_proto_dccp.c b/net/netfilter/nf_conntrack_proto_dccp.c
index aee0d6bea309..1b816a2ea813 100644
--- a/net/netfilter/nf_conntrack_proto_dccp.c
+++ b/net/netfilter/nf_conntrack_proto_dccp.c
@@ -25,8 +25,6 @@
 #include <net/netfilter/nf_conntrack_ecache.h>
 #include <net/netfilter/nf_log.h>
 
-static DEFINE_RWLOCK(dccp_lock);
-
 /* Timeouts are based on values from RFC4340:
  *
  * - REQUEST:
@@ -492,7 +490,7 @@ static int dccp_packet(struct nf_conn *ct, const struct sk_buff *skb,
 		return NF_ACCEPT;
 	}
 
-	write_lock_bh(&dccp_lock);
+	spin_lock_bh(&ct->lock);
 
 	role = ct->proto.dccp.role[dir];
 	old_state = ct->proto.dccp.state;
@@ -536,13 +534,13 @@ static int dccp_packet(struct nf_conn *ct, const struct sk_buff *skb,
 		ct->proto.dccp.last_dir = dir;
 		ct->proto.dccp.last_pkt = type;
 
-		write_unlock_bh(&dccp_lock);
+		spin_unlock_bh(&ct->lock);
 		if (LOG_INVALID(net, IPPROTO_DCCP))
 			nf_log_packet(pf, 0, skb, NULL, NULL, NULL,
 				      "nf_ct_dccp: invalid packet ignored ");
 		return NF_ACCEPT;
 	case CT_DCCP_INVALID:
-		write_unlock_bh(&dccp_lock);
+		spin_unlock_bh(&ct->lock);
 		if (LOG_INVALID(net, IPPROTO_DCCP))
 			nf_log_packet(pf, 0, skb, NULL, NULL, NULL,
 				      "nf_ct_dccp: invalid state transition ");
@@ -552,7 +550,7 @@ static int dccp_packet(struct nf_conn *ct, const struct sk_buff *skb,
 	ct->proto.dccp.last_dir = dir;
 	ct->proto.dccp.last_pkt = type;
 	ct->proto.dccp.state = new_state;
-	write_unlock_bh(&dccp_lock);
+	spin_unlock_bh(&ct->lock);
 
 	if (new_state != old_state)
 		nf_conntrack_event_cache(IPCT_PROTOINFO, ct);
@@ -621,36 +619,39 @@ static int dccp_print_tuple(struct seq_file *s,
 			  ntohs(tuple->dst.u.dccp.port));
 }
 
-static int dccp_print_conntrack(struct seq_file *s, const struct nf_conn *ct)
+static int dccp_print_conntrack(struct seq_file *s, struct nf_conn *ct)
 {
 	return seq_printf(s, "%s ", dccp_state_names[ct->proto.dccp.state]);
 }
 
 #if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
 static int dccp_to_nlattr(struct sk_buff *skb, struct nlattr *nla,
-			  const struct nf_conn *ct)
+			  struct nf_conn *ct)
 {
 	struct nlattr *nest_parms;
 
-	read_lock_bh(&dccp_lock);
+	spin_lock_bh(&ct->lock);
 	nest_parms = nla_nest_start(skb, CTA_PROTOINFO_DCCP | NLA_F_NESTED);
 	if (!nest_parms)
 		goto nla_put_failure;
 	NLA_PUT_U8(skb, CTA_PROTOINFO_DCCP_STATE, ct->proto.dccp.state);
 	NLA_PUT_U8(skb, CTA_PROTOINFO_DCCP_ROLE,
 		   ct->proto.dccp.role[IP_CT_DIR_ORIGINAL]);
+	NLA_PUT_BE64(skb, CTA_PROTOINFO_DCCP_HANDSHAKE_SEQ,
+		     cpu_to_be64(ct->proto.dccp.handshake_seq));
 	nla_nest_end(skb, nest_parms);
-	read_unlock_bh(&dccp_lock);
+	spin_unlock_bh(&ct->lock);
 	return 0;
 
 nla_put_failure:
-	read_unlock_bh(&dccp_lock);
+	spin_unlock_bh(&ct->lock);
 	return -1;
 }
 
 static const struct nla_policy dccp_nla_policy[CTA_PROTOINFO_DCCP_MAX + 1] = {
 	[CTA_PROTOINFO_DCCP_STATE]	= { .type = NLA_U8 },
 	[CTA_PROTOINFO_DCCP_ROLE]	= { .type = NLA_U8 },
+	[CTA_PROTOINFO_DCCP_HANDSHAKE_SEQ] = { .type = NLA_U64 },
 };
 
 static int nlattr_to_dccp(struct nlattr *cda[], struct nf_conn *ct)
@@ -674,7 +675,7 @@ static int nlattr_to_dccp(struct nlattr *cda[], struct nf_conn *ct)
 		return -EINVAL;
 	}
 
-	write_lock_bh(&dccp_lock);
+	spin_lock_bh(&ct->lock);
 	ct->proto.dccp.state = nla_get_u8(tb[CTA_PROTOINFO_DCCP_STATE]);
 	if (nla_get_u8(tb[CTA_PROTOINFO_DCCP_ROLE]) == CT_DCCP_ROLE_CLIENT) {
 		ct->proto.dccp.role[IP_CT_DIR_ORIGINAL] = CT_DCCP_ROLE_CLIENT;
@@ -683,7 +684,11 @@ static int nlattr_to_dccp(struct nlattr *cda[], struct nf_conn *ct)
 		ct->proto.dccp.role[IP_CT_DIR_ORIGINAL] = CT_DCCP_ROLE_SERVER;
 		ct->proto.dccp.role[IP_CT_DIR_REPLY] = CT_DCCP_ROLE_CLIENT;
 	}
-	write_unlock_bh(&dccp_lock);
+	if (tb[CTA_PROTOINFO_DCCP_HANDSHAKE_SEQ]) {
+		ct->proto.dccp.handshake_seq =
+		be64_to_cpu(nla_get_be64(tb[CTA_PROTOINFO_DCCP_HANDSHAKE_SEQ]));
+	}
+	spin_unlock_bh(&ct->lock);
 	return 0;
 }
 
diff --git a/net/netfilter/nf_conntrack_proto_gre.c b/net/netfilter/nf_conntrack_proto_gre.c
index 117b80112fcb..a54a0af0edba 100644
--- a/net/netfilter/nf_conntrack_proto_gre.c
+++ b/net/netfilter/nf_conntrack_proto_gre.c
@@ -176,7 +176,7 @@ static bool gre_invert_tuple(struct nf_conntrack_tuple *tuple,
 static bool gre_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff,
 			     struct nf_conntrack_tuple *tuple)
 {
-	struct net *net = dev_net(skb->dev ? skb->dev : skb->dst->dev);
+	struct net *net = dev_net(skb->dev ? skb->dev : skb_dst(skb)->dev);
 	const struct gre_hdr_pptp *pgrehdr;
 	struct gre_hdr_pptp _pgrehdr;
 	__be16 srckey;
@@ -219,8 +219,7 @@ static int gre_print_tuple(struct seq_file *s,
 }
 
 /* print private data for conntrack */
-static int gre_print_conntrack(struct seq_file *s,
-			       const struct nf_conn *ct)
+static int gre_print_conntrack(struct seq_file *s, struct nf_conn *ct)
 {
 	return seq_printf(s, "timeout=%u, stream_timeout=%u ",
 			  (ct->proto.gre.timeout / HZ),
diff --git a/net/netfilter/nf_conntrack_proto_sctp.c b/net/netfilter/nf_conntrack_proto_sctp.c
index 101b4ad9e817..c10e6f36e31e 100644
--- a/net/netfilter/nf_conntrack_proto_sctp.c
+++ b/net/netfilter/nf_conntrack_proto_sctp.c
@@ -25,9 +25,6 @@
 #include <net/netfilter/nf_conntrack_l4proto.h>
 #include <net/netfilter/nf_conntrack_ecache.h>
 
-/* Protects ct->proto.sctp */
-static DEFINE_RWLOCK(sctp_lock);
-
 /* FIXME: Examine ipfilter's timeouts and conntrack transitions more
    closely.  They're more complex. --RR
 
@@ -164,13 +161,13 @@ static int sctp_print_tuple(struct seq_file *s,
 }
 
 /* Print out the private part of the conntrack. */
-static int sctp_print_conntrack(struct seq_file *s, const struct nf_conn *ct)
+static int sctp_print_conntrack(struct seq_file *s, struct nf_conn *ct)
 {
 	enum sctp_conntrack state;
 
-	read_lock_bh(&sctp_lock);
+	spin_lock_bh(&ct->lock);
 	state = ct->proto.sctp.state;
-	read_unlock_bh(&sctp_lock);
+	spin_unlock_bh(&ct->lock);
 
 	return seq_printf(s, "%s ", sctp_conntrack_names[state]);
 }
@@ -318,7 +315,7 @@ static int sctp_packet(struct nf_conn *ct,
 	}
 
 	old_state = new_state = SCTP_CONNTRACK_NONE;
-	write_lock_bh(&sctp_lock);
+	spin_lock_bh(&ct->lock);
 	for_each_sctp_chunk (skb, sch, _sch, offset, dataoff, count) {
 		/* Special cases of Verification tag check (Sec 8.5.1) */
 		if (sch->type == SCTP_CID_INIT) {
@@ -371,7 +368,7 @@ static int sctp_packet(struct nf_conn *ct,
 		if (old_state != new_state)
 			nf_conntrack_event_cache(IPCT_PROTOINFO, ct);
 	}
-	write_unlock_bh(&sctp_lock);
+	spin_unlock_bh(&ct->lock);
 
 	nf_ct_refresh_acct(ct, ctinfo, skb, sctp_timeouts[new_state]);
 
@@ -386,7 +383,7 @@ static int sctp_packet(struct nf_conn *ct,
 	return NF_ACCEPT;
 
 out_unlock:
-	write_unlock_bh(&sctp_lock);
+	spin_unlock_bh(&ct->lock);
 out:
 	return -NF_ACCEPT;
 }
@@ -469,11 +466,11 @@ static bool sctp_new(struct nf_conn *ct, const struct sk_buff *skb,
 #include <linux/netfilter/nfnetlink_conntrack.h>
 
 static int sctp_to_nlattr(struct sk_buff *skb, struct nlattr *nla,
-			  const struct nf_conn *ct)
+			  struct nf_conn *ct)
 {
 	struct nlattr *nest_parms;
 
-	read_lock_bh(&sctp_lock);
+	spin_lock_bh(&ct->lock);
 	nest_parms = nla_nest_start(skb, CTA_PROTOINFO_SCTP | NLA_F_NESTED);
 	if (!nest_parms)
 		goto nla_put_failure;
@@ -488,14 +485,14 @@ static int sctp_to_nlattr(struct sk_buff *skb, struct nlattr *nla,
 		     CTA_PROTOINFO_SCTP_VTAG_REPLY,
 		     ct->proto.sctp.vtag[IP_CT_DIR_REPLY]);
 
-	read_unlock_bh(&sctp_lock);
+	spin_unlock_bh(&ct->lock);
 
 	nla_nest_end(skb, nest_parms);
 
 	return 0;
 
 nla_put_failure:
-	read_unlock_bh(&sctp_lock);
+	spin_unlock_bh(&ct->lock);
 	return -1;
 }
 
@@ -527,13 +524,13 @@ static int nlattr_to_sctp(struct nlattr *cda[], struct nf_conn *ct)
 	    !tb[CTA_PROTOINFO_SCTP_VTAG_REPLY])
 		return -EINVAL;
 
-	write_lock_bh(&sctp_lock);
+	spin_lock_bh(&ct->lock);
 	ct->proto.sctp.state = nla_get_u8(tb[CTA_PROTOINFO_SCTP_STATE]);
 	ct->proto.sctp.vtag[IP_CT_DIR_ORIGINAL] =
 		nla_get_be32(tb[CTA_PROTOINFO_SCTP_VTAG_ORIGINAL]);
 	ct->proto.sctp.vtag[IP_CT_DIR_REPLY] =
 		nla_get_be32(tb[CTA_PROTOINFO_SCTP_VTAG_REPLY]);
-	write_unlock_bh(&sctp_lock);
+	spin_unlock_bh(&ct->lock);
 
 	return 0;
 }
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index 97a6e93d742e..33fc0a443f3d 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -29,9 +29,6 @@
 #include <net/netfilter/ipv4/nf_conntrack_ipv4.h>
 #include <net/netfilter/ipv6/nf_conntrack_ipv6.h>
 
-/* Protects ct->proto.tcp */
-static DEFINE_RWLOCK(tcp_lock);
-
 /* "Be conservative in what you do,
     be liberal in what you accept from others."
     If it's non-zero, we mark only out of window RST segments as INVALID. */
@@ -59,7 +56,7 @@ static const char *const tcp_conntrack_names[] = {
 	"LAST_ACK",
 	"TIME_WAIT",
 	"CLOSE",
-	"LISTEN"
+	"SYN_SENT2",
 };
 
 #define SECS * HZ
@@ -82,6 +79,7 @@ static unsigned int tcp_timeouts[TCP_CONNTRACK_MAX] __read_mostly = {
 	[TCP_CONNTRACK_LAST_ACK]	= 30 SECS,
 	[TCP_CONNTRACK_TIME_WAIT]	= 2 MINS,
 	[TCP_CONNTRACK_CLOSE]		= 10 SECS,
+	[TCP_CONNTRACK_SYN_SENT2]	= 2 MINS,
 };
 
 #define sNO TCP_CONNTRACK_NONE
@@ -93,7 +91,7 @@ static unsigned int tcp_timeouts[TCP_CONNTRACK_MAX] __read_mostly = {
 #define sLA TCP_CONNTRACK_LAST_ACK
 #define sTW TCP_CONNTRACK_TIME_WAIT
 #define sCL TCP_CONNTRACK_CLOSE
-#define sLI TCP_CONNTRACK_LISTEN
+#define sS2 TCP_CONNTRACK_SYN_SENT2
 #define sIV TCP_CONNTRACK_MAX
 #define sIG TCP_CONNTRACK_IGNORE
 
@@ -123,6 +121,7 @@ enum tcp_bit_set {
  *
  * NONE:	initial state
  * SYN_SENT:	SYN-only packet seen
+ * SYN_SENT2:	SYN-only packet seen from reply dir, simultaneous open
  * SYN_RECV:	SYN-ACK packet seen
  * ESTABLISHED:	ACK packet seen
  * FIN_WAIT:	FIN packet seen
@@ -131,26 +130,24 @@ enum tcp_bit_set {
  * TIME_WAIT:	last ACK seen
  * CLOSE:	closed connection (RST)
  *
- * LISTEN state is not used.
- *
  * Packets marked as IGNORED (sIG):
  *	if they may be either invalid or valid
  *	and the receiver may send back a connection
  *	closing RST or a SYN/ACK.
  *
  * Packets marked as INVALID (sIV):
- *	if they are invalid
- *	or we do not support the request (simultaneous open)
+ *	if we regard them as truly invalid packets
  */
 static const u8 tcp_conntracks[2][6][TCP_CONNTRACK_MAX] = {
 	{
 /* ORIGINAL */
-/* 	     sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sLI	*/
-/*syn*/	   { sSS, sSS, sIG, sIG, sIG, sIG, sIG, sSS, sSS, sIV },
+/* 	     sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sS2	*/
+/*syn*/	   { sSS, sSS, sIG, sIG, sIG, sIG, sIG, sSS, sSS, sS2 },
 /*
  *	sNO -> sSS	Initialize a new connection
  *	sSS -> sSS	Retransmitted SYN
- *	sSR -> sIG	Late retransmitted SYN?
+ *	sS2 -> sS2	Late retransmitted SYN
+ *	sSR -> sIG
  *	sES -> sIG	Error: SYNs in window outside the SYN_SENT state
  *			are errors. Receiver will reply with RST
  *			and close the connection.
@@ -161,22 +158,30 @@ static const u8 tcp_conntracks[2][6][TCP_CONNTRACK_MAX] = {
  *	sTW -> sSS	Reopened connection (RFC 1122).
  *	sCL -> sSS
  */
-/* 	     sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sLI	*/
-/*synack*/ { sIV, sIV, sIV, sIV, sIV, sIV, sIV, sIV, sIV, sIV },
+/* 	     sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sS2	*/
+/*synack*/ { sIV, sIV, sIG, sIG, sIG, sIG, sIG, sIG, sIG, sSR },
 /*
- * A SYN/ACK from the client is always invalid:
- *	- either it tries to set up a simultaneous open, which is
- *	  not supported;
- *	- or the firewall has just been inserted between the two hosts
- *	  during the session set-up. The SYN will be retransmitted
- *	  by the true client (or it'll time out).
+ *	sNO -> sIV	Too late and no reason to do anything
+ *	sSS -> sIV	Client can't send SYN and then SYN/ACK
+ *	sS2 -> sSR	SYN/ACK sent to SYN2 in simultaneous open
+ *	sSR -> sIG
+ *	sES -> sIG	Error: SYNs in window outside the SYN_SENT state
+ *			are errors. Receiver will reply with RST
+ *			and close the connection.
+ *			Or we are not in sync and hold a dead connection.
+ *	sFW -> sIG
+ *	sCW -> sIG
+ *	sLA -> sIG
+ *	sTW -> sIG
+ *	sCL -> sIG
  */
-/* 	     sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sLI	*/
+/* 	     sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sS2	*/
 /*fin*/    { sIV, sIV, sFW, sFW, sLA, sLA, sLA, sTW, sCL, sIV },
 /*
  *	sNO -> sIV	Too late and no reason to do anything...
  *	sSS -> sIV	Client migth not send FIN in this state:
  *			we enforce waiting for a SYN/ACK reply first.
+ *	sS2 -> sIV
  *	sSR -> sFW	Close started.
  *	sES -> sFW
  *	sFW -> sLA	FIN seen in both directions, waiting for
@@ -187,11 +192,12 @@ static const u8 tcp_conntracks[2][6][TCP_CONNTRACK_MAX] = {
  *	sTW -> sTW
  *	sCL -> sCL
  */
-/* 	     sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sLI	*/
+/* 	     sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sS2	*/
 /*ack*/	   { sES, sIV, sES, sES, sCW, sCW, sTW, sTW, sCL, sIV },
 /*
  *	sNO -> sES	Assumed.
  *	sSS -> sIV	ACK is invalid: we haven't seen a SYN/ACK yet.
+ *	sS2 -> sIV
  *	sSR -> sES	Established state is reached.
  *	sES -> sES	:-)
  *	sFW -> sCW	Normal close request answered by ACK.
@@ -200,29 +206,31 @@ static const u8 tcp_conntracks[2][6][TCP_CONNTRACK_MAX] = {
  *	sTW -> sTW	Retransmitted last ACK. Remain in the same state.
  *	sCL -> sCL
  */
-/* 	     sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sLI	*/
-/*rst*/    { sIV, sCL, sCL, sCL, sCL, sCL, sCL, sCL, sCL, sIV },
+/* 	     sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sS2	*/
+/*rst*/    { sIV, sCL, sCL, sCL, sCL, sCL, sCL, sCL, sCL, sCL },
 /*none*/   { sIV, sIV, sIV, sIV, sIV, sIV, sIV, sIV, sIV, sIV }
 	},
 	{
 /* REPLY */
-/* 	     sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sLI	*/
-/*syn*/	   { sIV, sIV, sIV, sIV, sIV, sIV, sIV, sIV, sIV, sIV },
+/* 	     sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sS2	*/
+/*syn*/	   { sIV, sS2, sIV, sIV, sIV, sIV, sIV, sIV, sIV, sS2 },
 /*
  *	sNO -> sIV	Never reached.
- *	sSS -> sIV	Simultaneous open, not supported
- *	sSR -> sIV	Simultaneous open, not supported.
- *	sES -> sIV	Server may not initiate a connection.
+ *	sSS -> sS2	Simultaneous open
+ *	sS2 -> sS2	Retransmitted simultaneous SYN
+ *	sSR -> sIV	Invalid SYN packets sent by the server
+ *	sES -> sIV
  *	sFW -> sIV
  *	sCW -> sIV
  *	sLA -> sIV
  *	sTW -> sIV	Reopened connection, but server may not do it.
  *	sCL -> sIV
  */
-/* 	     sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sLI	*/
-/*synack*/ { sIV, sSR, sSR, sIG, sIG, sIG, sIG, sIG, sIG, sIV },
+/* 	     sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sS2	*/
+/*synack*/ { sIV, sSR, sSR, sIG, sIG, sIG, sIG, sIG, sIG, sSR },
 /*
  *	sSS -> sSR	Standard open.
+ *	sS2 -> sSR	Simultaneous open
  *	sSR -> sSR	Retransmitted SYN/ACK.
  *	sES -> sIG	Late retransmitted SYN/ACK?
  *	sFW -> sIG	Might be SYN/ACK answering ignored SYN
@@ -231,10 +239,11 @@ static const u8 tcp_conntracks[2][6][TCP_CONNTRACK_MAX] = {
  *	sTW -> sIG
  *	sCL -> sIG
  */
-/* 	     sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sLI	*/
+/* 	     sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sS2	*/
 /*fin*/    { sIV, sIV, sFW, sFW, sLA, sLA, sLA, sTW, sCL, sIV },
 /*
  *	sSS -> sIV	Server might not send FIN in this state.
+ *	sS2 -> sIV
  *	sSR -> sFW	Close started.
  *	sES -> sFW
  *	sFW -> sLA	FIN seen in both directions.
@@ -243,10 +252,11 @@ static const u8 tcp_conntracks[2][6][TCP_CONNTRACK_MAX] = {
  *	sTW -> sTW
  *	sCL -> sCL
  */
-/* 	     sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sLI	*/
-/*ack*/	   { sIV, sIG, sSR, sES, sCW, sCW, sTW, sTW, sCL, sIV },
+/* 	     sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sS2	*/
+/*ack*/	   { sIV, sIG, sSR, sES, sCW, sCW, sTW, sTW, sCL, sIG },
 /*
  *	sSS -> sIG	Might be a half-open connection.
+ *	sS2 -> sIG
  *	sSR -> sSR	Might answer late resent SYN.
  *	sES -> sES	:-)
  *	sFW -> sCW	Normal close request answered by ACK.
@@ -255,8 +265,8 @@ static const u8 tcp_conntracks[2][6][TCP_CONNTRACK_MAX] = {
  *	sTW -> sTW	Retransmitted last ACK.
  *	sCL -> sCL
  */
-/* 	     sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sLI	*/
-/*rst*/    { sIV, sCL, sCL, sCL, sCL, sCL, sCL, sCL, sCL, sIV },
+/* 	     sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sS2	*/
+/*rst*/    { sIV, sCL, sCL, sCL, sCL, sCL, sCL, sCL, sCL, sCL },
 /*none*/   { sIV, sIV, sIV, sIV, sIV, sIV, sIV, sIV, sIV, sIV }
 	}
 };
@@ -296,13 +306,13 @@ static int tcp_print_tuple(struct seq_file *s,
 }
 
 /* Print out the private part of the conntrack. */
-static int tcp_print_conntrack(struct seq_file *s, const struct nf_conn *ct)
+static int tcp_print_conntrack(struct seq_file *s, struct nf_conn *ct)
 {
 	enum tcp_conntrack state;
 
-	read_lock_bh(&tcp_lock);
+	spin_lock_bh(&ct->lock);
 	state = ct->proto.tcp.state;
-	read_unlock_bh(&tcp_lock);
+	spin_unlock_bh(&ct->lock);
 
 	return seq_printf(s, "%s ", tcp_conntrack_names[state]);
 }
@@ -521,13 +531,14 @@ static bool tcp_in_window(const struct nf_conn *ct,
 		 receiver->td_end, receiver->td_maxend, receiver->td_maxwin,
 		 receiver->td_scale);
 
-	if (sender->td_end == 0) {
+	if (sender->td_maxwin == 0) {
 		/*
 		 * Initialize sender data.
 		 */
-		if (tcph->syn && tcph->ack) {
+		if (tcph->syn) {
 			/*
-			 * Outgoing SYN-ACK in reply to a SYN.
+			 * SYN-ACK in reply to a SYN
+			 * or SYN from reply direction in simultaneous open.
 			 */
 			sender->td_end =
 			sender->td_maxend = end;
@@ -543,6 +554,9 @@ static bool tcp_in_window(const struct nf_conn *ct,
 			      && receiver->flags & IP_CT_TCP_FLAG_WINDOW_SCALE))
 				sender->td_scale =
 				receiver->td_scale = 0;
+			if (!tcph->ack)
+				/* Simultaneous open */
+				return true;
 		} else {
 			/*
 			 * We are in the middle of a connection,
@@ -716,14 +730,14 @@ void nf_conntrack_tcp_update(const struct sk_buff *skb,
 
 	end = segment_seq_plus_len(ntohl(tcph->seq), skb->len, dataoff, tcph);
 
-	write_lock_bh(&tcp_lock);
+	spin_lock_bh(&ct->lock);
 	/*
 	 * We have to worry for the ack in the reply packet only...
 	 */
 	if (after(end, ct->proto.tcp.seen[dir].td_end))
 		ct->proto.tcp.seen[dir].td_end = end;
 	ct->proto.tcp.last_end = end;
-	write_unlock_bh(&tcp_lock);
+	spin_unlock_bh(&ct->lock);
 	pr_debug("tcp_update: sender end=%u maxend=%u maxwin=%u scale=%i "
 		 "receiver end=%u maxend=%u maxwin=%u scale=%i\n",
 		 sender->td_end, sender->td_maxend, sender->td_maxwin,
@@ -832,7 +846,7 @@ static int tcp_packet(struct nf_conn *ct,
 	th = skb_header_pointer(skb, dataoff, sizeof(_tcph), &_tcph);
 	BUG_ON(th == NULL);
 
-	write_lock_bh(&tcp_lock);
+	spin_lock_bh(&ct->lock);
 	old_state = ct->proto.tcp.state;
 	dir = CTINFO2DIR(ctinfo);
 	index = get_conntrack_index(th);
@@ -862,7 +876,7 @@ static int tcp_packet(struct nf_conn *ct,
 		        && ct->proto.tcp.last_index == TCP_RST_SET)) {
 			/* Attempt to reopen a closed/aborted connection.
 			 * Delete this connection and look up again. */
-			write_unlock_bh(&tcp_lock);
+			spin_unlock_bh(&ct->lock);
 
 			/* Only repeat if we can actually remove the timer.
 			 * Destruction may already be in progress in process
@@ -898,7 +912,7 @@ static int tcp_packet(struct nf_conn *ct,
 			 * that the client cannot but retransmit its SYN and
 			 * thus initiate a clean new session.
 			 */
-			write_unlock_bh(&tcp_lock);
+			spin_unlock_bh(&ct->lock);
 			if (LOG_INVALID(net, IPPROTO_TCP))
 				nf_log_packet(pf, 0, skb, NULL, NULL, NULL,
 					  "nf_ct_tcp: killing out of sync session ");
@@ -911,7 +925,7 @@ static int tcp_packet(struct nf_conn *ct,
 		ct->proto.tcp.last_end =
 		    segment_seq_plus_len(ntohl(th->seq), skb->len, dataoff, th);
 
-		write_unlock_bh(&tcp_lock);
+		spin_unlock_bh(&ct->lock);
 		if (LOG_INVALID(net, IPPROTO_TCP))
 			nf_log_packet(pf, 0, skb, NULL, NULL, NULL,
 				  "nf_ct_tcp: invalid packet ignored ");
@@ -920,7 +934,7 @@ static int tcp_packet(struct nf_conn *ct,
 		/* Invalid packet */
 		pr_debug("nf_ct_tcp: Invalid dir=%i index=%u ostate=%u\n",
 			 dir, get_conntrack_index(th), old_state);
-		write_unlock_bh(&tcp_lock);
+		spin_unlock_bh(&ct->lock);
 		if (LOG_INVALID(net, IPPROTO_TCP))
 			nf_log_packet(pf, 0, skb, NULL, NULL, NULL,
 				  "nf_ct_tcp: invalid state ");
@@ -930,7 +944,7 @@ static int tcp_packet(struct nf_conn *ct,
 		    && (ct->proto.tcp.seen[!dir].flags & IP_CT_TCP_FLAG_MAXACK_SET)
 		    && before(ntohl(th->seq), ct->proto.tcp.seen[!dir].td_maxack)) {
 			/* Invalid RST  */
-			write_unlock_bh(&tcp_lock);
+			spin_unlock_bh(&ct->lock);
 			if (LOG_INVALID(net, IPPROTO_TCP))
 				nf_log_packet(pf, 0, skb, NULL, NULL, NULL,
 					  "nf_ct_tcp: invalid RST ");
@@ -961,7 +975,7 @@ static int tcp_packet(struct nf_conn *ct,
 
 	if (!tcp_in_window(ct, &ct->proto.tcp, dir, index,
 			   skb, dataoff, th, pf)) {
-		write_unlock_bh(&tcp_lock);
+		spin_unlock_bh(&ct->lock);
 		return -NF_ACCEPT;
 	}
      in_window:
@@ -990,9 +1004,8 @@ static int tcp_packet(struct nf_conn *ct,
 		timeout = nf_ct_tcp_timeout_unacknowledged;
 	else
 		timeout = tcp_timeouts[new_state];
-	write_unlock_bh(&tcp_lock);
+	spin_unlock_bh(&ct->lock);
 
-	nf_conntrack_event_cache(IPCT_PROTOINFO_VOLATILE, ct);
 	if (new_state != old_state)
 		nf_conntrack_event_cache(IPCT_PROTOINFO, ct);
 
@@ -1086,7 +1099,7 @@ static bool tcp_new(struct nf_conn *ct, const struct sk_buff *skb,
 
 	ct->proto.tcp.seen[1].td_end = 0;
 	ct->proto.tcp.seen[1].td_maxend = 0;
-	ct->proto.tcp.seen[1].td_maxwin = 1;
+	ct->proto.tcp.seen[1].td_maxwin = 0;
 	ct->proto.tcp.seen[1].td_scale = 0;
 
 	/* tcp_packet will set them */
@@ -1108,12 +1121,12 @@ static bool tcp_new(struct nf_conn *ct, const struct sk_buff *skb,
 #include <linux/netfilter/nfnetlink_conntrack.h>
 
 static int tcp_to_nlattr(struct sk_buff *skb, struct nlattr *nla,
-			 const struct nf_conn *ct)
+			 struct nf_conn *ct)
 {
 	struct nlattr *nest_parms;
 	struct nf_ct_tcp_flags tmp = {};
 
-	read_lock_bh(&tcp_lock);
+	spin_lock_bh(&ct->lock);
 	nest_parms = nla_nest_start(skb, CTA_PROTOINFO_TCP | NLA_F_NESTED);
 	if (!nest_parms)
 		goto nla_put_failure;
@@ -1133,14 +1146,14 @@ static int tcp_to_nlattr(struct sk_buff *skb, struct nlattr *nla,
 	tmp.flags = ct->proto.tcp.seen[1].flags;
 	NLA_PUT(skb, CTA_PROTOINFO_TCP_FLAGS_REPLY,
 		sizeof(struct nf_ct_tcp_flags), &tmp);
-	read_unlock_bh(&tcp_lock);
+	spin_unlock_bh(&ct->lock);
 
 	nla_nest_end(skb, nest_parms);
 
 	return 0;
 
 nla_put_failure:
-	read_unlock_bh(&tcp_lock);
+	spin_unlock_bh(&ct->lock);
 	return -1;
 }
 
@@ -1171,7 +1184,7 @@ static int nlattr_to_tcp(struct nlattr *cda[], struct nf_conn *ct)
 	    nla_get_u8(tb[CTA_PROTOINFO_TCP_STATE]) >= TCP_CONNTRACK_MAX)
 		return -EINVAL;
 
-	write_lock_bh(&tcp_lock);
+	spin_lock_bh(&ct->lock);
 	if (tb[CTA_PROTOINFO_TCP_STATE])
 		ct->proto.tcp.state = nla_get_u8(tb[CTA_PROTOINFO_TCP_STATE]);
 
@@ -1198,7 +1211,7 @@ static int nlattr_to_tcp(struct nlattr *cda[], struct nf_conn *ct)
 		ct->proto.tcp.seen[1].td_scale =
 			nla_get_u8(tb[CTA_PROTOINFO_TCP_WSCALE_REPLY]);
 	}
-	write_unlock_bh(&tcp_lock);
+	spin_unlock_bh(&ct->lock);
 
 	return 0;
 }
@@ -1328,6 +1341,13 @@ static struct ctl_table tcp_compat_sysctl_table[] = {
 		.proc_handler	= proc_dointvec_jiffies,
 	},
 	{
+		.procname	= "ip_conntrack_tcp_timeout_syn_sent2",
+		.data		= &tcp_timeouts[TCP_CONNTRACK_SYN_SENT2],
+		.maxlen		= sizeof(unsigned int),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec_jiffies,
+	},
+	{
 		.procname	= "ip_conntrack_tcp_timeout_syn_recv",
 		.data		= &tcp_timeouts[TCP_CONNTRACK_SYN_RECV],
 		.maxlen		= sizeof(unsigned int),
diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c
index beb37311e1a5..4e620305f28c 100644
--- a/net/netfilter/nf_log.c
+++ b/net/netfilter/nf_log.c
@@ -47,7 +47,6 @@ int nf_log_register(u_int8_t pf, struct nf_logger *logger)
 	mutex_lock(&nf_log_mutex);
 
 	if (pf == NFPROTO_UNSPEC) {
-		int i;
 		for (i = NFPROTO_UNSPEC; i < NFPROTO_NUMPROTO; i++)
 			list_add_tail(&(logger->list[i]), &(nf_loggers_l[i]));
 	} else {
@@ -216,7 +215,7 @@ static const struct file_operations nflog_file_ops = {
 #endif /* PROC_FS */
 
 #ifdef CONFIG_SYSCTL
-struct ctl_path nf_log_sysctl_path[] = {
+static struct ctl_path nf_log_sysctl_path[] = {
 	{ .procname = "net", .ctl_name = CTL_NET, },
 	{ .procname = "netfilter", .ctl_name = NET_NETFILTER, },
 	{ .procname = "nf_log", .ctl_name = CTL_UNNUMBERED, },
@@ -228,19 +227,26 @@ static struct ctl_table nf_log_sysctl_table[NFPROTO_NUMPROTO+1];
 static struct ctl_table_header *nf_log_dir_header;
 
 static int nf_log_proc_dostring(ctl_table *table, int write, struct file *filp,
-			 void *buffer, size_t *lenp, loff_t *ppos)
+			 void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	const struct nf_logger *logger;
+	char buf[NFLOGGER_NAME_LEN];
+	size_t size = *lenp;
 	int r = 0;
 	int tindex = (unsigned long)table->extra1;
 
 	if (write) {
-		if (!strcmp(buffer, "NONE")) {
+		if (size > sizeof(buf))
+			size = sizeof(buf);
+		if (copy_from_user(buf, buffer, size))
+			return -EFAULT;
+
+		if (!strcmp(buf, "NONE")) {
 			nf_log_unbind_pf(tindex);
 			return 0;
 		}
 		mutex_lock(&nf_log_mutex);
-		logger = __find_logger(tindex, buffer);
+		logger = __find_logger(tindex, buf);
 		if (logger == NULL) {
 			mutex_unlock(&nf_log_mutex);
 			return -ENOENT;
@@ -248,14 +254,14 @@ static int nf_log_proc_dostring(ctl_table *table, int write, struct file *filp,
 		rcu_assign_pointer(nf_loggers[tindex], logger);
 		mutex_unlock(&nf_log_mutex);
 	} else {
-		rcu_read_lock();
-		logger = rcu_dereference(nf_loggers[tindex]);
+		mutex_lock(&nf_log_mutex);
+		logger = nf_loggers[tindex];
 		if (!logger)
 			table->data = "NONE";
 		else
 			table->data = logger->name;
 		r = proc_dostring(table, write, filp, buffer, lenp, ppos);
-		rcu_read_unlock();
+		mutex_unlock(&nf_log_mutex);
 	}
 
 	return r;
diff --git a/net/netfilter/nf_queue.c b/net/netfilter/nf_queue.c
index 4f2310c93e01..3a6fd77f7761 100644
--- a/net/netfilter/nf_queue.c
+++ b/net/netfilter/nf_queue.c
@@ -204,10 +204,10 @@ int nf_queue(struct sk_buff *skb,
 				  queuenum);
 
 	switch (pf) {
-	case AF_INET:
+	case NFPROTO_IPV4:
 		skb->protocol = htons(ETH_P_IP);
 		break;
-	case AF_INET6:
+	case NFPROTO_IPV6:
 		skb->protocol = htons(ETH_P_IPV6);
 		break;
 	}
diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c
index b8ab37ad7ed5..92761a988375 100644
--- a/net/netfilter/nfnetlink.c
+++ b/net/netfilter/nfnetlink.c
@@ -107,9 +107,10 @@ int nfnetlink_has_listeners(unsigned int group)
 }
 EXPORT_SYMBOL_GPL(nfnetlink_has_listeners);
 
-int nfnetlink_send(struct sk_buff *skb, u32 pid, unsigned group, int echo)
+int nfnetlink_send(struct sk_buff *skb, u32 pid,
+		   unsigned group, int echo, gfp_t flags)
 {
-	return nlmsg_notify(nfnl, skb, pid, group, echo, gfp_any());
+	return nlmsg_notify(nfnl, skb, pid, group, echo, flags);
 }
 EXPORT_SYMBOL_GPL(nfnetlink_send);
 
@@ -136,7 +137,7 @@ static int nfnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 		return -EPERM;
 
 	/* All the messages must at least contain nfgenmsg */
-	if (nlh->nlmsg_len < NLMSG_SPACE(sizeof(struct nfgenmsg)))
+	if (nlh->nlmsg_len < NLMSG_LENGTH(sizeof(struct nfgenmsg)))
 		return 0;
 
 	type = nlh->nlmsg_type;
@@ -160,19 +161,14 @@ replay:
 	{
 		int min_len = NLMSG_SPACE(sizeof(struct nfgenmsg));
 		u_int8_t cb_id = NFNL_MSG_TYPE(nlh->nlmsg_type);
-		u_int16_t attr_count = ss->cb[cb_id].attr_count;
-		struct nlattr *cda[attr_count+1];
-
-		if (likely(nlh->nlmsg_len >= min_len)) {
-			struct nlattr *attr = (void *)nlh + NLMSG_ALIGN(min_len);
-			int attrlen = nlh->nlmsg_len - NLMSG_ALIGN(min_len);
-
-			err = nla_parse(cda, attr_count, attr, attrlen,
-					ss->cb[cb_id].policy);
-			if (err < 0)
-				return err;
-		} else
-			return -EINVAL;
+		struct nlattr *cda[ss->cb[cb_id].attr_count + 1];
+		struct nlattr *attr = (void *)nlh + min_len;
+		int attrlen = nlh->nlmsg_len - min_len;
+
+		err = nla_parse(cda, ss->cb[cb_id].attr_count,
+				attr, attrlen, ss->cb[cb_id].policy);
+		if (err < 0)
+			return err;
 
 		err = nc->call(nfnl, skb, nlh, cda);
 		if (err == -EAGAIN)
diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index 8c860112ce05..71daa0934b6c 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -1,6 +1,6 @@
 /*
  * This is a module which is used for queueing packets and communicating with
- * userspace via nfetlink.
+ * userspace via nfnetlink.
  *
  * (C) 2005 by Harald Welte <laforge@netfilter.org>
  * (C) 2007 by Patrick McHardy <kaber@trash.net>
@@ -932,6 +932,8 @@ static void __exit nfnetlink_queue_fini(void)
 #endif
 	nfnetlink_subsys_unregister(&nfqnl_subsys);
 	netlink_unregister_notifier(&nfqnl_rtnl_notifier);
+
+	rcu_barrier(); /* Wait for completion of call_rcu()'s */
 }
 
 MODULE_DESCRIPTION("netfilter packet queue handler");
diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
index 150e5cf62f85..025d1a0af78b 100644
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -329,6 +329,32 @@ int xt_find_revision(u8 af, const char *name, u8 revision, int target,
 }
 EXPORT_SYMBOL_GPL(xt_find_revision);
 
+static char *textify_hooks(char *buf, size_t size, unsigned int mask)
+{
+	static const char *const names[] = {
+		"PREROUTING", "INPUT", "FORWARD",
+		"OUTPUT", "POSTROUTING", "BROUTING",
+	};
+	unsigned int i;
+	char *p = buf;
+	bool np = false;
+	int res;
+
+	*p = '\0';
+	for (i = 0; i < ARRAY_SIZE(names); ++i) {
+		if (!(mask & (1 << i)))
+			continue;
+		res = snprintf(p, size, "%s%s", np ? "/" : "", names[i]);
+		if (res > 0) {
+			size -= res;
+			p += res;
+		}
+		np = true;
+	}
+
+	return buf;
+}
+
 int xt_check_match(struct xt_mtchk_param *par,
 		   unsigned int size, u_int8_t proto, bool inv_proto)
 {
@@ -338,26 +364,30 @@ int xt_check_match(struct xt_mtchk_param *par,
 		 * ebt_among is exempt from centralized matchsize checking
 		 * because it uses a dynamic-size data set.
 		 */
-		printk("%s_tables: %s match: invalid size %Zu != %u\n",
+		pr_err("%s_tables: %s match: invalid size %Zu != %u\n",
 		       xt_prefix[par->family], par->match->name,
 		       XT_ALIGN(par->match->matchsize), size);
 		return -EINVAL;
 	}
 	if (par->match->table != NULL &&
 	    strcmp(par->match->table, par->table) != 0) {
-		printk("%s_tables: %s match: only valid in %s table, not %s\n",
+		pr_err("%s_tables: %s match: only valid in %s table, not %s\n",
 		       xt_prefix[par->family], par->match->name,
 		       par->match->table, par->table);
 		return -EINVAL;
 	}
 	if (par->match->hooks && (par->hook_mask & ~par->match->hooks) != 0) {
-		printk("%s_tables: %s match: bad hook_mask %#x/%#x\n",
+		char used[64], allow[64];
+
+		pr_err("%s_tables: %s match: used from hooks %s, but only "
+		       "valid from %s\n",
 		       xt_prefix[par->family], par->match->name,
-		       par->hook_mask, par->match->hooks);
+		       textify_hooks(used, sizeof(used), par->hook_mask),
+		       textify_hooks(allow, sizeof(allow), par->match->hooks));
 		return -EINVAL;
 	}
 	if (par->match->proto && (par->match->proto != proto || inv_proto)) {
-		printk("%s_tables: %s match: only valid for protocol %u\n",
+		pr_err("%s_tables: %s match: only valid for protocol %u\n",
 		       xt_prefix[par->family], par->match->name,
 		       par->match->proto);
 		return -EINVAL;
@@ -484,26 +514,30 @@ int xt_check_target(struct xt_tgchk_param *par,
 		    unsigned int size, u_int8_t proto, bool inv_proto)
 {
 	if (XT_ALIGN(par->target->targetsize) != size) {
-		printk("%s_tables: %s target: invalid size %Zu != %u\n",
+		pr_err("%s_tables: %s target: invalid size %Zu != %u\n",
 		       xt_prefix[par->family], par->target->name,
 		       XT_ALIGN(par->target->targetsize), size);
 		return -EINVAL;
 	}
 	if (par->target->table != NULL &&
 	    strcmp(par->target->table, par->table) != 0) {
-		printk("%s_tables: %s target: only valid in %s table, not %s\n",
+		pr_err("%s_tables: %s target: only valid in %s table, not %s\n",
 		       xt_prefix[par->family], par->target->name,
 		       par->target->table, par->table);
 		return -EINVAL;
 	}
 	if (par->target->hooks && (par->hook_mask & ~par->target->hooks) != 0) {
-		printk("%s_tables: %s target: bad hook_mask %#x/%#x\n",
+		char used[64], allow[64];
+
+		pr_err("%s_tables: %s target: used from hooks %s, but only "
+		       "usable from %s\n",
 		       xt_prefix[par->family], par->target->name,
-		       par->hook_mask, par->target->hooks);
+		       textify_hooks(used, sizeof(used), par->hook_mask),
+		       textify_hooks(allow, sizeof(allow), par->target->hooks));
 		return -EINVAL;
 	}
 	if (par->target->proto && (par->target->proto != proto || inv_proto)) {
-		printk("%s_tables: %s target: only valid for protocol %u\n",
+		pr_err("%s_tables: %s target: only valid for protocol %u\n",
 		       xt_prefix[par->family], par->target->name,
 		       par->target->proto);
 		return -EINVAL;
diff --git a/net/netfilter/xt_NFQUEUE.c b/net/netfilter/xt_NFQUEUE.c
index f9977b3311f7..f28f6a5fc02d 100644
--- a/net/netfilter/xt_NFQUEUE.c
+++ b/net/netfilter/xt_NFQUEUE.c
@@ -11,6 +11,10 @@
 #include <linux/module.h>
 #include <linux/skbuff.h>
 
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/jhash.h>
+
 #include <linux/netfilter.h>
 #include <linux/netfilter_arp.h>
 #include <linux/netfilter/x_tables.h>
@@ -23,6 +27,8 @@ MODULE_ALIAS("ipt_NFQUEUE");
 MODULE_ALIAS("ip6t_NFQUEUE");
 MODULE_ALIAS("arpt_NFQUEUE");
 
+static u32 jhash_initval __read_mostly;
+
 static unsigned int
 nfqueue_tg(struct sk_buff *skb, const struct xt_target_param *par)
 {
@@ -31,32 +37,105 @@ nfqueue_tg(struct sk_buff *skb, const struct xt_target_param *par)
 	return NF_QUEUE_NR(tinfo->queuenum);
 }
 
+static u32 hash_v4(const struct sk_buff *skb)
+{
+	const struct iphdr *iph = ip_hdr(skb);
+	__be32 ipaddr;
+
+	/* packets in either direction go into same queue */
+	ipaddr = iph->saddr ^ iph->daddr;
+
+	return jhash_2words((__force u32)ipaddr, iph->protocol, jhash_initval);
+}
+
+static unsigned int
+nfqueue_tg4_v1(struct sk_buff *skb, const struct xt_target_param *par)
+{
+	const struct xt_NFQ_info_v1 *info = par->targinfo;
+	u32 queue = info->queuenum;
+
+	if (info->queues_total > 1)
+		queue = hash_v4(skb) % info->queues_total + queue;
+	return NF_QUEUE_NR(queue);
+}
+
+#if defined(CONFIG_IP6_NF_IPTABLES) || defined(CONFIG_IP6_NF_IPTABLES_MODULE)
+static u32 hash_v6(const struct sk_buff *skb)
+{
+	const struct ipv6hdr *ip6h = ipv6_hdr(skb);
+	__be32 addr[4];
+
+	addr[0] = ip6h->saddr.s6_addr32[0] ^ ip6h->daddr.s6_addr32[0];
+	addr[1] = ip6h->saddr.s6_addr32[1] ^ ip6h->daddr.s6_addr32[1];
+	addr[2] = ip6h->saddr.s6_addr32[2] ^ ip6h->daddr.s6_addr32[2];
+	addr[3] = ip6h->saddr.s6_addr32[3] ^ ip6h->daddr.s6_addr32[3];
+
+	return jhash2((__force u32 *)addr, ARRAY_SIZE(addr), jhash_initval);
+}
+
+static unsigned int
+nfqueue_tg6_v1(struct sk_buff *skb, const struct xt_target_param *par)
+{
+	const struct xt_NFQ_info_v1 *info = par->targinfo;
+	u32 queue = info->queuenum;
+
+	if (info->queues_total > 1)
+		queue = hash_v6(skb) % info->queues_total + queue;
+	return NF_QUEUE_NR(queue);
+}
+#endif
+
+static bool nfqueue_tg_v1_check(const struct xt_tgchk_param *par)
+{
+	const struct xt_NFQ_info_v1 *info = par->targinfo;
+	u32 maxid;
+
+	if (info->queues_total == 0) {
+		pr_err("NFQUEUE: number of total queues is 0\n");
+		return false;
+	}
+	maxid = info->queues_total - 1 + info->queuenum;
+	if (maxid > 0xffff) {
+		pr_err("NFQUEUE: number of queues (%u) out of range (got %u)\n",
+		       info->queues_total, maxid);
+		return false;
+	}
+	return true;
+}
+
 static struct xt_target nfqueue_tg_reg[] __read_mostly = {
 	{
 		.name		= "NFQUEUE",
-		.family		= NFPROTO_IPV4,
+		.family		= NFPROTO_UNSPEC,
 		.target		= nfqueue_tg,
 		.targetsize	= sizeof(struct xt_NFQ_info),
 		.me		= THIS_MODULE,
 	},
 	{
 		.name		= "NFQUEUE",
-		.family		= NFPROTO_IPV6,
-		.target		= nfqueue_tg,
-		.targetsize	= sizeof(struct xt_NFQ_info),
+		.revision	= 1,
+		.family		= NFPROTO_IPV4,
+		.checkentry	= nfqueue_tg_v1_check,
+		.target		= nfqueue_tg4_v1,
+		.targetsize	= sizeof(struct xt_NFQ_info_v1),
 		.me		= THIS_MODULE,
 	},
+#if defined(CONFIG_IP6_NF_IPTABLES) || defined(CONFIG_IP6_NF_IPTABLES_MODULE)
 	{
 		.name		= "NFQUEUE",
-		.family		= NFPROTO_ARP,
-		.target		= nfqueue_tg,
-		.targetsize	= sizeof(struct xt_NFQ_info),
+		.revision	= 1,
+		.family		= NFPROTO_IPV6,
+		.checkentry	= nfqueue_tg_v1_check,
+		.target		= nfqueue_tg6_v1,
+		.targetsize	= sizeof(struct xt_NFQ_info_v1),
 		.me		= THIS_MODULE,
 	},
+#endif
 };
 
 static int __init nfqueue_tg_init(void)
 {
+	get_random_bytes(&jhash_initval, sizeof(jhash_initval));
 	return xt_register_targets(nfqueue_tg_reg, ARRAY_SIZE(nfqueue_tg_reg));
 }
 
diff --git a/net/netfilter/xt_TCPMSS.c b/net/netfilter/xt_TCPMSS.c
index 4f3b1f808795..eda64c1cb1e5 100644
--- a/net/netfilter/xt_TCPMSS.c
+++ b/net/netfilter/xt_TCPMSS.c
@@ -73,11 +73,11 @@ tcpmss_mangle_packet(struct sk_buff *skb,
 	}
 
 	if (info->mss == XT_TCPMSS_CLAMP_PMTU) {
-		if (dst_mtu(skb->dst) <= minlen) {
+		if (dst_mtu(skb_dst(skb)) <= minlen) {
 			if (net_ratelimit())
 				printk(KERN_ERR "xt_TCPMSS: "
 				       "unknown or invalid path-MTU (%u)\n",
-				       dst_mtu(skb->dst));
+				       dst_mtu(skb_dst(skb)));
 			return -1;
 		}
 		if (in_mtu <= minlen) {
@@ -86,7 +86,7 @@ tcpmss_mangle_packet(struct sk_buff *skb,
 				       "invalid path-MTU (%u)\n", in_mtu);
 			return -1;
 		}
-		newmss = min(dst_mtu(skb->dst), in_mtu) - minlen;
+		newmss = min(dst_mtu(skb_dst(skb)), in_mtu) - minlen;
 	} else
 		newmss = info->mss;
 
diff --git a/net/netfilter/xt_cluster.c b/net/netfilter/xt_cluster.c
index 69a639f35403..225ee3ecd69d 100644
--- a/net/netfilter/xt_cluster.c
+++ b/net/netfilter/xt_cluster.c
@@ -15,14 +15,14 @@
 #include <net/netfilter/nf_conntrack.h>
 #include <linux/netfilter/xt_cluster.h>
 
-static inline u_int32_t nf_ct_orig_ipv4_src(const struct nf_conn *ct)
+static inline u32 nf_ct_orig_ipv4_src(const struct nf_conn *ct)
 {
-	return ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip;
+	return (__force u32)ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip;
 }
 
-static inline const void *nf_ct_orig_ipv6_src(const struct nf_conn *ct)
+static inline const u32 *nf_ct_orig_ipv6_src(const struct nf_conn *ct)
 {
-	return ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip6;
+	return (__force u32 *)ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip6;
 }
 
 static inline u_int32_t
diff --git a/net/netfilter/xt_osf.c b/net/netfilter/xt_osf.c
new file mode 100644
index 000000000000..863e40977a4d
--- /dev/null
+++ b/net/netfilter/xt_osf.c
@@ -0,0 +1,428 @@
+/*
+ * Copyright (c) 2003+ Evgeniy Polyakov <zbr@ioremap.net>
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+
+#include <linux/if.h>
+#include <linux/inetdevice.h>
+#include <linux/ip.h>
+#include <linux/list.h>
+#include <linux/rculist.h>
+#include <linux/skbuff.h>
+#include <linux/slab.h>
+#include <linux/tcp.h>
+
+#include <net/ip.h>
+#include <net/tcp.h>
+
+#include <linux/netfilter/nfnetlink.h>
+#include <linux/netfilter/x_tables.h>
+#include <net/netfilter/nf_log.h>
+#include <linux/netfilter/xt_osf.h>
+
+struct xt_osf_finger {
+	struct rcu_head			rcu_head;
+	struct list_head		finger_entry;
+	struct xt_osf_user_finger	finger;
+};
+
+enum osf_fmatch_states {
+	/* Packet does not match the fingerprint */
+	FMATCH_WRONG = 0,
+	/* Packet matches the fingerprint */
+	FMATCH_OK,
+	/* Options do not match the fingerprint, but header does */
+	FMATCH_OPT_WRONG,
+};
+
+/*
+ * Indexed by dont-fragment bit.
+ * It is the only constant value in the fingerprint.
+ */
+static struct list_head xt_osf_fingers[2];
+
+static const struct nla_policy xt_osf_policy[OSF_ATTR_MAX + 1] = {
+	[OSF_ATTR_FINGER]	= { .len = sizeof(struct xt_osf_user_finger) },
+};
+
+static void xt_osf_finger_free_rcu(struct rcu_head *rcu_head)
+{
+	struct xt_osf_finger *f = container_of(rcu_head, struct xt_osf_finger, rcu_head);
+
+	kfree(f);
+}
+
+static int xt_osf_add_callback(struct sock *ctnl, struct sk_buff *skb,
+			struct nlmsghdr *nlh, struct nlattr *osf_attrs[])
+{
+	struct xt_osf_user_finger *f;
+	struct xt_osf_finger *kf = NULL, *sf;
+	int err = 0;
+
+	if (!osf_attrs[OSF_ATTR_FINGER])
+		return -EINVAL;
+
+	if (!(nlh->nlmsg_flags & NLM_F_CREATE))
+		return -EINVAL;
+
+	f = nla_data(osf_attrs[OSF_ATTR_FINGER]);
+
+	kf = kmalloc(sizeof(struct xt_osf_finger), GFP_KERNEL);
+	if (!kf)
+		return -ENOMEM;
+
+	memcpy(&kf->finger, f, sizeof(struct xt_osf_user_finger));
+
+	list_for_each_entry(sf, &xt_osf_fingers[!!f->df], finger_entry) {
+		if (memcmp(&sf->finger, f, sizeof(struct xt_osf_user_finger)))
+			continue;
+
+		kfree(kf);
+		kf = NULL;
+
+		if (nlh->nlmsg_flags & NLM_F_EXCL)
+			err = -EEXIST;
+		break;
+	}
+
+	/*
+	 * We are protected by nfnl mutex.
+	 */
+	if (kf)
+		list_add_tail_rcu(&kf->finger_entry, &xt_osf_fingers[!!f->df]);
+
+	return err;
+}
+
+static int xt_osf_remove_callback(struct sock *ctnl, struct sk_buff *skb,
+			struct nlmsghdr *nlh, struct nlattr *osf_attrs[])
+{
+	struct xt_osf_user_finger *f;
+	struct xt_osf_finger *sf;
+	int err = ENOENT;
+
+	if (!osf_attrs[OSF_ATTR_FINGER])
+		return -EINVAL;
+
+	f = nla_data(osf_attrs[OSF_ATTR_FINGER]);
+
+	list_for_each_entry(sf, &xt_osf_fingers[!!f->df], finger_entry) {
+		if (memcmp(&sf->finger, f, sizeof(struct xt_osf_user_finger)))
+			continue;
+
+		/*
+		 * We are protected by nfnl mutex.
+		 */
+		list_del_rcu(&sf->finger_entry);
+		call_rcu(&sf->rcu_head, xt_osf_finger_free_rcu);
+
+		err = 0;
+		break;
+	}
+
+	return err;
+}
+
+static const struct nfnl_callback xt_osf_nfnetlink_callbacks[OSF_MSG_MAX] = {
+	[OSF_MSG_ADD]	= {
+		.call		= xt_osf_add_callback,
+		.attr_count	= OSF_ATTR_MAX,
+		.policy		= xt_osf_policy,
+	},
+	[OSF_MSG_REMOVE]	= {
+		.call		= xt_osf_remove_callback,
+		.attr_count	= OSF_ATTR_MAX,
+		.policy		= xt_osf_policy,
+	},
+};
+
+static const struct nfnetlink_subsystem xt_osf_nfnetlink = {
+	.name			= "osf",
+	.subsys_id		= NFNL_SUBSYS_OSF,
+	.cb_count		= OSF_MSG_MAX,
+	.cb			= xt_osf_nfnetlink_callbacks,
+};
+
+static inline int xt_osf_ttl(const struct sk_buff *skb, const struct xt_osf_info *info,
+			    unsigned char f_ttl)
+{
+	const struct iphdr *ip = ip_hdr(skb);
+
+	if (info->flags & XT_OSF_TTL) {
+		if (info->ttl == XT_OSF_TTL_TRUE)
+			return ip->ttl == f_ttl;
+		if (info->ttl == XT_OSF_TTL_NOCHECK)
+			return 1;
+		else if (ip->ttl <= f_ttl)
+			return 1;
+		else {
+			struct in_device *in_dev = __in_dev_get_rcu(skb->dev);
+			int ret = 0;
+
+			for_ifa(in_dev) {
+				if (inet_ifa_match(ip->saddr, ifa)) {
+					ret = (ip->ttl == f_ttl);
+					break;
+				}
+			}
+			endfor_ifa(in_dev);
+
+			return ret;
+		}
+	}
+
+	return ip->ttl == f_ttl;
+}
+
+static bool xt_osf_match_packet(const struct sk_buff *skb,
+		const struct xt_match_param *p)
+{
+	const struct xt_osf_info *info = p->matchinfo;
+	const struct iphdr *ip = ip_hdr(skb);
+	const struct tcphdr *tcp;
+	struct tcphdr _tcph;
+	int fmatch = FMATCH_WRONG, fcount = 0;
+	unsigned int optsize = 0, check_WSS = 0;
+	u16 window, totlen, mss = 0;
+	bool df;
+	const unsigned char *optp = NULL, *_optp = NULL;
+	unsigned char opts[MAX_IPOPTLEN];
+	const struct xt_osf_finger *kf;
+	const struct xt_osf_user_finger *f;
+
+	if (!info)
+		return false;
+
+	tcp = skb_header_pointer(skb, ip_hdrlen(skb), sizeof(struct tcphdr), &_tcph);
+	if (!tcp)
+		return false;
+
+	if (!tcp->syn)
+		return false;
+
+	totlen = ntohs(ip->tot_len);
+	df = ntohs(ip->frag_off) & IP_DF;
+	window = ntohs(tcp->window);
+
+	if (tcp->doff * 4 > sizeof(struct tcphdr)) {
+		optsize = tcp->doff * 4 - sizeof(struct tcphdr);
+
+		_optp = optp = skb_header_pointer(skb, ip_hdrlen(skb) +
+				sizeof(struct tcphdr), optsize, opts);
+	}
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(kf, &xt_osf_fingers[df], finger_entry) {
+		f = &kf->finger;
+
+		if (!(info->flags & XT_OSF_LOG) && strcmp(info->genre, f->genre))
+			continue;
+
+		optp = _optp;
+		fmatch = FMATCH_WRONG;
+
+		if (totlen == f->ss && xt_osf_ttl(skb, info, f->ttl)) {
+			int foptsize, optnum;
+
+			/*
+			 * Should not happen if userspace parser was written correctly.
+			 */
+			if (f->wss.wc >= OSF_WSS_MAX)
+				continue;
+
+			/* Check options */
+
+			foptsize = 0;
+			for (optnum = 0; optnum < f->opt_num; ++optnum)
+				foptsize += f->opt[optnum].length;
+
+			if (foptsize > MAX_IPOPTLEN ||
+				optsize > MAX_IPOPTLEN ||
+				optsize != foptsize)
+				continue;
+
+			check_WSS = f->wss.wc;
+
+			for (optnum = 0; optnum < f->opt_num; ++optnum) {
+				if (f->opt[optnum].kind == (*optp)) {
+					__u32 len = f->opt[optnum].length;
+					const __u8 *optend = optp + len;
+					int loop_cont = 0;
+
+					fmatch = FMATCH_OK;
+
+					switch (*optp) {
+					case OSFOPT_MSS:
+						mss = optp[3];
+						mss <<= 8;
+						mss |= optp[2];
+
+						mss = ntohs(mss);
+						break;
+					case OSFOPT_TS:
+						loop_cont = 1;
+						break;
+					}
+
+					optp = optend;
+				} else
+					fmatch = FMATCH_OPT_WRONG;
+
+				if (fmatch != FMATCH_OK)
+					break;
+			}
+
+			if (fmatch != FMATCH_OPT_WRONG) {
+				fmatch = FMATCH_WRONG;
+
+				switch (check_WSS) {
+				case OSF_WSS_PLAIN:
+					if (f->wss.val == 0 || window == f->wss.val)
+						fmatch = FMATCH_OK;
+					break;
+				case OSF_WSS_MSS:
+					/*
+					 * Some smart modems decrease mangle MSS to 
+					 * SMART_MSS_2, so we check standard, decreased
+					 * and the one provided in the fingerprint MSS
+					 * values.
+					 */
+#define SMART_MSS_1	1460
+#define SMART_MSS_2	1448
+					if (window == f->wss.val * mss ||
+					    window == f->wss.val * SMART_MSS_1 ||
+					    window == f->wss.val * SMART_MSS_2)
+						fmatch = FMATCH_OK;
+					break;
+				case OSF_WSS_MTU:
+					if (window == f->wss.val * (mss + 40) ||
+					    window == f->wss.val * (SMART_MSS_1 + 40) ||
+					    window == f->wss.val * (SMART_MSS_2 + 40))
+						fmatch = FMATCH_OK;
+					break;
+				case OSF_WSS_MODULO:
+					if ((window % f->wss.val) == 0)
+						fmatch = FMATCH_OK;
+					break;
+				}
+			}
+
+			if (fmatch != FMATCH_OK)
+				continue;
+
+			fcount++;
+
+			if (info->flags & XT_OSF_LOG)
+				nf_log_packet(p->hooknum, 0, skb, p->in, p->out, NULL,
+					"%s [%s:%s] : %pi4:%d -> %pi4:%d hops=%d\n",
+					f->genre, f->version, f->subtype,
+					&ip->saddr, ntohs(tcp->source),
+					&ip->daddr, ntohs(tcp->dest),
+					f->ttl - ip->ttl);
+
+			if ((info->flags & XT_OSF_LOG) &&
+			    info->loglevel == XT_OSF_LOGLEVEL_FIRST)
+				break;
+		}
+	}
+	rcu_read_unlock();
+
+	if (!fcount && (info->flags & XT_OSF_LOG))
+		nf_log_packet(p->hooknum, 0, skb, p->in, p->out, NULL,
+			"Remote OS is not known: %pi4:%u -> %pi4:%u\n",
+				&ip->saddr, ntohs(tcp->source),
+				&ip->daddr, ntohs(tcp->dest));
+
+	if (fcount)
+		fmatch = FMATCH_OK;
+
+	return fmatch == FMATCH_OK;
+}
+
+static struct xt_match xt_osf_match = {
+	.name 		= "osf",
+	.revision	= 0,
+	.family		= NFPROTO_IPV4,
+	.proto		= IPPROTO_TCP,
+	.hooks      	= (1 << NF_INET_LOCAL_IN) |
+				(1 << NF_INET_PRE_ROUTING) |
+				(1 << NF_INET_FORWARD),
+	.match 		= xt_osf_match_packet,
+	.matchsize	= sizeof(struct xt_osf_info),
+	.me		= THIS_MODULE,
+};
+
+static int __init xt_osf_init(void)
+{
+	int err = -EINVAL;
+	int i;
+
+	for (i=0; i<ARRAY_SIZE(xt_osf_fingers); ++i)
+		INIT_LIST_HEAD(&xt_osf_fingers[i]);
+
+	err = nfnetlink_subsys_register(&xt_osf_nfnetlink);
+	if (err < 0) {
+		printk(KERN_ERR "Failed (%d) to register OSF nsfnetlink helper.\n", err);
+		goto err_out_exit;
+	}
+
+	err = xt_register_match(&xt_osf_match);
+	if (err) {
+		printk(KERN_ERR "Failed (%d) to register OS fingerprint "
+				"matching module.\n", err);
+		goto err_out_remove;
+	}
+
+	return 0;
+
+err_out_remove:
+	nfnetlink_subsys_unregister(&xt_osf_nfnetlink);
+err_out_exit:
+	return err;
+}
+
+static void __exit xt_osf_fini(void)
+{
+	struct xt_osf_finger *f;
+	int i;
+
+	nfnetlink_subsys_unregister(&xt_osf_nfnetlink);
+	xt_unregister_match(&xt_osf_match);
+
+	rcu_read_lock();
+	for (i=0; i<ARRAY_SIZE(xt_osf_fingers); ++i) {
+
+		list_for_each_entry_rcu(f, &xt_osf_fingers[i], finger_entry) {
+			list_del_rcu(&f->finger_entry);
+			call_rcu(&f->rcu_head, xt_osf_finger_free_rcu);
+		}
+	}
+	rcu_read_unlock();
+
+	rcu_barrier();
+}
+
+module_init(xt_osf_init);
+module_exit(xt_osf_fini);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Evgeniy Polyakov <zbr@ioremap.net>");
+MODULE_DESCRIPTION("Passive OS fingerprint matching.");
+MODULE_ALIAS_NFNL_SUBSYS(NFNL_SUBSYS_OSF);
diff --git a/net/netfilter/xt_policy.c b/net/netfilter/xt_policy.c
index 328bd20ddd25..4cbfebda8fa1 100644
--- a/net/netfilter/xt_policy.c
+++ b/net/netfilter/xt_policy.c
@@ -86,7 +86,7 @@ match_policy_out(const struct sk_buff *skb, const struct xt_policy_info *info,
 		 unsigned short family)
 {
 	const struct xt_policy_elem *e;
-	const struct dst_entry *dst = skb->dst;
+	const struct dst_entry *dst = skb_dst(skb);
 	int strict = info->flags & XT_POLICY_MATCH_STRICT;
 	int i, pos;
 
diff --git a/net/netfilter/xt_quota.c b/net/netfilter/xt_quota.c
index 01dd07b764ec..98fc190e8f0e 100644
--- a/net/netfilter/xt_quota.c
+++ b/net/netfilter/xt_quota.c
@@ -54,6 +54,7 @@ static bool quota_mt_check(const struct xt_mtchk_param *par)
 	if (q->master == NULL)
 		return -ENOMEM;
 
+	q->master->quota = q->quota;
 	return true;
 }
 
diff --git a/net/netfilter/xt_rateest.c b/net/netfilter/xt_rateest.c
index 220a1d588ee0..4fc6a917f6de 100644
--- a/net/netfilter/xt_rateest.c
+++ b/net/netfilter/xt_rateest.c
@@ -66,7 +66,7 @@ xt_rateest_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 		if (info->flags & XT_RATEEST_MATCH_BPS)
 			ret &= bps1 == bps2;
 		if (info->flags & XT_RATEEST_MATCH_PPS)
-			ret &= pps2 == pps2;
+			ret &= pps1 == pps2;
 		break;
 	}
 
diff --git a/net/netfilter/xt_realm.c b/net/netfilter/xt_realm.c
index 67419287bc7e..484d1689bfde 100644
--- a/net/netfilter/xt_realm.c
+++ b/net/netfilter/xt_realm.c
@@ -25,7 +25,7 @@ static bool
 realm_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 {
 	const struct xt_realm_info *info = par->matchinfo;
-	const struct dst_entry *dst = skb->dst;
+	const struct dst_entry *dst = skb_dst(skb);
 
 	return (info->id == (dst->tclassid & info->mask)) ^ info->invert;
 }
diff --git a/net/netfilter/xt_socket.c b/net/netfilter/xt_socket.c
index 1acc089be7e9..ebf00ad5b194 100644
--- a/net/netfilter/xt_socket.c
+++ b/net/netfilter/xt_socket.c
@@ -22,6 +22,8 @@
 #include <net/netfilter/nf_tproxy_core.h>
 #include <net/netfilter/ipv4/nf_defrag_ipv4.h>
 
+#include <linux/netfilter/xt_socket.h>
+
 #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
 #define XT_SOCKET_HAVE_CONNTRACK 1
 #include <net/netfilter/nf_conntrack.h>
@@ -86,7 +88,8 @@ extract_icmp_fields(const struct sk_buff *skb,
 
 
 static bool
-socket_mt(const struct sk_buff *skb, const struct xt_match_param *par)
+socket_match(const struct sk_buff *skb, const struct xt_match_param *par,
+	     const struct xt_socket_mtinfo1 *info)
 {
 	const struct iphdr *iph = ip_hdr(skb);
 	struct udphdr _hdr, *hp = NULL;
@@ -141,10 +144,24 @@ socket_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 	sk = nf_tproxy_get_sock_v4(dev_net(skb->dev), protocol,
 				   saddr, daddr, sport, dport, par->in, false);
 	if (sk != NULL) {
-		bool wildcard = (sk->sk_state != TCP_TIME_WAIT && inet_sk(sk)->rcv_saddr == 0);
+		bool wildcard;
+		bool transparent = true;
+
+		/* Ignore sockets listening on INADDR_ANY */
+		wildcard = (sk->sk_state != TCP_TIME_WAIT &&
+			    inet_sk(sk)->rcv_saddr == 0);
+
+		/* Ignore non-transparent sockets,
+		   if XT_SOCKET_TRANSPARENT is used */
+		if (info && info->flags & XT_SOCKET_TRANSPARENT)
+			transparent = ((sk->sk_state != TCP_TIME_WAIT &&
+					inet_sk(sk)->transparent) ||
+				       (sk->sk_state == TCP_TIME_WAIT &&
+					inet_twsk(sk)->tw_transparent));
 
 		nf_tproxy_put_sock(sk);
-		if (wildcard)
+
+		if (wildcard || !transparent)
 			sk = NULL;
 	}
 
@@ -157,23 +174,47 @@ socket_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 	return (sk != NULL);
 }
 
-static struct xt_match socket_mt_reg __read_mostly = {
-	.name		= "socket",
-	.family		= AF_INET,
-	.match		= socket_mt,
-	.hooks		= 1 << NF_INET_PRE_ROUTING,
-	.me		= THIS_MODULE,
+static bool
+socket_mt_v0(const struct sk_buff *skb, const struct xt_match_param *par)
+{
+	return socket_match(skb, par, NULL);
+}
+
+static bool
+socket_mt_v1(const struct sk_buff *skb, const struct xt_match_param *par)
+{
+	return socket_match(skb, par, par->matchinfo);
+}
+
+static struct xt_match socket_mt_reg[] __read_mostly = {
+	{
+		.name		= "socket",
+		.revision	= 0,
+		.family		= NFPROTO_IPV4,
+		.match		= socket_mt_v0,
+		.hooks		= 1 << NF_INET_PRE_ROUTING,
+		.me		= THIS_MODULE,
+	},
+	{
+		.name		= "socket",
+		.revision	= 1,
+		.family		= NFPROTO_IPV4,
+		.match		= socket_mt_v1,
+		.matchsize	= sizeof(struct xt_socket_mtinfo1),
+		.hooks		= 1 << NF_INET_PRE_ROUTING,
+		.me		= THIS_MODULE,
+	},
 };
 
 static int __init socket_mt_init(void)
 {
 	nf_defrag_ipv4_enable();
-	return xt_register_match(&socket_mt_reg);
+	return xt_register_matches(socket_mt_reg, ARRAY_SIZE(socket_mt_reg));
 }
 
 static void __exit socket_mt_exit(void)
 {
-	xt_unregister_match(&socket_mt_reg);
+	xt_unregister_matches(socket_mt_reg, ARRAY_SIZE(socket_mt_reg));
 }
 
 module_init(socket_mt_init);
diff --git a/net/netlabel/netlabel_cipso_v4.c b/net/netlabel/netlabel_cipso_v4.c
index bf1ab1a6790d..e639298bc9c8 100644
--- a/net/netlabel/netlabel_cipso_v4.c
+++ b/net/netlabel/netlabel_cipso_v4.c
@@ -785,18 +785,6 @@ static struct genl_ops netlbl_cipsov4_ops[] = {
  */
 int __init netlbl_cipsov4_genl_init(void)
 {
-	int ret_val, i;
-
-	ret_val = genl_register_family(&netlbl_cipsov4_gnl_family);
-	if (ret_val != 0)
-		return ret_val;
-
-	for (i = 0; i < ARRAY_SIZE(netlbl_cipsov4_ops); i++) {
-		ret_val = genl_register_ops(&netlbl_cipsov4_gnl_family,
-				&netlbl_cipsov4_ops[i]);
-		if (ret_val != 0)
-			return ret_val;
-	}
-
-	return 0;
+	return genl_register_family_with_ops(&netlbl_cipsov4_gnl_family,
+		netlbl_cipsov4_ops, ARRAY_SIZE(netlbl_cipsov4_ops));
 }
diff --git a/net/netlabel/netlabel_mgmt.c b/net/netlabel/netlabel_mgmt.c
index 1821c5d50fb8..8203623e65ad 100644
--- a/net/netlabel/netlabel_mgmt.c
+++ b/net/netlabel/netlabel_mgmt.c
@@ -779,18 +779,6 @@ static struct genl_ops netlbl_mgmt_genl_ops[] = {
  */
 int __init netlbl_mgmt_genl_init(void)
 {
-	int ret_val, i;
-
-	ret_val = genl_register_family(&netlbl_mgmt_gnl_family);
-	if (ret_val != 0)
-		return ret_val;
-
-	for (i = 0; i < ARRAY_SIZE(netlbl_mgmt_genl_ops); i++) {
-		ret_val = genl_register_ops(&netlbl_mgmt_gnl_family,
-				&netlbl_mgmt_genl_ops[i]);
-		if (ret_val != 0)
-			return ret_val;
-	}
-
-	return 0;
+	return genl_register_family_with_ops(&netlbl_mgmt_gnl_family,
+		netlbl_mgmt_genl_ops, ARRAY_SIZE(netlbl_mgmt_genl_ops));
 }
diff --git a/net/netlabel/netlabel_unlabeled.c b/net/netlabel/netlabel_unlabeled.c
index f3c5c68c6848..fb357f010189 100644
--- a/net/netlabel/netlabel_unlabeled.c
+++ b/net/netlabel/netlabel_unlabeled.c
@@ -1478,20 +1478,8 @@ static struct genl_ops netlbl_unlabel_genl_ops[] = {
  */
 int __init netlbl_unlabel_genl_init(void)
 {
-	int ret_val, i;
-
-	ret_val = genl_register_family(&netlbl_unlabel_gnl_family);
-	if (ret_val != 0)
-		return ret_val;
-
-	for (i = 0; i < ARRAY_SIZE(netlbl_unlabel_genl_ops); i++) {
-		ret_val = genl_register_ops(&netlbl_unlabel_gnl_family,
-				&netlbl_unlabel_genl_ops[i]);
-		if (ret_val != 0)
-			return ret_val;
-	}
-
-	return 0;
+	return genl_register_family_with_ops(&netlbl_unlabel_gnl_family,
+		netlbl_unlabel_genl_ops, ARRAY_SIZE(netlbl_unlabel_genl_ops));
 }
 
 /*
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 8b6bbb3032b0..2936fa3b6dc8 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1914,8 +1914,8 @@ static int netlink_seq_show(struct seq_file *seq, void *v)
 			   s->sk_protocol,
 			   nlk->pid,
 			   nlk->groups ? (u32)nlk->groups[0] : 0,
-			   atomic_read(&s->sk_rmem_alloc),
-			   atomic_read(&s->sk_wmem_alloc),
+			   sk_rmem_alloc_get(s),
+			   sk_wmem_alloc_get(s),
 			   nlk->cb,
 			   atomic_read(&s->sk_refcnt),
 			   atomic_read(&s->sk_drops)
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 1d3dd30099df..eed4c6a8afc0 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -384,6 +384,52 @@ errout:
 }
 
 /**
+ * genl_register_family_with_ops - register a generic netlink family
+ * @family: generic netlink family
+ * @ops: operations to be registered
+ * @n_ops: number of elements to register
+ *
+ * Registers the specified family and operations from the specified table.
+ * Only one family may be registered with the same family name or identifier.
+ *
+ * The family id may equal GENL_ID_GENERATE causing an unique id to
+ * be automatically generated and assigned.
+ *
+ * Either a doit or dumpit callback must be specified for every registered
+ * operation or the function will fail. Only one operation structure per
+ * command identifier may be registered.
+ *
+ * See include/net/genetlink.h for more documenation on the operations
+ * structure.
+ *
+ * This is equivalent to calling genl_register_family() followed by
+ * genl_register_ops() for every operation entry in the table taking
+ * care to unregister the family on error path.
+ *
+ * Return 0 on success or a negative error code.
+ */
+int genl_register_family_with_ops(struct genl_family *family,
+	struct genl_ops *ops, size_t n_ops)
+{
+	int err, i;
+
+	err = genl_register_family(family);
+	if (err)
+		return err;
+
+	for (i = 0; i < n_ops; ++i, ++ops) {
+		err = genl_register_ops(family, ops);
+		if (err)
+			goto err_out;
+	}
+	return 0;
+err_out:
+	genl_unregister_family(family);
+	return err;
+}
+EXPORT_SYMBOL(genl_register_family_with_ops);
+
+/**
  * genl_unregister_family - unregister generic netlink family
  * @family: generic netlink family
  *
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 3be0e016ab7d..ce51ce012cda 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -286,8 +286,7 @@ void nr_destroy_socket(struct sock *sk)
 		kfree_skb(skb);
 	}
 
-	if (atomic_read(&sk->sk_wmem_alloc) ||
-	    atomic_read(&sk->sk_rmem_alloc)) {
+	if (sk_has_allocations(sk)) {
 		/* Defer: outstanding buffers */
 		sk->sk_timer.function = nr_destroy_timer;
 		sk->sk_timer.expires  = jiffies + 2 * HZ;
@@ -1206,7 +1205,7 @@ static int nr_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 		long amount;
 
 		lock_sock(sk);
-		amount = sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc);
+		amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk);
 		if (amount < 0)
 			amount = 0;
 		release_sock(sk);
@@ -1342,8 +1341,8 @@ static int nr_info_show(struct seq_file *seq, void *v)
 			nr->n2count,
 			nr->n2,
 			nr->window,
-			atomic_read(&s->sk_wmem_alloc),
-			atomic_read(&s->sk_rmem_alloc),
+			sk_wmem_alloc_get(s),
+			sk_rmem_alloc_get(s),
 			s->sk_socket ? SOCK_INODE(s->sk_socket)->i_ino : 0L);
 
 		bh_unlock_sock(s);
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index f546e81acc45..ebe5718baa31 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -39,6 +39,7 @@
  *					will simply extend the hardware address
  *					byte arrays at the end of sockaddr_ll
  *					and packet_mreq.
+ *		Johann Baudy	:	Added TX RING.
  *
  *		This program is free software; you can redistribute it and/or
  *		modify it under the terms of the GNU General Public License
@@ -157,7 +158,25 @@ struct packet_mreq_max
 };
 
 #ifdef CONFIG_PACKET_MMAP
-static int packet_set_ring(struct sock *sk, struct tpacket_req *req, int closing);
+static int packet_set_ring(struct sock *sk, struct tpacket_req *req,
+		int closing, int tx_ring);
+
+struct packet_ring_buffer {
+	char *			*pg_vec;
+	unsigned int		head;
+	unsigned int		frames_per_block;
+	unsigned int		frame_size;
+	unsigned int		frame_max;
+
+	unsigned int		pg_vec_order;
+	unsigned int		pg_vec_pages;
+	unsigned int		pg_vec_len;
+
+	atomic_t		pending;
+};
+
+struct packet_sock;
+static int tpacket_snd(struct packet_sock *po, struct msghdr *msg);
 #endif
 
 static void packet_flush_mclist(struct sock *sk);
@@ -167,11 +186,8 @@ struct packet_sock {
 	struct sock		sk;
 	struct tpacket_stats	stats;
 #ifdef CONFIG_PACKET_MMAP
-	char *			*pg_vec;
-	unsigned int		head;
-	unsigned int            frames_per_block;
-	unsigned int		frame_size;
-	unsigned int		frame_max;
+	struct packet_ring_buffer	rx_ring;
+	struct packet_ring_buffer	tx_ring;
 	int			copy_thresh;
 #endif
 	struct packet_type	prot_hook;
@@ -185,12 +201,10 @@ struct packet_sock {
 	struct packet_mclist	*mclist;
 #ifdef CONFIG_PACKET_MMAP
 	atomic_t		mapped;
-	unsigned int            pg_vec_order;
-	unsigned int		pg_vec_pages;
-	unsigned int		pg_vec_len;
 	enum tpacket_versions	tp_version;
 	unsigned int		tp_hdrlen;
 	unsigned int		tp_reserve;
+	unsigned int		tp_loss:1;
 #endif
 };
 
@@ -206,36 +220,33 @@ struct packet_skb_cb {
 
 #ifdef CONFIG_PACKET_MMAP
 
-static void *packet_lookup_frame(struct packet_sock *po, unsigned int position,
-				 int status)
+static void __packet_set_status(struct packet_sock *po, void *frame, int status)
 {
-	unsigned int pg_vec_pos, frame_offset;
 	union {
 		struct tpacket_hdr *h1;
 		struct tpacket2_hdr *h2;
 		void *raw;
 	} h;
 
-	pg_vec_pos = position / po->frames_per_block;
-	frame_offset = position % po->frames_per_block;
-
-	h.raw = po->pg_vec[pg_vec_pos] + (frame_offset * po->frame_size);
+	h.raw = frame;
 	switch (po->tp_version) {
 	case TPACKET_V1:
-		if (status != (h.h1->tp_status ? TP_STATUS_USER :
-						TP_STATUS_KERNEL))
-			return NULL;
+		h.h1->tp_status = status;
+		flush_dcache_page(virt_to_page(&h.h1->tp_status));
 		break;
 	case TPACKET_V2:
-		if (status != (h.h2->tp_status ? TP_STATUS_USER :
-						TP_STATUS_KERNEL))
-			return NULL;
+		h.h2->tp_status = status;
+		flush_dcache_page(virt_to_page(&h.h2->tp_status));
 		break;
+	default:
+		printk(KERN_ERR "TPACKET version not supported\n");
+		BUG();
 	}
-	return h.raw;
+
+	smp_wmb();
 }
 
-static void __packet_set_status(struct packet_sock *po, void *frame, int status)
+static int __packet_get_status(struct packet_sock *po, void *frame)
 {
 	union {
 		struct tpacket_hdr *h1;
@@ -243,16 +254,66 @@ static void __packet_set_status(struct packet_sock *po, void *frame, int status)
 		void *raw;
 	} h;
 
+	smp_rmb();
+
 	h.raw = frame;
 	switch (po->tp_version) {
 	case TPACKET_V1:
-		h.h1->tp_status = status;
-		break;
+		flush_dcache_page(virt_to_page(&h.h1->tp_status));
+		return h.h1->tp_status;
 	case TPACKET_V2:
-		h.h2->tp_status = status;
-		break;
+		flush_dcache_page(virt_to_page(&h.h2->tp_status));
+		return h.h2->tp_status;
+	default:
+		printk(KERN_ERR "TPACKET version not supported\n");
+		BUG();
+		return 0;
 	}
 }
+
+static void *packet_lookup_frame(struct packet_sock *po,
+		struct packet_ring_buffer *rb,
+		unsigned int position,
+		int status)
+{
+	unsigned int pg_vec_pos, frame_offset;
+	union {
+		struct tpacket_hdr *h1;
+		struct tpacket2_hdr *h2;
+		void *raw;
+	} h;
+
+	pg_vec_pos = position / rb->frames_per_block;
+	frame_offset = position % rb->frames_per_block;
+
+	h.raw = rb->pg_vec[pg_vec_pos] + (frame_offset * rb->frame_size);
+
+	if (status != __packet_get_status(po, h.raw))
+		return NULL;
+
+	return h.raw;
+}
+
+static inline void *packet_current_frame(struct packet_sock *po,
+		struct packet_ring_buffer *rb,
+		int status)
+{
+	return packet_lookup_frame(po, rb, rb->head, status);
+}
+
+static inline void *packet_previous_frame(struct packet_sock *po,
+		struct packet_ring_buffer *rb,
+		int status)
+{
+	unsigned int previous = rb->head ? rb->head - 1 : rb->frame_max;
+	return packet_lookup_frame(po, rb, previous, status);
+}
+
+static inline void packet_increment_head(struct packet_ring_buffer *buff)
+{
+	buff->head = buff->head != buff->frame_max ? buff->head+1 : 0;
+}
+
 #endif
 
 static inline struct packet_sock *pkt_sk(struct sock *sk)
@@ -311,8 +372,7 @@ static int packet_rcv_spkt(struct sk_buff *skb, struct net_device *dev,  struct
 		goto oom;
 
 	/* drop any routing info */
-	dst_release(skb->dst);
-	skb->dst = NULL;
+	skb_dst_drop(skb);
 
 	/* drop conntrack reference */
 	nf_reset(skb);
@@ -560,8 +620,7 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev, struct packet
 
 	skb_set_owner_r(skb, sk);
 	skb->dev = NULL;
-	dst_release(skb->dst);
-	skb->dst = NULL;
+	skb_dst_drop(skb);
 
 	/* drop conntrack reference */
 	nf_reset(skb);
@@ -648,7 +707,7 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev, struct packe
 		macoff = netoff - maclen;
 	}
 
-	if (macoff + snaplen > po->frame_size) {
+	if (macoff + snaplen > po->rx_ring.frame_size) {
 		if (po->copy_thresh &&
 		    atomic_read(&sk->sk_rmem_alloc) + skb->truesize <
 		    (unsigned)sk->sk_rcvbuf) {
@@ -661,16 +720,16 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev, struct packe
 			if (copy_skb)
 				skb_set_owner_r(copy_skb, sk);
 		}
-		snaplen = po->frame_size - macoff;
+		snaplen = po->rx_ring.frame_size - macoff;
 		if ((int)snaplen < 0)
 			snaplen = 0;
 	}
 
 	spin_lock(&sk->sk_receive_queue.lock);
-	h.raw = packet_lookup_frame(po, po->head, TP_STATUS_KERNEL);
+	h.raw = packet_current_frame(po, &po->rx_ring, TP_STATUS_KERNEL);
 	if (!h.raw)
 		goto ring_is_full;
-	po->head = po->head != po->frame_max ? po->head+1 : 0;
+	packet_increment_head(&po->rx_ring);
 	po->stats.tp_packets++;
 	if (copy_skb) {
 		status |= TP_STATUS_COPY;
@@ -727,7 +786,6 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev, struct packe
 
 	__packet_set_status(po, h.raw, status);
 	smp_mb();
-
 	{
 		struct page *p_start, *p_end;
 		u8 *h_end = h.raw + macoff + snaplen - 1;
@@ -760,10 +818,249 @@ ring_is_full:
 	goto drop_n_restore;
 }
 
-#endif
+static void tpacket_destruct_skb(struct sk_buff *skb)
+{
+	struct packet_sock *po = pkt_sk(skb->sk);
+	void * ph;
 
+	BUG_ON(skb == NULL);
 
-static int packet_sendmsg(struct kiocb *iocb, struct socket *sock,
+	if (likely(po->tx_ring.pg_vec)) {
+		ph = skb_shinfo(skb)->destructor_arg;
+		BUG_ON(__packet_get_status(po, ph) != TP_STATUS_SENDING);
+		BUG_ON(atomic_read(&po->tx_ring.pending) == 0);
+		atomic_dec(&po->tx_ring.pending);
+		__packet_set_status(po, ph, TP_STATUS_AVAILABLE);
+	}
+
+	sock_wfree(skb);
+}
+
+static int tpacket_fill_skb(struct packet_sock *po, struct sk_buff * skb,
+		void * frame, struct net_device *dev, int size_max,
+		__be16 proto, unsigned char * addr)
+{
+	union {
+		struct tpacket_hdr *h1;
+		struct tpacket2_hdr *h2;
+		void *raw;
+	} ph;
+	int to_write, offset, len, tp_len, nr_frags, len_max;
+	struct socket *sock = po->sk.sk_socket;
+	struct page *page;
+	void *data;
+	int err;
+
+	ph.raw = frame;
+
+	skb->protocol = proto;
+	skb->dev = dev;
+	skb->priority = po->sk.sk_priority;
+	skb_shinfo(skb)->destructor_arg = ph.raw;
+
+	switch (po->tp_version) {
+	case TPACKET_V2:
+		tp_len = ph.h2->tp_len;
+		break;
+	default:
+		tp_len = ph.h1->tp_len;
+		break;
+	}
+	if (unlikely(tp_len > size_max)) {
+		printk(KERN_ERR "packet size is too long (%d > %d)\n",
+				tp_len, size_max);
+		return -EMSGSIZE;
+	}
+
+	skb_reserve(skb, LL_RESERVED_SPACE(dev));
+	skb_reset_network_header(skb);
+
+	data = ph.raw + po->tp_hdrlen - sizeof(struct sockaddr_ll);
+	to_write = tp_len;
+
+	if (sock->type == SOCK_DGRAM) {
+		err = dev_hard_header(skb, dev, ntohs(proto), addr,
+				NULL, tp_len);
+		if (unlikely(err < 0))
+			return -EINVAL;
+	} else if (dev->hard_header_len ) {
+		/* net device doesn't like empty head */
+		if (unlikely(tp_len <= dev->hard_header_len)) {
+			printk(KERN_ERR "packet size is too short "
+					"(%d < %d)\n", tp_len,
+					dev->hard_header_len);
+			return -EINVAL;
+		}
+
+		skb_push(skb, dev->hard_header_len);
+		err = skb_store_bits(skb, 0, data,
+				dev->hard_header_len);
+		if (unlikely(err))
+			return err;
+
+		data += dev->hard_header_len;
+		to_write -= dev->hard_header_len;
+	}
+
+	err = -EFAULT;
+	page = virt_to_page(data);
+	offset = offset_in_page(data);
+	len_max = PAGE_SIZE - offset;
+	len = ((to_write > len_max) ? len_max : to_write);
+
+	skb->data_len = to_write;
+	skb->len += to_write;
+	skb->truesize += to_write;
+	atomic_add(to_write, &po->sk.sk_wmem_alloc);
+
+	while (likely(to_write)) {
+		nr_frags = skb_shinfo(skb)->nr_frags;
+
+		if (unlikely(nr_frags >= MAX_SKB_FRAGS)) {
+			printk(KERN_ERR "Packet exceed the number "
+					"of skb frags(%lu)\n",
+					MAX_SKB_FRAGS);
+			return -EFAULT;
+		}
+
+		flush_dcache_page(page);
+		get_page(page);
+		skb_fill_page_desc(skb,
+				nr_frags,
+				page++, offset, len);
+		to_write -= len;
+		offset = 0;
+		len_max = PAGE_SIZE;
+		len = ((to_write > len_max) ? len_max : to_write);
+	}
+
+	return tp_len;
+}
+
+static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
+{
+	struct socket *sock;
+	struct sk_buff *skb;
+	struct net_device *dev;
+	__be16 proto;
+	int ifindex, err, reserve = 0;
+	void * ph;
+	struct sockaddr_ll *saddr=(struct sockaddr_ll *)msg->msg_name;
+	int tp_len, size_max;
+	unsigned char *addr;
+	int len_sum = 0;
+	int status = 0;
+
+	sock = po->sk.sk_socket;
+
+	mutex_lock(&po->pg_vec_lock);
+
+	err = -EBUSY;
+	if (saddr == NULL) {
+		ifindex	= po->ifindex;
+		proto	= po->num;
+		addr	= NULL;
+	} else {
+		err = -EINVAL;
+		if (msg->msg_namelen < sizeof(struct sockaddr_ll))
+			goto out;
+		if (msg->msg_namelen < (saddr->sll_halen
+					+ offsetof(struct sockaddr_ll,
+						sll_addr)))
+			goto out;
+		ifindex	= saddr->sll_ifindex;
+		proto	= saddr->sll_protocol;
+		addr	= saddr->sll_addr;
+	}
+
+	dev = dev_get_by_index(sock_net(&po->sk), ifindex);
+	err = -ENXIO;
+	if (unlikely(dev == NULL))
+		goto out;
+
+	reserve = dev->hard_header_len;
+
+	err = -ENETDOWN;
+	if (unlikely(!(dev->flags & IFF_UP)))
+		goto out_put;
+
+	size_max = po->tx_ring.frame_size
+		- sizeof(struct skb_shared_info)
+		- po->tp_hdrlen
+		- LL_ALLOCATED_SPACE(dev)
+		- sizeof(struct sockaddr_ll);
+
+	if (size_max > dev->mtu + reserve)
+		size_max = dev->mtu + reserve;
+
+	do {
+		ph = packet_current_frame(po, &po->tx_ring,
+				TP_STATUS_SEND_REQUEST);
+
+		if (unlikely(ph == NULL)) {
+			schedule();
+			continue;
+		}
+
+		status = TP_STATUS_SEND_REQUEST;
+		skb = sock_alloc_send_skb(&po->sk,
+				LL_ALLOCATED_SPACE(dev)
+				+ sizeof(struct sockaddr_ll),
+				0, &err);
+
+		if (unlikely(skb == NULL))
+			goto out_status;
+
+		tp_len = tpacket_fill_skb(po, skb, ph, dev, size_max, proto,
+				addr);
+
+		if (unlikely(tp_len < 0)) {
+			if (po->tp_loss) {
+				__packet_set_status(po, ph,
+						TP_STATUS_AVAILABLE);
+				packet_increment_head(&po->tx_ring);
+				kfree_skb(skb);
+				continue;
+			} else {
+				status = TP_STATUS_WRONG_FORMAT;
+				err = tp_len;
+				goto out_status;
+			}
+		}
+
+		skb->destructor = tpacket_destruct_skb;
+		__packet_set_status(po, ph, TP_STATUS_SENDING);
+		atomic_inc(&po->tx_ring.pending);
+
+		status = TP_STATUS_SEND_REQUEST;
+		err = dev_queue_xmit(skb);
+		if (unlikely(err > 0 && (err = net_xmit_errno(err)) != 0))
+			goto out_xmit;
+		packet_increment_head(&po->tx_ring);
+		len_sum += tp_len;
+	}
+	while (likely((ph != NULL) || ((!(msg->msg_flags & MSG_DONTWAIT))
+					&& (atomic_read(&po->tx_ring.pending))))
+	      );
+
+	err = len_sum;
+	goto out_put;
+
+out_xmit:
+	skb->destructor = sock_wfree;
+	atomic_dec(&po->tx_ring.pending);
+out_status:
+	__packet_set_status(po, ph, status);
+	kfree_skb(skb);
+out_put:
+	dev_put(dev);
+out:
+	mutex_unlock(&po->pg_vec_lock);
+	return err;
+}
+#endif
+
+static int packet_snd(struct socket *sock,
 			  struct msghdr *msg, size_t len)
 {
 	struct sock *sk = sock->sk;
@@ -854,6 +1151,19 @@ out:
 	return err;
 }
 
+static int packet_sendmsg(struct kiocb *iocb, struct socket *sock,
+		struct msghdr *msg, size_t len)
+{
+#ifdef CONFIG_PACKET_MMAP
+	struct sock *sk = sock->sk;
+	struct packet_sock *po = pkt_sk(sk);
+	if (po->tx_ring.pg_vec)
+		return tpacket_snd(po, msg);
+	else
+#endif
+		return packet_snd(sock, msg, len);
+}
+
 /*
  *	Close a PACKET socket. This is fairly simple. We immediately go
  *	to 'closed' state and remove our protocol entry in the device list.
@@ -864,6 +1174,9 @@ static int packet_release(struct socket *sock)
 	struct sock *sk = sock->sk;
 	struct packet_sock *po;
 	struct net *net;
+#ifdef CONFIG_PACKET_MMAP
+	struct tpacket_req req;
+#endif
 
 	if (!sk)
 		return 0;
@@ -893,11 +1206,13 @@ static int packet_release(struct socket *sock)
 	packet_flush_mclist(sk);
 
 #ifdef CONFIG_PACKET_MMAP
-	if (po->pg_vec) {
-		struct tpacket_req req;
-		memset(&req, 0, sizeof(req));
-		packet_set_ring(sk, &req, 1);
-	}
+	memset(&req, 0, sizeof(req));
+
+	if (po->rx_ring.pg_vec)
+		packet_set_ring(sk, &req, 1, 0);
+
+	if (po->tx_ring.pg_vec)
+		packet_set_ring(sk, &req, 1, 1);
 #endif
 
 	/*
@@ -1253,9 +1568,9 @@ static int packet_dev_mc(struct net_device *dev, struct packet_mclist *i,
 	switch (i->type) {
 	case PACKET_MR_MULTICAST:
 		if (what > 0)
-			dev_mc_add(dev, i->addr, i->alen, 0);
+			return dev_mc_add(dev, i->addr, i->alen, 0);
 		else
-			dev_mc_delete(dev, i->addr, i->alen, 0);
+			return dev_mc_delete(dev, i->addr, i->alen, 0);
 		break;
 	case PACKET_MR_PROMISC:
 		return dev_set_promiscuity(dev, what);
@@ -1263,6 +1578,12 @@ static int packet_dev_mc(struct net_device *dev, struct packet_mclist *i,
 	case PACKET_MR_ALLMULTI:
 		return dev_set_allmulti(dev, what);
 		break;
+	case PACKET_MR_UNICAST:
+		if (what > 0)
+			return dev_unicast_add(dev, i->addr);
+		else
+			return dev_unicast_delete(dev, i->addr);
+		break;
 	default:;
 	}
 	return 0;
@@ -1391,7 +1712,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv
 	if (level != SOL_PACKET)
 		return -ENOPROTOOPT;
 
-	switch(optname)	{
+	switch (optname) {
 	case PACKET_ADD_MEMBERSHIP:
 	case PACKET_DROP_MEMBERSHIP:
 	{
@@ -1415,6 +1736,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv
 
 #ifdef CONFIG_PACKET_MMAP
 	case PACKET_RX_RING:
+	case PACKET_TX_RING:
 	{
 		struct tpacket_req req;
 
@@ -1422,7 +1744,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv
 			return -EINVAL;
 		if (copy_from_user(&req,optval,sizeof(req)))
 			return -EFAULT;
-		return packet_set_ring(sk, &req, 0);
+		return packet_set_ring(sk, &req, 0, optname == PACKET_TX_RING);
 	}
 	case PACKET_COPY_THRESH:
 	{
@@ -1442,7 +1764,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv
 
 		if (optlen != sizeof(val))
 			return -EINVAL;
-		if (po->pg_vec)
+		if (po->rx_ring.pg_vec || po->tx_ring.pg_vec)
 			return -EBUSY;
 		if (copy_from_user(&val, optval, sizeof(val)))
 			return -EFAULT;
@@ -1461,13 +1783,26 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv
 
 		if (optlen != sizeof(val))
 			return -EINVAL;
-		if (po->pg_vec)
+		if (po->rx_ring.pg_vec || po->tx_ring.pg_vec)
 			return -EBUSY;
 		if (copy_from_user(&val, optval, sizeof(val)))
 			return -EFAULT;
 		po->tp_reserve = val;
 		return 0;
 	}
+	case PACKET_LOSS:
+	{
+		unsigned int val;
+
+		if (optlen != sizeof(val))
+			return -EINVAL;
+		if (po->rx_ring.pg_vec || po->tx_ring.pg_vec)
+			return -EBUSY;
+		if (copy_from_user(&val, optval, sizeof(val)))
+			return -EFAULT;
+		po->tp_loss = !!val;
+		return 0;
+	}
 #endif
 	case PACKET_AUXDATA:
 	{
@@ -1517,7 +1852,7 @@ static int packet_getsockopt(struct socket *sock, int level, int optname,
 	if (len < 0)
 		return -EINVAL;
 
-	switch(optname)	{
+	switch (optname) {
 	case PACKET_STATISTICS:
 		if (len > sizeof(struct tpacket_stats))
 			len = sizeof(struct tpacket_stats);
@@ -1573,6 +1908,12 @@ static int packet_getsockopt(struct socket *sock, int level, int optname,
 		val = po->tp_reserve;
 		data = &val;
 		break;
+	case PACKET_LOSS:
+		if (len > sizeof(unsigned int))
+			len = sizeof(unsigned int);
+		val = po->tp_loss;
+		data = &val;
+		break;
 #endif
 	default:
 		return -ENOPROTOOPT;
@@ -1643,10 +1984,11 @@ static int packet_ioctl(struct socket *sock, unsigned int cmd,
 {
 	struct sock *sk = sock->sk;
 
-	switch(cmd) {
+	switch (cmd) {
 		case SIOCOUTQ:
 		{
-			int amount = atomic_read(&sk->sk_wmem_alloc);
+			int amount = sk_wmem_alloc_get(sk);
+
 			return put_user(amount, (int __user *)arg);
 		}
 		case SIOCINQ:
@@ -1705,13 +2047,17 @@ static unsigned int packet_poll(struct file * file, struct socket *sock,
 	unsigned int mask = datagram_poll(file, sock, wait);
 
 	spin_lock_bh(&sk->sk_receive_queue.lock);
-	if (po->pg_vec) {
-		unsigned last = po->head ? po->head-1 : po->frame_max;
-
-		if (packet_lookup_frame(po, last, TP_STATUS_USER))
+	if (po->rx_ring.pg_vec) {
+		if (!packet_previous_frame(po, &po->rx_ring, TP_STATUS_KERNEL))
 			mask |= POLLIN | POLLRDNORM;
 	}
 	spin_unlock_bh(&sk->sk_receive_queue.lock);
+	spin_lock_bh(&sk->sk_write_queue.lock);
+	if (po->tx_ring.pg_vec) {
+		if (packet_current_frame(po, &po->tx_ring, TP_STATUS_AVAILABLE))
+			mask |= POLLOUT | POLLWRNORM;
+	}
+	spin_unlock_bh(&sk->sk_write_queue.lock);
 	return mask;
 }
 
@@ -1788,21 +2134,33 @@ out_free_pgvec:
 	goto out;
 }
 
-static int packet_set_ring(struct sock *sk, struct tpacket_req *req, int closing)
+static int packet_set_ring(struct sock *sk, struct tpacket_req *req,
+		int closing, int tx_ring)
 {
 	char **pg_vec = NULL;
 	struct packet_sock *po = pkt_sk(sk);
 	int was_running, order = 0;
+	struct packet_ring_buffer *rb;
+	struct sk_buff_head *rb_queue;
 	__be16 num;
-	int err = 0;
+	int err;
 
-	if (req->tp_block_nr) {
-		int i;
+	rb = tx_ring ? &po->tx_ring : &po->rx_ring;
+	rb_queue = tx_ring ? &sk->sk_write_queue : &sk->sk_receive_queue;
 
-		/* Sanity tests and some calculations */
+	err = -EBUSY;
+	if (!closing) {
+		if (atomic_read(&po->mapped))
+			goto out;
+		if (atomic_read(&rb->pending))
+			goto out;
+	}
 
-		if (unlikely(po->pg_vec))
-			return -EBUSY;
+	if (req->tp_block_nr) {
+		/* Sanity tests and some calculations */
+		err = -EBUSY;
+		if (unlikely(rb->pg_vec))
+			goto out;
 
 		switch (po->tp_version) {
 		case TPACKET_V1:
@@ -1813,42 +2171,35 @@ static int packet_set_ring(struct sock *sk, struct tpacket_req *req, int closing
 			break;
 		}
 
+		err = -EINVAL;
 		if (unlikely((int)req->tp_block_size <= 0))
-			return -EINVAL;
+			goto out;
 		if (unlikely(req->tp_block_size & (PAGE_SIZE - 1)))
-			return -EINVAL;
+			goto out;
 		if (unlikely(req->tp_frame_size < po->tp_hdrlen +
-						  po->tp_reserve))
-			return -EINVAL;
+					po->tp_reserve))
+			goto out;
 		if (unlikely(req->tp_frame_size & (TPACKET_ALIGNMENT - 1)))
-			return -EINVAL;
+			goto out;
 
-		po->frames_per_block = req->tp_block_size/req->tp_frame_size;
-		if (unlikely(po->frames_per_block <= 0))
-			return -EINVAL;
-		if (unlikely((po->frames_per_block * req->tp_block_nr) !=
-			     req->tp_frame_nr))
-			return -EINVAL;
+		rb->frames_per_block = req->tp_block_size/req->tp_frame_size;
+		if (unlikely(rb->frames_per_block <= 0))
+			goto out;
+		if (unlikely((rb->frames_per_block * req->tp_block_nr) !=
+					req->tp_frame_nr))
+			goto out;
 
 		err = -ENOMEM;
 		order = get_order(req->tp_block_size);
 		pg_vec = alloc_pg_vec(req, order);
 		if (unlikely(!pg_vec))
 			goto out;
-
-		for (i = 0; i < req->tp_block_nr; i++) {
-			void *ptr = pg_vec[i];
-			int k;
-
-			for (k = 0; k < po->frames_per_block; k++) {
-				__packet_set_status(po, ptr, TP_STATUS_KERNEL);
-				ptr += req->tp_frame_size;
-			}
-		}
-		/* Done */
-	} else {
+	}
+	/* Done */
+	else {
+		err = -EINVAL;
 		if (unlikely(req->tp_frame_nr))
-			return -EINVAL;
+			goto out;
 	}
 
 	lock_sock(sk);
@@ -1872,23 +2223,24 @@ static int packet_set_ring(struct sock *sk, struct tpacket_req *req, int closing
 	if (closing || atomic_read(&po->mapped) == 0) {
 		err = 0;
 #define XC(a, b) ({ __typeof__ ((a)) __t; __t = (a); (a) = (b); __t; })
-
-		spin_lock_bh(&sk->sk_receive_queue.lock);
-		pg_vec = XC(po->pg_vec, pg_vec);
-		po->frame_max = (req->tp_frame_nr - 1);
-		po->head = 0;
-		po->frame_size = req->tp_frame_size;
-		spin_unlock_bh(&sk->sk_receive_queue.lock);
-
-		order = XC(po->pg_vec_order, order);
-		req->tp_block_nr = XC(po->pg_vec_len, req->tp_block_nr);
-
-		po->pg_vec_pages = req->tp_block_size/PAGE_SIZE;
-		po->prot_hook.func = po->pg_vec ? tpacket_rcv : packet_rcv;
-		skb_queue_purge(&sk->sk_receive_queue);
+		spin_lock_bh(&rb_queue->lock);
+		pg_vec = XC(rb->pg_vec, pg_vec);
+		rb->frame_max = (req->tp_frame_nr - 1);
+		rb->head = 0;
+		rb->frame_size = req->tp_frame_size;
+		spin_unlock_bh(&rb_queue->lock);
+
+		order = XC(rb->pg_vec_order, order);
+		req->tp_block_nr = XC(rb->pg_vec_len, req->tp_block_nr);
+
+		rb->pg_vec_pages = req->tp_block_size/PAGE_SIZE;
+		po->prot_hook.func = (po->rx_ring.pg_vec) ?
+						tpacket_rcv : packet_rcv;
+		skb_queue_purge(rb_queue);
 #undef XC
 		if (atomic_read(&po->mapped))
-			printk(KERN_DEBUG "packet_mmap: vma is busy: %d\n", atomic_read(&po->mapped));
+			printk(KERN_DEBUG "packet_mmap: vma is busy: %d\n",
+						atomic_read(&po->mapped));
 	}
 	mutex_unlock(&po->pg_vec_lock);
 
@@ -1909,11 +2261,13 @@ out:
 	return err;
 }
 
-static int packet_mmap(struct file *file, struct socket *sock, struct vm_area_struct *vma)
+static int packet_mmap(struct file *file, struct socket *sock,
+		struct vm_area_struct *vma)
 {
 	struct sock *sk = sock->sk;
 	struct packet_sock *po = pkt_sk(sk);
-	unsigned long size;
+	unsigned long size, expected_size;
+	struct packet_ring_buffer *rb;
 	unsigned long start;
 	int err = -EINVAL;
 	int i;
@@ -1921,26 +2275,43 @@ static int packet_mmap(struct file *file, struct socket *sock, struct vm_area_st
 	if (vma->vm_pgoff)
 		return -EINVAL;
 
-	size = vma->vm_end - vma->vm_start;
-
 	mutex_lock(&po->pg_vec_lock);
-	if (po->pg_vec == NULL)
+
+	expected_size = 0;
+	for (rb = &po->rx_ring; rb <= &po->tx_ring; rb++) {
+		if (rb->pg_vec) {
+			expected_size += rb->pg_vec_len
+						* rb->pg_vec_pages
+						* PAGE_SIZE;
+		}
+	}
+
+	if (expected_size == 0)
 		goto out;
-	if (size != po->pg_vec_len*po->pg_vec_pages*PAGE_SIZE)
+
+	size = vma->vm_end - vma->vm_start;
+	if (size != expected_size)
 		goto out;
 
 	start = vma->vm_start;
-	for (i = 0; i < po->pg_vec_len; i++) {
-		struct page *page = virt_to_page(po->pg_vec[i]);
-		int pg_num;
-
-		for (pg_num = 0; pg_num < po->pg_vec_pages; pg_num++, page++) {
-			err = vm_insert_page(vma, start, page);
-			if (unlikely(err))
-				goto out;
-			start += PAGE_SIZE;
+	for (rb = &po->rx_ring; rb <= &po->tx_ring; rb++) {
+		if (rb->pg_vec == NULL)
+			continue;
+
+		for (i = 0; i < rb->pg_vec_len; i++) {
+			struct page *page = virt_to_page(rb->pg_vec[i]);
+			int pg_num;
+
+			for (pg_num = 0; pg_num < rb->pg_vec_pages;
+					pg_num++,page++) {
+				err = vm_insert_page(vma, start, page);
+				if (unlikely(err))
+					goto out;
+				start += PAGE_SIZE;
+			}
 		}
 	}
+
 	atomic_inc(&po->mapped);
 	vma->vm_ops = &packet_mmap_ops;
 	err = 0;
diff --git a/net/phonet/pep-gprs.c b/net/phonet/pep-gprs.c
index 4aa888584d20..480839dfc560 100644
--- a/net/phonet/pep-gprs.c
+++ b/net/phonet/pep-gprs.c
@@ -115,10 +115,10 @@ static int gprs_recv(struct gprs_dev *gp, struct sk_buff *skb)
 		rskb->truesize += rskb->len;
 
 		/* Avoid nested fragments */
-		for (fs = skb_shinfo(skb)->frag_list; fs; fs = fs->next)
+		skb_walk_frags(skb, fs)
 			flen += fs->len;
 		skb->next = skb_shinfo(skb)->frag_list;
-		skb_shinfo(skb)->frag_list = NULL;
+		skb_frag_list_init(skb);
 		skb->len -= flen;
 		skb->data_len -= flen;
 		skb->truesize -= flen;
@@ -212,8 +212,9 @@ static int gprs_xmit(struct sk_buff *skb, struct net_device *dev)
 		dev->stats.tx_bytes += len;
 	}
 
-	if (!pep_writeable(sk))
-		netif_stop_queue(dev);
+	netif_stop_queue(dev);
+	if (pep_writeable(sk))
+		netif_wake_queue(dev);
 	return 0;
 }
 
diff --git a/net/phonet/pep.c b/net/phonet/pep.c
index 8ad2b5333881..eef833ea6d7b 100644
--- a/net/phonet/pep.c
+++ b/net/phonet/pep.c
@@ -940,10 +940,10 @@ int pep_write(struct sock *sk, struct sk_buff *skb)
 	rskb->truesize += rskb->len;
 
 	/* Avoid nested fragments */
-	for (fs = skb_shinfo(skb)->frag_list; fs; fs = fs->next)
+	skb_walk_frags(skb, fs)
 		flen += fs->len;
 	skb->next = skb_shinfo(skb)->frag_list;
-	skb_shinfo(skb)->frag_list = NULL;
+	skb_frag_list_init(skb);
 	skb->len -= flen;
 	skb->data_len -= flen;
 	skb->truesize -= flen;
diff --git a/net/rds/af_rds.c b/net/rds/af_rds.c
index 20cf16fc572f..b11e7e527864 100644
--- a/net/rds/af_rds.c
+++ b/net/rds/af_rds.c
@@ -35,7 +35,6 @@
 #include <linux/kernel.h>
 #include <linux/in.h>
 #include <linux/poll.h>
-#include <linux/version.h>
 #include <net/sock.h>
 
 #include "rds.h"
diff --git a/net/rds/connection.c b/net/rds/connection.c
index 273f064930a8..d14445c48304 100644
--- a/net/rds/connection.c
+++ b/net/rds/connection.c
@@ -148,14 +148,12 @@ static struct rds_connection *__rds_conn_create(__be32 laddr, __be32 faddr,
 	if (conn)
 		goto out;
 
-	conn = kmem_cache_alloc(rds_conn_slab, gfp);
+	conn = kmem_cache_zalloc(rds_conn_slab, gfp);
 	if (conn == NULL) {
 		conn = ERR_PTR(-ENOMEM);
 		goto out;
 	}
 
-	memset(conn, 0, sizeof(*conn));
-
 	INIT_HLIST_NODE(&conn->c_hash_node);
 	conn->c_version = RDS_PROTOCOL_3_0;
 	conn->c_laddr = laddr;
diff --git a/net/rds/ib.c b/net/rds/ib.c
index 4933b380985e..b9bcd32431e1 100644
--- a/net/rds/ib.c
+++ b/net/rds/ib.c
@@ -224,8 +224,8 @@ static int rds_ib_laddr_check(__be32 addr)
 	 * IB and iWARP capable NICs.
 	 */
 	cm_id = rdma_create_id(NULL, NULL, RDMA_PS_TCP);
-	if (!cm_id)
-		return -EADDRNOTAVAIL;
+	if (IS_ERR(cm_id))
+		return PTR_ERR(cm_id);
 
 	memset(&sin, 0, sizeof(sin));
 	sin.sin_family = AF_INET;
diff --git a/net/rds/ib.h b/net/rds/ib.h
index 069206cae733..455ae73047fe 100644
--- a/net/rds/ib.h
+++ b/net/rds/ib.h
@@ -333,7 +333,7 @@ int rds_ib_xmit_rdma(struct rds_connection *conn, struct rds_rdma_op *op);
 void rds_ib_send_add_credits(struct rds_connection *conn, unsigned int credits);
 void rds_ib_advertise_credits(struct rds_connection *conn, unsigned int posted);
 int rds_ib_send_grab_credits(struct rds_ib_connection *ic, u32 wanted,
-			     u32 *adv_credits, int need_posted);
+			     u32 *adv_credits, int need_posted, int max_posted);
 
 /* ib_stats.c */
 DECLARE_PER_CPU(struct rds_ib_statistics, rds_ib_stats);
diff --git a/net/rds/ib_recv.c b/net/rds/ib_recv.c
index 36d931573ff4..5709bad28329 100644
--- a/net/rds/ib_recv.c
+++ b/net/rds/ib_recv.c
@@ -524,7 +524,7 @@ void rds_ib_attempt_ack(struct rds_ib_connection *ic)
 	}
 
 	/* Can we get a send credit? */
-	if (!rds_ib_send_grab_credits(ic, 1, &adv_credits, 0)) {
+	if (!rds_ib_send_grab_credits(ic, 1, &adv_credits, 0, RDS_MAX_ADV_CREDIT)) {
 		rds_ib_stats_inc(s_ib_tx_throttle);
 		clear_bit(IB_ACK_IN_FLIGHT, &ic->i_ack_flags);
 		return;
diff --git a/net/rds/ib_ring.c b/net/rds/ib_ring.c
index 99a6ccae964c..ff97e8eda858 100644
--- a/net/rds/ib_ring.c
+++ b/net/rds/ib_ring.c
@@ -137,7 +137,7 @@ int rds_ib_ring_empty(struct rds_ib_work_ring *ring)
 
 int rds_ib_ring_low(struct rds_ib_work_ring *ring)
 {
-	return __rds_ib_ring_used(ring) <= (ring->w_nr >> 2);
+	return __rds_ib_ring_used(ring) <= (ring->w_nr >> 1);
 }
 
 /*
diff --git a/net/rds/ib_send.c b/net/rds/ib_send.c
index cb6c52cb1c4c..23bf830db2d5 100644
--- a/net/rds/ib_send.c
+++ b/net/rds/ib_send.c
@@ -311,7 +311,7 @@ void rds_ib_send_cq_comp_handler(struct ib_cq *cq, void *context)
  * and using atomic_cmpxchg when updating the two counters.
  */
 int rds_ib_send_grab_credits(struct rds_ib_connection *ic,
-			     u32 wanted, u32 *adv_credits, int need_posted)
+			     u32 wanted, u32 *adv_credits, int need_posted, int max_posted)
 {
 	unsigned int avail, posted, got = 0, advertise;
 	long oldval, newval;
@@ -351,7 +351,7 @@ try_again:
 	 * available.
 	 */
 	if (posted && (got || need_posted)) {
-		advertise = min_t(unsigned int, posted, RDS_MAX_ADV_CREDIT);
+		advertise = min_t(unsigned int, posted, max_posted);
 		newval -= IB_SET_POST_CREDITS(advertise);
 	}
 
@@ -498,7 +498,7 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
 
 	credit_alloc = work_alloc;
 	if (ic->i_flowctl) {
-		credit_alloc = rds_ib_send_grab_credits(ic, work_alloc, &posted, 0);
+		credit_alloc = rds_ib_send_grab_credits(ic, work_alloc, &posted, 0, RDS_MAX_ADV_CREDIT);
 		adv_credits += posted;
 		if (credit_alloc < work_alloc) {
 			rds_ib_ring_unalloc(&ic->i_send_ring, work_alloc - credit_alloc);
@@ -506,7 +506,7 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
 			flow_controlled++;
 		}
 		if (work_alloc == 0) {
-			rds_ib_ring_unalloc(&ic->i_send_ring, work_alloc);
+			set_bit(RDS_LL_SEND_FULL, &conn->c_flags);
 			rds_ib_stats_inc(s_ib_tx_throttle);
 			ret = -ENOMEM;
 			goto out;
@@ -571,7 +571,7 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
 		/*
 		 * Update adv_credits since we reset the ACK_REQUIRED bit.
 		 */
-		rds_ib_send_grab_credits(ic, 0, &posted, 1);
+		rds_ib_send_grab_credits(ic, 0, &posted, 1, RDS_MAX_ADV_CREDIT - adv_credits);
 		adv_credits += posted;
 		BUG_ON(adv_credits > 255);
 	} else if (ic->i_rm != rm)
diff --git a/net/rds/info.c b/net/rds/info.c
index 1d885535214d..62aeef37aefe 100644
--- a/net/rds/info.c
+++ b/net/rds/info.c
@@ -188,10 +188,7 @@ int rds_info_getsockopt(struct socket *sock, int optname, char __user *optval,
 		ret = -ENOMEM;
 		goto out;
 	}
-	down_read(&current->mm->mmap_sem);
-	ret = get_user_pages(current, current->mm, start, nr_pages, 1, 0,
-			     pages, NULL);
-	up_read(&current->mm->mmap_sem);
+	ret = get_user_pages_fast(start, nr_pages, 1, pages);
 	if (ret != nr_pages) {
 		if (ret > 0)
 			nr_pages = ret;
diff --git a/net/rds/iw.c b/net/rds/iw.c
index b732efb5b634..d16e1cbc8e83 100644
--- a/net/rds/iw.c
+++ b/net/rds/iw.c
@@ -233,8 +233,8 @@ static int rds_iw_laddr_check(__be32 addr)
 	 * IB and iWARP capable NICs.
 	 */
 	cm_id = rdma_create_id(NULL, NULL, RDMA_PS_TCP);
-	if (!cm_id)
-		return -EADDRNOTAVAIL;
+	if (IS_ERR(cm_id))
+		return PTR_ERR(cm_id);
 
 	memset(&sin, 0, sizeof(sin));
 	sin.sin_family = AF_INET;
diff --git a/net/rds/iw.h b/net/rds/iw.h
index b4fb27252895..0715dde323e7 100644
--- a/net/rds/iw.h
+++ b/net/rds/iw.h
@@ -361,7 +361,7 @@ int rds_iw_xmit_rdma(struct rds_connection *conn, struct rds_rdma_op *op);
 void rds_iw_send_add_credits(struct rds_connection *conn, unsigned int credits);
 void rds_iw_advertise_credits(struct rds_connection *conn, unsigned int posted);
 int rds_iw_send_grab_credits(struct rds_iw_connection *ic, u32 wanted,
-			     u32 *adv_credits, int need_posted);
+			     u32 *adv_credits, int need_posted, int max_posted);
 
 /* ib_stats.c */
 DECLARE_PER_CPU(struct rds_iw_statistics, rds_iw_stats);
diff --git a/net/rds/iw_recv.c b/net/rds/iw_recv.c
index fde470fa50d5..8683f5f66c4b 100644
--- a/net/rds/iw_recv.c
+++ b/net/rds/iw_recv.c
@@ -524,7 +524,7 @@ void rds_iw_attempt_ack(struct rds_iw_connection *ic)
 	}
 
 	/* Can we get a send credit? */
-	if (!rds_iw_send_grab_credits(ic, 1, &adv_credits, 0)) {
+	if (!rds_iw_send_grab_credits(ic, 1, &adv_credits, 0, RDS_MAX_ADV_CREDIT)) {
 		rds_iw_stats_inc(s_iw_tx_throttle);
 		clear_bit(IB_ACK_IN_FLIGHT, &ic->i_ack_flags);
 		return;
diff --git a/net/rds/iw_ring.c b/net/rds/iw_ring.c
index d422d4b5deef..da8e3b63f663 100644
--- a/net/rds/iw_ring.c
+++ b/net/rds/iw_ring.c
@@ -137,7 +137,7 @@ int rds_iw_ring_empty(struct rds_iw_work_ring *ring)
 
 int rds_iw_ring_low(struct rds_iw_work_ring *ring)
 {
-	return __rds_iw_ring_used(ring) <= (ring->w_nr >> 2);
+	return __rds_iw_ring_used(ring) <= (ring->w_nr >> 1);
 }
 
 
diff --git a/net/rds/iw_send.c b/net/rds/iw_send.c
index 22dd38ffd608..44a6a0551f28 100644
--- a/net/rds/iw_send.c
+++ b/net/rds/iw_send.c
@@ -347,7 +347,7 @@ void rds_iw_send_cq_comp_handler(struct ib_cq *cq, void *context)
  * and using atomic_cmpxchg when updating the two counters.
  */
 int rds_iw_send_grab_credits(struct rds_iw_connection *ic,
-			     u32 wanted, u32 *adv_credits, int need_posted)
+			     u32 wanted, u32 *adv_credits, int need_posted, int max_posted)
 {
 	unsigned int avail, posted, got = 0, advertise;
 	long oldval, newval;
@@ -387,7 +387,7 @@ try_again:
 	 * available.
 	 */
 	if (posted && (got || need_posted)) {
-		advertise = min_t(unsigned int, posted, RDS_MAX_ADV_CREDIT);
+		advertise = min_t(unsigned int, posted, max_posted);
 		newval -= IB_SET_POST_CREDITS(advertise);
 	}
 
@@ -541,7 +541,7 @@ int rds_iw_xmit(struct rds_connection *conn, struct rds_message *rm,
 
 	credit_alloc = work_alloc;
 	if (ic->i_flowctl) {
-		credit_alloc = rds_iw_send_grab_credits(ic, work_alloc, &posted, 0);
+		credit_alloc = rds_iw_send_grab_credits(ic, work_alloc, &posted, 0, RDS_MAX_ADV_CREDIT);
 		adv_credits += posted;
 		if (credit_alloc < work_alloc) {
 			rds_iw_ring_unalloc(&ic->i_send_ring, work_alloc - credit_alloc);
@@ -549,7 +549,7 @@ int rds_iw_xmit(struct rds_connection *conn, struct rds_message *rm,
 			flow_controlled++;
 		}
 		if (work_alloc == 0) {
-			rds_iw_ring_unalloc(&ic->i_send_ring, work_alloc);
+			set_bit(RDS_LL_SEND_FULL, &conn->c_flags);
 			rds_iw_stats_inc(s_iw_tx_throttle);
 			ret = -ENOMEM;
 			goto out;
@@ -614,7 +614,7 @@ int rds_iw_xmit(struct rds_connection *conn, struct rds_message *rm,
 		/*
 		 * Update adv_credits since we reset the ACK_REQUIRED bit.
 		 */
-		rds_iw_send_grab_credits(ic, 0, &posted, 1);
+		rds_iw_send_grab_credits(ic, 0, &posted, 1, RDS_MAX_ADV_CREDIT - adv_credits);
 		adv_credits += posted;
 		BUG_ON(adv_credits > 255);
 	} else if (ic->i_rm != rm)
diff --git a/net/rds/rdma.c b/net/rds/rdma.c
index eaeeb91e1119..8dc83d2caa58 100644
--- a/net/rds/rdma.c
+++ b/net/rds/rdma.c
@@ -150,12 +150,9 @@ static int rds_pin_pages(unsigned long user_addr, unsigned int nr_pages,
 {
 	int ret;
 
-	down_read(&current->mm->mmap_sem);
-	ret = get_user_pages(current, current->mm, user_addr,
-			     nr_pages, write, 0, pages, NULL);
-	up_read(&current->mm->mmap_sem);
+	ret = get_user_pages_fast(user_addr, nr_pages, write, pages);
 
-	if (0 <= ret && (unsigned) ret < nr_pages) {
+	if (ret >= 0 && ret < nr_pages) {
 		while (ret--)
 			put_page(pages[ret]);
 		ret = -EFAULT;
diff --git a/net/rds/rdma_transport.c b/net/rds/rdma_transport.c
index 7b19024f9706..7d0f901c93d5 100644
--- a/net/rds/rdma_transport.c
+++ b/net/rds/rdma_transport.c
@@ -34,7 +34,7 @@
 
 #include "rdma_transport.h"
 
-static struct rdma_cm_id *rds_iw_listen_id;
+static struct rdma_cm_id *rds_rdma_listen_id;
 
 int rds_rdma_cm_event_handler(struct rdma_cm_id *cm_id,
 			      struct rdma_cm_event *event)
@@ -161,7 +161,7 @@ static int __init rds_rdma_listen_init(void)
 
 	rdsdebug("cm %p listening on port %u\n", cm_id, RDS_PORT);
 
-	rds_iw_listen_id = cm_id;
+	rds_rdma_listen_id = cm_id;
 	cm_id = NULL;
 out:
 	if (cm_id)
@@ -171,10 +171,10 @@ out:
 
 static void rds_rdma_listen_stop(void)
 {
-	if (rds_iw_listen_id) {
-		rdsdebug("cm %p\n", rds_iw_listen_id);
-		rdma_destroy_id(rds_iw_listen_id);
-		rds_iw_listen_id = NULL;
+	if (rds_rdma_listen_id) {
+		rdsdebug("cm %p\n", rds_rdma_listen_id);
+		rdma_destroy_id(rds_rdma_listen_id);
+		rds_rdma_listen_id = NULL;
 	}
 }
 
diff --git a/net/rds/rds.h b/net/rds/rds.h
index 71794449ca4e..dbe111236783 100644
--- a/net/rds/rds.h
+++ b/net/rds/rds.h
@@ -132,7 +132,7 @@ struct rds_connection {
 #define RDS_FLAG_CONG_BITMAP	0x01
 #define RDS_FLAG_ACK_REQUIRED	0x02
 #define RDS_FLAG_RETRANSMITTED	0x04
-#define RDS_MAX_ADV_CREDIT	127
+#define RDS_MAX_ADV_CREDIT	255
 
 /*
  * Maximum space available for extension headers.
diff --git a/net/rds/send.c b/net/rds/send.c
index 104fe033203d..a4a7f428cd76 100644
--- a/net/rds/send.c
+++ b/net/rds/send.c
@@ -854,11 +854,6 @@ int rds_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg,
 
 	rm->m_daddr = daddr;
 
-	/* Parse any control messages the user may have included. */
-	ret = rds_cmsg_send(rs, rm, msg, &allocated_mr);
-	if (ret)
-		goto out;
-
 	/* rds_conn_create has a spinlock that runs with IRQ off.
 	 * Caching the conn in the socket helps a lot. */
 	if (rs->rs_conn && rs->rs_conn->c_faddr == daddr)
@@ -874,6 +869,11 @@ int rds_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg,
 		rs->rs_conn = conn;
 	}
 
+	/* Parse any control messages the user may have included. */
+	ret = rds_cmsg_send(rs, rm, msg, &allocated_mr);
+	if (ret)
+		goto out;
+
 	if ((rm->m_rdma_cookie || rm->m_rdma_op)
 	 && conn->c_trans->xmit_rdma == NULL) {
 		if (printk_ratelimit())
diff --git a/net/rfkill/Kconfig b/net/rfkill/Kconfig
index 7f807b30cfbb..eaf765876458 100644
--- a/net/rfkill/Kconfig
+++ b/net/rfkill/Kconfig
@@ -10,22 +10,15 @@ menuconfig RFKILL
 	  To compile this driver as a module, choose M here: the
 	  module will be called rfkill.
 
-config RFKILL_INPUT
-	tristate "Input layer to RF switch connector"
-	depends on RFKILL && INPUT
-	help
-	  Say Y here if you want kernel automatically toggle state
-	  of RF switches on and off when user presses appropriate
-	  button or a key on the keyboard. Without this module you
-	  need a some kind of userspace application to control
-	  state of the switches.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called rfkill-input.
-
 # LED trigger support
 config RFKILL_LEDS
 	bool
-	depends on RFKILL && LEDS_TRIGGERS
+	depends on RFKILL
+	depends on LEDS_TRIGGERS = y || RFKILL = LEDS_TRIGGERS
 	default y
 
+config RFKILL_INPUT
+	bool "RF switch input support" if EMBEDDED
+	depends on RFKILL
+	depends on INPUT = y || RFKILL = INPUT
+	default y if !EMBEDDED
diff --git a/net/rfkill/Makefile b/net/rfkill/Makefile
index b38c430be057..662105352691 100644
--- a/net/rfkill/Makefile
+++ b/net/rfkill/Makefile
@@ -2,5 +2,6 @@
 # Makefile for the RF switch subsystem.
 #
 
-obj-$(CONFIG_RFKILL)			+= rfkill.o
-obj-$(CONFIG_RFKILL_INPUT)		+= rfkill-input.o
+rfkill-y			+= core.o
+rfkill-$(CONFIG_RFKILL_INPUT)	+= input.o
+obj-$(CONFIG_RFKILL)		+= rfkill.o
diff --git a/net/rfkill/core.c b/net/rfkill/core.c
new file mode 100644
index 000000000000..79693fe2001e
--- /dev/null
+++ b/net/rfkill/core.c
@@ -0,0 +1,1225 @@
+/*
+ * Copyright (C) 2006 - 2007 Ivo van Doorn
+ * Copyright (C) 2007 Dmitry Torokhov
+ * Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the
+ * Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/workqueue.h>
+#include <linux/capability.h>
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/rfkill.h>
+#include <linux/spinlock.h>
+#include <linux/miscdevice.h>
+#include <linux/wait.h>
+#include <linux/poll.h>
+#include <linux/fs.h>
+
+#include "rfkill.h"
+
+#define POLL_INTERVAL		(5 * HZ)
+
+#define RFKILL_BLOCK_HW		BIT(0)
+#define RFKILL_BLOCK_SW		BIT(1)
+#define RFKILL_BLOCK_SW_PREV	BIT(2)
+#define RFKILL_BLOCK_ANY	(RFKILL_BLOCK_HW |\
+				 RFKILL_BLOCK_SW |\
+				 RFKILL_BLOCK_SW_PREV)
+#define RFKILL_BLOCK_SW_SETCALL	BIT(31)
+
+struct rfkill {
+	spinlock_t		lock;
+
+	const char		*name;
+	enum rfkill_type	type;
+
+	unsigned long		state;
+
+	u32			idx;
+
+	bool			registered;
+	bool			persistent;
+
+	const struct rfkill_ops	*ops;
+	void			*data;
+
+#ifdef CONFIG_RFKILL_LEDS
+	struct led_trigger	led_trigger;
+	const char		*ledtrigname;
+#endif
+
+	struct device		dev;
+	struct list_head	node;
+
+	struct delayed_work	poll_work;
+	struct work_struct	uevent_work;
+	struct work_struct	sync_work;
+};
+#define to_rfkill(d)	container_of(d, struct rfkill, dev)
+
+struct rfkill_int_event {
+	struct list_head	list;
+	struct rfkill_event	ev;
+};
+
+struct rfkill_data {
+	struct list_head	list;
+	struct list_head	events;
+	struct mutex		mtx;
+	wait_queue_head_t	read_wait;
+	bool			input_handler;
+};
+
+
+MODULE_AUTHOR("Ivo van Doorn <IvDoorn@gmail.com>");
+MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>");
+MODULE_DESCRIPTION("RF switch support");
+MODULE_LICENSE("GPL");
+
+
+/*
+ * The locking here should be made much smarter, we currently have
+ * a bit of a stupid situation because drivers might want to register
+ * the rfkill struct under their own lock, and take this lock during
+ * rfkill method calls -- which will cause an AB-BA deadlock situation.
+ *
+ * To fix that, we need to rework this code here to be mostly lock-free
+ * and only use the mutex for list manipulations, not to protect the
+ * various other global variables. Then we can avoid holding the mutex
+ * around driver operations, and all is happy.
+ */
+static LIST_HEAD(rfkill_list);	/* list of registered rf switches */
+static DEFINE_MUTEX(rfkill_global_mutex);
+static LIST_HEAD(rfkill_fds);	/* list of open fds of /dev/rfkill */
+
+static unsigned int rfkill_default_state = 1;
+module_param_named(default_state, rfkill_default_state, uint, 0444);
+MODULE_PARM_DESC(default_state,
+		 "Default initial state for all radio types, 0 = radio off");
+
+static struct {
+	bool cur, sav;
+} rfkill_global_states[NUM_RFKILL_TYPES];
+
+static bool rfkill_epo_lock_active;
+
+
+#ifdef CONFIG_RFKILL_LEDS
+static void rfkill_led_trigger_event(struct rfkill *rfkill)
+{
+	struct led_trigger *trigger;
+
+	if (!rfkill->registered)
+		return;
+
+	trigger = &rfkill->led_trigger;
+
+	if (rfkill->state & RFKILL_BLOCK_ANY)
+		led_trigger_event(trigger, LED_OFF);
+	else
+		led_trigger_event(trigger, LED_FULL);
+}
+
+static void rfkill_led_trigger_activate(struct led_classdev *led)
+{
+	struct rfkill *rfkill;
+
+	rfkill = container_of(led->trigger, struct rfkill, led_trigger);
+
+	rfkill_led_trigger_event(rfkill);
+}
+
+const char *rfkill_get_led_trigger_name(struct rfkill *rfkill)
+{
+	return rfkill->led_trigger.name;
+}
+EXPORT_SYMBOL(rfkill_get_led_trigger_name);
+
+void rfkill_set_led_trigger_name(struct rfkill *rfkill, const char *name)
+{
+	BUG_ON(!rfkill);
+
+	rfkill->ledtrigname = name;
+}
+EXPORT_SYMBOL(rfkill_set_led_trigger_name);
+
+static int rfkill_led_trigger_register(struct rfkill *rfkill)
+{
+	rfkill->led_trigger.name = rfkill->ledtrigname
+					? : dev_name(&rfkill->dev);
+	rfkill->led_trigger.activate = rfkill_led_trigger_activate;
+	return led_trigger_register(&rfkill->led_trigger);
+}
+
+static void rfkill_led_trigger_unregister(struct rfkill *rfkill)
+{
+	led_trigger_unregister(&rfkill->led_trigger);
+}
+#else
+static void rfkill_led_trigger_event(struct rfkill *rfkill)
+{
+}
+
+static inline int rfkill_led_trigger_register(struct rfkill *rfkill)
+{
+	return 0;
+}
+
+static inline void rfkill_led_trigger_unregister(struct rfkill *rfkill)
+{
+}
+#endif /* CONFIG_RFKILL_LEDS */
+
+static void rfkill_fill_event(struct rfkill_event *ev, struct rfkill *rfkill,
+			      enum rfkill_operation op)
+{
+	unsigned long flags;
+
+	ev->idx = rfkill->idx;
+	ev->type = rfkill->type;
+	ev->op = op;
+
+	spin_lock_irqsave(&rfkill->lock, flags);
+	ev->hard = !!(rfkill->state & RFKILL_BLOCK_HW);
+	ev->soft = !!(rfkill->state & (RFKILL_BLOCK_SW |
+					RFKILL_BLOCK_SW_PREV));
+	spin_unlock_irqrestore(&rfkill->lock, flags);
+}
+
+static void rfkill_send_events(struct rfkill *rfkill, enum rfkill_operation op)
+{
+	struct rfkill_data *data;
+	struct rfkill_int_event *ev;
+
+	list_for_each_entry(data, &rfkill_fds, list) {
+		ev = kzalloc(sizeof(*ev), GFP_KERNEL);
+		if (!ev)
+			continue;
+		rfkill_fill_event(&ev->ev, rfkill, op);
+		mutex_lock(&data->mtx);
+		list_add_tail(&ev->list, &data->events);
+		mutex_unlock(&data->mtx);
+		wake_up_interruptible(&data->read_wait);
+	}
+}
+
+static void rfkill_event(struct rfkill *rfkill)
+{
+	if (!rfkill->registered)
+		return;
+
+	kobject_uevent(&rfkill->dev.kobj, KOBJ_CHANGE);
+
+	/* also send event to /dev/rfkill */
+	rfkill_send_events(rfkill, RFKILL_OP_CHANGE);
+}
+
+static bool __rfkill_set_hw_state(struct rfkill *rfkill,
+				  bool blocked, bool *change)
+{
+	unsigned long flags;
+	bool prev, any;
+
+	BUG_ON(!rfkill);
+
+	spin_lock_irqsave(&rfkill->lock, flags);
+	prev = !!(rfkill->state & RFKILL_BLOCK_HW);
+	if (blocked)
+		rfkill->state |= RFKILL_BLOCK_HW;
+	else
+		rfkill->state &= ~RFKILL_BLOCK_HW;
+	*change = prev != blocked;
+	any = rfkill->state & RFKILL_BLOCK_ANY;
+	spin_unlock_irqrestore(&rfkill->lock, flags);
+
+	rfkill_led_trigger_event(rfkill);
+
+	return any;
+}
+
+/**
+ * rfkill_set_block - wrapper for set_block method
+ *
+ * @rfkill: the rfkill struct to use
+ * @blocked: the new software state
+ *
+ * Calls the set_block method (when applicable) and handles notifications
+ * etc. as well.
+ */
+static void rfkill_set_block(struct rfkill *rfkill, bool blocked)
+{
+	unsigned long flags;
+	int err;
+
+	if (unlikely(rfkill->dev.power.power_state.event & PM_EVENT_SLEEP))
+		return;
+
+	/*
+	 * Some platforms (...!) generate input events which affect the
+	 * _hard_ kill state -- whenever something tries to change the
+	 * current software state query the hardware state too.
+	 */
+	if (rfkill->ops->query)
+		rfkill->ops->query(rfkill, rfkill->data);
+
+	spin_lock_irqsave(&rfkill->lock, flags);
+	if (rfkill->state & RFKILL_BLOCK_SW)
+		rfkill->state |= RFKILL_BLOCK_SW_PREV;
+	else
+		rfkill->state &= ~RFKILL_BLOCK_SW_PREV;
+
+	if (blocked)
+		rfkill->state |= RFKILL_BLOCK_SW;
+	else
+		rfkill->state &= ~RFKILL_BLOCK_SW;
+
+	rfkill->state |= RFKILL_BLOCK_SW_SETCALL;
+	spin_unlock_irqrestore(&rfkill->lock, flags);
+
+	err = rfkill->ops->set_block(rfkill->data, blocked);
+
+	spin_lock_irqsave(&rfkill->lock, flags);
+	if (err) {
+		/*
+		 * Failed -- reset status to _prev, this may be different
+		 * from what set set _PREV to earlier in this function
+		 * if rfkill_set_sw_state was invoked.
+		 */
+		if (rfkill->state & RFKILL_BLOCK_SW_PREV)
+			rfkill->state |= RFKILL_BLOCK_SW;
+		else
+			rfkill->state &= ~RFKILL_BLOCK_SW;
+	}
+	rfkill->state &= ~RFKILL_BLOCK_SW_SETCALL;
+	rfkill->state &= ~RFKILL_BLOCK_SW_PREV;
+	spin_unlock_irqrestore(&rfkill->lock, flags);
+
+	rfkill_led_trigger_event(rfkill);
+	rfkill_event(rfkill);
+}
+
+#ifdef CONFIG_RFKILL_INPUT
+static atomic_t rfkill_input_disabled = ATOMIC_INIT(0);
+
+/**
+ * __rfkill_switch_all - Toggle state of all switches of given type
+ * @type: type of interfaces to be affected
+ * @state: the new state
+ *
+ * This function sets the state of all switches of given type,
+ * unless a specific switch is claimed by userspace (in which case,
+ * that switch is left alone) or suspended.
+ *
+ * Caller must have acquired rfkill_global_mutex.
+ */
+static void __rfkill_switch_all(const enum rfkill_type type, bool blocked)
+{
+	struct rfkill *rfkill;
+
+	rfkill_global_states[type].cur = blocked;
+	list_for_each_entry(rfkill, &rfkill_list, node) {
+		if (rfkill->type != type)
+			continue;
+
+		rfkill_set_block(rfkill, blocked);
+	}
+}
+
+/**
+ * rfkill_switch_all - Toggle state of all switches of given type
+ * @type: type of interfaces to be affected
+ * @state: the new state
+ *
+ * Acquires rfkill_global_mutex and calls __rfkill_switch_all(@type, @state).
+ * Please refer to __rfkill_switch_all() for details.
+ *
+ * Does nothing if the EPO lock is active.
+ */
+void rfkill_switch_all(enum rfkill_type type, bool blocked)
+{
+	if (atomic_read(&rfkill_input_disabled))
+		return;
+
+	mutex_lock(&rfkill_global_mutex);
+
+	if (!rfkill_epo_lock_active)
+		__rfkill_switch_all(type, blocked);
+
+	mutex_unlock(&rfkill_global_mutex);
+}
+
+/**
+ * rfkill_epo - emergency power off all transmitters
+ *
+ * This kicks all non-suspended rfkill devices to RFKILL_STATE_SOFT_BLOCKED,
+ * ignoring everything in its path but rfkill_global_mutex and rfkill->mutex.
+ *
+ * The global state before the EPO is saved and can be restored later
+ * using rfkill_restore_states().
+ */
+void rfkill_epo(void)
+{
+	struct rfkill *rfkill;
+	int i;
+
+	if (atomic_read(&rfkill_input_disabled))
+		return;
+
+	mutex_lock(&rfkill_global_mutex);
+
+	rfkill_epo_lock_active = true;
+	list_for_each_entry(rfkill, &rfkill_list, node)
+		rfkill_set_block(rfkill, true);
+
+	for (i = 0; i < NUM_RFKILL_TYPES; i++) {
+		rfkill_global_states[i].sav = rfkill_global_states[i].cur;
+		rfkill_global_states[i].cur = true;
+	}
+
+	mutex_unlock(&rfkill_global_mutex);
+}
+
+/**
+ * rfkill_restore_states - restore global states
+ *
+ * Restore (and sync switches to) the global state from the
+ * states in rfkill_default_states.  This can undo the effects of
+ * a call to rfkill_epo().
+ */
+void rfkill_restore_states(void)
+{
+	int i;
+
+	if (atomic_read(&rfkill_input_disabled))
+		return;
+
+	mutex_lock(&rfkill_global_mutex);
+
+	rfkill_epo_lock_active = false;
+	for (i = 0; i < NUM_RFKILL_TYPES; i++)
+		__rfkill_switch_all(i, rfkill_global_states[i].sav);
+	mutex_unlock(&rfkill_global_mutex);
+}
+
+/**
+ * rfkill_remove_epo_lock - unlock state changes
+ *
+ * Used by rfkill-input manually unlock state changes, when
+ * the EPO switch is deactivated.
+ */
+void rfkill_remove_epo_lock(void)
+{
+	if (atomic_read(&rfkill_input_disabled))
+		return;
+
+	mutex_lock(&rfkill_global_mutex);
+	rfkill_epo_lock_active = false;
+	mutex_unlock(&rfkill_global_mutex);
+}
+
+/**
+ * rfkill_is_epo_lock_active - returns true EPO is active
+ *
+ * Returns 0 (false) if there is NOT an active EPO contidion,
+ * and 1 (true) if there is an active EPO contition, which
+ * locks all radios in one of the BLOCKED states.
+ *
+ * Can be called in atomic context.
+ */
+bool rfkill_is_epo_lock_active(void)
+{
+	return rfkill_epo_lock_active;
+}
+
+/**
+ * rfkill_get_global_sw_state - returns global state for a type
+ * @type: the type to get the global state of
+ *
+ * Returns the current global state for a given wireless
+ * device type.
+ */
+bool rfkill_get_global_sw_state(const enum rfkill_type type)
+{
+	return rfkill_global_states[type].cur;
+}
+#endif
+
+
+bool rfkill_set_hw_state(struct rfkill *rfkill, bool blocked)
+{
+	bool ret, change;
+
+	ret = __rfkill_set_hw_state(rfkill, blocked, &change);
+
+	if (!rfkill->registered)
+		return ret;
+
+	if (change)
+		schedule_work(&rfkill->uevent_work);
+
+	return ret;
+}
+EXPORT_SYMBOL(rfkill_set_hw_state);
+
+static void __rfkill_set_sw_state(struct rfkill *rfkill, bool blocked)
+{
+	u32 bit = RFKILL_BLOCK_SW;
+
+	/* if in a ops->set_block right now, use other bit */
+	if (rfkill->state & RFKILL_BLOCK_SW_SETCALL)
+		bit = RFKILL_BLOCK_SW_PREV;
+
+	if (blocked)
+		rfkill->state |= bit;
+	else
+		rfkill->state &= ~bit;
+}
+
+bool rfkill_set_sw_state(struct rfkill *rfkill, bool blocked)
+{
+	unsigned long flags;
+	bool prev, hwblock;
+
+	BUG_ON(!rfkill);
+
+	spin_lock_irqsave(&rfkill->lock, flags);
+	prev = !!(rfkill->state & RFKILL_BLOCK_SW);
+	__rfkill_set_sw_state(rfkill, blocked);
+	hwblock = !!(rfkill->state & RFKILL_BLOCK_HW);
+	blocked = blocked || hwblock;
+	spin_unlock_irqrestore(&rfkill->lock, flags);
+
+	if (!rfkill->registered)
+		return blocked;
+
+	if (prev != blocked && !hwblock)
+		schedule_work(&rfkill->uevent_work);
+
+	rfkill_led_trigger_event(rfkill);
+
+	return blocked;
+}
+EXPORT_SYMBOL(rfkill_set_sw_state);
+
+void rfkill_init_sw_state(struct rfkill *rfkill, bool blocked)
+{
+	unsigned long flags;
+
+	BUG_ON(!rfkill);
+	BUG_ON(rfkill->registered);
+
+	spin_lock_irqsave(&rfkill->lock, flags);
+	__rfkill_set_sw_state(rfkill, blocked);
+	rfkill->persistent = true;
+	spin_unlock_irqrestore(&rfkill->lock, flags);
+}
+EXPORT_SYMBOL(rfkill_init_sw_state);
+
+void rfkill_set_states(struct rfkill *rfkill, bool sw, bool hw)
+{
+	unsigned long flags;
+	bool swprev, hwprev;
+
+	BUG_ON(!rfkill);
+
+	spin_lock_irqsave(&rfkill->lock, flags);
+
+	/*
+	 * No need to care about prev/setblock ... this is for uevent only
+	 * and that will get triggered by rfkill_set_block anyway.
+	 */
+	swprev = !!(rfkill->state & RFKILL_BLOCK_SW);
+	hwprev = !!(rfkill->state & RFKILL_BLOCK_HW);
+	__rfkill_set_sw_state(rfkill, sw);
+
+	spin_unlock_irqrestore(&rfkill->lock, flags);
+
+	if (!rfkill->registered) {
+		rfkill->persistent = true;
+	} else {
+		if (swprev != sw || hwprev != hw)
+			schedule_work(&rfkill->uevent_work);
+
+		rfkill_led_trigger_event(rfkill);
+	}
+}
+EXPORT_SYMBOL(rfkill_set_states);
+
+static ssize_t rfkill_name_show(struct device *dev,
+				struct device_attribute *attr,
+				char *buf)
+{
+	struct rfkill *rfkill = to_rfkill(dev);
+
+	return sprintf(buf, "%s\n", rfkill->name);
+}
+
+static const char *rfkill_get_type_str(enum rfkill_type type)
+{
+	switch (type) {
+	case RFKILL_TYPE_WLAN:
+		return "wlan";
+	case RFKILL_TYPE_BLUETOOTH:
+		return "bluetooth";
+	case RFKILL_TYPE_UWB:
+		return "ultrawideband";
+	case RFKILL_TYPE_WIMAX:
+		return "wimax";
+	case RFKILL_TYPE_WWAN:
+		return "wwan";
+	default:
+		BUG();
+	}
+
+	BUILD_BUG_ON(NUM_RFKILL_TYPES != RFKILL_TYPE_WWAN + 1);
+}
+
+static ssize_t rfkill_type_show(struct device *dev,
+				struct device_attribute *attr,
+				char *buf)
+{
+	struct rfkill *rfkill = to_rfkill(dev);
+
+	return sprintf(buf, "%s\n", rfkill_get_type_str(rfkill->type));
+}
+
+static ssize_t rfkill_idx_show(struct device *dev,
+			       struct device_attribute *attr,
+			       char *buf)
+{
+	struct rfkill *rfkill = to_rfkill(dev);
+
+	return sprintf(buf, "%d\n", rfkill->idx);
+}
+
+static ssize_t rfkill_persistent_show(struct device *dev,
+			       struct device_attribute *attr,
+			       char *buf)
+{
+	struct rfkill *rfkill = to_rfkill(dev);
+
+	return sprintf(buf, "%d\n", rfkill->persistent);
+}
+
+static u8 user_state_from_blocked(unsigned long state)
+{
+	if (state & RFKILL_BLOCK_HW)
+		return RFKILL_USER_STATE_HARD_BLOCKED;
+	if (state & RFKILL_BLOCK_SW)
+		return RFKILL_USER_STATE_SOFT_BLOCKED;
+
+	return RFKILL_USER_STATE_UNBLOCKED;
+}
+
+static ssize_t rfkill_state_show(struct device *dev,
+				 struct device_attribute *attr,
+				 char *buf)
+{
+	struct rfkill *rfkill = to_rfkill(dev);
+	unsigned long flags;
+	u32 state;
+
+	spin_lock_irqsave(&rfkill->lock, flags);
+	state = rfkill->state;
+	spin_unlock_irqrestore(&rfkill->lock, flags);
+
+	return sprintf(buf, "%d\n", user_state_from_blocked(state));
+}
+
+static ssize_t rfkill_state_store(struct device *dev,
+				  struct device_attribute *attr,
+				  const char *buf, size_t count)
+{
+	/*
+	 * The intention was that userspace can only take control over
+	 * a given device when/if rfkill-input doesn't control it due
+	 * to user_claim. Since user_claim is currently unsupported,
+	 * we never support changing the state from userspace -- this
+	 * can be implemented again later.
+	 */
+
+	return -EPERM;
+}
+
+static ssize_t rfkill_claim_show(struct device *dev,
+				 struct device_attribute *attr,
+				 char *buf)
+{
+	return sprintf(buf, "%d\n", 0);
+}
+
+static ssize_t rfkill_claim_store(struct device *dev,
+				  struct device_attribute *attr,
+				  const char *buf, size_t count)
+{
+	return -EOPNOTSUPP;
+}
+
+static struct device_attribute rfkill_dev_attrs[] = {
+	__ATTR(name, S_IRUGO, rfkill_name_show, NULL),
+	__ATTR(type, S_IRUGO, rfkill_type_show, NULL),
+	__ATTR(index, S_IRUGO, rfkill_idx_show, NULL),
+	__ATTR(persistent, S_IRUGO, rfkill_persistent_show, NULL),
+	__ATTR(state, S_IRUGO|S_IWUSR, rfkill_state_show, rfkill_state_store),
+	__ATTR(claim, S_IRUGO|S_IWUSR, rfkill_claim_show, rfkill_claim_store),
+	__ATTR_NULL
+};
+
+static void rfkill_release(struct device *dev)
+{
+	struct rfkill *rfkill = to_rfkill(dev);
+
+	kfree(rfkill);
+}
+
+static int rfkill_dev_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+	struct rfkill *rfkill = to_rfkill(dev);
+	unsigned long flags;
+	u32 state;
+	int error;
+
+	error = add_uevent_var(env, "RFKILL_NAME=%s", rfkill->name);
+	if (error)
+		return error;
+	error = add_uevent_var(env, "RFKILL_TYPE=%s",
+			       rfkill_get_type_str(rfkill->type));
+	if (error)
+		return error;
+	spin_lock_irqsave(&rfkill->lock, flags);
+	state = rfkill->state;
+	spin_unlock_irqrestore(&rfkill->lock, flags);
+	error = add_uevent_var(env, "RFKILL_STATE=%d",
+			       user_state_from_blocked(state));
+	return error;
+}
+
+void rfkill_pause_polling(struct rfkill *rfkill)
+{
+	BUG_ON(!rfkill);
+
+	if (!rfkill->ops->poll)
+		return;
+
+	cancel_delayed_work_sync(&rfkill->poll_work);
+}
+EXPORT_SYMBOL(rfkill_pause_polling);
+
+void rfkill_resume_polling(struct rfkill *rfkill)
+{
+	BUG_ON(!rfkill);
+
+	if (!rfkill->ops->poll)
+		return;
+
+	schedule_work(&rfkill->poll_work.work);
+}
+EXPORT_SYMBOL(rfkill_resume_polling);
+
+static int rfkill_suspend(struct device *dev, pm_message_t state)
+{
+	struct rfkill *rfkill = to_rfkill(dev);
+
+	rfkill_pause_polling(rfkill);
+
+	return 0;
+}
+
+static int rfkill_resume(struct device *dev)
+{
+	struct rfkill *rfkill = to_rfkill(dev);
+	bool cur;
+
+	if (!rfkill->persistent) {
+		cur = !!(rfkill->state & RFKILL_BLOCK_SW);
+		rfkill_set_block(rfkill, cur);
+	}
+
+	rfkill_resume_polling(rfkill);
+
+	return 0;
+}
+
+static struct class rfkill_class = {
+	.name		= "rfkill",
+	.dev_release	= rfkill_release,
+	.dev_attrs	= rfkill_dev_attrs,
+	.dev_uevent	= rfkill_dev_uevent,
+	.suspend	= rfkill_suspend,
+	.resume		= rfkill_resume,
+};
+
+bool rfkill_blocked(struct rfkill *rfkill)
+{
+	unsigned long flags;
+	u32 state;
+
+	spin_lock_irqsave(&rfkill->lock, flags);
+	state = rfkill->state;
+	spin_unlock_irqrestore(&rfkill->lock, flags);
+
+	return !!(state & RFKILL_BLOCK_ANY);
+}
+EXPORT_SYMBOL(rfkill_blocked);
+
+
+struct rfkill * __must_check rfkill_alloc(const char *name,
+					  struct device *parent,
+					  const enum rfkill_type type,
+					  const struct rfkill_ops *ops,
+					  void *ops_data)
+{
+	struct rfkill *rfkill;
+	struct device *dev;
+
+	if (WARN_ON(!ops))
+		return NULL;
+
+	if (WARN_ON(!ops->set_block))
+		return NULL;
+
+	if (WARN_ON(!name))
+		return NULL;
+
+	if (WARN_ON(type == RFKILL_TYPE_ALL || type >= NUM_RFKILL_TYPES))
+		return NULL;
+
+	rfkill = kzalloc(sizeof(*rfkill), GFP_KERNEL);
+	if (!rfkill)
+		return NULL;
+
+	spin_lock_init(&rfkill->lock);
+	INIT_LIST_HEAD(&rfkill->node);
+	rfkill->type = type;
+	rfkill->name = name;
+	rfkill->ops = ops;
+	rfkill->data = ops_data;
+
+	dev = &rfkill->dev;
+	dev->class = &rfkill_class;
+	dev->parent = parent;
+	device_initialize(dev);
+
+	return rfkill;
+}
+EXPORT_SYMBOL(rfkill_alloc);
+
+static void rfkill_poll(struct work_struct *work)
+{
+	struct rfkill *rfkill;
+
+	rfkill = container_of(work, struct rfkill, poll_work.work);
+
+	/*
+	 * Poll hardware state -- driver will use one of the
+	 * rfkill_set{,_hw,_sw}_state functions and use its
+	 * return value to update the current status.
+	 */
+	rfkill->ops->poll(rfkill, rfkill->data);
+
+	schedule_delayed_work(&rfkill->poll_work,
+		round_jiffies_relative(POLL_INTERVAL));
+}
+
+static void rfkill_uevent_work(struct work_struct *work)
+{
+	struct rfkill *rfkill;
+
+	rfkill = container_of(work, struct rfkill, uevent_work);
+
+	mutex_lock(&rfkill_global_mutex);
+	rfkill_event(rfkill);
+	mutex_unlock(&rfkill_global_mutex);
+}
+
+static void rfkill_sync_work(struct work_struct *work)
+{
+	struct rfkill *rfkill;
+	bool cur;
+
+	rfkill = container_of(work, struct rfkill, sync_work);
+
+	mutex_lock(&rfkill_global_mutex);
+	cur = rfkill_global_states[rfkill->type].cur;
+	rfkill_set_block(rfkill, cur);
+	mutex_unlock(&rfkill_global_mutex);
+}
+
+int __must_check rfkill_register(struct rfkill *rfkill)
+{
+	static unsigned long rfkill_no;
+	struct device *dev = &rfkill->dev;
+	int error;
+
+	BUG_ON(!rfkill);
+
+	mutex_lock(&rfkill_global_mutex);
+
+	if (rfkill->registered) {
+		error = -EALREADY;
+		goto unlock;
+	}
+
+	rfkill->idx = rfkill_no;
+	dev_set_name(dev, "rfkill%lu", rfkill_no);
+	rfkill_no++;
+
+	list_add_tail(&rfkill->node, &rfkill_list);
+
+	error = device_add(dev);
+	if (error)
+		goto remove;
+
+	error = rfkill_led_trigger_register(rfkill);
+	if (error)
+		goto devdel;
+
+	rfkill->registered = true;
+
+	INIT_DELAYED_WORK(&rfkill->poll_work, rfkill_poll);
+	INIT_WORK(&rfkill->uevent_work, rfkill_uevent_work);
+	INIT_WORK(&rfkill->sync_work, rfkill_sync_work);
+
+	if (rfkill->ops->poll)
+		schedule_delayed_work(&rfkill->poll_work,
+			round_jiffies_relative(POLL_INTERVAL));
+
+	if (!rfkill->persistent || rfkill_epo_lock_active) {
+		schedule_work(&rfkill->sync_work);
+	} else {
+#ifdef CONFIG_RFKILL_INPUT
+		bool soft_blocked = !!(rfkill->state & RFKILL_BLOCK_SW);
+
+		if (!atomic_read(&rfkill_input_disabled))
+			__rfkill_switch_all(rfkill->type, soft_blocked);
+#endif
+	}
+
+	rfkill_send_events(rfkill, RFKILL_OP_ADD);
+
+	mutex_unlock(&rfkill_global_mutex);
+	return 0;
+
+ devdel:
+	device_del(&rfkill->dev);
+ remove:
+	list_del_init(&rfkill->node);
+ unlock:
+	mutex_unlock(&rfkill_global_mutex);
+	return error;
+}
+EXPORT_SYMBOL(rfkill_register);
+
+void rfkill_unregister(struct rfkill *rfkill)
+{
+	BUG_ON(!rfkill);
+
+	if (rfkill->ops->poll)
+		cancel_delayed_work_sync(&rfkill->poll_work);
+
+	cancel_work_sync(&rfkill->uevent_work);
+	cancel_work_sync(&rfkill->sync_work);
+
+	rfkill->registered = false;
+
+	device_del(&rfkill->dev);
+
+	mutex_lock(&rfkill_global_mutex);
+	rfkill_send_events(rfkill, RFKILL_OP_DEL);
+	list_del_init(&rfkill->node);
+	mutex_unlock(&rfkill_global_mutex);
+
+	rfkill_led_trigger_unregister(rfkill);
+}
+EXPORT_SYMBOL(rfkill_unregister);
+
+void rfkill_destroy(struct rfkill *rfkill)
+{
+	if (rfkill)
+		put_device(&rfkill->dev);
+}
+EXPORT_SYMBOL(rfkill_destroy);
+
+static int rfkill_fop_open(struct inode *inode, struct file *file)
+{
+	struct rfkill_data *data;
+	struct rfkill *rfkill;
+	struct rfkill_int_event *ev, *tmp;
+
+	data = kzalloc(sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	INIT_LIST_HEAD(&data->events);
+	mutex_init(&data->mtx);
+	init_waitqueue_head(&data->read_wait);
+
+	mutex_lock(&rfkill_global_mutex);
+	mutex_lock(&data->mtx);
+	/*
+	 * start getting events from elsewhere but hold mtx to get
+	 * startup events added first
+	 */
+	list_add(&data->list, &rfkill_fds);
+
+	list_for_each_entry(rfkill, &rfkill_list, node) {
+		ev = kzalloc(sizeof(*ev), GFP_KERNEL);
+		if (!ev)
+			goto free;
+		rfkill_fill_event(&ev->ev, rfkill, RFKILL_OP_ADD);
+		list_add_tail(&ev->list, &data->events);
+	}
+	mutex_unlock(&data->mtx);
+	mutex_unlock(&rfkill_global_mutex);
+
+	file->private_data = data;
+
+	return nonseekable_open(inode, file);
+
+ free:
+	mutex_unlock(&data->mtx);
+	mutex_unlock(&rfkill_global_mutex);
+	mutex_destroy(&data->mtx);
+	list_for_each_entry_safe(ev, tmp, &data->events, list)
+		kfree(ev);
+	kfree(data);
+	return -ENOMEM;
+}
+
+static unsigned int rfkill_fop_poll(struct file *file, poll_table *wait)
+{
+	struct rfkill_data *data = file->private_data;
+	unsigned int res = POLLOUT | POLLWRNORM;
+
+	poll_wait(file, &data->read_wait, wait);
+
+	mutex_lock(&data->mtx);
+	if (!list_empty(&data->events))
+		res = POLLIN | POLLRDNORM;
+	mutex_unlock(&data->mtx);
+
+	return res;
+}
+
+static bool rfkill_readable(struct rfkill_data *data)
+{
+	bool r;
+
+	mutex_lock(&data->mtx);
+	r = !list_empty(&data->events);
+	mutex_unlock(&data->mtx);
+
+	return r;
+}
+
+static ssize_t rfkill_fop_read(struct file *file, char __user *buf,
+			       size_t count, loff_t *pos)
+{
+	struct rfkill_data *data = file->private_data;
+	struct rfkill_int_event *ev;
+	unsigned long sz;
+	int ret;
+
+	mutex_lock(&data->mtx);
+
+	while (list_empty(&data->events)) {
+		if (file->f_flags & O_NONBLOCK) {
+			ret = -EAGAIN;
+			goto out;
+		}
+		mutex_unlock(&data->mtx);
+		ret = wait_event_interruptible(data->read_wait,
+					       rfkill_readable(data));
+		mutex_lock(&data->mtx);
+
+		if (ret)
+			goto out;
+	}
+
+	ev = list_first_entry(&data->events, struct rfkill_int_event,
+				list);
+
+	sz = min_t(unsigned long, sizeof(ev->ev), count);
+	ret = sz;
+	if (copy_to_user(buf, &ev->ev, sz))
+		ret = -EFAULT;
+
+	list_del(&ev->list);
+	kfree(ev);
+ out:
+	mutex_unlock(&data->mtx);
+	return ret;
+}
+
+static ssize_t rfkill_fop_write(struct file *file, const char __user *buf,
+				size_t count, loff_t *pos)
+{
+	struct rfkill *rfkill;
+	struct rfkill_event ev;
+
+	/* we don't need the 'hard' variable but accept it */
+	if (count < sizeof(ev) - 1)
+		return -EINVAL;
+
+	if (copy_from_user(&ev, buf, sizeof(ev) - 1))
+		return -EFAULT;
+
+	if (ev.op != RFKILL_OP_CHANGE && ev.op != RFKILL_OP_CHANGE_ALL)
+		return -EINVAL;
+
+	if (ev.type >= NUM_RFKILL_TYPES)
+		return -EINVAL;
+
+	mutex_lock(&rfkill_global_mutex);
+
+	if (ev.op == RFKILL_OP_CHANGE_ALL) {
+		if (ev.type == RFKILL_TYPE_ALL) {
+			enum rfkill_type i;
+			for (i = 0; i < NUM_RFKILL_TYPES; i++)
+				rfkill_global_states[i].cur = ev.soft;
+		} else {
+			rfkill_global_states[ev.type].cur = ev.soft;
+		}
+	}
+
+	list_for_each_entry(rfkill, &rfkill_list, node) {
+		if (rfkill->idx != ev.idx && ev.op != RFKILL_OP_CHANGE_ALL)
+			continue;
+
+		if (rfkill->type != ev.type && ev.type != RFKILL_TYPE_ALL)
+			continue;
+
+		rfkill_set_block(rfkill, ev.soft);
+	}
+	mutex_unlock(&rfkill_global_mutex);
+
+	return count;
+}
+
+static int rfkill_fop_release(struct inode *inode, struct file *file)
+{
+	struct rfkill_data *data = file->private_data;
+	struct rfkill_int_event *ev, *tmp;
+
+	mutex_lock(&rfkill_global_mutex);
+	list_del(&data->list);
+	mutex_unlock(&rfkill_global_mutex);
+
+	mutex_destroy(&data->mtx);
+	list_for_each_entry_safe(ev, tmp, &data->events, list)
+		kfree(ev);
+
+#ifdef CONFIG_RFKILL_INPUT
+	if (data->input_handler)
+		if (atomic_dec_return(&rfkill_input_disabled) == 0)
+			printk(KERN_DEBUG "rfkill: input handler enabled\n");
+#endif
+
+	kfree(data);
+
+	return 0;
+}
+
+#ifdef CONFIG_RFKILL_INPUT
+static long rfkill_fop_ioctl(struct file *file, unsigned int cmd,
+			     unsigned long arg)
+{
+	struct rfkill_data *data = file->private_data;
+
+	if (_IOC_TYPE(cmd) != RFKILL_IOC_MAGIC)
+		return -ENOSYS;
+
+	if (_IOC_NR(cmd) != RFKILL_IOC_NOINPUT)
+		return -ENOSYS;
+
+	mutex_lock(&data->mtx);
+
+	if (!data->input_handler) {
+		if (atomic_inc_return(&rfkill_input_disabled) == 1)
+			printk(KERN_DEBUG "rfkill: input handler disabled\n");
+		data->input_handler = true;
+	}
+
+	mutex_unlock(&data->mtx);
+
+	return 0;
+}
+#endif
+
+static const struct file_operations rfkill_fops = {
+	.open		= rfkill_fop_open,
+	.read		= rfkill_fop_read,
+	.write		= rfkill_fop_write,
+	.poll		= rfkill_fop_poll,
+	.release	= rfkill_fop_release,
+#ifdef CONFIG_RFKILL_INPUT
+	.unlocked_ioctl	= rfkill_fop_ioctl,
+	.compat_ioctl	= rfkill_fop_ioctl,
+#endif
+};
+
+static struct miscdevice rfkill_miscdev = {
+	.name	= "rfkill",
+	.fops	= &rfkill_fops,
+	.minor	= MISC_DYNAMIC_MINOR,
+};
+
+static int __init rfkill_init(void)
+{
+	int error;
+	int i;
+
+	for (i = 0; i < NUM_RFKILL_TYPES; i++)
+		rfkill_global_states[i].cur = !rfkill_default_state;
+
+	error = class_register(&rfkill_class);
+	if (error)
+		goto out;
+
+	error = misc_register(&rfkill_miscdev);
+	if (error) {
+		class_unregister(&rfkill_class);
+		goto out;
+	}
+
+#ifdef CONFIG_RFKILL_INPUT
+	error = rfkill_handler_init();
+	if (error) {
+		misc_deregister(&rfkill_miscdev);
+		class_unregister(&rfkill_class);
+		goto out;
+	}
+#endif
+
+ out:
+	return error;
+}
+subsys_initcall(rfkill_init);
+
+static void __exit rfkill_exit(void)
+{
+#ifdef CONFIG_RFKILL_INPUT
+	rfkill_handler_exit();
+#endif
+	misc_deregister(&rfkill_miscdev);
+	class_unregister(&rfkill_class);
+}
+module_exit(rfkill_exit);
diff --git a/net/rfkill/input.c b/net/rfkill/input.c
new file mode 100644
index 000000000000..a7295ad5f9cb
--- /dev/null
+++ b/net/rfkill/input.c
@@ -0,0 +1,342 @@
+/*
+ * Input layer to RF Kill interface connector
+ *
+ * Copyright (c) 2007 Dmitry Torokhov
+ * Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * If you ever run into a situation in which you have a SW_ type rfkill
+ * input device, then you can revive code that was removed in the patch
+ * "rfkill-input: remove unused code".
+ */
+
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <linux/init.h>
+#include <linux/rfkill.h>
+#include <linux/sched.h>
+
+#include "rfkill.h"
+
+enum rfkill_input_master_mode {
+	RFKILL_INPUT_MASTER_UNLOCK = 0,
+	RFKILL_INPUT_MASTER_RESTORE = 1,
+	RFKILL_INPUT_MASTER_UNBLOCKALL = 2,
+	NUM_RFKILL_INPUT_MASTER_MODES
+};
+
+/* Delay (in ms) between consecutive switch ops */
+#define RFKILL_OPS_DELAY 200
+
+static enum rfkill_input_master_mode rfkill_master_switch_mode =
+					RFKILL_INPUT_MASTER_UNBLOCKALL;
+module_param_named(master_switch_mode, rfkill_master_switch_mode, uint, 0);
+MODULE_PARM_DESC(master_switch_mode,
+	"SW_RFKILL_ALL ON should: 0=do nothing (only unlock); 1=restore; 2=unblock all");
+
+static spinlock_t rfkill_op_lock;
+static bool rfkill_op_pending;
+static unsigned long rfkill_sw_pending[BITS_TO_LONGS(NUM_RFKILL_TYPES)];
+static unsigned long rfkill_sw_state[BITS_TO_LONGS(NUM_RFKILL_TYPES)];
+
+enum rfkill_sched_op {
+	RFKILL_GLOBAL_OP_EPO = 0,
+	RFKILL_GLOBAL_OP_RESTORE,
+	RFKILL_GLOBAL_OP_UNLOCK,
+	RFKILL_GLOBAL_OP_UNBLOCK,
+};
+
+static enum rfkill_sched_op rfkill_master_switch_op;
+static enum rfkill_sched_op rfkill_op;
+
+static void __rfkill_handle_global_op(enum rfkill_sched_op op)
+{
+	unsigned int i;
+
+	switch (op) {
+	case RFKILL_GLOBAL_OP_EPO:
+		rfkill_epo();
+		break;
+	case RFKILL_GLOBAL_OP_RESTORE:
+		rfkill_restore_states();
+		break;
+	case RFKILL_GLOBAL_OP_UNLOCK:
+		rfkill_remove_epo_lock();
+		break;
+	case RFKILL_GLOBAL_OP_UNBLOCK:
+		rfkill_remove_epo_lock();
+		for (i = 0; i < NUM_RFKILL_TYPES; i++)
+			rfkill_switch_all(i, false);
+		break;
+	default:
+		/* memory corruption or bug, fail safely */
+		rfkill_epo();
+		WARN(1, "Unknown requested operation %d! "
+			"rfkill Emergency Power Off activated\n",
+			op);
+	}
+}
+
+static void __rfkill_handle_normal_op(const enum rfkill_type type,
+				      const bool complement)
+{
+	bool blocked;
+
+	blocked = rfkill_get_global_sw_state(type);
+	if (complement)
+		blocked = !blocked;
+
+	rfkill_switch_all(type, blocked);
+}
+
+static void rfkill_op_handler(struct work_struct *work)
+{
+	unsigned int i;
+	bool c;
+
+	spin_lock_irq(&rfkill_op_lock);
+	do {
+		if (rfkill_op_pending) {
+			enum rfkill_sched_op op = rfkill_op;
+			rfkill_op_pending = false;
+			memset(rfkill_sw_pending, 0,
+				sizeof(rfkill_sw_pending));
+			spin_unlock_irq(&rfkill_op_lock);
+
+			__rfkill_handle_global_op(op);
+
+			spin_lock_irq(&rfkill_op_lock);
+
+			/*
+			 * handle global ops first -- during unlocked period
+			 * we might have gotten a new global op.
+			 */
+			if (rfkill_op_pending)
+				continue;
+		}
+
+		if (rfkill_is_epo_lock_active())
+			continue;
+
+		for (i = 0; i < NUM_RFKILL_TYPES; i++) {
+			if (__test_and_clear_bit(i, rfkill_sw_pending)) {
+				c = __test_and_clear_bit(i, rfkill_sw_state);
+				spin_unlock_irq(&rfkill_op_lock);
+
+				__rfkill_handle_normal_op(i, c);
+
+				spin_lock_irq(&rfkill_op_lock);
+			}
+		}
+	} while (rfkill_op_pending);
+	spin_unlock_irq(&rfkill_op_lock);
+}
+
+static DECLARE_DELAYED_WORK(rfkill_op_work, rfkill_op_handler);
+static unsigned long rfkill_last_scheduled;
+
+static unsigned long rfkill_ratelimit(const unsigned long last)
+{
+	const unsigned long delay = msecs_to_jiffies(RFKILL_OPS_DELAY);
+	return (time_after(jiffies, last + delay)) ? 0 : delay;
+}
+
+static void rfkill_schedule_ratelimited(void)
+{
+	if (delayed_work_pending(&rfkill_op_work))
+		return;
+	schedule_delayed_work(&rfkill_op_work,
+			      rfkill_ratelimit(rfkill_last_scheduled));
+	rfkill_last_scheduled = jiffies;
+}
+
+static void rfkill_schedule_global_op(enum rfkill_sched_op op)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&rfkill_op_lock, flags);
+	rfkill_op = op;
+	rfkill_op_pending = true;
+	if (op == RFKILL_GLOBAL_OP_EPO && !rfkill_is_epo_lock_active()) {
+		/* bypass the limiter for EPO */
+		cancel_delayed_work(&rfkill_op_work);
+		schedule_delayed_work(&rfkill_op_work, 0);
+		rfkill_last_scheduled = jiffies;
+	} else
+		rfkill_schedule_ratelimited();
+	spin_unlock_irqrestore(&rfkill_op_lock, flags);
+}
+
+static void rfkill_schedule_toggle(enum rfkill_type type)
+{
+	unsigned long flags;
+
+	if (rfkill_is_epo_lock_active())
+		return;
+
+	spin_lock_irqsave(&rfkill_op_lock, flags);
+	if (!rfkill_op_pending) {
+		__set_bit(type, rfkill_sw_pending);
+		__change_bit(type, rfkill_sw_state);
+		rfkill_schedule_ratelimited();
+	}
+	spin_unlock_irqrestore(&rfkill_op_lock, flags);
+}
+
+static void rfkill_schedule_evsw_rfkillall(int state)
+{
+	if (state)
+		rfkill_schedule_global_op(rfkill_master_switch_op);
+	else
+		rfkill_schedule_global_op(RFKILL_GLOBAL_OP_EPO);
+}
+
+static void rfkill_event(struct input_handle *handle, unsigned int type,
+			unsigned int code, int data)
+{
+	if (type == EV_KEY && data == 1) {
+		switch (code) {
+		case KEY_WLAN:
+			rfkill_schedule_toggle(RFKILL_TYPE_WLAN);
+			break;
+		case KEY_BLUETOOTH:
+			rfkill_schedule_toggle(RFKILL_TYPE_BLUETOOTH);
+			break;
+		case KEY_UWB:
+			rfkill_schedule_toggle(RFKILL_TYPE_UWB);
+			break;
+		case KEY_WIMAX:
+			rfkill_schedule_toggle(RFKILL_TYPE_WIMAX);
+			break;
+		}
+	} else if (type == EV_SW && code == SW_RFKILL_ALL)
+		rfkill_schedule_evsw_rfkillall(data);
+}
+
+static int rfkill_connect(struct input_handler *handler, struct input_dev *dev,
+			  const struct input_device_id *id)
+{
+	struct input_handle *handle;
+	int error;
+
+	handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
+	if (!handle)
+		return -ENOMEM;
+
+	handle->dev = dev;
+	handle->handler = handler;
+	handle->name = "rfkill";
+
+	/* causes rfkill_start() to be called */
+	error = input_register_handle(handle);
+	if (error)
+		goto err_free_handle;
+
+	error = input_open_device(handle);
+	if (error)
+		goto err_unregister_handle;
+
+	return 0;
+
+ err_unregister_handle:
+	input_unregister_handle(handle);
+ err_free_handle:
+	kfree(handle);
+	return error;
+}
+
+static void rfkill_start(struct input_handle *handle)
+{
+	/*
+	 * Take event_lock to guard against configuration changes, we
+	 * should be able to deal with concurrency with rfkill_event()
+	 * just fine (which event_lock will also avoid).
+	 */
+	spin_lock_irq(&handle->dev->event_lock);
+
+	if (test_bit(EV_SW, handle->dev->evbit) &&
+	    test_bit(SW_RFKILL_ALL, handle->dev->swbit))
+		rfkill_schedule_evsw_rfkillall(test_bit(SW_RFKILL_ALL,
+							handle->dev->sw));
+
+	spin_unlock_irq(&handle->dev->event_lock);
+}
+
+static void rfkill_disconnect(struct input_handle *handle)
+{
+	input_close_device(handle);
+	input_unregister_handle(handle);
+	kfree(handle);
+}
+
+static const struct input_device_id rfkill_ids[] = {
+	{
+		.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
+		.evbit = { BIT_MASK(EV_KEY) },
+		.keybit = { [BIT_WORD(KEY_WLAN)] = BIT_MASK(KEY_WLAN) },
+	},
+	{
+		.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
+		.evbit = { BIT_MASK(EV_KEY) },
+		.keybit = { [BIT_WORD(KEY_BLUETOOTH)] = BIT_MASK(KEY_BLUETOOTH) },
+	},
+	{
+		.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
+		.evbit = { BIT_MASK(EV_KEY) },
+		.keybit = { [BIT_WORD(KEY_UWB)] = BIT_MASK(KEY_UWB) },
+	},
+	{
+		.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
+		.evbit = { BIT_MASK(EV_KEY) },
+		.keybit = { [BIT_WORD(KEY_WIMAX)] = BIT_MASK(KEY_WIMAX) },
+	},
+	{
+		.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_SWBIT,
+		.evbit = { BIT(EV_SW) },
+		.swbit = { [BIT_WORD(SW_RFKILL_ALL)] = BIT_MASK(SW_RFKILL_ALL) },
+	},
+	{ }
+};
+
+static struct input_handler rfkill_handler = {
+	.name =	"rfkill",
+	.event = rfkill_event,
+	.connect = rfkill_connect,
+	.start = rfkill_start,
+	.disconnect = rfkill_disconnect,
+	.id_table = rfkill_ids,
+};
+
+int __init rfkill_handler_init(void)
+{
+	switch (rfkill_master_switch_mode) {
+	case RFKILL_INPUT_MASTER_UNBLOCKALL:
+		rfkill_master_switch_op = RFKILL_GLOBAL_OP_UNBLOCK;
+		break;
+	case RFKILL_INPUT_MASTER_RESTORE:
+		rfkill_master_switch_op = RFKILL_GLOBAL_OP_RESTORE;
+		break;
+	case RFKILL_INPUT_MASTER_UNLOCK:
+		rfkill_master_switch_op = RFKILL_GLOBAL_OP_UNLOCK;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	spin_lock_init(&rfkill_op_lock);
+
+	/* Avoid delay at first schedule */
+	rfkill_last_scheduled =
+			jiffies - msecs_to_jiffies(RFKILL_OPS_DELAY) - 1;
+	return input_register_handler(&rfkill_handler);
+}
+
+void __exit rfkill_handler_exit(void)
+{
+	input_unregister_handler(&rfkill_handler);
+	cancel_delayed_work_sync(&rfkill_op_work);
+}
diff --git a/net/rfkill/rfkill-input.c b/net/rfkill/rfkill-input.c
deleted file mode 100644
index 84efde97c5a7..000000000000
--- a/net/rfkill/rfkill-input.c
+++ /dev/null
@@ -1,459 +0,0 @@
-/*
- * Input layer to RF Kill interface connector
- *
- * Copyright (c) 2007 Dmitry Torokhov
- */
-
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/input.h>
-#include <linux/slab.h>
-#include <linux/workqueue.h>
-#include <linux/init.h>
-#include <linux/rfkill.h>
-#include <linux/sched.h>
-
-#include "rfkill-input.h"
-
-MODULE_AUTHOR("Dmitry Torokhov <dtor@mail.ru>");
-MODULE_DESCRIPTION("Input layer to RF switch connector");
-MODULE_LICENSE("GPL");
-
-enum rfkill_input_master_mode {
-	RFKILL_INPUT_MASTER_DONOTHING = 0,
-	RFKILL_INPUT_MASTER_RESTORE = 1,
-	RFKILL_INPUT_MASTER_UNBLOCKALL = 2,
-	RFKILL_INPUT_MASTER_MAX,	/* marker */
-};
-
-/* Delay (in ms) between consecutive switch ops */
-#define RFKILL_OPS_DELAY 200
-
-static enum rfkill_input_master_mode rfkill_master_switch_mode =
-					RFKILL_INPUT_MASTER_UNBLOCKALL;
-module_param_named(master_switch_mode, rfkill_master_switch_mode, uint, 0);
-MODULE_PARM_DESC(master_switch_mode,
-	"SW_RFKILL_ALL ON should: 0=do nothing; 1=restore; 2=unblock all");
-
-enum rfkill_global_sched_op {
-	RFKILL_GLOBAL_OP_EPO = 0,
-	RFKILL_GLOBAL_OP_RESTORE,
-	RFKILL_GLOBAL_OP_UNLOCK,
-	RFKILL_GLOBAL_OP_UNBLOCK,
-};
-
-/*
- * Currently, the code marked with RFKILL_NEED_SWSET is inactive.
- * If handling of EV_SW SW_WLAN/WWAN/BLUETOOTH/etc is needed in the
- * future, when such events are added, that code will be necessary.
- */
-
-struct rfkill_task {
-	struct delayed_work dwork;
-
-	/* ensures that task is serialized */
-	struct mutex mutex;
-
-	/* protects everything below */
-	spinlock_t lock;
-
-	/* pending regular switch operations (1=pending) */
-	unsigned long sw_pending[BITS_TO_LONGS(RFKILL_TYPE_MAX)];
-
-#ifdef RFKILL_NEED_SWSET
-	/* set operation pending (1=pending) */
-	unsigned long sw_setpending[BITS_TO_LONGS(RFKILL_TYPE_MAX)];
-
-	/* desired state for pending set operation (1=unblock) */
-	unsigned long sw_newstate[BITS_TO_LONGS(RFKILL_TYPE_MAX)];
-#endif
-
-	/* should the state be complemented (1=yes) */
-	unsigned long sw_togglestate[BITS_TO_LONGS(RFKILL_TYPE_MAX)];
-
-	bool global_op_pending;
-	enum rfkill_global_sched_op op;
-
-	/* last time it was scheduled */
-	unsigned long last_scheduled;
-};
-
-static void __rfkill_handle_global_op(enum rfkill_global_sched_op op)
-{
-	unsigned int i;
-
-	switch (op) {
-	case RFKILL_GLOBAL_OP_EPO:
-		rfkill_epo();
-		break;
-	case RFKILL_GLOBAL_OP_RESTORE:
-		rfkill_restore_states();
-		break;
-	case RFKILL_GLOBAL_OP_UNLOCK:
-		rfkill_remove_epo_lock();
-		break;
-	case RFKILL_GLOBAL_OP_UNBLOCK:
-		rfkill_remove_epo_lock();
-		for (i = 0; i < RFKILL_TYPE_MAX; i++)
-			rfkill_switch_all(i, RFKILL_STATE_UNBLOCKED);
-		break;
-	default:
-		/* memory corruption or bug, fail safely */
-		rfkill_epo();
-		WARN(1, "Unknown requested operation %d! "
-			"rfkill Emergency Power Off activated\n",
-			op);
-	}
-}
-
-#ifdef RFKILL_NEED_SWSET
-static void __rfkill_handle_normal_op(const enum rfkill_type type,
-			const bool sp, const bool s, const bool c)
-{
-	enum rfkill_state state;
-
-	if (sp)
-		state = (s) ? RFKILL_STATE_UNBLOCKED :
-			      RFKILL_STATE_SOFT_BLOCKED;
-	else
-		state = rfkill_get_global_state(type);
-
-	if (c)
-		state = rfkill_state_complement(state);
-
-	rfkill_switch_all(type, state);
-}
-#else
-static void __rfkill_handle_normal_op(const enum rfkill_type type,
-			const bool c)
-{
-	enum rfkill_state state;
-
-	state = rfkill_get_global_state(type);
-	if (c)
-		state = rfkill_state_complement(state);
-
-	rfkill_switch_all(type, state);
-}
-#endif
-
-static void rfkill_task_handler(struct work_struct *work)
-{
-	struct rfkill_task *task = container_of(work,
-					struct rfkill_task, dwork.work);
-	bool doit = true;
-
-	mutex_lock(&task->mutex);
-
-	spin_lock_irq(&task->lock);
-	while (doit) {
-		if (task->global_op_pending) {
-			enum rfkill_global_sched_op op = task->op;
-			task->global_op_pending = false;
-			memset(task->sw_pending, 0, sizeof(task->sw_pending));
-			spin_unlock_irq(&task->lock);
-
-			__rfkill_handle_global_op(op);
-
-			/* make sure we do at least one pass with
-			 * !task->global_op_pending */
-			spin_lock_irq(&task->lock);
-			continue;
-		} else if (!rfkill_is_epo_lock_active()) {
-			unsigned int i = 0;
-
-			while (!task->global_op_pending &&
-						i < RFKILL_TYPE_MAX) {
-				if (test_and_clear_bit(i, task->sw_pending)) {
-					bool c;
-#ifdef RFKILL_NEED_SWSET
-					bool sp, s;
-					sp = test_and_clear_bit(i,
-							task->sw_setpending);
-					s = test_bit(i, task->sw_newstate);
-#endif
-					c = test_and_clear_bit(i,
-							task->sw_togglestate);
-					spin_unlock_irq(&task->lock);
-
-#ifdef RFKILL_NEED_SWSET
-					__rfkill_handle_normal_op(i, sp, s, c);
-#else
-					__rfkill_handle_normal_op(i, c);
-#endif
-
-					spin_lock_irq(&task->lock);
-				}
-				i++;
-			}
-		}
-		doit = task->global_op_pending;
-	}
-	spin_unlock_irq(&task->lock);
-
-	mutex_unlock(&task->mutex);
-}
-
-static struct rfkill_task rfkill_task = {
-	.dwork = __DELAYED_WORK_INITIALIZER(rfkill_task.dwork,
-				rfkill_task_handler),
-	.mutex = __MUTEX_INITIALIZER(rfkill_task.mutex),
-	.lock = __SPIN_LOCK_UNLOCKED(rfkill_task.lock),
-};
-
-static unsigned long rfkill_ratelimit(const unsigned long last)
-{
-	const unsigned long delay = msecs_to_jiffies(RFKILL_OPS_DELAY);
-	return (time_after(jiffies, last + delay)) ? 0 : delay;
-}
-
-static void rfkill_schedule_ratelimited(void)
-{
-	if (!delayed_work_pending(&rfkill_task.dwork)) {
-		schedule_delayed_work(&rfkill_task.dwork,
-				rfkill_ratelimit(rfkill_task.last_scheduled));
-		rfkill_task.last_scheduled = jiffies;
-	}
-}
-
-static void rfkill_schedule_global_op(enum rfkill_global_sched_op op)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&rfkill_task.lock, flags);
-	rfkill_task.op = op;
-	rfkill_task.global_op_pending = true;
-	if (op == RFKILL_GLOBAL_OP_EPO && !rfkill_is_epo_lock_active()) {
-		/* bypass the limiter for EPO */
-		cancel_delayed_work(&rfkill_task.dwork);
-		schedule_delayed_work(&rfkill_task.dwork, 0);
-		rfkill_task.last_scheduled = jiffies;
-	} else
-		rfkill_schedule_ratelimited();
-	spin_unlock_irqrestore(&rfkill_task.lock, flags);
-}
-
-#ifdef RFKILL_NEED_SWSET
-/* Use this if you need to add EV_SW SW_WLAN/WWAN/BLUETOOTH/etc handling */
-
-static void rfkill_schedule_set(enum rfkill_type type,
-				enum rfkill_state desired_state)
-{
-	unsigned long flags;
-
-	if (rfkill_is_epo_lock_active())
-		return;
-
-	spin_lock_irqsave(&rfkill_task.lock, flags);
-	if (!rfkill_task.global_op_pending) {
-		set_bit(type, rfkill_task.sw_pending);
-		set_bit(type, rfkill_task.sw_setpending);
-		clear_bit(type, rfkill_task.sw_togglestate);
-		if (desired_state)
-			set_bit(type,  rfkill_task.sw_newstate);
-		else
-			clear_bit(type, rfkill_task.sw_newstate);
-		rfkill_schedule_ratelimited();
-	}
-	spin_unlock_irqrestore(&rfkill_task.lock, flags);
-}
-#endif
-
-static void rfkill_schedule_toggle(enum rfkill_type type)
-{
-	unsigned long flags;
-
-	if (rfkill_is_epo_lock_active())
-		return;
-
-	spin_lock_irqsave(&rfkill_task.lock, flags);
-	if (!rfkill_task.global_op_pending) {
-		set_bit(type, rfkill_task.sw_pending);
-		change_bit(type, rfkill_task.sw_togglestate);
-		rfkill_schedule_ratelimited();
-	}
-	spin_unlock_irqrestore(&rfkill_task.lock, flags);
-}
-
-static void rfkill_schedule_evsw_rfkillall(int state)
-{
-	if (state) {
-		switch (rfkill_master_switch_mode) {
-		case RFKILL_INPUT_MASTER_UNBLOCKALL:
-			rfkill_schedule_global_op(RFKILL_GLOBAL_OP_UNBLOCK);
-			break;
-		case RFKILL_INPUT_MASTER_RESTORE:
-			rfkill_schedule_global_op(RFKILL_GLOBAL_OP_RESTORE);
-			break;
-		case RFKILL_INPUT_MASTER_DONOTHING:
-			rfkill_schedule_global_op(RFKILL_GLOBAL_OP_UNLOCK);
-			break;
-		default:
-			/* memory corruption or driver bug! fail safely */
-			rfkill_schedule_global_op(RFKILL_GLOBAL_OP_EPO);
-			WARN(1, "Unknown rfkill_master_switch_mode (%d), "
-				"driver bug or memory corruption detected!\n",
-				rfkill_master_switch_mode);
-			break;
-		}
-	} else
-		rfkill_schedule_global_op(RFKILL_GLOBAL_OP_EPO);
-}
-
-static void rfkill_event(struct input_handle *handle, unsigned int type,
-			unsigned int code, int data)
-{
-	if (type == EV_KEY && data == 1) {
-		enum rfkill_type t;
-
-		switch (code) {
-		case KEY_WLAN:
-			t = RFKILL_TYPE_WLAN;
-			break;
-		case KEY_BLUETOOTH:
-			t = RFKILL_TYPE_BLUETOOTH;
-			break;
-		case KEY_UWB:
-			t = RFKILL_TYPE_UWB;
-			break;
-		case KEY_WIMAX:
-			t = RFKILL_TYPE_WIMAX;
-			break;
-		default:
-			return;
-		}
-		rfkill_schedule_toggle(t);
-		return;
-	} else if (type == EV_SW) {
-		switch (code) {
-		case SW_RFKILL_ALL:
-			rfkill_schedule_evsw_rfkillall(data);
-			return;
-		default:
-			return;
-		}
-	}
-}
-
-static int rfkill_connect(struct input_handler *handler, struct input_dev *dev,
-			  const struct input_device_id *id)
-{
-	struct input_handle *handle;
-	int error;
-
-	handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
-	if (!handle)
-		return -ENOMEM;
-
-	handle->dev = dev;
-	handle->handler = handler;
-	handle->name = "rfkill";
-
-	/* causes rfkill_start() to be called */
-	error = input_register_handle(handle);
-	if (error)
-		goto err_free_handle;
-
-	error = input_open_device(handle);
-	if (error)
-		goto err_unregister_handle;
-
-	return 0;
-
- err_unregister_handle:
-	input_unregister_handle(handle);
- err_free_handle:
-	kfree(handle);
-	return error;
-}
-
-static void rfkill_start(struct input_handle *handle)
-{
-	/* Take event_lock to guard against configuration changes, we
-	 * should be able to deal with concurrency with rfkill_event()
-	 * just fine (which event_lock will also avoid). */
-	spin_lock_irq(&handle->dev->event_lock);
-
-	if (test_bit(EV_SW, handle->dev->evbit)) {
-		if (test_bit(SW_RFKILL_ALL, handle->dev->swbit))
-			rfkill_schedule_evsw_rfkillall(test_bit(SW_RFKILL_ALL,
-							handle->dev->sw));
-		/* add resync for further EV_SW events here */
-	}
-
-	spin_unlock_irq(&handle->dev->event_lock);
-}
-
-static void rfkill_disconnect(struct input_handle *handle)
-{
-	input_close_device(handle);
-	input_unregister_handle(handle);
-	kfree(handle);
-}
-
-static const struct input_device_id rfkill_ids[] = {
-	{
-		.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
-		.evbit = { BIT_MASK(EV_KEY) },
-		.keybit = { [BIT_WORD(KEY_WLAN)] = BIT_MASK(KEY_WLAN) },
-	},
-	{
-		.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
-		.evbit = { BIT_MASK(EV_KEY) },
-		.keybit = { [BIT_WORD(KEY_BLUETOOTH)] = BIT_MASK(KEY_BLUETOOTH) },
-	},
-	{
-		.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
-		.evbit = { BIT_MASK(EV_KEY) },
-		.keybit = { [BIT_WORD(KEY_UWB)] = BIT_MASK(KEY_UWB) },
-	},
-	{
-		.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
-		.evbit = { BIT_MASK(EV_KEY) },
-		.keybit = { [BIT_WORD(KEY_WIMAX)] = BIT_MASK(KEY_WIMAX) },
-	},
-	{
-		.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_SWBIT,
-		.evbit = { BIT(EV_SW) },
-		.swbit = { [BIT_WORD(SW_RFKILL_ALL)] = BIT_MASK(SW_RFKILL_ALL) },
-	},
-	{ }
-};
-
-static struct input_handler rfkill_handler = {
-	.event =	rfkill_event,
-	.connect =	rfkill_connect,
-	.disconnect =	rfkill_disconnect,
-	.start =	rfkill_start,
-	.name =		"rfkill",
-	.id_table =	rfkill_ids,
-};
-
-static int __init rfkill_handler_init(void)
-{
-	if (rfkill_master_switch_mode >= RFKILL_INPUT_MASTER_MAX)
-		return -EINVAL;
-
-	/*
-	 * The penalty to not doing this is a possible RFKILL_OPS_DELAY delay
-	 * at the first use.  Acceptable, but if we can avoid it, why not?
-	 */
-	rfkill_task.last_scheduled =
-			jiffies - msecs_to_jiffies(RFKILL_OPS_DELAY) - 1;
-	return input_register_handler(&rfkill_handler);
-}
-
-static void __exit rfkill_handler_exit(void)
-{
-	input_unregister_handler(&rfkill_handler);
-	cancel_delayed_work_sync(&rfkill_task.dwork);
-	rfkill_remove_epo_lock();
-}
-
-module_init(rfkill_handler_init);
-module_exit(rfkill_handler_exit);
diff --git a/net/rfkill/rfkill.c b/net/rfkill/rfkill.c
deleted file mode 100644
index 3eaa39403c13..000000000000
--- a/net/rfkill/rfkill.c
+++ /dev/null
@@ -1,882 +0,0 @@
-/*
- * Copyright (C) 2006 - 2007 Ivo van Doorn
- * Copyright (C) 2007 Dmitry Torokhov
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the
- * Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/workqueue.h>
-#include <linux/capability.h>
-#include <linux/list.h>
-#include <linux/mutex.h>
-#include <linux/rfkill.h>
-
-/* Get declaration of rfkill_switch_all() to shut up sparse. */
-#include "rfkill-input.h"
-
-
-MODULE_AUTHOR("Ivo van Doorn <IvDoorn@gmail.com>");
-MODULE_VERSION("1.0");
-MODULE_DESCRIPTION("RF switch support");
-MODULE_LICENSE("GPL");
-
-static LIST_HEAD(rfkill_list);	/* list of registered rf switches */
-static DEFINE_MUTEX(rfkill_global_mutex);
-
-static unsigned int rfkill_default_state = RFKILL_STATE_UNBLOCKED;
-module_param_named(default_state, rfkill_default_state, uint, 0444);
-MODULE_PARM_DESC(default_state,
-		 "Default initial state for all radio types, 0 = radio off");
-
-struct rfkill_gsw_state {
-	enum rfkill_state current_state;
-	enum rfkill_state default_state;
-};
-
-static struct rfkill_gsw_state rfkill_global_states[RFKILL_TYPE_MAX];
-static unsigned long rfkill_states_lockdflt[BITS_TO_LONGS(RFKILL_TYPE_MAX)];
-static bool rfkill_epo_lock_active;
-
-
-#ifdef CONFIG_RFKILL_LEDS
-static void rfkill_led_trigger(struct rfkill *rfkill,
-			       enum rfkill_state state)
-{
-	struct led_trigger *led = &rfkill->led_trigger;
-
-	if (!led->name)
-		return;
-	if (state != RFKILL_STATE_UNBLOCKED)
-		led_trigger_event(led, LED_OFF);
-	else
-		led_trigger_event(led, LED_FULL);
-}
-
-static void rfkill_led_trigger_activate(struct led_classdev *led)
-{
-	struct rfkill *rfkill = container_of(led->trigger,
-			struct rfkill, led_trigger);
-
-	rfkill_led_trigger(rfkill, rfkill->state);
-}
-#endif /* CONFIG_RFKILL_LEDS */
-
-static void rfkill_uevent(struct rfkill *rfkill)
-{
-	kobject_uevent(&rfkill->dev.kobj, KOBJ_CHANGE);
-}
-
-static void update_rfkill_state(struct rfkill *rfkill)
-{
-	enum rfkill_state newstate, oldstate;
-
-	if (rfkill->get_state) {
-		mutex_lock(&rfkill->mutex);
-		if (!rfkill->get_state(rfkill->data, &newstate)) {
-			oldstate = rfkill->state;
-			rfkill->state = newstate;
-			if (oldstate != newstate)
-				rfkill_uevent(rfkill);
-		}
-		mutex_unlock(&rfkill->mutex);
-	}
-}
-
-/**
- * rfkill_toggle_radio - wrapper for toggle_radio hook
- * @rfkill: the rfkill struct to use
- * @force: calls toggle_radio even if cache says it is not needed,
- *	and also makes sure notifications of the state will be
- *	sent even if it didn't change
- * @state: the new state to call toggle_radio() with
- *
- * Calls rfkill->toggle_radio, enforcing the API for toggle_radio
- * calls and handling all the red tape such as issuing notifications
- * if the call is successful.
- *
- * Suspended devices are not touched at all, and -EAGAIN is returned.
- *
- * Note that the @force parameter cannot override a (possibly cached)
- * state of RFKILL_STATE_HARD_BLOCKED.  Any device making use of
- * RFKILL_STATE_HARD_BLOCKED implements either get_state() or
- * rfkill_force_state(), so the cache either is bypassed or valid.
- *
- * Note that we do call toggle_radio for RFKILL_STATE_SOFT_BLOCKED
- * even if the radio is in RFKILL_STATE_HARD_BLOCKED state, so as to
- * give the driver a hint that it should double-BLOCK the transmitter.
- *
- * Caller must have acquired rfkill->mutex.
- */
-static int rfkill_toggle_radio(struct rfkill *rfkill,
-				enum rfkill_state state,
-				int force)
-{
-	int retval = 0;
-	enum rfkill_state oldstate, newstate;
-
-	if (unlikely(rfkill->dev.power.power_state.event & PM_EVENT_SLEEP))
-		return -EBUSY;
-
-	oldstate = rfkill->state;
-
-	if (rfkill->get_state && !force &&
-	    !rfkill->get_state(rfkill->data, &newstate))
-		rfkill->state = newstate;
-
-	switch (state) {
-	case RFKILL_STATE_HARD_BLOCKED:
-		/* typically happens when refreshing hardware state,
-		 * such as on resume */
-		state = RFKILL_STATE_SOFT_BLOCKED;
-		break;
-	case RFKILL_STATE_UNBLOCKED:
-		/* force can't override this, only rfkill_force_state() can */
-		if (rfkill->state == RFKILL_STATE_HARD_BLOCKED)
-			return -EPERM;
-		break;
-	case RFKILL_STATE_SOFT_BLOCKED:
-		/* nothing to do, we want to give drivers the hint to double
-		 * BLOCK even a transmitter that is already in state
-		 * RFKILL_STATE_HARD_BLOCKED */
-		break;
-	default:
-		WARN(1, KERN_WARNING
-			"rfkill: illegal state %d passed as parameter "
-			"to rfkill_toggle_radio\n", state);
-		return -EINVAL;
-	}
-
-	if (force || state != rfkill->state) {
-		retval = rfkill->toggle_radio(rfkill->data, state);
-		/* never allow a HARD->SOFT downgrade! */
-		if (!retval && rfkill->state != RFKILL_STATE_HARD_BLOCKED)
-			rfkill->state = state;
-	}
-
-	if (force || rfkill->state != oldstate)
-		rfkill_uevent(rfkill);
-
-	return retval;
-}
-
-/**
- * __rfkill_switch_all - Toggle state of all switches of given type
- * @type: type of interfaces to be affected
- * @state: the new state
- *
- * This function toggles the state of all switches of given type,
- * unless a specific switch is claimed by userspace (in which case,
- * that switch is left alone) or suspended.
- *
- * Caller must have acquired rfkill_global_mutex.
- */
-static void __rfkill_switch_all(const enum rfkill_type type,
-				const enum rfkill_state state)
-{
-	struct rfkill *rfkill;
-
-	if (WARN((state >= RFKILL_STATE_MAX || type >= RFKILL_TYPE_MAX),
-			KERN_WARNING
-			"rfkill: illegal state %d or type %d "
-			"passed as parameter to __rfkill_switch_all\n",
-			state, type))
-		return;
-
-	rfkill_global_states[type].current_state = state;
-	list_for_each_entry(rfkill, &rfkill_list, node) {
-		if ((!rfkill->user_claim) && (rfkill->type == type)) {
-			mutex_lock(&rfkill->mutex);
-			rfkill_toggle_radio(rfkill, state, 0);
-			mutex_unlock(&rfkill->mutex);
-		}
-	}
-}
-
-/**
- * rfkill_switch_all - Toggle state of all switches of given type
- * @type: type of interfaces to be affected
- * @state: the new state
- *
- * Acquires rfkill_global_mutex and calls __rfkill_switch_all(@type, @state).
- * Please refer to __rfkill_switch_all() for details.
- *
- * Does nothing if the EPO lock is active.
- */
-void rfkill_switch_all(enum rfkill_type type, enum rfkill_state state)
-{
-	mutex_lock(&rfkill_global_mutex);
-	if (!rfkill_epo_lock_active)
-		__rfkill_switch_all(type, state);
-	mutex_unlock(&rfkill_global_mutex);
-}
-EXPORT_SYMBOL(rfkill_switch_all);
-
-/**
- * rfkill_epo - emergency power off all transmitters
- *
- * This kicks all non-suspended rfkill devices to RFKILL_STATE_SOFT_BLOCKED,
- * ignoring everything in its path but rfkill_global_mutex and rfkill->mutex.
- *
- * The global state before the EPO is saved and can be restored later
- * using rfkill_restore_states().
- */
-void rfkill_epo(void)
-{
-	struct rfkill *rfkill;
-	int i;
-
-	mutex_lock(&rfkill_global_mutex);
-
-	rfkill_epo_lock_active = true;
-	list_for_each_entry(rfkill, &rfkill_list, node) {
-		mutex_lock(&rfkill->mutex);
-		rfkill_toggle_radio(rfkill, RFKILL_STATE_SOFT_BLOCKED, 1);
-		mutex_unlock(&rfkill->mutex);
-	}
-	for (i = 0; i < RFKILL_TYPE_MAX; i++) {
-		rfkill_global_states[i].default_state =
-				rfkill_global_states[i].current_state;
-		rfkill_global_states[i].current_state =
-				RFKILL_STATE_SOFT_BLOCKED;
-	}
-	mutex_unlock(&rfkill_global_mutex);
-}
-EXPORT_SYMBOL_GPL(rfkill_epo);
-
-/**
- * rfkill_restore_states - restore global states
- *
- * Restore (and sync switches to) the global state from the
- * states in rfkill_default_states.  This can undo the effects of
- * a call to rfkill_epo().
- */
-void rfkill_restore_states(void)
-{
-	int i;
-
-	mutex_lock(&rfkill_global_mutex);
-
-	rfkill_epo_lock_active = false;
-	for (i = 0; i < RFKILL_TYPE_MAX; i++)
-		__rfkill_switch_all(i, rfkill_global_states[i].default_state);
-	mutex_unlock(&rfkill_global_mutex);
-}
-EXPORT_SYMBOL_GPL(rfkill_restore_states);
-
-/**
- * rfkill_remove_epo_lock - unlock state changes
- *
- * Used by rfkill-input manually unlock state changes, when
- * the EPO switch is deactivated.
- */
-void rfkill_remove_epo_lock(void)
-{
-	mutex_lock(&rfkill_global_mutex);
-	rfkill_epo_lock_active = false;
-	mutex_unlock(&rfkill_global_mutex);
-}
-EXPORT_SYMBOL_GPL(rfkill_remove_epo_lock);
-
-/**
- * rfkill_is_epo_lock_active - returns true EPO is active
- *
- * Returns 0 (false) if there is NOT an active EPO contidion,
- * and 1 (true) if there is an active EPO contition, which
- * locks all radios in one of the BLOCKED states.
- *
- * Can be called in atomic context.
- */
-bool rfkill_is_epo_lock_active(void)
-{
-	return rfkill_epo_lock_active;
-}
-EXPORT_SYMBOL_GPL(rfkill_is_epo_lock_active);
-
-/**
- * rfkill_get_global_state - returns global state for a type
- * @type: the type to get the global state of
- *
- * Returns the current global state for a given wireless
- * device type.
- */
-enum rfkill_state rfkill_get_global_state(const enum rfkill_type type)
-{
-	return rfkill_global_states[type].current_state;
-}
-EXPORT_SYMBOL_GPL(rfkill_get_global_state);
-
-/**
- * rfkill_force_state - Force the internal rfkill radio state
- * @rfkill: pointer to the rfkill class to modify.
- * @state: the current radio state the class should be forced to.
- *
- * This function updates the internal state of the radio cached
- * by the rfkill class.  It should be used when the driver gets
- * a notification by the firmware/hardware of the current *real*
- * state of the radio rfkill switch.
- *
- * Devices which are subject to external changes on their rfkill
- * state (such as those caused by a hardware rfkill line) MUST
- * have their driver arrange to call rfkill_force_state() as soon
- * as possible after such a change.
- *
- * This function may not be called from an atomic context.
- */
-int rfkill_force_state(struct rfkill *rfkill, enum rfkill_state state)
-{
-	enum rfkill_state oldstate;
-
-	BUG_ON(!rfkill);
-	if (WARN((state >= RFKILL_STATE_MAX),
-			KERN_WARNING
-			"rfkill: illegal state %d passed as parameter "
-			"to rfkill_force_state\n", state))
-		return -EINVAL;
-
-	mutex_lock(&rfkill->mutex);
-
-	oldstate = rfkill->state;
-	rfkill->state = state;
-
-	if (state != oldstate)
-		rfkill_uevent(rfkill);
-
-	mutex_unlock(&rfkill->mutex);
-
-	return 0;
-}
-EXPORT_SYMBOL(rfkill_force_state);
-
-static ssize_t rfkill_name_show(struct device *dev,
-				struct device_attribute *attr,
-				char *buf)
-{
-	struct rfkill *rfkill = to_rfkill(dev);
-
-	return sprintf(buf, "%s\n", rfkill->name);
-}
-
-static const char *rfkill_get_type_str(enum rfkill_type type)
-{
-	switch (type) {
-	case RFKILL_TYPE_WLAN:
-		return "wlan";
-	case RFKILL_TYPE_BLUETOOTH:
-		return "bluetooth";
-	case RFKILL_TYPE_UWB:
-		return "ultrawideband";
-	case RFKILL_TYPE_WIMAX:
-		return "wimax";
-	case RFKILL_TYPE_WWAN:
-		return "wwan";
-	default:
-		BUG();
-	}
-}
-
-static ssize_t rfkill_type_show(struct device *dev,
-				struct device_attribute *attr,
-				char *buf)
-{
-	struct rfkill *rfkill = to_rfkill(dev);
-
-	return sprintf(buf, "%s\n", rfkill_get_type_str(rfkill->type));
-}
-
-static ssize_t rfkill_state_show(struct device *dev,
-				 struct device_attribute *attr,
-				 char *buf)
-{
-	struct rfkill *rfkill = to_rfkill(dev);
-
-	update_rfkill_state(rfkill);
-	return sprintf(buf, "%d\n", rfkill->state);
-}
-
-static ssize_t rfkill_state_store(struct device *dev,
-				  struct device_attribute *attr,
-				  const char *buf, size_t count)
-{
-	struct rfkill *rfkill = to_rfkill(dev);
-	unsigned long state;
-	int error;
-
-	if (!capable(CAP_NET_ADMIN))
-		return -EPERM;
-
-	error = strict_strtoul(buf, 0, &state);
-	if (error)
-		return error;
-
-	/* RFKILL_STATE_HARD_BLOCKED is illegal here... */
-	if (state != RFKILL_STATE_UNBLOCKED &&
-	    state != RFKILL_STATE_SOFT_BLOCKED)
-		return -EINVAL;
-
-	error = mutex_lock_killable(&rfkill->mutex);
-	if (error)
-		return error;
-
-	if (!rfkill_epo_lock_active)
-		error = rfkill_toggle_radio(rfkill, state, 0);
-	else
-		error = -EPERM;
-
-	mutex_unlock(&rfkill->mutex);
-
-	return error ? error : count;
-}
-
-static ssize_t rfkill_claim_show(struct device *dev,
-				 struct device_attribute *attr,
-				 char *buf)
-{
-	struct rfkill *rfkill = to_rfkill(dev);
-
-	return sprintf(buf, "%d\n", rfkill->user_claim);
-}
-
-static ssize_t rfkill_claim_store(struct device *dev,
-				  struct device_attribute *attr,
-				  const char *buf, size_t count)
-{
-	struct rfkill *rfkill = to_rfkill(dev);
-	unsigned long claim_tmp;
-	bool claim;
-	int error;
-
-	if (!capable(CAP_NET_ADMIN))
-		return -EPERM;
-
-	if (rfkill->user_claim_unsupported)
-		return -EOPNOTSUPP;
-
-	error = strict_strtoul(buf, 0, &claim_tmp);
-	if (error)
-		return error;
-	claim = !!claim_tmp;
-
-	/*
-	 * Take the global lock to make sure the kernel is not in
-	 * the middle of rfkill_switch_all
-	 */
-	error = mutex_lock_killable(&rfkill_global_mutex);
-	if (error)
-		return error;
-
-	if (rfkill->user_claim != claim) {
-		if (!claim && !rfkill_epo_lock_active) {
-			mutex_lock(&rfkill->mutex);
-			rfkill_toggle_radio(rfkill,
-					rfkill_global_states[rfkill->type].current_state,
-					0);
-			mutex_unlock(&rfkill->mutex);
-		}
-		rfkill->user_claim = claim;
-	}
-
-	mutex_unlock(&rfkill_global_mutex);
-
-	return error ? error : count;
-}
-
-static struct device_attribute rfkill_dev_attrs[] = {
-	__ATTR(name, S_IRUGO, rfkill_name_show, NULL),
-	__ATTR(type, S_IRUGO, rfkill_type_show, NULL),
-	__ATTR(state, S_IRUGO|S_IWUSR, rfkill_state_show, rfkill_state_store),
-	__ATTR(claim, S_IRUGO|S_IWUSR, rfkill_claim_show, rfkill_claim_store),
-	__ATTR_NULL
-};
-
-static void rfkill_release(struct device *dev)
-{
-	struct rfkill *rfkill = to_rfkill(dev);
-
-	kfree(rfkill);
-	module_put(THIS_MODULE);
-}
-
-#ifdef CONFIG_PM
-static int rfkill_suspend(struct device *dev, pm_message_t state)
-{
-	struct rfkill *rfkill = to_rfkill(dev);
-
-	/* mark class device as suspended */
-	if (dev->power.power_state.event != state.event)
-		dev->power.power_state = state;
-
-	/* store state for the resume handler */
-	rfkill->state_for_resume = rfkill->state;
-
-	return 0;
-}
-
-static int rfkill_resume(struct device *dev)
-{
-	struct rfkill *rfkill = to_rfkill(dev);
-	enum rfkill_state newstate;
-
-	if (dev->power.power_state.event != PM_EVENT_ON) {
-		mutex_lock(&rfkill->mutex);
-
-		dev->power.power_state.event = PM_EVENT_ON;
-
-		/*
-		 * rfkill->state could have been modified before we got
-		 * called, and won't be updated by rfkill_toggle_radio()
-		 * in force mode.  Sync it FIRST.
-		 */
-		if (rfkill->get_state &&
-		    !rfkill->get_state(rfkill->data, &newstate))
-			rfkill->state = newstate;
-
-		/*
-		 * If we are under EPO, kick transmitter offline,
-		 * otherwise restore to pre-suspend state.
-		 *
-		 * Issue a notification in any case
-		 */
-		rfkill_toggle_radio(rfkill,
-				rfkill_epo_lock_active ?
-					RFKILL_STATE_SOFT_BLOCKED :
-					rfkill->state_for_resume,
-				1);
-
-		mutex_unlock(&rfkill->mutex);
-	}
-
-	return 0;
-}
-#else
-#define rfkill_suspend NULL
-#define rfkill_resume NULL
-#endif
-
-static int rfkill_dev_uevent(struct device *dev, struct kobj_uevent_env *env)
-{
-	struct rfkill *rfkill = to_rfkill(dev);
-	int error;
-
-	error = add_uevent_var(env, "RFKILL_NAME=%s", rfkill->name);
-	if (error)
-		return error;
-	error = add_uevent_var(env, "RFKILL_TYPE=%s",
-				rfkill_get_type_str(rfkill->type));
-	if (error)
-		return error;
-	error = add_uevent_var(env, "RFKILL_STATE=%d", rfkill->state);
-	return error;
-}
-
-static struct class rfkill_class = {
-	.name		= "rfkill",
-	.dev_release	= rfkill_release,
-	.dev_attrs	= rfkill_dev_attrs,
-	.suspend	= rfkill_suspend,
-	.resume		= rfkill_resume,
-	.dev_uevent	= rfkill_dev_uevent,
-};
-
-static int rfkill_check_duplicity(const struct rfkill *rfkill)
-{
-	struct rfkill *p;
-	unsigned long seen[BITS_TO_LONGS(RFKILL_TYPE_MAX)];
-
-	memset(seen, 0, sizeof(seen));
-
-	list_for_each_entry(p, &rfkill_list, node) {
-		if (WARN((p == rfkill), KERN_WARNING
-				"rfkill: illegal attempt to register "
-				"an already registered rfkill struct\n"))
-			return -EEXIST;
-		set_bit(p->type, seen);
-	}
-
-	/* 0: first switch of its kind */
-	return (test_bit(rfkill->type, seen)) ? 1 : 0;
-}
-
-static int rfkill_add_switch(struct rfkill *rfkill)
-{
-	int error;
-
-	mutex_lock(&rfkill_global_mutex);
-
-	error = rfkill_check_duplicity(rfkill);
-	if (error < 0)
-		goto unlock_out;
-
-	if (!error) {
-		/* lock default after first use */
-		set_bit(rfkill->type, rfkill_states_lockdflt);
-		rfkill_global_states[rfkill->type].current_state =
-			rfkill_global_states[rfkill->type].default_state;
-	}
-
-	rfkill_toggle_radio(rfkill,
-			    rfkill_global_states[rfkill->type].current_state,
-			    0);
-
-	list_add_tail(&rfkill->node, &rfkill_list);
-
-	error = 0;
-unlock_out:
-	mutex_unlock(&rfkill_global_mutex);
-
-	return error;
-}
-
-static void rfkill_remove_switch(struct rfkill *rfkill)
-{
-	mutex_lock(&rfkill_global_mutex);
-	list_del_init(&rfkill->node);
-	mutex_unlock(&rfkill_global_mutex);
-
-	mutex_lock(&rfkill->mutex);
-	rfkill_toggle_radio(rfkill, RFKILL_STATE_SOFT_BLOCKED, 1);
-	mutex_unlock(&rfkill->mutex);
-}
-
-/**
- * rfkill_allocate - allocate memory for rfkill structure.
- * @parent: device that has rf switch on it
- * @type: type of the switch (RFKILL_TYPE_*)
- *
- * This function should be called by the network driver when it needs
- * rfkill structure.  Once the structure is allocated the driver should
- * finish its initialization by setting the name, private data, enable_radio
- * and disable_radio methods and then register it with rfkill_register().
- *
- * NOTE: If registration fails the structure shoudl be freed by calling
- * rfkill_free() otherwise rfkill_unregister() should be used.
- */
-struct rfkill * __must_check rfkill_allocate(struct device *parent,
-					     enum rfkill_type type)
-{
-	struct rfkill *rfkill;
-	struct device *dev;
-
-	if (WARN((type >= RFKILL_TYPE_MAX),
-			KERN_WARNING
-			"rfkill: illegal type %d passed as parameter "
-			"to rfkill_allocate\n", type))
-		return NULL;
-
-	rfkill = kzalloc(sizeof(struct rfkill), GFP_KERNEL);
-	if (!rfkill)
-		return NULL;
-
-	mutex_init(&rfkill->mutex);
-	INIT_LIST_HEAD(&rfkill->node);
-	rfkill->type = type;
-
-	dev = &rfkill->dev;
-	dev->class = &rfkill_class;
-	dev->parent = parent;
-	device_initialize(dev);
-
-	__module_get(THIS_MODULE);
-
-	return rfkill;
-}
-EXPORT_SYMBOL(rfkill_allocate);
-
-/**
- * rfkill_free - Mark rfkill structure for deletion
- * @rfkill: rfkill structure to be destroyed
- *
- * Decrements reference count of the rfkill structure so it is destroyed.
- * Note that rfkill_free() should _not_ be called after rfkill_unregister().
- */
-void rfkill_free(struct rfkill *rfkill)
-{
-	if (rfkill)
-		put_device(&rfkill->dev);
-}
-EXPORT_SYMBOL(rfkill_free);
-
-static void rfkill_led_trigger_register(struct rfkill *rfkill)
-{
-#ifdef CONFIG_RFKILL_LEDS
-	int error;
-
-	if (!rfkill->led_trigger.name)
-		rfkill->led_trigger.name = dev_name(&rfkill->dev);
-	if (!rfkill->led_trigger.activate)
-		rfkill->led_trigger.activate = rfkill_led_trigger_activate;
-	error = led_trigger_register(&rfkill->led_trigger);
-	if (error)
-		rfkill->led_trigger.name = NULL;
-#endif /* CONFIG_RFKILL_LEDS */
-}
-
-static void rfkill_led_trigger_unregister(struct rfkill *rfkill)
-{
-#ifdef CONFIG_RFKILL_LEDS
-	if (rfkill->led_trigger.name) {
-		led_trigger_unregister(&rfkill->led_trigger);
-		rfkill->led_trigger.name = NULL;
-	}
-#endif
-}
-
-/**
- * rfkill_register - Register a rfkill structure.
- * @rfkill: rfkill structure to be registered
- *
- * This function should be called by the network driver when the rfkill
- * structure needs to be registered. Immediately from registration the
- * switch driver should be able to service calls to toggle_radio.
- */
-int __must_check rfkill_register(struct rfkill *rfkill)
-{
-	static atomic_t rfkill_no = ATOMIC_INIT(0);
-	struct device *dev = &rfkill->dev;
-	int error;
-
-	if (WARN((!rfkill || !rfkill->toggle_radio ||
-			rfkill->type >= RFKILL_TYPE_MAX ||
-			rfkill->state >= RFKILL_STATE_MAX),
-			KERN_WARNING
-			"rfkill: attempt to register a "
-			"badly initialized rfkill struct\n"))
-		return -EINVAL;
-
-	dev_set_name(dev, "rfkill%ld", (long)atomic_inc_return(&rfkill_no) - 1);
-
-	rfkill_led_trigger_register(rfkill);
-
-	error = rfkill_add_switch(rfkill);
-	if (error) {
-		rfkill_led_trigger_unregister(rfkill);
-		return error;
-	}
-
-	error = device_add(dev);
-	if (error) {
-		rfkill_remove_switch(rfkill);
-		rfkill_led_trigger_unregister(rfkill);
-		return error;
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL(rfkill_register);
-
-/**
- * rfkill_unregister - Unregister a rfkill structure.
- * @rfkill: rfkill structure to be unregistered
- *
- * This function should be called by the network driver during device
- * teardown to destroy rfkill structure. Note that rfkill_free() should
- * _not_ be called after rfkill_unregister().
- */
-void rfkill_unregister(struct rfkill *rfkill)
-{
-	BUG_ON(!rfkill);
-	device_del(&rfkill->dev);
-	rfkill_remove_switch(rfkill);
-	rfkill_led_trigger_unregister(rfkill);
-	put_device(&rfkill->dev);
-}
-EXPORT_SYMBOL(rfkill_unregister);
-
-/**
- * rfkill_set_default - set initial value for a switch type
- * @type - the type of switch to set the default state of
- * @state - the new default state for that group of switches
- *
- * Sets the initial state rfkill should use for a given type.
- * The following initial states are allowed: RFKILL_STATE_SOFT_BLOCKED
- * and RFKILL_STATE_UNBLOCKED.
- *
- * This function is meant to be used by platform drivers for platforms
- * that can save switch state across power down/reboot.
- *
- * The default state for each switch type can be changed exactly once.
- * After a switch of that type is registered, the default state cannot
- * be changed anymore.  This guards against multiple drivers it the
- * same platform trying to set the initial switch default state, which
- * is not allowed.
- *
- * Returns -EPERM if the state has already been set once or is in use,
- * so drivers likely want to either ignore or at most printk(KERN_NOTICE)
- * if this function returns -EPERM.
- *
- * Returns 0 if the new default state was set, or an error if it
- * could not be set.
- */
-int rfkill_set_default(enum rfkill_type type, enum rfkill_state state)
-{
-	int error;
-
-	if (WARN((type >= RFKILL_TYPE_MAX ||
-			(state != RFKILL_STATE_SOFT_BLOCKED &&
-			 state != RFKILL_STATE_UNBLOCKED)),
-			KERN_WARNING
-			"rfkill: illegal state %d or type %d passed as "
-			"parameter to rfkill_set_default\n", state, type))
-		return -EINVAL;
-
-	mutex_lock(&rfkill_global_mutex);
-
-	if (!test_and_set_bit(type, rfkill_states_lockdflt)) {
-		rfkill_global_states[type].default_state = state;
-		rfkill_global_states[type].current_state = state;
-		error = 0;
-	} else
-		error = -EPERM;
-
-	mutex_unlock(&rfkill_global_mutex);
-	return error;
-}
-EXPORT_SYMBOL_GPL(rfkill_set_default);
-
-/*
- * Rfkill module initialization/deinitialization.
- */
-static int __init rfkill_init(void)
-{
-	int error;
-	int i;
-
-	/* RFKILL_STATE_HARD_BLOCKED is illegal here... */
-	if (rfkill_default_state != RFKILL_STATE_SOFT_BLOCKED &&
-	    rfkill_default_state != RFKILL_STATE_UNBLOCKED)
-		return -EINVAL;
-
-	for (i = 0; i < RFKILL_TYPE_MAX; i++)
-		rfkill_global_states[i].default_state = rfkill_default_state;
-
-	error = class_register(&rfkill_class);
-	if (error) {
-		printk(KERN_ERR "rfkill: unable to register rfkill class\n");
-		return error;
-	}
-
-	return 0;
-}
-
-static void __exit rfkill_exit(void)
-{
-	class_unregister(&rfkill_class);
-}
-
-subsys_initcall(rfkill_init);
-module_exit(rfkill_exit);
diff --git a/net/rfkill/rfkill-input.h b/net/rfkill/rfkill.h
index fe8df6b5b935..d1117cb6e4de 100644
--- a/net/rfkill/rfkill-input.h
+++ b/net/rfkill/rfkill.h
@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2007 Ivo van Doorn
+ * Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
  */
 
 /*
@@ -11,11 +12,16 @@
 #ifndef __RFKILL_INPUT_H
 #define __RFKILL_INPUT_H
 
-void rfkill_switch_all(enum rfkill_type type, enum rfkill_state state);
+/* core code */
+void rfkill_switch_all(const enum rfkill_type type, bool blocked);
 void rfkill_epo(void);
 void rfkill_restore_states(void);
 void rfkill_remove_epo_lock(void);
 bool rfkill_is_epo_lock_active(void);
-enum rfkill_state rfkill_get_global_state(const enum rfkill_type type);
+bool rfkill_get_global_sw_state(const enum rfkill_type type);
+
+/* input handler */
+int rfkill_handler_init(void);
+void rfkill_handler_exit(void);
 
 #endif /* __RFKILL_INPUT_H */
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index 877a7f65f707..6bd8e93869ed 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -356,8 +356,7 @@ void rose_destroy_socket(struct sock *sk)
 		kfree_skb(skb);
 	}
 
-	if (atomic_read(&sk->sk_wmem_alloc) ||
-	    atomic_read(&sk->sk_rmem_alloc)) {
+	if (sk_has_allocations(sk)) {
 		/* Defer: outstanding buffers */
 		setup_timer(&sk->sk_timer, rose_destroy_timer,
 				(unsigned long)sk);
@@ -1310,7 +1309,8 @@ static int rose_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 	switch (cmd) {
 	case TIOCOUTQ: {
 		long amount;
-		amount = sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc);
+
+		amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk);
 		if (amount < 0)
 			amount = 0;
 		return put_user(amount, (unsigned int __user *) argp);
@@ -1481,8 +1481,8 @@ static int rose_info_show(struct seq_file *seq, void *v)
 			rose->hb / HZ,
 			ax25_display_timer(&rose->idletimer) / (60 * HZ),
 			rose->idle / (60 * HZ),
-			atomic_read(&s->sk_wmem_alloc),
-			atomic_read(&s->sk_rmem_alloc),
+			sk_wmem_alloc_get(s),
+			sk_rmem_alloc_get(s),
 			s->sk_socket ? SOCK_INODE(s->sk_socket)->i_ino : 0L);
 	}
 
diff --git a/net/rose/rose_dev.c b/net/rose/rose_dev.c
index 7dcf2569613b..389d6e0d7740 100644
--- a/net/rose/rose_dev.c
+++ b/net/rose/rose_dev.c
@@ -137,7 +137,7 @@ static int rose_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	if (!netif_running(dev)) {
 		printk(KERN_ERR "ROSE: rose_xmit - called when iface is down\n");
-		return 1;
+		return NETDEV_TX_BUSY;
 	}
 	dev_kfree_skb(skb);
 	stats->tx_errors++;
diff --git a/net/rxrpc/ar-connection.c b/net/rxrpc/ar-connection.c
index 67e38a056240..9f1ce841a0bb 100644
--- a/net/rxrpc/ar-connection.c
+++ b/net/rxrpc/ar-connection.c
@@ -444,6 +444,11 @@ int rxrpc_connect_call(struct rxrpc_sock *rx,
 			conn = list_entry(bundle->avail_conns.next,
 					  struct rxrpc_connection,
 					  bundle_link);
+			if (conn->state >= RXRPC_CONN_REMOTELY_ABORTED) {
+				list_del_init(&conn->bundle_link);
+				bundle->num_conns--;
+				continue;
+			}
 			if (--conn->avail_calls == 0)
 				list_move(&conn->bundle_link,
 					  &bundle->busy_conns);
@@ -461,6 +466,11 @@ int rxrpc_connect_call(struct rxrpc_sock *rx,
 			conn = list_entry(bundle->unused_conns.next,
 					  struct rxrpc_connection,
 					  bundle_link);
+			if (conn->state >= RXRPC_CONN_REMOTELY_ABORTED) {
+				list_del_init(&conn->bundle_link);
+				bundle->num_conns--;
+				continue;
+			}
 			ASSERTCMP(conn->avail_calls, ==, RXRPC_MAXCALLS);
 			conn->avail_calls = RXRPC_MAXCALLS - 1;
 			ASSERT(conn->channels[0] == NULL &&
diff --git a/net/rxrpc/ar-connevent.c b/net/rxrpc/ar-connevent.c
index dc5cb1e19509..0505cdc4d6d4 100644
--- a/net/rxrpc/ar-connevent.c
+++ b/net/rxrpc/ar-connevent.c
@@ -150,11 +150,15 @@ static int rxrpc_process_event(struct rxrpc_connection *conn,
 	u32 serial;
 	int loop, ret;
 
-	if (conn->state >= RXRPC_CONN_REMOTELY_ABORTED)
+	if (conn->state >= RXRPC_CONN_REMOTELY_ABORTED) {
+		kleave(" = -ECONNABORTED [%u]", conn->state);
 		return -ECONNABORTED;
+	}
 
 	serial = ntohl(sp->hdr.serial);
 
+	_enter("{%d},{%u,%%%u},", conn->debug_id, sp->hdr.type, serial);
+
 	switch (sp->hdr.type) {
 	case RXRPC_PACKET_TYPE_ABORT:
 		if (skb_copy_bits(skb, 0, &tmp, sizeof(tmp)) < 0)
@@ -199,6 +203,7 @@ static int rxrpc_process_event(struct rxrpc_connection *conn,
 		return 0;
 
 	default:
+		_leave(" = -EPROTO [%u]", sp->hdr.type);
 		return -EPROTO;
 	}
 }
diff --git a/net/sched/act_police.c b/net/sched/act_police.c
index f8f047b61245..723964c3ee4f 100644
--- a/net/sched/act_police.c
+++ b/net/sched/act_police.c
@@ -294,6 +294,8 @@ static int tcf_act_police(struct sk_buff *skb, struct tc_action *a,
 	if (police->tcfp_ewma_rate &&
 	    police->tcf_rate_est.bps >= police->tcfp_ewma_rate) {
 		police->tcf_qstats.overlimits++;
+		if (police->tcf_action == TC_ACT_SHOT)
+			police->tcf_qstats.drops++;
 		spin_unlock(&police->tcf_lock);
 		return police->tcf_action;
 	}
@@ -327,6 +329,8 @@ static int tcf_act_police(struct sk_buff *skb, struct tc_action *a,
 	}
 
 	police->tcf_qstats.overlimits++;
+	if (police->tcf_action == TC_ACT_SHOT)
+		police->tcf_qstats.drops++;
 	spin_unlock(&police->tcf_lock);
 	return police->tcf_action;
 }
diff --git a/net/sched/cls_cgroup.c b/net/sched/cls_cgroup.c
index e5becb92b3e7..e4877ca6727c 100644
--- a/net/sched/cls_cgroup.c
+++ b/net/sched/cls_cgroup.c
@@ -62,13 +62,7 @@ static u64 read_classid(struct cgroup *cgrp, struct cftype *cft)
 
 static int write_classid(struct cgroup *cgrp, struct cftype *cft, u64 value)
 {
-	if (!cgroup_lock_live_group(cgrp))
-		return -ENODEV;
-
 	cgrp_cls_state(cgrp)->classid = (u32) value;
-
-	cgroup_unlock();
-
 	return 0;
 }
 
diff --git a/net/sched/cls_flow.c b/net/sched/cls_flow.c
index 0ef4e3065bcd..9402a7fd3785 100644
--- a/net/sched/cls_flow.c
+++ b/net/sched/cls_flow.c
@@ -84,7 +84,7 @@ static u32 flow_get_dst(const struct sk_buff *skb)
 	case htons(ETH_P_IPV6):
 		return ntohl(ipv6_hdr(skb)->daddr.s6_addr32[3]);
 	default:
-		return addr_fold(skb->dst) ^ (__force u16)skb->protocol;
+		return addr_fold(skb_dst(skb)) ^ (__force u16)skb->protocol;
 	}
 }
 
@@ -163,7 +163,7 @@ static u32 flow_get_proto_dst(const struct sk_buff *skb)
 		break;
 	}
 	default:
-		res = addr_fold(skb->dst) ^ (__force u16)skb->protocol;
+		res = addr_fold(skb_dst(skb)) ^ (__force u16)skb->protocol;
 	}
 
 	return res;
@@ -251,8 +251,8 @@ fallback:
 static u32 flow_get_rtclassid(const struct sk_buff *skb)
 {
 #ifdef CONFIG_NET_CLS_ROUTE
-	if (skb->dst)
-		return skb->dst->tclassid;
+	if (skb_dst(skb))
+		return skb_dst(skb)->tclassid;
 #endif
 	return 0;
 }
diff --git a/net/sched/cls_route.c b/net/sched/cls_route.c
index bdf1f4172eef..dd872d5383ef 100644
--- a/net/sched/cls_route.c
+++ b/net/sched/cls_route.c
@@ -137,7 +137,7 @@ static int route4_classify(struct sk_buff *skb, struct tcf_proto *tp,
 	u32 id, h;
 	int iif, dont_cache = 0;
 
-	if ((dst = skb->dst) == NULL)
+	if ((dst = skb_dst(skb)) == NULL)
 		goto failure;
 
 	id = dst->tclassid;
diff --git a/net/sched/em_meta.c b/net/sched/em_meta.c
index fad596bf32d7..18d85d259104 100644
--- a/net/sched/em_meta.c
+++ b/net/sched/em_meta.c
@@ -246,11 +246,11 @@ META_COLLECTOR(int_tcindex)
 
 META_COLLECTOR(int_rtclassid)
 {
-	if (unlikely(skb->dst == NULL))
+	if (unlikely(skb_dst(skb) == NULL))
 		*err = -1;
 	else
 #ifdef CONFIG_NET_CLS_ROUTE
-		dst->value = skb->dst->tclassid;
+		dst->value = skb_dst(skb)->tclassid;
 #else
 		dst->value = 0;
 #endif
@@ -258,10 +258,10 @@ META_COLLECTOR(int_rtclassid)
 
 META_COLLECTOR(int_rtiif)
 {
-	if (unlikely(skb->rtable == NULL))
+	if (unlikely(skb_rtable(skb) == NULL))
 		*err = -1;
 	else
-		dst->value = skb->rtable->fl.iif;
+		dst->value = skb_rtable(skb)->fl.iif;
 }
 
 /**************************************************************************
@@ -349,13 +349,13 @@ META_COLLECTOR(int_sk_type)
 META_COLLECTOR(int_sk_rmem_alloc)
 {
 	SKIP_NONLOCAL(skb);
-	dst->value = atomic_read(&skb->sk->sk_rmem_alloc);
+	dst->value = sk_rmem_alloc_get(skb->sk);
 }
 
 META_COLLECTOR(int_sk_wmem_alloc)
 {
 	SKIP_NONLOCAL(skb);
-	dst->value = atomic_read(&skb->sk->sk_wmem_alloc);
+	dst->value = sk_wmem_alloc_get(skb->sk);
 }
 
 META_COLLECTOR(int_sk_omem_alloc)
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 32009793307b..24d17ce9c294 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -484,7 +484,7 @@ void qdisc_watchdog_schedule(struct qdisc_watchdog *wd, psched_time_t expires)
 
 	wd->qdisc->flags |= TCQ_F_THROTTLED;
 	time = ktime_set(0, 0);
-	time = ktime_add_ns(time, PSCHED_US2NS(expires));
+	time = ktime_add_ns(time, PSCHED_TICKS2NS(expires));
 	hrtimer_start(&wd->timer, time, HRTIMER_MODE_ABS);
 }
 EXPORT_SYMBOL(qdisc_watchdog_schedule);
@@ -1680,7 +1680,7 @@ static int psched_show(struct seq_file *seq, void *v)
 
 	hrtimer_get_res(CLOCK_MONOTONIC, &ts);
 	seq_printf(seq, "%08x %08x %08x %08x\n",
-		   (u32)NSEC_PER_USEC, (u32)PSCHED_US2NS(1),
+		   (u32)NSEC_PER_USEC, (u32)PSCHED_TICKS2NS(1),
 		   1000000,
 		   (u32)NSEC_PER_SEC/(u32)ktime_to_ns(timespec_to_ktime(ts)));
 
diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c
index d728d8111732..23a167670fd5 100644
--- a/net/sched/sch_cbq.c
+++ b/net/sched/sch_cbq.c
@@ -509,7 +509,7 @@ static void cbq_ovl_delay(struct cbq_class *cl)
 			q->pmask |= (1<<TC_CBQ_MAXPRIO);
 
 			expires = ktime_set(0, 0);
-			expires = ktime_add_ns(expires, PSCHED_US2NS(sched));
+			expires = ktime_add_ns(expires, PSCHED_TICKS2NS(sched));
 			if (hrtimer_try_to_cancel(&q->delay_timer) &&
 			    ktime_to_ns(ktime_sub(
 					hrtimer_get_expires(&q->delay_timer),
@@ -620,7 +620,7 @@ static enum hrtimer_restart cbq_undelay(struct hrtimer *timer)
 		ktime_t time;
 
 		time = ktime_set(0, 0);
-		time = ktime_add_ns(time, PSCHED_US2NS(now + delay));
+		time = ktime_add_ns(time, PSCHED_TICKS2NS(now + delay));
 		hrtimer_start(&q->delay_timer, time, HRTIMER_MODE_ABS);
 	}
 
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 5f5efe4e6072..27d03816ec3e 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -196,6 +196,21 @@ void __qdisc_run(struct Qdisc *q)
 	clear_bit(__QDISC_STATE_RUNNING, &q->state);
 }
 
+unsigned long dev_trans_start(struct net_device *dev)
+{
+	unsigned long val, res = dev->trans_start;
+	unsigned int i;
+
+	for (i = 0; i < dev->num_tx_queues; i++) {
+		val = netdev_get_tx_queue(dev, i)->trans_start;
+		if (val && time_after(val, res))
+			res = val;
+	}
+	dev->trans_start = res;
+	return res;
+}
+EXPORT_SYMBOL(dev_trans_start);
+
 static void dev_watchdog(unsigned long arg)
 {
 	struct net_device *dev = (struct net_device *)arg;
@@ -205,25 +220,30 @@ static void dev_watchdog(unsigned long arg)
 		if (netif_device_present(dev) &&
 		    netif_running(dev) &&
 		    netif_carrier_ok(dev)) {
-			int some_queue_stopped = 0;
+			int some_queue_timedout = 0;
 			unsigned int i;
+			unsigned long trans_start;
 
 			for (i = 0; i < dev->num_tx_queues; i++) {
 				struct netdev_queue *txq;
 
 				txq = netdev_get_tx_queue(dev, i);
-				if (netif_tx_queue_stopped(txq)) {
-					some_queue_stopped = 1;
+				/*
+				 * old device drivers set dev->trans_start
+				 */
+				trans_start = txq->trans_start ? : dev->trans_start;
+				if (netif_tx_queue_stopped(txq) &&
+				    time_after(jiffies, (trans_start +
+							 dev->watchdog_timeo))) {
+					some_queue_timedout = 1;
 					break;
 				}
 			}
 
-			if (some_queue_stopped &&
-			    time_after(jiffies, (dev->trans_start +
-						 dev->watchdog_timeo))) {
+			if (some_queue_timedout) {
 				char drivername[64];
-				WARN_ONCE(1, KERN_INFO "NETDEV WATCHDOG: %s (%s): transmit timed out\n",
-				       dev->name, netdev_drivername(dev, drivername, 64));
+				WARN_ONCE(1, KERN_INFO "NETDEV WATCHDOG: %s (%s): transmit queue %u timed out\n",
+				       dev->name, netdev_drivername(dev, drivername, 64), i);
 				dev->netdev_ops->ndo_tx_timeout(dev);
 			}
 			if (!mod_timer(&dev->watchdog_timer,
@@ -602,8 +622,10 @@ static void transition_one_qdisc(struct net_device *dev,
 		clear_bit(__QDISC_STATE_DEACTIVATED, &new_qdisc->state);
 
 	rcu_assign_pointer(dev_queue->qdisc, new_qdisc);
-	if (need_watchdog_p && new_qdisc != &noqueue_qdisc)
+	if (need_watchdog_p && new_qdisc != &noqueue_qdisc) {
+		dev_queue->trans_start = 0;
 		*need_watchdog_p = 1;
+	}
 }
 
 void dev_activate(struct net_device *dev)
diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index 5022f9c1f34b..362c2811b2df 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -372,7 +372,7 @@ cftree_update(struct hfsc_class *cl)
  *	ism: (psched_us/byte) << ISM_SHIFT
  *	dx: psched_us
  *
- * The clock source resolution with ktime is 1.024us.
+ * The clock source resolution with ktime and PSCHED_SHIFT 10 is 1.024us.
  *
  * sm and ism are scaled in order to keep effective digits.
  * SM_SHIFT and ISM_SHIFT are selected to keep at least 4 effective
@@ -383,9 +383,11 @@ cftree_update(struct hfsc_class *cl)
  *  bytes/1.024us 12.8e-3    128e-3     1280e-3    12800e-3   128000e-3
  *
  *  1.024us/byte  78.125     7.8125     0.78125    0.078125   0.0078125
+ *
+ * So, for PSCHED_SHIFT 10 we need: SM_SHIFT 20, ISM_SHIFT 18.
  */
-#define	SM_SHIFT	20
-#define	ISM_SHIFT	18
+#define	SM_SHIFT	(30 - PSCHED_SHIFT)
+#define	ISM_SHIFT	(8 + PSCHED_SHIFT)
 
 #define	SM_MASK		((1ULL << SM_SHIFT) - 1)
 #define	ISM_MASK	((1ULL << ISM_SHIFT) - 1)
diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c
index 33133d27b539..8706920a6d45 100644
--- a/net/sched/sch_sfq.c
+++ b/net/sched/sch_sfq.c
@@ -149,7 +149,7 @@ static unsigned sfq_hash(struct sfq_sched_data *q, struct sk_buff *skb)
 		break;
 	}
 	default:
-		h = (unsigned long)skb->dst ^ skb->protocol;
+		h = (unsigned long)skb_dst(skb) ^ skb->protocol;
 		h2 = (unsigned long)skb->sk;
 	}
 
diff --git a/net/sched/sch_teql.c b/net/sched/sch_teql.c
index 3b6418297231..9c002b6e0533 100644
--- a/net/sched/sch_teql.c
+++ b/net/sched/sch_teql.c
@@ -58,7 +58,6 @@ struct teql_master
 	struct net_device *dev;
 	struct Qdisc *slaves;
 	struct list_head master_list;
-	struct net_device_stats stats;
 };
 
 struct teql_sched_data
@@ -223,7 +222,7 @@ __teql_resolve(struct sk_buff *skb, struct sk_buff *skb_res, struct net_device *
 {
 	struct netdev_queue *dev_queue = netdev_get_tx_queue(dev, 0);
 	struct teql_sched_data *q = qdisc_priv(dev_queue->qdisc);
-	struct neighbour *mn = skb->dst->neighbour;
+	struct neighbour *mn = skb_dst(skb)->neighbour;
 	struct neighbour *n = q->ncache;
 
 	if (mn->tbl == NULL)
@@ -263,8 +262,8 @@ static inline int teql_resolve(struct sk_buff *skb,
 		return -ENODEV;
 
 	if (dev->header_ops == NULL ||
-	    skb->dst == NULL ||
-	    skb->dst->neighbour == NULL)
+	    skb_dst(skb) == NULL ||
+	    skb_dst(skb)->neighbour == NULL)
 		return 0;
 	return __teql_resolve(skb, skb_res, dev);
 }
@@ -272,6 +271,7 @@ static inline int teql_resolve(struct sk_buff *skb,
 static int teql_master_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct teql_master *master = netdev_priv(dev);
+	struct netdev_queue *txq = netdev_get_tx_queue(dev, 0);
 	struct Qdisc *start, *q;
 	int busy;
 	int nores;
@@ -308,11 +308,12 @@ restart:
 				if (!netif_tx_queue_stopped(slave_txq) &&
 				    !netif_tx_queue_frozen(slave_txq) &&
 				    slave_ops->ndo_start_xmit(skb, slave) == 0) {
+					txq_trans_update(slave_txq);
 					__netif_tx_unlock(slave_txq);
 					master->slaves = NEXT_SLAVE(q);
 					netif_wake_queue(dev);
-					master->stats.tx_packets++;
-					master->stats.tx_bytes += length;
+					txq->tx_packets++;
+					txq->tx_bytes += length;
 					return 0;
 				}
 				__netif_tx_unlock(slave_txq);
@@ -337,12 +338,12 @@ restart:
 
 	if (busy) {
 		netif_stop_queue(dev);
-		return 1;
+		return NETDEV_TX_BUSY;
 	}
-	master->stats.tx_errors++;
+	dev->stats.tx_errors++;
 
 drop:
-	master->stats.tx_dropped++;
+	txq->tx_dropped++;
 	dev_kfree_skb(skb);
 	return 0;
 }
@@ -395,12 +396,6 @@ static int teql_master_close(struct net_device *dev)
 	return 0;
 }
 
-static struct net_device_stats *teql_master_stats(struct net_device *dev)
-{
-	struct teql_master *m = netdev_priv(dev);
-	return &m->stats;
-}
-
 static int teql_master_mtu(struct net_device *dev, int new_mtu)
 {
 	struct teql_master *m = netdev_priv(dev);
@@ -425,7 +420,6 @@ static const struct net_device_ops teql_netdev_ops = {
 	.ndo_open	= teql_master_open,
 	.ndo_stop	= teql_master_close,
 	.ndo_start_xmit	= teql_master_xmit,
-	.ndo_get_stats	= teql_master_stats,
 	.ndo_change_mtu	= teql_master_mtu,
 };
 
diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index f4b23043b610..525864bf4f07 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -293,7 +293,8 @@ static struct sctp_association *sctp_association_init(struct sctp_association *a
 	 * told otherwise.
 	 */
 	asoc->peer.ipv4_address = 1;
-	asoc->peer.ipv6_address = 1;
+	if (asoc->base.sk->sk_family == PF_INET6)
+		asoc->peer.ipv6_address = 1;
 	INIT_LIST_HEAD(&asoc->asocs);
 
 	asoc->autoclose = sp->autoclose;
@@ -566,6 +567,21 @@ void sctp_assoc_rm_peer(struct sctp_association *asoc,
 	if (asoc->init_last_sent_to == peer)
 		asoc->init_last_sent_to = NULL;
 
+	/* If we remove the transport an SHUTDOWN was last sent to, set it
+	 * to NULL. Combined with the update of the retran path above, this
+	 * will cause the next SHUTDOWN to be sent to the next available
+	 * transport, maintaining the cycle.
+	 */
+	if (asoc->shutdown_last_sent_to == peer)
+		asoc->shutdown_last_sent_to = NULL;
+
+	/* If we remove the transport an ASCONF was last sent to, set it to
+	 * NULL.
+	 */
+	if (asoc->addip_last_asconf &&
+	    asoc->addip_last_asconf->transport == peer)
+		asoc->addip_last_asconf->transport = NULL;
+
 	asoc->peer.transport_count--;
 
 	sctp_transport_free(peer);
@@ -1268,49 +1284,21 @@ void sctp_assoc_update_retran_path(struct sctp_association *asoc)
 				 ntohs(t->ipaddr.v4.sin_port));
 }
 
-/* Choose the transport for sending a INIT packet.  */
-struct sctp_transport *sctp_assoc_choose_init_transport(
-	struct sctp_association *asoc)
-{
-	struct sctp_transport *t;
-
-	/* Use the retran path. If the last INIT was sent over the
-	 * retran path, update the retran path and use it.
-	 */
-	if (!asoc->init_last_sent_to) {
-		t = asoc->peer.active_path;
-	} else {
-		if (asoc->init_last_sent_to == asoc->peer.retran_path)
-			sctp_assoc_update_retran_path(asoc);
-		t = asoc->peer.retran_path;
-	}
-
-	SCTP_DEBUG_PRINTK_IPADDR("sctp_assoc_update_retran_path:association"
-				 " %p addr: ",
-				 " port: %d\n",
-				 asoc,
-				 (&t->ipaddr),
-				 ntohs(t->ipaddr.v4.sin_port));
-
-	return t;
-}
-
-/* Choose the transport for sending a SHUTDOWN packet.  */
-struct sctp_transport *sctp_assoc_choose_shutdown_transport(
-	struct sctp_association *asoc)
+/* Choose the transport for sending retransmit packet.  */
+struct sctp_transport *sctp_assoc_choose_alter_transport(
+	struct sctp_association *asoc, struct sctp_transport *last_sent_to)
 {
-	/* If this is the first time SHUTDOWN is sent, use the active path,
-	 * else use the retran path. If the last SHUTDOWN was sent over the
+	/* If this is the first time packet is sent, use the active path,
+	 * else use the retran path. If the last packet was sent over the
 	 * retran path, update the retran path and use it.
 	 */
-	if (!asoc->shutdown_last_sent_to)
+	if (!last_sent_to)
 		return asoc->peer.active_path;
 	else {
-		if (asoc->shutdown_last_sent_to == asoc->peer.retran_path)
+		if (last_sent_to == asoc->peer.retran_path)
 			sctp_assoc_update_retran_path(asoc);
 		return asoc->peer.retran_path;
 	}
-
 }
 
 /* Update the association's pmtu and frag_point by going through all the
@@ -1482,6 +1470,10 @@ int sctp_assoc_set_id(struct sctp_association *asoc, gfp_t gfp)
 {
 	int assoc_id;
 	int error = 0;
+
+	/* If the id is already assigned, keep it. */
+	if (asoc->assoc_id)
+		return error;
 retry:
 	if (unlikely(!idr_pre_get(&sctp_assocs_id, gfp)))
 		return -ENOMEM;
diff --git a/net/sctp/input.c b/net/sctp/input.c
index d2e98803ffe3..c0c973e67add 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -81,13 +81,13 @@ static void sctp_add_backlog(struct sock *sk, struct sk_buff *skb);
 /* Calculate the SCTP checksum of an SCTP packet.  */
 static inline int sctp_rcv_checksum(struct sk_buff *skb)
 {
-	struct sk_buff *list = skb_shinfo(skb)->frag_list;
 	struct sctphdr *sh = sctp_hdr(skb);
 	__le32 cmp = sh->checksum;
+	struct sk_buff *list;
 	__le32 val;
 	__u32 tmp = sctp_start_cksum((__u8 *)sh, skb_headlen(skb));
 
-	for (; list; list = list->next)
+	skb_walk_frags(skb, list)
 		tmp = sctp_update_cksum((__u8 *)list->data, skb_headlen(list),
 					tmp);
 
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index a63de3f7f185..6a4b19094143 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -133,7 +133,7 @@ static struct notifier_block sctp_inet6addr_notifier = {
 
 /* ICMP error handler. */
 SCTP_STATIC void sctp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-			     int type, int code, int offset, __be32 info)
+			     u8 type, u8 code, int offset, __be32 info)
 {
 	struct inet6_dev *idev;
 	struct sock *sk;
diff --git a/net/sctp/output.c b/net/sctp/output.c
index 7d08f522ec84..b76411444515 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -405,13 +405,14 @@ int sctp_packet_transmit(struct sctp_packet *packet)
 			sctp_assoc_sync_pmtu(asoc);
 		}
 	}
-	nskb->dst = dst_clone(tp->dst);
-	if (!nskb->dst)
+	dst = dst_clone(tp->dst);
+	skb_dst_set(nskb, dst);
+	if (dst)
 		goto no_route;
-	dst = nskb->dst;
 
 	/* Build the SCTP header.  */
 	sh = (struct sctphdr *)skb_push(nskb, sizeof(struct sctphdr));
+	skb_reset_transport_header(nskb);
 	sh->source = htons(packet->source_port);
 	sh->dest   = htons(packet->destination_port);
 
@@ -527,15 +528,25 @@ int sctp_packet_transmit(struct sctp_packet *packet)
 	 * Note: Adler-32 is no longer applicable, as has been replaced
 	 * by CRC32-C as described in <draft-ietf-tsvwg-sctpcsum-02.txt>.
 	 */
-	if (!sctp_checksum_disable && !(dst->dev->features & NETIF_F_NO_CSUM)) {
+	if (!sctp_checksum_disable &&
+	    !(dst->dev->features & (NETIF_F_NO_CSUM | NETIF_F_SCTP_CSUM))) {
 		__u32 crc32 = sctp_start_cksum((__u8 *)sh, cksum_buf_len);
 
 		/* 3) Put the resultant value into the checksum field in the
 		 *    common header, and leave the rest of the bits unchanged.
 		 */
 		sh->checksum = sctp_end_cksum(crc32);
-	} else
-		nskb->ip_summed = CHECKSUM_UNNECESSARY;
+	} else {
+		if (dst->dev->features & NETIF_F_SCTP_CSUM) {
+			/* no need to seed psuedo checksum for SCTP */
+			nskb->ip_summed = CHECKSUM_PARTIAL;
+			nskb->csum_start = (skb_transport_header(nskb) -
+			                    nskb->head);
+			nskb->csum_offset = offsetof(struct sctphdr, checksum);
+		} else {
+			nskb->ip_summed = CHECKSUM_UNNECESSARY;
+		}
+	}
 
 	/* IP layer ECN support
 	 * From RFC 2481
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 8eb3e61cb701..79cbd47f4df7 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -393,7 +393,7 @@ static int sctp_v4_addr_valid(union sctp_addr *addr,
 		return 0;
 
 	/* Is this a broadcast address? */
-	if (skb && skb->rtable->rt_flags & RTCF_BROADCAST)
+	if (skb && skb_rtable(skb)->rt_flags & RTCF_BROADCAST)
 		return 0;
 
 	return 1;
@@ -572,7 +572,7 @@ static void sctp_v4_get_saddr(struct sctp_sock *sk,
 /* What interface did this skb arrive on? */
 static int sctp_v4_skb_iif(const struct sk_buff *skb)
 {
-	return skb->rtable->rt_iif;
+	return skb_rtable(skb)->rt_iif;
 }
 
 /* Was this packet marked by Explicit Congestion Notification? */
@@ -848,8 +848,8 @@ static inline int sctp_v4_xmit(struct sk_buff *skb,
 
 	SCTP_DEBUG_PRINTK("%s: skb:%p, len:%d, src:%pI4, dst:%pI4\n",
 			  __func__, skb, skb->len,
-			  &skb->rtable->rt_src,
-			  &skb->rtable->rt_dst);
+			  &skb_rtable(skb)->rt_src,
+			  &skb_rtable(skb)->rt_dst);
 
 	inet->pmtudisc = transport->param_flags & SPP_PMTUD_ENABLE ?
 			 IP_PMTUDISC_DO : IP_PMTUDISC_DONT;
@@ -1370,6 +1370,8 @@ SCTP_STATIC __exit void sctp_exit(void)
 	sctp_proc_exit();
 	cleanup_sctp_mibs();
 
+	rcu_barrier(); /* Wait for completion of call_rcu()'s */
+
 	kmem_cache_destroy(sctp_chunk_cachep);
 	kmem_cache_destroy(sctp_bucket_cachep);
 }
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 6851ee94e974..61cc6075b0df 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -2864,19 +2864,19 @@ static __be16 sctp_process_asconf_param(struct sctp_association *asoc,
 	switch (addr_param->v4.param_hdr.type) {
 	case SCTP_PARAM_IPV6_ADDRESS:
 		if (!asoc->peer.ipv6_address)
-			return SCTP_ERROR_INV_PARAM;
+			return SCTP_ERROR_DNS_FAILED;
 		break;
 	case SCTP_PARAM_IPV4_ADDRESS:
 		if (!asoc->peer.ipv4_address)
-			return SCTP_ERROR_INV_PARAM;
+			return SCTP_ERROR_DNS_FAILED;
 		break;
 	default:
-		return SCTP_ERROR_INV_PARAM;
+		return SCTP_ERROR_DNS_FAILED;
 	}
 
 	af = sctp_get_af_specific(param_type2af(addr_param->v4.param_hdr.type));
 	if (unlikely(!af))
-		return SCTP_ERROR_INV_PARAM;
+		return SCTP_ERROR_DNS_FAILED;
 
 	af->from_addr_param(&addr, addr_param, htons(asoc->peer.port), 0);
 
@@ -2886,7 +2886,7 @@ static __be16 sctp_process_asconf_param(struct sctp_association *asoc,
 	 *  make sure we check for that)
 	 */
 	if (!af->is_any(&addr) && !af->addr_valid(&addr, NULL, asconf->skb))
-		return SCTP_ERROR_INV_PARAM;
+		return SCTP_ERROR_DNS_FAILED;
 
 	switch (asconf_param->param_hdr.type) {
 	case SCTP_PARAM_ADD_IP:
@@ -2954,12 +2954,12 @@ static __be16 sctp_process_asconf_param(struct sctp_association *asoc,
 
 		peer = sctp_assoc_lookup_paddr(asoc, &addr);
 		if (!peer)
-			return SCTP_ERROR_INV_PARAM;
+			return SCTP_ERROR_DNS_FAILED;
 
 		sctp_assoc_set_primary(asoc, peer);
 		break;
 	default:
-		return SCTP_ERROR_INV_PARAM;
+		return SCTP_ERROR_UNKNOWN_PARAM;
 		break;
 	}
 
@@ -3273,7 +3273,7 @@ int sctp_process_asconf_ack(struct sctp_association *asoc,
 			retval = 1;
 			break;
 
-		case SCTP_ERROR_INV_PARAM:
+		case SCTP_ERROR_UNKNOWN_PARAM:
 			/* Disable sending this type of asconf parameter in
 			 * future.
 			 */
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index e2020eb2c8ca..86426aac1600 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -686,7 +686,8 @@ static void sctp_cmd_setup_t2(sctp_cmd_seq_t *cmds,
 {
 	struct sctp_transport *t;
 
-	t = sctp_assoc_choose_shutdown_transport(asoc);
+	t = sctp_assoc_choose_alter_transport(asoc,
+					      asoc->shutdown_last_sent_to);
 	asoc->shutdown_last_sent_to = t;
 	asoc->timeouts[SCTP_EVENT_TIMEOUT_T2_SHUTDOWN] = t->rto;
 	chunk->transport = t;
@@ -777,7 +778,7 @@ static void sctp_cmd_setup_t4(sctp_cmd_seq_t *cmds,
 {
 	struct sctp_transport *t;
 
-	t = asoc->peer.active_path;
+	t = sctp_assoc_choose_alter_transport(asoc, chunk->transport);
 	asoc->timeouts[SCTP_EVENT_TIMEOUT_T4_RTO] = t->rto;
 	chunk->transport = t;
 }
@@ -1379,7 +1380,8 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 
 		case SCTP_CMD_INIT_CHOOSE_TRANSPORT:
 			chunk = cmd->obj.ptr;
-			t = sctp_assoc_choose_init_transport(asoc);
+			t = sctp_assoc_choose_alter_transport(asoc,
+						asoc->init_last_sent_to);
 			asoc->init_last_sent_to = t;
 			chunk->transport = t;
 			t->init_sent_count++;
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index 55a61aa69662..7288192f7df5 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -5432,9 +5432,13 @@ sctp_disposition_t sctp_sf_t2_timer_expire(const struct sctp_endpoint *ep,
 	if (!reply)
 		goto nomem;
 
-	/* Do some failure management (Section 8.2). */
-	sctp_add_cmd_sf(commands, SCTP_CMD_STRIKE,
-			SCTP_TRANSPORT(asoc->shutdown_last_sent_to));
+	/* Do some failure management (Section 8.2).
+	 * If we remove the transport an SHUTDOWN was last sent to, don't
+	 * do failure management.
+	 */
+	if (asoc->shutdown_last_sent_to)
+		sctp_add_cmd_sf(commands, SCTP_CMD_STRIKE,
+				SCTP_TRANSPORT(asoc->shutdown_last_sent_to));
 
 	/* Set the transport for the SHUTDOWN/ACK chunk and the timeout for
 	 * the T2-shutdown timer.
@@ -5471,7 +5475,9 @@ sctp_disposition_t sctp_sf_t4_timer_expire(
 	 * detection on the appropriate destination address as defined in
 	 * RFC2960 [5] section 8.1 and 8.2.
 	 */
-	sctp_add_cmd_sf(commands, SCTP_CMD_STRIKE, SCTP_TRANSPORT(transport));
+	if (transport)
+		sctp_add_cmd_sf(commands, SCTP_CMD_STRIKE,
+				SCTP_TRANSPORT(transport));
 
 	/* Reconfig T4 timer and transport. */
 	sctp_add_cmd_sf(commands, SCTP_CMD_SETUP_T4, SCTP_CHUNK(chunk));
diff --git a/net/sctp/sm_statetable.c b/net/sctp/sm_statetable.c
index 5c8186d88c61..6d9b3aafcc5d 100644
--- a/net/sctp/sm_statetable.c
+++ b/net/sctp/sm_statetable.c
@@ -698,7 +698,7 @@ chunk_event_table_unknown[SCTP_STATE_NUM_STATES] = {
 	TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
 	/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 	TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
-} /* TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT */
+} /* TYPE_SCTP_PRIMITIVE_ASCONF */
 
 /* The primary index for this table is the primitive type.
  * The secondary index for this table is the state.
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 5fb3a8c9792e..35ba035970a2 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -130,7 +130,7 @@ static inline int sctp_wspace(struct sctp_association *asoc)
 	if (asoc->ep->sndbuf_policy)
 		amt = asoc->sndbuf_used;
 	else
-		amt = atomic_read(&asoc->base.sk->sk_wmem_alloc);
+		amt = sk_wmem_alloc_get(asoc->base.sk);
 
 	if (amt >= asoc->base.sk->sk_sndbuf) {
 		if (asoc->base.sk->sk_userlocks & SOCK_SNDBUF_LOCK)
@@ -1100,6 +1100,15 @@ static int __sctp_connect(struct sock* sk,
 		goto out_free;
 	}
 
+	/* In case the user of sctp_connectx() wants an association
+	 * id back, assign one now.
+	 */
+	if (assoc_id) {
+		err = sctp_assoc_set_id(asoc, GFP_KERNEL);
+		if (err < 0)
+			goto out_free;
+	}
+
 	err = sctp_primitive_ASSOCIATE(asoc, NULL);
 	if (err < 0) {
 		goto out_free;
@@ -1120,7 +1129,7 @@ static int __sctp_connect(struct sock* sk,
 	timeo = sock_sndtimeo(sk, f_flags & O_NONBLOCK);
 
 	err = sctp_wait_for_connect(asoc, &timeo);
-	if (!err && assoc_id)
+	if ((err == 0 || err == -EINPROGRESS) && assoc_id)
 		*assoc_id = asoc->assoc_id;
 
 	/* Don't free association on exit. */
@@ -1264,6 +1273,34 @@ SCTP_STATIC int sctp_setsockopt_connectx(struct sock* sk,
 		return assoc_id;
 }
 
+/*
+ * New (hopefully final) interface for the API.  The option buffer is used
+ * both for the returned association id and the addresses.
+ */
+SCTP_STATIC int sctp_getsockopt_connectx3(struct sock* sk, int len,
+					char __user *optval,
+					int __user *optlen)
+{
+	sctp_assoc_t assoc_id = 0;
+	int err = 0;
+
+	if (len < sizeof(assoc_id))
+		return -EINVAL;
+
+	err = __sctp_setsockopt_connectx(sk,
+			(struct sockaddr __user *)(optval + sizeof(assoc_id)),
+			len - sizeof(assoc_id), &assoc_id);
+
+	if (err == 0 || err == -EINPROGRESS) {
+		if (copy_to_user(optval, &assoc_id, sizeof(assoc_id)))
+			return -EFAULT;
+		if (put_user(sizeof(assoc_id), optlen))
+			return -EFAULT;
+	}
+
+	return err;
+}
+
 /* API 3.1.4 close() - UDP Style Syntax
  * Applications use close() to perform graceful shutdown (as described in
  * Section 10.1 of [SCTP]) on ALL the associations currently represented
@@ -1844,7 +1881,7 @@ static int sctp_skb_pull(struct sk_buff *skb, int len)
 	len -= skb_len;
 	__skb_pull(skb, skb_len);
 
-	for (list = skb_shinfo(skb)->frag_list; list; list = list->next) {
+	skb_walk_frags(skb, list) {
 		rlen = sctp_skb_pull(list, len);
 		skb->len -= (len-rlen);
 		skb->data_len -= (len-rlen);
@@ -5578,6 +5615,9 @@ SCTP_STATIC int sctp_getsockopt(struct sock *sk, int level, int optname,
 		retval = sctp_getsockopt_local_addrs(sk, len, optval,
 						     optlen);
 		break;
+	case SCTP_SOCKOPT_CONNECTX3:
+		retval = sctp_getsockopt_connectx3(sk, len, optval, optlen);
+		break;
 	case SCTP_DEFAULT_SEND_PARAM:
 		retval = sctp_getsockopt_default_send_param(sk, len,
 							    optval, optlen);
@@ -6483,7 +6523,7 @@ static int sctp_writeable(struct sock *sk)
 {
 	int amt = 0;
 
-	amt = sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc);
+	amt = sk->sk_sndbuf - sk_wmem_alloc_get(sk);
 	if (amt < 0)
 		amt = 0;
 	return amt;
@@ -6620,7 +6660,7 @@ static void sctp_sock_rfree_frag(struct sk_buff *skb)
 		goto done;
 
 	/* Don't forget the fragments. */
-	for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next)
+	skb_walk_frags(skb, frag)
 		sctp_sock_rfree_frag(frag);
 
 done:
@@ -6635,7 +6675,7 @@ static void sctp_skb_set_owner_r_frag(struct sk_buff *skb, struct sock *sk)
 		goto done;
 
 	/* Don't forget the fragments. */
-	for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next)
+	skb_walk_frags(skb, frag)
 		sctp_skb_set_owner_r_frag(frag, sk);
 
 done:
diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c
index f58e994e6852..63eabbc71298 100644
--- a/net/sctp/sysctl.c
+++ b/net/sctp/sysctl.c
@@ -49,8 +49,8 @@ static int zero = 0;
 static int one = 1;
 static int timer_max = 86400000; /* ms in one day */
 static int int_max = INT_MAX;
-static long sack_timer_min = 1;
-static long sack_timer_max = 500;
+static int sack_timer_min = 1;
+static int sack_timer_max = 500;
 
 extern int sysctl_sctp_mem[3];
 extern int sysctl_sctp_rmem[3];
@@ -223,7 +223,7 @@ static ctl_table sctp_table[] = {
 		.ctl_name	= NET_SCTP_SACK_TIMEOUT,
 		.procname	= "sack_timeout",
 		.data		= &sctp_sack_timeout,
-		.maxlen		= sizeof(long),
+		.maxlen		= sizeof(int),
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec_minmax,
 		.strategy	= sysctl_intvec,
diff --git a/net/sctp/ulpevent.c b/net/sctp/ulpevent.c
index 5f186ca550d7..8b3560fd876d 100644
--- a/net/sctp/ulpevent.c
+++ b/net/sctp/ulpevent.c
@@ -976,9 +976,8 @@ static void sctp_ulpevent_receive_data(struct sctp_ulpevent *event,
 	 * In general, the skb passed from IP can have only 1 level of
 	 * fragments. But we allow multiple levels of fragments.
 	 */
-	for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next) {
+	skb_walk_frags(skb, frag)
 		sctp_ulpevent_receive_data(sctp_skb2event(frag), asoc);
-	}
 }
 
 /* Do accounting for bytes just read by user and release the references to
@@ -1003,7 +1002,7 @@ static void sctp_ulpevent_release_data(struct sctp_ulpevent *event)
 		goto done;
 
 	/* Don't forget the fragments. */
-	for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next) {
+	skb_walk_frags(skb, frag) {
 		/* NOTE:  skb_shinfos are recursive. Although IP returns
 		 * skb's with only 1 level of fragments, SCTP reassembly can
 		 * increase the levels.
@@ -1026,7 +1025,7 @@ static void sctp_ulpevent_release_frag_data(struct sctp_ulpevent *event)
 		goto done;
 
 	/* Don't forget the fragments. */
-	for (frag = skb_shinfo(skb)->frag_list; frag; frag = frag->next) {
+	skb_walk_frags(skb, frag) {
 		/* NOTE:  skb_shinfos are recursive. Although IP returns
 		 * skb's with only 1 level of fragments, SCTP reassembly can
 		 * increase the levels.
diff --git a/net/sunrpc/Makefile b/net/sunrpc/Makefile
index 5369aa369b35..db73fd2a3f0e 100644
--- a/net/sunrpc/Makefile
+++ b/net/sunrpc/Makefile
@@ -13,5 +13,6 @@ sunrpc-y := clnt.o xprt.o socklib.o xprtsock.o sched.o \
 	    rpcb_clnt.o timer.o xdr.o \
 	    sunrpc_syms.o cache.o rpc_pipe.o \
 	    svc_xprt.o
+sunrpc-$(CONFIG_NFS_V4_1) += backchannel_rqst.o bc_svc.o
 sunrpc-$(CONFIG_PROC_FS) += stats.o
 sunrpc-$(CONFIG_SYSCTL) += sysctl.o
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index e630b38a6047..66d458fc6920 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -1548,6 +1548,7 @@ static void __exit exit_rpcsec_gss(void)
 {
 	gss_svc_shutdown();
 	rpcauth_unregister(&authgss_ops);
+	rcu_barrier(); /* Wait for completion of call_rcu()'s */
 }
 
 MODULE_LICENSE("GPL");
diff --git a/net/sunrpc/backchannel_rqst.c b/net/sunrpc/backchannel_rqst.c
new file mode 100644
index 000000000000..553621fb2c41
--- /dev/null
+++ b/net/sunrpc/backchannel_rqst.c
@@ -0,0 +1,281 @@
+/******************************************************************************
+
+(c) 2007 Network Appliance, Inc.  All Rights Reserved.
+(c) 2009 NetApp.  All Rights Reserved.
+
+NetApp provides this source code under the GPL v2 License.
+The GPL v2 license is available at
+http://opensource.org/licenses/gpl-license.php.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+******************************************************************************/
+
+#include <linux/tcp.h>
+#include <linux/sunrpc/xprt.h>
+
+#ifdef RPC_DEBUG
+#define RPCDBG_FACILITY	RPCDBG_TRANS
+#endif
+
+#if defined(CONFIG_NFS_V4_1)
+
+/*
+ * Helper routines that track the number of preallocation elements
+ * on the transport.
+ */
+static inline int xprt_need_to_requeue(struct rpc_xprt *xprt)
+{
+	return xprt->bc_alloc_count > 0;
+}
+
+static inline void xprt_inc_alloc_count(struct rpc_xprt *xprt, unsigned int n)
+{
+	xprt->bc_alloc_count += n;
+}
+
+static inline int xprt_dec_alloc_count(struct rpc_xprt *xprt, unsigned int n)
+{
+	return xprt->bc_alloc_count -= n;
+}
+
+/*
+ * Free the preallocated rpc_rqst structure and the memory
+ * buffers hanging off of it.
+ */
+static void xprt_free_allocation(struct rpc_rqst *req)
+{
+	struct xdr_buf *xbufp;
+
+	dprintk("RPC:        free allocations for req= %p\n", req);
+	BUG_ON(test_bit(RPC_BC_PA_IN_USE, &req->rq_bc_pa_state));
+	xbufp = &req->rq_private_buf;
+	free_page((unsigned long)xbufp->head[0].iov_base);
+	xbufp = &req->rq_snd_buf;
+	free_page((unsigned long)xbufp->head[0].iov_base);
+	list_del(&req->rq_bc_pa_list);
+	kfree(req);
+}
+
+/*
+ * Preallocate up to min_reqs structures and related buffers for use
+ * by the backchannel.  This function can be called multiple times
+ * when creating new sessions that use the same rpc_xprt.  The
+ * preallocated buffers are added to the pool of resources used by
+ * the rpc_xprt.  Anyone of these resources may be used used by an
+ * incoming callback request.  It's up to the higher levels in the
+ * stack to enforce that the maximum number of session slots is not
+ * being exceeded.
+ *
+ * Some callback arguments can be large.  For example, a pNFS server
+ * using multiple deviceids.  The list can be unbound, but the client
+ * has the ability to tell the server the maximum size of the callback
+ * requests.  Each deviceID is 16 bytes, so allocate one page
+ * for the arguments to have enough room to receive a number of these
+ * deviceIDs.  The NFS client indicates to the pNFS server that its
+ * callback requests can be up to 4096 bytes in size.
+ */
+int xprt_setup_backchannel(struct rpc_xprt *xprt, unsigned int min_reqs)
+{
+	struct page *page_rcv = NULL, *page_snd = NULL;
+	struct xdr_buf *xbufp = NULL;
+	struct rpc_rqst *req, *tmp;
+	struct list_head tmp_list;
+	int i;
+
+	dprintk("RPC:       setup backchannel transport\n");
+
+	/*
+	 * We use a temporary list to keep track of the preallocated
+	 * buffers.  Once we're done building the list we splice it
+	 * into the backchannel preallocation list off of the rpc_xprt
+	 * struct.  This helps minimize the amount of time the list
+	 * lock is held on the rpc_xprt struct.  It also makes cleanup
+	 * easier in case of memory allocation errors.
+	 */
+	INIT_LIST_HEAD(&tmp_list);
+	for (i = 0; i < min_reqs; i++) {
+		/* Pre-allocate one backchannel rpc_rqst */
+		req = kzalloc(sizeof(struct rpc_rqst), GFP_KERNEL);
+		if (req == NULL) {
+			printk(KERN_ERR "Failed to create bc rpc_rqst\n");
+			goto out_free;
+		}
+
+		/* Add the allocated buffer to the tmp list */
+		dprintk("RPC:       adding req= %p\n", req);
+		list_add(&req->rq_bc_pa_list, &tmp_list);
+
+		req->rq_xprt = xprt;
+		INIT_LIST_HEAD(&req->rq_list);
+		INIT_LIST_HEAD(&req->rq_bc_list);
+
+		/* Preallocate one XDR receive buffer */
+		page_rcv = alloc_page(GFP_KERNEL);
+		if (page_rcv == NULL) {
+			printk(KERN_ERR "Failed to create bc receive xbuf\n");
+			goto out_free;
+		}
+		xbufp = &req->rq_rcv_buf;
+		xbufp->head[0].iov_base = page_address(page_rcv);
+		xbufp->head[0].iov_len = PAGE_SIZE;
+		xbufp->tail[0].iov_base = NULL;
+		xbufp->tail[0].iov_len = 0;
+		xbufp->page_len = 0;
+		xbufp->len = PAGE_SIZE;
+		xbufp->buflen = PAGE_SIZE;
+
+		/* Preallocate one XDR send buffer */
+		page_snd = alloc_page(GFP_KERNEL);
+		if (page_snd == NULL) {
+			printk(KERN_ERR "Failed to create bc snd xbuf\n");
+			goto out_free;
+		}
+
+		xbufp = &req->rq_snd_buf;
+		xbufp->head[0].iov_base = page_address(page_snd);
+		xbufp->head[0].iov_len = 0;
+		xbufp->tail[0].iov_base = NULL;
+		xbufp->tail[0].iov_len = 0;
+		xbufp->page_len = 0;
+		xbufp->len = 0;
+		xbufp->buflen = PAGE_SIZE;
+	}
+
+	/*
+	 * Add the temporary list to the backchannel preallocation list
+	 */
+	spin_lock_bh(&xprt->bc_pa_lock);
+	list_splice(&tmp_list, &xprt->bc_pa_list);
+	xprt_inc_alloc_count(xprt, min_reqs);
+	spin_unlock_bh(&xprt->bc_pa_lock);
+
+	dprintk("RPC:       setup backchannel transport done\n");
+	return 0;
+
+out_free:
+	/*
+	 * Memory allocation failed, free the temporary list
+	 */
+	list_for_each_entry_safe(req, tmp, &tmp_list, rq_bc_pa_list)
+		xprt_free_allocation(req);
+
+	dprintk("RPC:       setup backchannel transport failed\n");
+	return -1;
+}
+EXPORT_SYMBOL(xprt_setup_backchannel);
+
+/*
+ * Destroys the backchannel preallocated structures.
+ * Since these structures may have been allocated by multiple calls
+ * to xprt_setup_backchannel, we only destroy up to the maximum number
+ * of reqs specified by the caller.
+ * @xprt:	the transport holding the preallocated strucures
+ * @max_reqs	the maximum number of preallocated structures to destroy
+ */
+void xprt_destroy_backchannel(struct rpc_xprt *xprt, unsigned int max_reqs)
+{
+	struct rpc_rqst *req = NULL, *tmp = NULL;
+
+	dprintk("RPC:        destroy backchannel transport\n");
+
+	BUG_ON(max_reqs == 0);
+	spin_lock_bh(&xprt->bc_pa_lock);
+	xprt_dec_alloc_count(xprt, max_reqs);
+	list_for_each_entry_safe(req, tmp, &xprt->bc_pa_list, rq_bc_pa_list) {
+		dprintk("RPC:        req=%p\n", req);
+		xprt_free_allocation(req);
+		if (--max_reqs == 0)
+			break;
+	}
+	spin_unlock_bh(&xprt->bc_pa_lock);
+
+	dprintk("RPC:        backchannel list empty= %s\n",
+		list_empty(&xprt->bc_pa_list) ? "true" : "false");
+}
+EXPORT_SYMBOL(xprt_destroy_backchannel);
+
+/*
+ * One or more rpc_rqst structure have been preallocated during the
+ * backchannel setup.  Buffer space for the send and private XDR buffers
+ * has been preallocated as well.  Use xprt_alloc_bc_request to allocate
+ * to this request.  Use xprt_free_bc_request to return it.
+ *
+ * We know that we're called in soft interrupt context, grab the spin_lock
+ * since there is no need to grab the bottom half spin_lock.
+ *
+ * Return an available rpc_rqst, otherwise NULL if non are available.
+ */
+struct rpc_rqst *xprt_alloc_bc_request(struct rpc_xprt *xprt)
+{
+	struct rpc_rqst *req;
+
+	dprintk("RPC:       allocate a backchannel request\n");
+	spin_lock(&xprt->bc_pa_lock);
+	if (!list_empty(&xprt->bc_pa_list)) {
+		req = list_first_entry(&xprt->bc_pa_list, struct rpc_rqst,
+				rq_bc_pa_list);
+		list_del(&req->rq_bc_pa_list);
+	} else {
+		req = NULL;
+	}
+	spin_unlock(&xprt->bc_pa_lock);
+
+	if (req != NULL) {
+		set_bit(RPC_BC_PA_IN_USE, &req->rq_bc_pa_state);
+		req->rq_reply_bytes_recvd = 0;
+		req->rq_bytes_sent = 0;
+		memcpy(&req->rq_private_buf, &req->rq_rcv_buf,
+			sizeof(req->rq_private_buf));
+	}
+	dprintk("RPC:       backchannel req=%p\n", req);
+	return req;
+}
+
+/*
+ * Return the preallocated rpc_rqst structure and XDR buffers
+ * associated with this rpc_task.
+ */
+void xprt_free_bc_request(struct rpc_rqst *req)
+{
+	struct rpc_xprt *xprt = req->rq_xprt;
+
+	dprintk("RPC:       free backchannel req=%p\n", req);
+
+	smp_mb__before_clear_bit();
+	BUG_ON(!test_bit(RPC_BC_PA_IN_USE, &req->rq_bc_pa_state));
+	clear_bit(RPC_BC_PA_IN_USE, &req->rq_bc_pa_state);
+	smp_mb__after_clear_bit();
+
+	if (!xprt_need_to_requeue(xprt)) {
+		/*
+		 * The last remaining session was destroyed while this
+		 * entry was in use.  Free the entry and don't attempt
+		 * to add back to the list because there is no need to
+		 * have anymore preallocated entries.
+		 */
+		dprintk("RPC:       Last session removed req=%p\n", req);
+		xprt_free_allocation(req);
+		return;
+	}
+
+	/*
+	 * Return it to the list of preallocations so that it
+	 * may be reused by a new callback request.
+	 */
+	spin_lock_bh(&xprt->bc_pa_lock);
+	list_add(&req->rq_bc_pa_list, &xprt->bc_pa_list);
+	spin_unlock_bh(&xprt->bc_pa_lock);
+}
+
+#endif /* CONFIG_NFS_V4_1 */
diff --git a/net/sunrpc/bc_svc.c b/net/sunrpc/bc_svc.c
new file mode 100644
index 000000000000..13f214f53120
--- /dev/null
+++ b/net/sunrpc/bc_svc.c
@@ -0,0 +1,81 @@
+/******************************************************************************
+
+(c) 2007 Network Appliance, Inc.  All Rights Reserved.
+(c) 2009 NetApp.  All Rights Reserved.
+
+NetApp provides this source code under the GPL v2 License.
+The GPL v2 license is available at
+http://opensource.org/licenses/gpl-license.php.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+******************************************************************************/
+
+/*
+ * The NFSv4.1 callback service helper routines.
+ * They implement the transport level processing required to send the
+ * reply over an existing open connection previously established by the client.
+ */
+
+#if defined(CONFIG_NFS_V4_1)
+
+#include <linux/module.h>
+
+#include <linux/sunrpc/xprt.h>
+#include <linux/sunrpc/sched.h>
+#include <linux/sunrpc/bc_xprt.h>
+
+#define RPCDBG_FACILITY	RPCDBG_SVCDSP
+
+void bc_release_request(struct rpc_task *task)
+{
+	struct rpc_rqst *req = task->tk_rqstp;
+
+	dprintk("RPC:       bc_release_request: task= %p\n", task);
+
+	/*
+	 * Release this request only if it's a backchannel
+	 * preallocated request
+	 */
+	if (!bc_prealloc(req))
+		return;
+	xprt_free_bc_request(req);
+}
+
+/* Empty callback ops */
+static const struct rpc_call_ops nfs41_callback_ops = {
+};
+
+
+/*
+ * Send the callback reply
+ */
+int bc_send(struct rpc_rqst *req)
+{
+	struct rpc_task *task;
+	int ret;
+
+	dprintk("RPC:       bc_send req= %p\n", req);
+	task = rpc_run_bc_task(req, &nfs41_callback_ops);
+	if (IS_ERR(task))
+		ret = PTR_ERR(task);
+	else {
+		BUG_ON(atomic_read(&task->tk_count) != 1);
+		ret = task->tk_status;
+		rpc_put_task(task);
+	}
+	return ret;
+	dprintk("RPC:       bc_send ret= %d \n", ret);
+}
+
+#endif /* CONFIG_NFS_V4_1 */
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index 20029a79a5de..ff0c23053d2f 100644
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -488,7 +488,7 @@ static void do_cache_clean(struct work_struct *work)
 {
 	int delay = 5;
 	if (cache_clean() == -1)
-		delay = 30*HZ;
+		delay = round_jiffies_relative(30*HZ);
 
 	if (list_empty(&cache_list))
 		delay = 0;
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 5abab094441f..5bc2f45bddf0 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -36,7 +36,9 @@
 #include <linux/sunrpc/clnt.h>
 #include <linux/sunrpc/rpc_pipe_fs.h>
 #include <linux/sunrpc/metrics.h>
+#include <linux/sunrpc/bc_xprt.h>
 
+#include "sunrpc.h"
 
 #ifdef RPC_DEBUG
 # define RPCDBG_FACILITY	RPCDBG_CALL
@@ -63,6 +65,9 @@ static void	call_decode(struct rpc_task *task);
 static void	call_bind(struct rpc_task *task);
 static void	call_bind_status(struct rpc_task *task);
 static void	call_transmit(struct rpc_task *task);
+#if defined(CONFIG_NFS_V4_1)
+static void	call_bc_transmit(struct rpc_task *task);
+#endif /* CONFIG_NFS_V4_1 */
 static void	call_status(struct rpc_task *task);
 static void	call_transmit_status(struct rpc_task *task);
 static void	call_refresh(struct rpc_task *task);
@@ -613,6 +618,50 @@ rpc_call_async(struct rpc_clnt *clnt, const struct rpc_message *msg, int flags,
 }
 EXPORT_SYMBOL_GPL(rpc_call_async);
 
+#if defined(CONFIG_NFS_V4_1)
+/**
+ * rpc_run_bc_task - Allocate a new RPC task for backchannel use, then run
+ * rpc_execute against it
+ * @ops: RPC call ops
+ */
+struct rpc_task *rpc_run_bc_task(struct rpc_rqst *req,
+					const struct rpc_call_ops *tk_ops)
+{
+	struct rpc_task *task;
+	struct xdr_buf *xbufp = &req->rq_snd_buf;
+	struct rpc_task_setup task_setup_data = {
+		.callback_ops = tk_ops,
+	};
+
+	dprintk("RPC: rpc_run_bc_task req= %p\n", req);
+	/*
+	 * Create an rpc_task to send the data
+	 */
+	task = rpc_new_task(&task_setup_data);
+	if (!task) {
+		xprt_free_bc_request(req);
+		goto out;
+	}
+	task->tk_rqstp = req;
+
+	/*
+	 * Set up the xdr_buf length.
+	 * This also indicates that the buffer is XDR encoded already.
+	 */
+	xbufp->len = xbufp->head[0].iov_len + xbufp->page_len +
+			xbufp->tail[0].iov_len;
+
+	task->tk_action = call_bc_transmit;
+	atomic_inc(&task->tk_count);
+	BUG_ON(atomic_read(&task->tk_count) != 2);
+	rpc_execute(task);
+
+out:
+	dprintk("RPC: rpc_run_bc_task: task= %p\n", task);
+	return task;
+}
+#endif /* CONFIG_NFS_V4_1 */
+
 void
 rpc_call_start(struct rpc_task *task)
 {
@@ -695,6 +744,19 @@ void rpc_force_rebind(struct rpc_clnt *clnt)
 EXPORT_SYMBOL_GPL(rpc_force_rebind);
 
 /*
+ * Restart an (async) RPC call from the call_prepare state.
+ * Usually called from within the exit handler.
+ */
+void
+rpc_restart_call_prepare(struct rpc_task *task)
+{
+	if (RPC_ASSASSINATED(task))
+		return;
+	task->tk_action = rpc_prepare_task;
+}
+EXPORT_SYMBOL_GPL(rpc_restart_call_prepare);
+
+/*
  * Restart an (async) RPC call. Usually called from within the
  * exit handler.
  */
@@ -1085,7 +1147,7 @@ call_transmit(struct rpc_task *task)
 	 * in order to allow access to the socket to other RPC requests.
 	 */
 	call_transmit_status(task);
-	if (task->tk_msg.rpc_proc->p_decode != NULL)
+	if (rpc_reply_expected(task))
 		return;
 	task->tk_action = rpc_exit_task;
 	rpc_wake_up_queued_task(&task->tk_xprt->pending, task);
@@ -1120,6 +1182,72 @@ call_transmit_status(struct rpc_task *task)
 	}
 }
 
+#if defined(CONFIG_NFS_V4_1)
+/*
+ * 5b.	Send the backchannel RPC reply.  On error, drop the reply.  In
+ * addition, disconnect on connectivity errors.
+ */
+static void
+call_bc_transmit(struct rpc_task *task)
+{
+	struct rpc_rqst *req = task->tk_rqstp;
+
+	BUG_ON(task->tk_status != 0);
+	task->tk_status = xprt_prepare_transmit(task);
+	if (task->tk_status == -EAGAIN) {
+		/*
+		 * Could not reserve the transport. Try again after the
+		 * transport is released.
+		 */
+		task->tk_status = 0;
+		task->tk_action = call_bc_transmit;
+		return;
+	}
+
+	task->tk_action = rpc_exit_task;
+	if (task->tk_status < 0) {
+		printk(KERN_NOTICE "RPC: Could not send backchannel reply "
+			"error: %d\n", task->tk_status);
+		return;
+	}
+
+	xprt_transmit(task);
+	xprt_end_transmit(task);
+	dprint_status(task);
+	switch (task->tk_status) {
+	case 0:
+		/* Success */
+		break;
+	case -EHOSTDOWN:
+	case -EHOSTUNREACH:
+	case -ENETUNREACH:
+	case -ETIMEDOUT:
+		/*
+		 * Problem reaching the server.  Disconnect and let the
+		 * forechannel reestablish the connection.  The server will
+		 * have to retransmit the backchannel request and we'll
+		 * reprocess it.  Since these ops are idempotent, there's no
+		 * need to cache our reply at this time.
+		 */
+		printk(KERN_NOTICE "RPC: Could not send backchannel reply "
+			"error: %d\n", task->tk_status);
+		xprt_conditional_disconnect(task->tk_xprt,
+			req->rq_connect_cookie);
+		break;
+	default:
+		/*
+		 * We were unable to reply and will have to drop the
+		 * request.  The server should reconnect and retransmit.
+		 */
+		BUG_ON(task->tk_status == -EAGAIN);
+		printk(KERN_NOTICE "RPC: Could not send backchannel reply "
+			"error: %d\n", task->tk_status);
+		break;
+	}
+	rpc_wake_up_queued_task(&req->rq_xprt->pending, task);
+}
+#endif /* CONFIG_NFS_V4_1 */
+
 /*
  * 6.	Sort out the RPC call status
  */
@@ -1130,8 +1258,8 @@ call_status(struct rpc_task *task)
 	struct rpc_rqst	*req = task->tk_rqstp;
 	int		status;
 
-	if (req->rq_received > 0 && !req->rq_bytes_sent)
-		task->tk_status = req->rq_received;
+	if (req->rq_reply_bytes_recvd > 0 && !req->rq_bytes_sent)
+		task->tk_status = req->rq_reply_bytes_recvd;
 
 	dprint_status(task);
 
@@ -1248,7 +1376,7 @@ call_decode(struct rpc_task *task)
 
 	/*
 	 * Ensure that we see all writes made by xprt_complete_rqst()
-	 * before it changed req->rq_received.
+	 * before it changed req->rq_reply_bytes_recvd.
 	 */
 	smp_rmb();
 	req->rq_rcv_buf.len = req->rq_private_buf.len;
@@ -1289,7 +1417,7 @@ out_retry:
 	task->tk_status = 0;
 	/* Note: rpc_verify_header() may have freed the RPC slot */
 	if (task->tk_rqstp == req) {
-		req->rq_received = req->rq_rcv_buf.len = 0;
+		req->rq_reply_bytes_recvd = req->rq_rcv_buf.len = 0;
 		if (task->tk_client->cl_discrtry)
 			xprt_conditional_disconnect(task->tk_xprt,
 					req->rq_connect_cookie);
@@ -1377,13 +1505,14 @@ rpc_verify_header(struct rpc_task *task)
 	}
 	if ((len -= 3) < 0)
 		goto out_overflow;
-	p += 1;	/* skip XID */
 
+	p += 1; /* skip XID */
 	if ((n = ntohl(*p++)) != RPC_REPLY) {
 		dprintk("RPC: %5u %s: not an RPC reply: %x\n",
-				task->tk_pid, __func__, n);
+			task->tk_pid, __func__, n);
 		goto out_garbage;
 	}
+
 	if ((n = ntohl(*p++)) != RPC_MSG_ACCEPTED) {
 		if (--len < 0)
 			goto out_overflow;
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index ff50a0546865..1102ce1251f7 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -569,7 +569,7 @@ EXPORT_SYMBOL_GPL(rpc_delay);
 /*
  * Helper to call task->tk_ops->rpc_call_prepare
  */
-static void rpc_prepare_task(struct rpc_task *task)
+void rpc_prepare_task(struct rpc_task *task)
 {
 	task->tk_ops->rpc_call_prepare(task, task->tk_calldata);
 }
diff --git a/net/sunrpc/stats.c b/net/sunrpc/stats.c
index 1ef6e46d9da2..1b4e6791ecf3 100644
--- a/net/sunrpc/stats.c
+++ b/net/sunrpc/stats.c
@@ -141,12 +141,14 @@ EXPORT_SYMBOL_GPL(rpc_free_iostats);
 void rpc_count_iostats(struct rpc_task *task)
 {
 	struct rpc_rqst *req = task->tk_rqstp;
-	struct rpc_iostats *stats = task->tk_client->cl_metrics;
+	struct rpc_iostats *stats;
 	struct rpc_iostats *op_metrics;
 	long rtt, execute, queue;
 
-	if (!stats || !req)
+	if (!task->tk_client || !task->tk_client->cl_metrics || !req)
 		return;
+
+	stats = task->tk_client->cl_metrics;
 	op_metrics = &stats[task->tk_msg.rpc_proc->p_statidx];
 
 	op_metrics->om_ops++;
@@ -154,7 +156,7 @@ void rpc_count_iostats(struct rpc_task *task)
 	op_metrics->om_timeouts += task->tk_timeouts;
 
 	op_metrics->om_bytes_sent += task->tk_bytes_sent;
-	op_metrics->om_bytes_recv += req->rq_received;
+	op_metrics->om_bytes_recv += req->rq_reply_bytes_recvd;
 
 	queue = (long)req->rq_xtime - task->tk_start;
 	if (queue < 0)
diff --git a/net/sunrpc/sunrpc.h b/net/sunrpc/sunrpc.h
new file mode 100644
index 000000000000..5d9dd742264b
--- /dev/null
+++ b/net/sunrpc/sunrpc.h
@@ -0,0 +1,37 @@
+/******************************************************************************
+
+(c) 2008 NetApp.  All Rights Reserved.
+
+NetApp provides this source code under the GPL v2 License.
+The GPL v2 license is available at
+http://opensource.org/licenses/gpl-license.php.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+******************************************************************************/
+
+/*
+ * Functions and macros used internally by RPC
+ */
+
+#ifndef _NET_SUNRPC_SUNRPC_H
+#define _NET_SUNRPC_SUNRPC_H
+
+static inline int rpc_reply_expected(struct rpc_task *task)
+{
+	return (task->tk_msg.rpc_proc != NULL) &&
+		(task->tk_msg.rpc_proc->p_decode != NULL);
+}
+
+#endif /* _NET_SUNRPC_SUNRPC_H */
+
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index 8847add6ca16..952f206ff307 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -25,6 +25,7 @@
 #include <linux/sunrpc/stats.h>
 #include <linux/sunrpc/svcsock.h>
 #include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/bc_xprt.h>
 
 #define RPCDBG_FACILITY	RPCDBG_SVCDSP
 
@@ -124,7 +125,7 @@ svc_pool_map_choose_mode(void)
 {
 	unsigned int node;
 
-	if (num_online_nodes() > 1) {
+	if (nr_online_nodes > 1) {
 		/*
 		 * Actually have multiple NUMA nodes,
 		 * so split pools on NUMA node boundaries
@@ -486,6 +487,10 @@ svc_destroy(struct svc_serv *serv)
 	if (svc_serv_is_pooled(serv))
 		svc_pool_map_put();
 
+#if defined(CONFIG_NFS_V4_1)
+	svc_sock_destroy(serv->bc_xprt);
+#endif /* CONFIG_NFS_V4_1 */
+
 	svc_unregister(serv);
 	kfree(serv->sv_pools);
 	kfree(serv);
@@ -970,20 +975,18 @@ svc_printk(struct svc_rqst *rqstp, const char *fmt, ...)
 }
 
 /*
- * Process the RPC request.
+ * Common routine for processing the RPC request.
  */
-int
-svc_process(struct svc_rqst *rqstp)
+static int
+svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv)
 {
 	struct svc_program	*progp;
 	struct svc_version	*versp = NULL;	/* compiler food */
 	struct svc_procedure	*procp = NULL;
-	struct kvec *		argv = &rqstp->rq_arg.head[0];
-	struct kvec *		resv = &rqstp->rq_res.head[0];
 	struct svc_serv		*serv = rqstp->rq_server;
 	kxdrproc_t		xdr;
 	__be32			*statp;
-	u32			dir, prog, vers, proc;
+	u32			prog, vers, proc;
 	__be32			auth_stat, rpc_stat;
 	int			auth_res;
 	__be32			*reply_statp;
@@ -993,19 +996,6 @@ svc_process(struct svc_rqst *rqstp)
 	if (argv->iov_len < 6*4)
 		goto err_short_len;
 
-	/* setup response xdr_buf.
-	 * Initially it has just one page
-	 */
-	rqstp->rq_resused = 1;
-	resv->iov_base = page_address(rqstp->rq_respages[0]);
-	resv->iov_len = 0;
-	rqstp->rq_res.pages = rqstp->rq_respages + 1;
-	rqstp->rq_res.len = 0;
-	rqstp->rq_res.page_base = 0;
-	rqstp->rq_res.page_len = 0;
-	rqstp->rq_res.buflen = PAGE_SIZE;
-	rqstp->rq_res.tail[0].iov_base = NULL;
-	rqstp->rq_res.tail[0].iov_len = 0;
 	/* Will be turned off only in gss privacy case: */
 	rqstp->rq_splice_ok = 1;
 	/* Will be turned off only when NFSv4 Sessions are used */
@@ -1014,17 +1004,13 @@ svc_process(struct svc_rqst *rqstp)
 	/* Setup reply header */
 	rqstp->rq_xprt->xpt_ops->xpo_prep_reply_hdr(rqstp);
 
-	rqstp->rq_xid = svc_getu32(argv);
 	svc_putu32(resv, rqstp->rq_xid);
 
-	dir  = svc_getnl(argv);
 	vers = svc_getnl(argv);
 
 	/* First words of reply: */
 	svc_putnl(resv, 1);		/* REPLY */
 
-	if (dir != 0)		/* direction != CALL */
-		goto err_bad_dir;
 	if (vers != 2)		/* RPC version number */
 		goto err_bad_rpc;
 
@@ -1147,7 +1133,7 @@ svc_process(struct svc_rqst *rqstp)
  sendit:
 	if (svc_authorise(rqstp))
 		goto dropit;
-	return svc_send(rqstp);
+	return 1;		/* Caller can now send it */
 
  dropit:
 	svc_authorise(rqstp);	/* doesn't hurt to call this twice */
@@ -1161,12 +1147,6 @@ err_short_len:
 
 	goto dropit;			/* drop request */
 
-err_bad_dir:
-	svc_printk(rqstp, "bad direction %d, dropping request\n", dir);
-
-	serv->sv_stats->rpcbadfmt++;
-	goto dropit;			/* drop request */
-
 err_bad_rpc:
 	serv->sv_stats->rpcbadfmt++;
 	svc_putnl(resv, 1);	/* REJECT */
@@ -1220,6 +1200,100 @@ err_bad:
 EXPORT_SYMBOL_GPL(svc_process);
 
 /*
+ * Process the RPC request.
+ */
+int
+svc_process(struct svc_rqst *rqstp)
+{
+	struct kvec		*argv = &rqstp->rq_arg.head[0];
+	struct kvec		*resv = &rqstp->rq_res.head[0];
+	struct svc_serv		*serv = rqstp->rq_server;
+	u32			dir;
+	int			error;
+
+	/*
+	 * Setup response xdr_buf.
+	 * Initially it has just one page
+	 */
+	rqstp->rq_resused = 1;
+	resv->iov_base = page_address(rqstp->rq_respages[0]);
+	resv->iov_len = 0;
+	rqstp->rq_res.pages = rqstp->rq_respages + 1;
+	rqstp->rq_res.len = 0;
+	rqstp->rq_res.page_base = 0;
+	rqstp->rq_res.page_len = 0;
+	rqstp->rq_res.buflen = PAGE_SIZE;
+	rqstp->rq_res.tail[0].iov_base = NULL;
+	rqstp->rq_res.tail[0].iov_len = 0;
+
+	rqstp->rq_xid = svc_getu32(argv);
+
+	dir  = svc_getnl(argv);
+	if (dir != 0) {
+		/* direction != CALL */
+		svc_printk(rqstp, "bad direction %d, dropping request\n", dir);
+		serv->sv_stats->rpcbadfmt++;
+		svc_drop(rqstp);
+		return 0;
+	}
+
+	error = svc_process_common(rqstp, argv, resv);
+	if (error <= 0)
+		return error;
+
+	return svc_send(rqstp);
+}
+
+#if defined(CONFIG_NFS_V4_1)
+/*
+ * Process a backchannel RPC request that arrived over an existing
+ * outbound connection
+ */
+int
+bc_svc_process(struct svc_serv *serv, struct rpc_rqst *req,
+	       struct svc_rqst *rqstp)
+{
+	struct kvec	*argv = &rqstp->rq_arg.head[0];
+	struct kvec	*resv = &rqstp->rq_res.head[0];
+	int 		error;
+
+	/* Build the svc_rqst used by the common processing routine */
+	rqstp->rq_xprt = serv->bc_xprt;
+	rqstp->rq_xid = req->rq_xid;
+	rqstp->rq_prot = req->rq_xprt->prot;
+	rqstp->rq_server = serv;
+
+	rqstp->rq_addrlen = sizeof(req->rq_xprt->addr);
+	memcpy(&rqstp->rq_addr, &req->rq_xprt->addr, rqstp->rq_addrlen);
+	memcpy(&rqstp->rq_arg, &req->rq_rcv_buf, sizeof(rqstp->rq_arg));
+	memcpy(&rqstp->rq_res, &req->rq_snd_buf, sizeof(rqstp->rq_res));
+
+	/* reset result send buffer "put" position */
+	resv->iov_len = 0;
+
+	if (rqstp->rq_prot != IPPROTO_TCP) {
+		printk(KERN_ERR "No support for Non-TCP transports!\n");
+		BUG();
+	}
+
+	/*
+	 * Skip the next two words because they've already been
+	 * processed in the trasport
+	 */
+	svc_getu32(argv);	/* XID */
+	svc_getnl(argv);	/* CALLDIR */
+
+	error = svc_process_common(rqstp, argv, resv);
+	if (error <= 0)
+		return error;
+
+	memcpy(&req->rq_snd_buf, &rqstp->rq_res, sizeof(req->rq_snd_buf));
+	return bc_send(req);
+}
+EXPORT_SYMBOL(bc_svc_process);
+#endif /* CONFIG_NFS_V4_1 */
+
+/*
  * Return (transport-specific) limit on the rpc payload.
  */
 u32 svc_max_payload(const struct svc_rqst *rqstp)
diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c
index c200d92e57e4..6f33d33cc064 100644
--- a/net/sunrpc/svc_xprt.c
+++ b/net/sunrpc/svc_xprt.c
@@ -11,6 +11,7 @@
 #include <net/sock.h>
 #include <linux/sunrpc/stats.h>
 #include <linux/sunrpc/svc_xprt.h>
+#include <linux/sunrpc/svcsock.h>
 
 #define RPCDBG_FACILITY	RPCDBG_SVCXPRT
 
@@ -1097,36 +1098,58 @@ struct svc_xprt *svc_find_xprt(struct svc_serv *serv, const char *xcl_name,
 }
 EXPORT_SYMBOL_GPL(svc_find_xprt);
 
-/*
- * Format a buffer with a list of the active transports. A zero for
- * the buflen parameter disables target buffer overflow checking.
+static int svc_one_xprt_name(const struct svc_xprt *xprt,
+			     char *pos, int remaining)
+{
+	int len;
+
+	len = snprintf(pos, remaining, "%s %u\n",
+			xprt->xpt_class->xcl_name,
+			svc_xprt_local_port(xprt));
+	if (len >= remaining)
+		return -ENAMETOOLONG;
+	return len;
+}
+
+/**
+ * svc_xprt_names - format a buffer with a list of transport names
+ * @serv: pointer to an RPC service
+ * @buf: pointer to a buffer to be filled in
+ * @buflen: length of buffer to be filled in
+ *
+ * Fills in @buf with a string containing a list of transport names,
+ * each name terminated with '\n'.
+ *
+ * Returns positive length of the filled-in string on success; otherwise
+ * a negative errno value is returned if an error occurs.
  */
-int svc_xprt_names(struct svc_serv *serv, char *buf, int buflen)
+int svc_xprt_names(struct svc_serv *serv, char *buf, const int buflen)
 {
 	struct svc_xprt *xprt;
-	char xprt_str[64];
-	int totlen = 0;
-	int len;
+	int len, totlen;
+	char *pos;
 
 	/* Sanity check args */
 	if (!serv)
 		return 0;
 
 	spin_lock_bh(&serv->sv_lock);
+
+	pos = buf;
+	totlen = 0;
 	list_for_each_entry(xprt, &serv->sv_permsocks, xpt_list) {
-		len = snprintf(xprt_str, sizeof(xprt_str),
-			       "%s %d\n", xprt->xpt_class->xcl_name,
-			       svc_xprt_local_port(xprt));
-		/* If the string was truncated, replace with error string */
-		if (len >= sizeof(xprt_str))
-			strcpy(xprt_str, "name-too-long\n");
-		/* Don't overflow buffer */
-		len = strlen(xprt_str);
-		if (buflen && (len + totlen >= buflen))
+		len = svc_one_xprt_name(xprt, pos, buflen - totlen);
+		if (len < 0) {
+			*buf = '\0';
+			totlen = len;
+		}
+		if (len <= 0)
 			break;
-		strcpy(buf+totlen, xprt_str);
+
+		pos += len;
 		totlen += len;
 	}
+
 	spin_unlock_bh(&serv->sv_lock);
 	return totlen;
 }
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 9d504234af4a..23128ee191ae 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -240,42 +240,76 @@ out:
 /*
  * Report socket names for nfsdfs
  */
-static int one_sock_name(char *buf, struct svc_sock *svsk)
+static int svc_one_sock_name(struct svc_sock *svsk, char *buf, int remaining)
 {
+	const struct sock *sk = svsk->sk_sk;
+	const char *proto_name = sk->sk_protocol == IPPROTO_UDP ?
+							"udp" : "tcp";
 	int len;
 
-	switch(svsk->sk_sk->sk_family) {
-	case AF_INET:
-		len = sprintf(buf, "ipv4 %s %pI4 %d\n",
-			      svsk->sk_sk->sk_protocol == IPPROTO_UDP ?
-			      "udp" : "tcp",
-			      &inet_sk(svsk->sk_sk)->rcv_saddr,
-			      inet_sk(svsk->sk_sk)->num);
+	switch (sk->sk_family) {
+	case PF_INET:
+		len = snprintf(buf, remaining, "ipv4 %s %pI4 %d\n",
+				proto_name,
+				&inet_sk(sk)->rcv_saddr,
+				inet_sk(sk)->num);
+		break;
+	case PF_INET6:
+		len = snprintf(buf, remaining, "ipv6 %s %pI6 %d\n",
+				proto_name,
+				&inet6_sk(sk)->rcv_saddr,
+				inet_sk(sk)->num);
 		break;
 	default:
-		len = sprintf(buf, "*unknown-%d*\n",
-			       svsk->sk_sk->sk_family);
+		len = snprintf(buf, remaining, "*unknown-%d*\n",
+				sk->sk_family);
+	}
+
+	if (len >= remaining) {
+		*buf = '\0';
+		return -ENAMETOOLONG;
 	}
 	return len;
 }
 
-int
-svc_sock_names(char *buf, struct svc_serv *serv, char *toclose)
+/**
+ * svc_sock_names - construct a list of listener names in a string
+ * @serv: pointer to RPC service
+ * @buf: pointer to a buffer to fill in with socket names
+ * @buflen: size of the buffer to be filled
+ * @toclose: pointer to '\0'-terminated C string containing the name
+ *		of a listener to be closed
+ *
+ * Fills in @buf with a '\n'-separated list of names of listener
+ * sockets.  If @toclose is not NULL, the socket named by @toclose
+ * is closed, and is not included in the output list.
+ *
+ * Returns positive length of the socket name string, or a negative
+ * errno value on error.
+ */
+int svc_sock_names(struct svc_serv *serv, char *buf, const size_t buflen,
+		   const char *toclose)
 {
 	struct svc_sock *svsk, *closesk = NULL;
 	int len = 0;
 
 	if (!serv)
 		return 0;
+
 	spin_lock_bh(&serv->sv_lock);
 	list_for_each_entry(svsk, &serv->sv_permsocks, sk_xprt.xpt_list) {
-		int onelen = one_sock_name(buf+len, svsk);
-		if (toclose && strcmp(toclose, buf+len) == 0)
+		int onelen = svc_one_sock_name(svsk, buf + len, buflen - len);
+		if (onelen < 0) {
+			len = onelen;
+			break;
+		}
+		if (toclose && strcmp(toclose, buf + len) == 0)
 			closesk = svsk;
 		else
 			len += onelen;
 	}
 	spin_unlock_bh(&serv->sv_lock);
+
 	if (closesk)
 		/* Should unregister with portmap, but you cannot
 		 * unregister just one protocol...
@@ -346,6 +380,7 @@ static void svc_sock_setbufsize(struct socket *sock, unsigned int snd,
 	sock->sk->sk_sndbuf = snd * 2;
 	sock->sk->sk_rcvbuf = rcv * 2;
 	sock->sk->sk_userlocks |= SOCK_SNDBUF_LOCK|SOCK_RCVBUF_LOCK;
+	sock->sk->sk_write_space(sock->sk);
 	release_sock(sock->sk);
 #endif
 }
@@ -387,6 +422,15 @@ static void svc_write_space(struct sock *sk)
 	}
 }
 
+static void svc_tcp_write_space(struct sock *sk)
+{
+	struct socket *sock = sk->sk_socket;
+
+	if (sk_stream_wspace(sk) >= sk_stream_min_wspace(sk) && sock)
+		clear_bit(SOCK_NOSPACE, &sock->flags);
+	svc_write_space(sk);
+}
+
 /*
  * Copy the UDP datagram's destination address to the rqstp structure.
  * The 'destination' address in this case is the address to which the
@@ -427,13 +471,14 @@ static int svc_udp_recvfrom(struct svc_rqst *rqstp)
 		long		all[SVC_PKTINFO_SPACE / sizeof(long)];
 	} buffer;
 	struct cmsghdr *cmh = &buffer.hdr;
-	int		err, len;
 	struct msghdr msg = {
 		.msg_name = svc_addr(rqstp),
 		.msg_control = cmh,
 		.msg_controllen = sizeof(buffer),
 		.msg_flags = MSG_DONTWAIT,
 	};
+	size_t len;
+	int err;
 
 	if (test_and_clear_bit(XPT_CHNGBUF, &svsk->sk_xprt.xpt_flags))
 	    /* udp sockets need large rcvbuf as all pending
@@ -465,8 +510,8 @@ static int svc_udp_recvfrom(struct svc_rqst *rqstp)
 		return -EAGAIN;
 	}
 	len = svc_addr_len(svc_addr(rqstp));
-	if (len < 0)
-		return len;
+	if (len == 0)
+		return -EAFNOSUPPORT;
 	rqstp->rq_addrlen = len;
 	if (skb->tstamp.tv64 == 0) {
 		skb->tstamp = ktime_get_real();
@@ -980,25 +1025,16 @@ static void svc_tcp_prep_reply_hdr(struct svc_rqst *rqstp)
 static int svc_tcp_has_wspace(struct svc_xprt *xprt)
 {
 	struct svc_sock *svsk =	container_of(xprt, struct svc_sock, sk_xprt);
-	struct svc_serv	*serv = svsk->sk_xprt.xpt_server;
+	struct svc_serv *serv = svsk->sk_xprt.xpt_server;
 	int required;
-	int wspace;
 
-	/*
-	 * Set the SOCK_NOSPACE flag before checking the available
-	 * sock space.
-	 */
+	if (test_bit(XPT_LISTENER, &xprt->xpt_flags))
+		return 1;
+	required = atomic_read(&xprt->xpt_reserved) + serv->sv_max_mesg;
+	if (sk_stream_wspace(svsk->sk_sk) >= required)
+		return 1;
 	set_bit(SOCK_NOSPACE, &svsk->sk_sock->flags);
-	required = atomic_read(&svsk->sk_xprt.xpt_reserved) + serv->sv_max_mesg;
-	wspace = sk_stream_wspace(svsk->sk_sk);
-
-	if (wspace < sk_stream_min_wspace(svsk->sk_sk))
-		return 0;
-	if (required * 2 > wspace)
-		return 0;
-
-	clear_bit(SOCK_NOSPACE, &svsk->sk_sock->flags);
-	return 1;
+	return 0;
 }
 
 static struct svc_xprt *svc_tcp_create(struct svc_serv *serv,
@@ -1054,7 +1090,7 @@ static void svc_tcp_init(struct svc_sock *svsk, struct svc_serv *serv)
 		dprintk("setting up TCP socket for reading\n");
 		sk->sk_state_change = svc_tcp_state_change;
 		sk->sk_data_ready = svc_tcp_data_ready;
-		sk->sk_write_space = svc_write_space;
+		sk->sk_write_space = svc_tcp_write_space;
 
 		svsk->sk_reclen = 0;
 		svsk->sk_tcplen = 0;
@@ -1148,9 +1184,19 @@ static struct svc_sock *svc_setup_socket(struct svc_serv *serv,
 	return svsk;
 }
 
-int svc_addsock(struct svc_serv *serv,
-		int fd,
-		char *name_return)
+/**
+ * svc_addsock - add a listener socket to an RPC service
+ * @serv: pointer to RPC service to which to add a new listener
+ * @fd: file descriptor of the new listener
+ * @name_return: pointer to buffer to fill in with name of listener
+ * @len: size of the buffer
+ *
+ * Fills in socket name and returns positive length of name if successful.
+ * Name is terminated with '\n'.  On error, returns a negative errno
+ * value.
+ */
+int svc_addsock(struct svc_serv *serv, const int fd, char *name_return,
+		const size_t len)
 {
 	int err = 0;
 	struct socket *so = sockfd_lookup(fd, &err);
@@ -1190,7 +1236,7 @@ int svc_addsock(struct svc_serv *serv,
 		sockfd_put(so);
 		return err;
 	}
-	return one_sock_name(name_return, svsk);
+	return svc_one_sock_name(svsk, name_return, len);
 }
 EXPORT_SYMBOL_GPL(svc_addsock);
 
@@ -1327,3 +1373,42 @@ static void svc_sock_free(struct svc_xprt *xprt)
 		sock_release(svsk->sk_sock);
 	kfree(svsk);
 }
+
+/*
+ * Create a svc_xprt.
+ *
+ * For internal use only (e.g. nfsv4.1 backchannel).
+ * Callers should typically use the xpo_create() method.
+ */
+struct svc_xprt *svc_sock_create(struct svc_serv *serv, int prot)
+{
+	struct svc_sock *svsk;
+	struct svc_xprt *xprt = NULL;
+
+	dprintk("svc: %s\n", __func__);
+	svsk = kzalloc(sizeof(*svsk), GFP_KERNEL);
+	if (!svsk)
+		goto out;
+
+	xprt = &svsk->sk_xprt;
+	if (prot == IPPROTO_TCP)
+		svc_xprt_init(&svc_tcp_class, xprt, serv);
+	else if (prot == IPPROTO_UDP)
+		svc_xprt_init(&svc_udp_class, xprt, serv);
+	else
+		BUG();
+out:
+	dprintk("svc: %s return %p\n", __func__, xprt);
+	return xprt;
+}
+EXPORT_SYMBOL_GPL(svc_sock_create);
+
+/*
+ * Destroy a svc_sock.
+ */
+void svc_sock_destroy(struct svc_xprt *xprt)
+{
+	if (xprt)
+		kfree(container_of(xprt, struct svc_sock, sk_xprt));
+}
+EXPORT_SYMBOL_GPL(svc_sock_destroy);
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 06ca058572f2..f412a852bc73 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -12,8 +12,9 @@
  *  -	Next, the caller puts together the RPC message, stuffs it into
  *	the request struct, and calls xprt_transmit().
  *  -	xprt_transmit sends the message and installs the caller on the
- *	transport's wait list. At the same time, it installs a timer that
- *	is run after the packet's timeout has expired.
+ *	transport's wait list. At the same time, if a reply is expected,
+ *	it installs a timer that is run after the packet's timeout has
+ *	expired.
  *  -	When a packet arrives, the data_ready handler walks the list of
  *	pending requests for that transport. If a matching XID is found, the
  *	caller is woken up, and the timer removed.
@@ -46,6 +47,8 @@
 #include <linux/sunrpc/clnt.h>
 #include <linux/sunrpc/metrics.h>
 
+#include "sunrpc.h"
+
 /*
  * Local variables
  */
@@ -192,8 +195,8 @@ EXPORT_SYMBOL_GPL(xprt_load_transport);
  */
 int xprt_reserve_xprt(struct rpc_task *task)
 {
-	struct rpc_xprt	*xprt = task->tk_xprt;
 	struct rpc_rqst *req = task->tk_rqstp;
+	struct rpc_xprt	*xprt = req->rq_xprt;
 
 	if (test_and_set_bit(XPRT_LOCKED, &xprt->state)) {
 		if (task == xprt->snd_task)
@@ -803,9 +806,10 @@ void xprt_complete_rqst(struct rpc_task *task, int copied)
 
 	list_del_init(&req->rq_list);
 	req->rq_private_buf.len = copied;
-	/* Ensure all writes are done before we update req->rq_received */
+	/* Ensure all writes are done before we update */
+	/* req->rq_reply_bytes_recvd */
 	smp_wmb();
-	req->rq_received = copied;
+	req->rq_reply_bytes_recvd = copied;
 	rpc_wake_up_queued_task(&xprt->pending, task);
 }
 EXPORT_SYMBOL_GPL(xprt_complete_rqst);
@@ -820,7 +824,7 @@ static void xprt_timer(struct rpc_task *task)
 	dprintk("RPC: %5u xprt_timer\n", task->tk_pid);
 
 	spin_lock_bh(&xprt->transport_lock);
-	if (!req->rq_received) {
+	if (!req->rq_reply_bytes_recvd) {
 		if (xprt->ops->timer)
 			xprt->ops->timer(task);
 	} else
@@ -842,8 +846,8 @@ int xprt_prepare_transmit(struct rpc_task *task)
 	dprintk("RPC: %5u xprt_prepare_transmit\n", task->tk_pid);
 
 	spin_lock_bh(&xprt->transport_lock);
-	if (req->rq_received && !req->rq_bytes_sent) {
-		err = req->rq_received;
+	if (req->rq_reply_bytes_recvd && !req->rq_bytes_sent) {
+		err = req->rq_reply_bytes_recvd;
 		goto out_unlock;
 	}
 	if (!xprt->ops->reserve_xprt(task))
@@ -855,7 +859,7 @@ out_unlock:
 
 void xprt_end_transmit(struct rpc_task *task)
 {
-	xprt_release_write(task->tk_xprt, task);
+	xprt_release_write(task->tk_rqstp->rq_xprt, task);
 }
 
 /**
@@ -872,8 +876,11 @@ void xprt_transmit(struct rpc_task *task)
 
 	dprintk("RPC: %5u xprt_transmit(%u)\n", task->tk_pid, req->rq_slen);
 
-	if (!req->rq_received) {
-		if (list_empty(&req->rq_list)) {
+	if (!req->rq_reply_bytes_recvd) {
+		if (list_empty(&req->rq_list) && rpc_reply_expected(task)) {
+			/*
+			 * Add to the list only if we're expecting a reply
+			 */
 			spin_lock_bh(&xprt->transport_lock);
 			/* Update the softirq receive buffer */
 			memcpy(&req->rq_private_buf, &req->rq_rcv_buf,
@@ -908,8 +915,13 @@ void xprt_transmit(struct rpc_task *task)
 	/* Don't race with disconnect */
 	if (!xprt_connected(xprt))
 		task->tk_status = -ENOTCONN;
-	else if (!req->rq_received)
+	else if (!req->rq_reply_bytes_recvd && rpc_reply_expected(task)) {
+		/*
+		 * Sleep on the pending queue since
+		 * we're expecting a reply.
+		 */
 		rpc_sleep_on(&xprt->pending, task, xprt_timer);
+	}
 	spin_unlock_bh(&xprt->transport_lock);
 }
 
@@ -982,11 +994,17 @@ static void xprt_request_init(struct rpc_task *task, struct rpc_xprt *xprt)
  */
 void xprt_release(struct rpc_task *task)
 {
-	struct rpc_xprt	*xprt = task->tk_xprt;
+	struct rpc_xprt	*xprt;
 	struct rpc_rqst	*req;
+	int is_bc_request;
 
 	if (!(req = task->tk_rqstp))
 		return;
+
+	/* Preallocated backchannel request? */
+	is_bc_request = bc_prealloc(req);
+
+	xprt = req->rq_xprt;
 	rpc_count_iostats(task);
 	spin_lock_bh(&xprt->transport_lock);
 	xprt->ops->release_xprt(xprt, task);
@@ -999,10 +1017,19 @@ void xprt_release(struct rpc_task *task)
 		mod_timer(&xprt->timer,
 				xprt->last_used + xprt->idle_timeout);
 	spin_unlock_bh(&xprt->transport_lock);
-	xprt->ops->buf_free(req->rq_buffer);
+	if (!bc_prealloc(req))
+		xprt->ops->buf_free(req->rq_buffer);
 	task->tk_rqstp = NULL;
 	if (req->rq_release_snd_buf)
 		req->rq_release_snd_buf(req);
+
+	/*
+	 * Early exit if this is a backchannel preallocated request.
+	 * There is no need to have it added to the RPC slot list.
+	 */
+	if (is_bc_request)
+		return;
+
 	memset(req, 0, sizeof(*req));	/* mark unused */
 
 	dprintk("RPC: %5u release request %p\n", task->tk_pid, req);
@@ -1049,6 +1076,11 @@ found:
 
 	INIT_LIST_HEAD(&xprt->free);
 	INIT_LIST_HEAD(&xprt->recv);
+#if defined(CONFIG_NFS_V4_1)
+	spin_lock_init(&xprt->bc_pa_lock);
+	INIT_LIST_HEAD(&xprt->bc_pa_list);
+#endif /* CONFIG_NFS_V4_1 */
+
 	INIT_WORK(&xprt->task_cleanup, xprt_autoclose);
 	setup_timer(&xprt->timer, xprt_init_autodisconnect,
 			(unsigned long)xprt);
diff --git a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
index 42a6f9f20285..9e884383134f 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
@@ -397,14 +397,14 @@ static int rdma_read_xdr(struct svcxprt_rdma *xprt,
 	if (!ch)
 		return 0;
 
-	/* Allocate temporary reply and chunk maps */
-	rpl_map = svc_rdma_get_req_map();
-	chl_map = svc_rdma_get_req_map();
-
 	svc_rdma_rcl_chunk_counts(ch, &ch_count, &byte_count);
 	if (ch_count > RPCSVC_MAXPAGES)
 		return -EINVAL;
 
+	/* Allocate temporary reply and chunk maps */
+	rpl_map = svc_rdma_get_req_map();
+	chl_map = svc_rdma_get_req_map();
+
 	if (!xprt->sc_frmr_pg_list_len)
 		sge_count = map_read_chunks(xprt, rqstp, hdr_ctxt, rmsgp,
 					    rpl_map, chl_map, ch_count,
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index e18596146013..83c73c4d017a 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -34,6 +34,9 @@
 #include <linux/sunrpc/sched.h>
 #include <linux/sunrpc/xprtsock.h>
 #include <linux/file.h>
+#ifdef CONFIG_NFS_V4_1
+#include <linux/sunrpc/bc_xprt.h>
+#endif
 
 #include <net/sock.h>
 #include <net/checksum.h>
@@ -270,6 +273,13 @@ struct sock_xprt {
 #define TCP_RCV_COPY_FRAGHDR	(1UL << 1)
 #define TCP_RCV_COPY_XID	(1UL << 2)
 #define TCP_RCV_COPY_DATA	(1UL << 3)
+#define TCP_RCV_READ_CALLDIR	(1UL << 4)
+#define TCP_RCV_COPY_CALLDIR	(1UL << 5)
+
+/*
+ * TCP RPC flags
+ */
+#define TCP_RPC_REPLY		(1UL << 6)
 
 static inline struct sockaddr *xs_addr(struct rpc_xprt *xprt)
 {
@@ -918,7 +928,7 @@ static void xs_udp_data_ready(struct sock *sk, int len)
 	UDPX_INC_STATS_BH(sk, UDP_MIB_INDATAGRAMS);
 
 	/* Something worked... */
-	dst_confirm(skb->dst);
+	dst_confirm(skb_dst(skb));
 
 	xprt_adjust_cwnd(task, copied);
 	xprt_update_rtt(task);
@@ -956,7 +966,7 @@ static inline void xs_tcp_read_fraghdr(struct rpc_xprt *xprt, struct xdr_skb_rea
 	transport->tcp_offset = 0;
 
 	/* Sanity check of the record length */
-	if (unlikely(transport->tcp_reclen < 4)) {
+	if (unlikely(transport->tcp_reclen < 8)) {
 		dprintk("RPC:       invalid TCP record fragment length\n");
 		xprt_force_disconnect(xprt);
 		return;
@@ -991,33 +1001,77 @@ static inline void xs_tcp_read_xid(struct sock_xprt *transport, struct xdr_skb_r
 	if (used != len)
 		return;
 	transport->tcp_flags &= ~TCP_RCV_COPY_XID;
-	transport->tcp_flags |= TCP_RCV_COPY_DATA;
+	transport->tcp_flags |= TCP_RCV_READ_CALLDIR;
 	transport->tcp_copied = 4;
-	dprintk("RPC:       reading reply for XID %08x\n",
+	dprintk("RPC:       reading %s XID %08x\n",
+			(transport->tcp_flags & TCP_RPC_REPLY) ? "reply for"
+							      : "request with",
 			ntohl(transport->tcp_xid));
 	xs_tcp_check_fraghdr(transport);
 }
 
-static inline void xs_tcp_read_request(struct rpc_xprt *xprt, struct xdr_skb_reader *desc)
+static inline void xs_tcp_read_calldir(struct sock_xprt *transport,
+				       struct xdr_skb_reader *desc)
 {
-	struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
-	struct rpc_rqst *req;
+	size_t len, used;
+	u32 offset;
+	__be32	calldir;
+
+	/*
+	 * We want transport->tcp_offset to be 8 at the end of this routine
+	 * (4 bytes for the xid and 4 bytes for the call/reply flag).
+	 * When this function is called for the first time,
+	 * transport->tcp_offset is 4 (after having already read the xid).
+	 */
+	offset = transport->tcp_offset - sizeof(transport->tcp_xid);
+	len = sizeof(calldir) - offset;
+	dprintk("RPC:       reading CALL/REPLY flag (%Zu bytes)\n", len);
+	used = xdr_skb_read_bits(desc, &calldir, len);
+	transport->tcp_offset += used;
+	if (used != len)
+		return;
+	transport->tcp_flags &= ~TCP_RCV_READ_CALLDIR;
+	transport->tcp_flags |= TCP_RCV_COPY_CALLDIR;
+	transport->tcp_flags |= TCP_RCV_COPY_DATA;
+	/*
+	 * We don't yet have the XDR buffer, so we will write the calldir
+	 * out after we get the buffer from the 'struct rpc_rqst'
+	 */
+	if (ntohl(calldir) == RPC_REPLY)
+		transport->tcp_flags |= TCP_RPC_REPLY;
+	else
+		transport->tcp_flags &= ~TCP_RPC_REPLY;
+	dprintk("RPC:       reading %s CALL/REPLY flag %08x\n",
+			(transport->tcp_flags & TCP_RPC_REPLY) ?
+				"reply for" : "request with", calldir);
+	xs_tcp_check_fraghdr(transport);
+}
+
+static inline void xs_tcp_read_common(struct rpc_xprt *xprt,
+				     struct xdr_skb_reader *desc,
+				     struct rpc_rqst *req)
+{
+	struct sock_xprt *transport =
+				container_of(xprt, struct sock_xprt, xprt);
 	struct xdr_buf *rcvbuf;
 	size_t len;
 	ssize_t r;
 
-	/* Find and lock the request corresponding to this xid */
-	spin_lock(&xprt->transport_lock);
-	req = xprt_lookup_rqst(xprt, transport->tcp_xid);
-	if (!req) {
-		transport->tcp_flags &= ~TCP_RCV_COPY_DATA;
-		dprintk("RPC:       XID %08x request not found!\n",
-				ntohl(transport->tcp_xid));
-		spin_unlock(&xprt->transport_lock);
-		return;
+	rcvbuf = &req->rq_private_buf;
+
+	if (transport->tcp_flags & TCP_RCV_COPY_CALLDIR) {
+		/*
+		 * Save the RPC direction in the XDR buffer
+		 */
+		__be32	calldir = transport->tcp_flags & TCP_RPC_REPLY ?
+					htonl(RPC_REPLY) : 0;
+
+		memcpy(rcvbuf->head[0].iov_base + transport->tcp_copied,
+			&calldir, sizeof(calldir));
+		transport->tcp_copied += sizeof(calldir);
+		transport->tcp_flags &= ~TCP_RCV_COPY_CALLDIR;
 	}
 
-	rcvbuf = &req->rq_private_buf;
 	len = desc->count;
 	if (len > transport->tcp_reclen - transport->tcp_offset) {
 		struct xdr_skb_reader my_desc;
@@ -1054,7 +1108,7 @@ static inline void xs_tcp_read_request(struct rpc_xprt *xprt, struct xdr_skb_rea
 				"tcp_offset = %u, tcp_reclen = %u\n",
 				xprt, transport->tcp_copied,
 				transport->tcp_offset, transport->tcp_reclen);
-		goto out;
+		return;
 	}
 
 	dprintk("RPC:       XID %08x read %Zd bytes\n",
@@ -1070,11 +1124,125 @@ static inline void xs_tcp_read_request(struct rpc_xprt *xprt, struct xdr_skb_rea
 			transport->tcp_flags &= ~TCP_RCV_COPY_DATA;
 	}
 
-out:
+	return;
+}
+
+/*
+ * Finds the request corresponding to the RPC xid and invokes the common
+ * tcp read code to read the data.
+ */
+static inline int xs_tcp_read_reply(struct rpc_xprt *xprt,
+				    struct xdr_skb_reader *desc)
+{
+	struct sock_xprt *transport =
+				container_of(xprt, struct sock_xprt, xprt);
+	struct rpc_rqst *req;
+
+	dprintk("RPC:       read reply XID %08x\n", ntohl(transport->tcp_xid));
+
+	/* Find and lock the request corresponding to this xid */
+	spin_lock(&xprt->transport_lock);
+	req = xprt_lookup_rqst(xprt, transport->tcp_xid);
+	if (!req) {
+		dprintk("RPC:       XID %08x request not found!\n",
+				ntohl(transport->tcp_xid));
+		spin_unlock(&xprt->transport_lock);
+		return -1;
+	}
+
+	xs_tcp_read_common(xprt, desc, req);
+
 	if (!(transport->tcp_flags & TCP_RCV_COPY_DATA))
 		xprt_complete_rqst(req->rq_task, transport->tcp_copied);
+
 	spin_unlock(&xprt->transport_lock);
-	xs_tcp_check_fraghdr(transport);
+	return 0;
+}
+
+#if defined(CONFIG_NFS_V4_1)
+/*
+ * Obtains an rpc_rqst previously allocated and invokes the common
+ * tcp read code to read the data.  The result is placed in the callback
+ * queue.
+ * If we're unable to obtain the rpc_rqst we schedule the closing of the
+ * connection and return -1.
+ */
+static inline int xs_tcp_read_callback(struct rpc_xprt *xprt,
+				       struct xdr_skb_reader *desc)
+{
+	struct sock_xprt *transport =
+				container_of(xprt, struct sock_xprt, xprt);
+	struct rpc_rqst *req;
+
+	req = xprt_alloc_bc_request(xprt);
+	if (req == NULL) {
+		printk(KERN_WARNING "Callback slot table overflowed\n");
+		xprt_force_disconnect(xprt);
+		return -1;
+	}
+
+	req->rq_xid = transport->tcp_xid;
+	dprintk("RPC:       read callback  XID %08x\n", ntohl(req->rq_xid));
+	xs_tcp_read_common(xprt, desc, req);
+
+	if (!(transport->tcp_flags & TCP_RCV_COPY_DATA)) {
+		struct svc_serv *bc_serv = xprt->bc_serv;
+
+		/*
+		 * Add callback request to callback list.  The callback
+		 * service sleeps on the sv_cb_waitq waiting for new
+		 * requests.  Wake it up after adding enqueing the
+		 * request.
+		 */
+		dprintk("RPC:       add callback request to list\n");
+		spin_lock(&bc_serv->sv_cb_lock);
+		list_add(&req->rq_bc_list, &bc_serv->sv_cb_list);
+		spin_unlock(&bc_serv->sv_cb_lock);
+		wake_up(&bc_serv->sv_cb_waitq);
+	}
+
+	req->rq_private_buf.len = transport->tcp_copied;
+
+	return 0;
+}
+
+static inline int _xs_tcp_read_data(struct rpc_xprt *xprt,
+					struct xdr_skb_reader *desc)
+{
+	struct sock_xprt *transport =
+				container_of(xprt, struct sock_xprt, xprt);
+
+	return (transport->tcp_flags & TCP_RPC_REPLY) ?
+		xs_tcp_read_reply(xprt, desc) :
+		xs_tcp_read_callback(xprt, desc);
+}
+#else
+static inline int _xs_tcp_read_data(struct rpc_xprt *xprt,
+					struct xdr_skb_reader *desc)
+{
+	return xs_tcp_read_reply(xprt, desc);
+}
+#endif /* CONFIG_NFS_V4_1 */
+
+/*
+ * Read data off the transport.  This can be either an RPC_CALL or an
+ * RPC_REPLY.  Relay the processing to helper functions.
+ */
+static void xs_tcp_read_data(struct rpc_xprt *xprt,
+				    struct xdr_skb_reader *desc)
+{
+	struct sock_xprt *transport =
+				container_of(xprt, struct sock_xprt, xprt);
+
+	if (_xs_tcp_read_data(xprt, desc) == 0)
+		xs_tcp_check_fraghdr(transport);
+	else {
+		/*
+		 * The transport_lock protects the request handling.
+		 * There's no need to hold it to update the tcp_flags.
+		 */
+		transport->tcp_flags &= ~TCP_RCV_COPY_DATA;
+	}
 }
 
 static inline void xs_tcp_read_discard(struct sock_xprt *transport, struct xdr_skb_reader *desc)
@@ -1114,9 +1282,14 @@ static int xs_tcp_data_recv(read_descriptor_t *rd_desc, struct sk_buff *skb, uns
 			xs_tcp_read_xid(transport, &desc);
 			continue;
 		}
+		/* Read in the call/reply flag */
+		if (transport->tcp_flags & TCP_RCV_READ_CALLDIR) {
+			xs_tcp_read_calldir(transport, &desc);
+			continue;
+		}
 		/* Read in the request data */
 		if (transport->tcp_flags & TCP_RCV_COPY_DATA) {
-			xs_tcp_read_request(xprt, &desc);
+			xs_tcp_read_data(xprt, &desc);
 			continue;
 		}
 		/* Skip over any trailing bytes on short reads */
@@ -1792,6 +1965,7 @@ static void xs_tcp_setup_socket(struct rpc_xprt *xprt,
 		 */
 		set_bit(XPRT_CONNECTION_CLOSE, &xprt->state);
 		xprt_force_disconnect(xprt);
+		break;
 	case -ECONNREFUSED:
 	case -ECONNRESET:
 	case -ENETUNREACH:
@@ -2010,6 +2184,9 @@ static struct rpc_xprt_ops xs_tcp_ops = {
 	.buf_free		= rpc_free,
 	.send_request		= xs_tcp_send_request,
 	.set_retrans_timeout	= xprt_set_retrans_timeout_def,
+#if defined(CONFIG_NFS_V4_1)
+	.release_request	= bc_release_request,
+#endif /* CONFIG_NFS_V4_1 */
 	.close			= xs_tcp_close,
 	.destroy		= xs_destroy,
 	.print_stats		= xs_tcp_print_stats,
diff --git a/net/tipc/eth_media.c b/net/tipc/eth_media.c
index f72ba774c246..524ba5696d4d 100644
--- a/net/tipc/eth_media.c
+++ b/net/tipc/eth_media.c
@@ -167,7 +167,7 @@ static int enable_bearer(struct tipc_bearer *tb_ptr)
 	tb_ptr->mtu = dev->mtu;
 	tb_ptr->blocked = 0;
 	tb_ptr->addr.type = htonl(TIPC_MEDIA_TYPE_ETH);
-	memcpy(&tb_ptr->addr.dev_addr, &dev->dev_addr, ETH_ALEN);
+	memcpy(&tb_ptr->addr.dev_addr, dev->dev_addr, ETH_ALEN);
 	return 0;
 }
 
diff --git a/net/tipc/netlink.c b/net/tipc/netlink.c
index c387217bb230..3c57005e44d1 100644
--- a/net/tipc/netlink.c
+++ b/net/tipc/netlink.c
@@ -68,7 +68,7 @@ static int handle_cmd(struct sk_buff *skb, struct genl_info *info)
 	return 0;
 }
 
-static struct genl_family family = {
+static struct genl_family tipc_genl_family = {
 	.id		= GENL_ID_GENERATE,
 	.name		= TIPC_GENL_NAME,
 	.version	= TIPC_GENL_VERSION,
@@ -76,39 +76,33 @@ static struct genl_family family = {
 	.maxattr	= 0,
 };
 
-static struct genl_ops ops = {
+static struct genl_ops tipc_genl_ops = {
 	.cmd		= TIPC_GENL_CMD,
 	.doit		= handle_cmd,
 };
 
-static int family_registered = 0;
+static int tipc_genl_family_registered;
 
 int tipc_netlink_start(void)
 {
+	int res;
 
+	res = genl_register_family_with_ops(&tipc_genl_family,
+		&tipc_genl_ops, 1);
+	if (res) {
+		err("Failed to register netlink interface\n");
+		return res;
+	}
 
-	if (genl_register_family(&family))
-		goto err;
-
-	family_registered = 1;
-
-	if (genl_register_ops(&family, &ops))
-		goto err_unregister;
-
+	tipc_genl_family_registered = 1;
 	return 0;
-
- err_unregister:
-	genl_unregister_family(&family);
-	family_registered = 0;
- err:
-	err("Failed to register netlink interface\n");
-	return -EFAULT;
 }
 
 void tipc_netlink_stop(void)
 {
-	if (family_registered) {
-		genl_unregister_family(&family);
-		family_registered = 0;
-	}
+	if (!tipc_genl_family_registered)
+		return;
+
+	genl_unregister_family(&tipc_genl_family);
+	tipc_genl_family_registered = 0;
 }
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 9dcc6e7f96ec..36d4e44d6233 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -1946,7 +1946,7 @@ static int unix_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 
 	switch (cmd) {
 	case SIOCOUTQ:
-		amount = atomic_read(&sk->sk_wmem_alloc);
+		amount = sk_wmem_alloc_get(sk);
 		err = put_user(amount, (int __user *)arg);
 		break;
 	case SIOCINQ:
diff --git a/net/wimax/Kconfig b/net/wimax/Kconfig
index 1b46747a5f5a..e4d97ab476d5 100644
--- a/net/wimax/Kconfig
+++ b/net/wimax/Kconfig
@@ -1,23 +1,10 @@
 #
 # WiMAX LAN device configuration
 #
-# Note the ugly 'depends on' on WIMAX: that disallows RFKILL to be a
-# module if WIMAX is to be linked in. The WiMAX code is done in such a
-# way that it doesn't require and explicit dependency on RFKILL in
-# case an embedded system wants to rip it out.
-#
-# As well, enablement of the RFKILL code means we need the INPUT layer
-# support to inject events coming from hw rfkill switches. That
-# dependency could be killed if input.h provided appropriate means to
-# work when input is disabled.
-
-comment "WiMAX Wireless Broadband support requires CONFIG_INPUT enabled"
-	depends on INPUT = n && RFKILL != n
 
 menuconfig WIMAX
 	tristate "WiMAX Wireless Broadband support"
-	depends on (y && RFKILL != m) || m
-	depends on (INPUT && RFKILL != n) || RFKILL = n
+	depends on RFKILL || !RFKILL
 	help
 
 	  Select to configure support for devices that provide
diff --git a/net/wimax/Makefile b/net/wimax/Makefile
index 5b80b941c2c9..8f1510d0cc2b 100644
--- a/net/wimax/Makefile
+++ b/net/wimax/Makefile
@@ -6,6 +6,7 @@ wimax-y :=		\
 	op-msg.o	\
 	op-reset.o	\
 	op-rfkill.o	\
+	op-state-get.o	\
 	stack.o
 
 wimax-$(CONFIG_DEBUG_FS) += debugfs.o
diff --git a/net/wimax/debug-levels.h b/net/wimax/debug-levels.h
index 1c29123a3aa9..0975adba6b71 100644
--- a/net/wimax/debug-levels.h
+++ b/net/wimax/debug-levels.h
@@ -36,6 +36,7 @@ enum d_module {
 	D_SUBMODULE_DECLARE(op_msg),
 	D_SUBMODULE_DECLARE(op_reset),
 	D_SUBMODULE_DECLARE(op_rfkill),
+	D_SUBMODULE_DECLARE(op_state_get),
 	D_SUBMODULE_DECLARE(stack),
 };
 
diff --git a/net/wimax/debugfs.c b/net/wimax/debugfs.c
index 94d216a46407..6c9bedb7431e 100644
--- a/net/wimax/debugfs.c
+++ b/net/wimax/debugfs.c
@@ -61,6 +61,7 @@ int wimax_debugfs_add(struct wimax_dev *wimax_dev)
 	__debugfs_register("wimax_dl_", op_msg, dentry);
 	__debugfs_register("wimax_dl_", op_reset, dentry);
 	__debugfs_register("wimax_dl_", op_rfkill, dentry);
+	__debugfs_register("wimax_dl_", op_state_get, dentry);
 	__debugfs_register("wimax_dl_", stack, dentry);
 	result = 0;
 out:
diff --git a/net/wimax/op-msg.c b/net/wimax/op-msg.c
index 9ad4d893a566..d631a17186bc 100644
--- a/net/wimax/op-msg.c
+++ b/net/wimax/op-msg.c
@@ -108,6 +108,12 @@
  * Don't use skb_push()/skb_pull()/skb_reserve() on the skb, as
  * wimax_msg_send() depends on skb->data being placed at the
  * beginning of the user message.
+ *
+ * Unlike other WiMAX stack calls, this call can be used way early,
+ * even before wimax_dev_add() is called, as long as the
+ * wimax_dev->net_dev pointer is set to point to a proper
+ * net_dev. This is so that drivers can use it early in case they need
+ * to send stuff around or communicate with user space.
  */
 struct sk_buff *wimax_msg_alloc(struct wimax_dev *wimax_dev,
 				const char *pipe_name,
@@ -115,7 +121,7 @@ struct sk_buff *wimax_msg_alloc(struct wimax_dev *wimax_dev,
 				gfp_t gfp_flags)
 {
 	int result;
-	struct device *dev = wimax_dev->net_dev->dev.parent;
+	struct device *dev = wimax_dev_to_dev(wimax_dev);
 	size_t msg_size;
 	void *genl_msg;
 	struct sk_buff *skb;
@@ -161,7 +167,6 @@ error_genlmsg_put:
 error_new:
 	nlmsg_free(skb);
 	return ERR_PTR(result);
-
 }
 EXPORT_SYMBOL_GPL(wimax_msg_alloc);
 
@@ -256,10 +261,16 @@ EXPORT_SYMBOL_GPL(wimax_msg_len);
  * Don't use skb_push()/skb_pull()/skb_reserve() on the skb, as
  * wimax_msg_send() depends on skb->data being placed at the
  * beginning of the user message.
+ *
+ * Unlike other WiMAX stack calls, this call can be used way early,
+ * even before wimax_dev_add() is called, as long as the
+ * wimax_dev->net_dev pointer is set to point to a proper
+ * net_dev. This is so that drivers can use it early in case they need
+ * to send stuff around or communicate with user space.
  */
 int wimax_msg_send(struct wimax_dev *wimax_dev, struct sk_buff *skb)
 {
-	struct device *dev = wimax_dev->net_dev->dev.parent;
+	struct device *dev = wimax_dev_to_dev(wimax_dev);
 	void *msg = skb->data;
 	size_t size = skb->len;
 	might_sleep();
diff --git a/net/wimax/op-rfkill.c b/net/wimax/op-rfkill.c
index 2b75aee04217..70ef4df863b9 100644
--- a/net/wimax/op-rfkill.c
+++ b/net/wimax/op-rfkill.c
@@ -29,8 +29,8 @@
  * A non-polled generic rfkill device is embedded into the WiMAX
  * subsystem's representation of a device.
  *
- * FIXME: Need polled support? use a timer or add the implementation
- *     to the stack.
+ * FIXME: Need polled support? Let drivers provide a poll routine
+ *	  and hand it to rfkill ops then?
  *
  * All device drivers have to do is after wimax_dev_init(), call
  * wimax_report_rfkill_hw() and wimax_report_rfkill_sw() to update
@@ -43,7 +43,7 @@
  *   wimax_rfkill()             Kernel calling wimax_rfkill()
  *     __wimax_rf_toggle_radio()
  *
- * wimax_rfkill_toggle_radio()  RF-Kill subsytem calling
+ * wimax_rfkill_set_radio_block()  RF-Kill subsytem calling
  *   __wimax_rf_toggle_radio()
  *
  * __wimax_rf_toggle_radio()
@@ -65,15 +65,11 @@
 #include <linux/wimax.h>
 #include <linux/security.h>
 #include <linux/rfkill.h>
-#include <linux/input.h>
 #include "wimax-internal.h"
 
 #define D_SUBMODULE op_rfkill
 #include "debug-levels.h"
 
-#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
-
-
 /**
  * wimax_report_rfkill_hw - Reports changes in the hardware RF switch
  *
@@ -99,7 +95,6 @@ void wimax_report_rfkill_hw(struct wimax_dev *wimax_dev,
 	int result;
 	struct device *dev = wimax_dev_to_dev(wimax_dev);
 	enum wimax_st wimax_state;
-	enum rfkill_state rfkill_state;
 
 	d_fnstart(3, dev, "(wimax_dev %p state %u)\n", wimax_dev, state);
 	BUG_ON(state == WIMAX_RF_QUERY);
@@ -112,16 +107,16 @@ void wimax_report_rfkill_hw(struct wimax_dev *wimax_dev,
 
 	if (state != wimax_dev->rf_hw) {
 		wimax_dev->rf_hw = state;
-		rfkill_state = state == WIMAX_RF_ON ?
-			RFKILL_STATE_OFF : RFKILL_STATE_ON;
 		if (wimax_dev->rf_hw == WIMAX_RF_ON
 		    && wimax_dev->rf_sw == WIMAX_RF_ON)
 			wimax_state = WIMAX_ST_READY;
 		else
 			wimax_state = WIMAX_ST_RADIO_OFF;
+
+		result = rfkill_set_hw_state(wimax_dev->rfkill,
+					     state == WIMAX_RF_OFF);
+
 		__wimax_state_change(wimax_dev, wimax_state);
-		input_report_key(wimax_dev->rfkill_input, KEY_WIMAX,
-				 rfkill_state);
 	}
 error_not_ready:
 	mutex_unlock(&wimax_dev->mutex);
@@ -174,6 +169,7 @@ void wimax_report_rfkill_sw(struct wimax_dev *wimax_dev,
 		else
 			wimax_state = WIMAX_ST_RADIO_OFF;
 		__wimax_state_change(wimax_dev, wimax_state);
+		rfkill_set_sw_state(wimax_dev->rfkill, state == WIMAX_RF_OFF);
 	}
 error_not_ready:
 	mutex_unlock(&wimax_dev->mutex);
@@ -249,36 +245,31 @@ out_no_change:
  *
  * NOTE: This call will block until the operation is completed.
  */
-static
-int wimax_rfkill_toggle_radio(void *data, enum rfkill_state state)
+static int wimax_rfkill_set_radio_block(void *data, bool blocked)
 {
 	int result;
 	struct wimax_dev *wimax_dev = data;
 	struct device *dev = wimax_dev_to_dev(wimax_dev);
 	enum wimax_rf_state rf_state;
 
-	d_fnstart(3, dev, "(wimax_dev %p state %u)\n", wimax_dev, state);
-	switch (state) {
-	case RFKILL_STATE_ON:
+	d_fnstart(3, dev, "(wimax_dev %p blocked %u)\n", wimax_dev, blocked);
+	rf_state = WIMAX_RF_ON;
+	if (blocked)
 		rf_state = WIMAX_RF_OFF;
-		break;
-	case RFKILL_STATE_OFF:
-		rf_state = WIMAX_RF_ON;
-		break;
-	default:
-		BUG();
-	}
 	mutex_lock(&wimax_dev->mutex);
 	if (wimax_dev->state <= __WIMAX_ST_QUIESCING)
-		result = 0;	/* just pretend it didn't happen */
+		result = 0;
 	else
 		result = __wimax_rf_toggle_radio(wimax_dev, rf_state);
 	mutex_unlock(&wimax_dev->mutex);
-	d_fnend(3, dev, "(wimax_dev %p state %u) = %d\n",
-		wimax_dev, state, result);
+	d_fnend(3, dev, "(wimax_dev %p blocked %u) = %d\n",
+		wimax_dev, blocked, result);
 	return result;
 }
 
+static const struct rfkill_ops wimax_rfkill_ops = {
+	.set_block = wimax_rfkill_set_radio_block,
+};
 
 /**
  * wimax_rfkill - Set the software RF switch state for a WiMAX device
@@ -322,6 +313,7 @@ int wimax_rfkill(struct wimax_dev *wimax_dev, enum wimax_rf_state state)
 		result = __wimax_rf_toggle_radio(wimax_dev, state);
 		if (result < 0)
 			goto error;
+		rfkill_set_sw_state(wimax_dev->rfkill, state == WIMAX_RF_OFF);
 		break;
 	case WIMAX_RF_QUERY:
 		break;
@@ -349,41 +341,20 @@ int wimax_rfkill_add(struct wimax_dev *wimax_dev)
 {
 	int result;
 	struct rfkill *rfkill;
-	struct input_dev *input_dev;
 	struct device *dev = wimax_dev_to_dev(wimax_dev);
 
 	d_fnstart(3, dev, "(wimax_dev %p)\n", wimax_dev);
 	/* Initialize RF Kill */
 	result = -ENOMEM;
-	rfkill = rfkill_allocate(dev, RFKILL_TYPE_WIMAX);
+	rfkill = rfkill_alloc(wimax_dev->name, dev, RFKILL_TYPE_WIMAX,
+			      &wimax_rfkill_ops, wimax_dev);
 	if (rfkill == NULL)
 		goto error_rfkill_allocate;
+
+	d_printf(1, dev, "rfkill %p\n", rfkill);
+
 	wimax_dev->rfkill = rfkill;
 
-	rfkill->name = wimax_dev->name;
-	rfkill->state = RFKILL_STATE_OFF;
-	rfkill->data = wimax_dev;
-	rfkill->toggle_radio = wimax_rfkill_toggle_radio;
-	rfkill->user_claim_unsupported = 1;
-
-	/* Initialize the input device for the hw key */
-	input_dev = input_allocate_device();
-	if (input_dev == NULL)
-		goto error_input_allocate;
-	wimax_dev->rfkill_input = input_dev;
-	d_printf(1, dev, "rfkill %p input %p\n", rfkill, input_dev);
-
-	input_dev->name = wimax_dev->name;
-	/* FIXME: get a real device bus ID and stuff? do we care? */
-	input_dev->id.bustype = BUS_HOST;
-	input_dev->id.vendor = 0xffff;
-	input_dev->evbit[0] = BIT(EV_KEY);
-	set_bit(KEY_WIMAX, input_dev->keybit);
-
-	/* Register both */
-	result = input_register_device(wimax_dev->rfkill_input);
-	if (result < 0)
-		goto error_input_register;
 	result = rfkill_register(wimax_dev->rfkill);
 	if (result < 0)
 		goto error_rfkill_register;
@@ -395,17 +366,8 @@ int wimax_rfkill_add(struct wimax_dev *wimax_dev)
 	d_fnend(3, dev, "(wimax_dev %p) = 0\n", wimax_dev);
 	return 0;
 
-	/* if rfkill_register() suceeds, can't use rfkill_free() any
-	 * more, only rfkill_unregister() [it owns the refcount]; with
-	 * the input device we have the same issue--hence the if. */
 error_rfkill_register:
-	input_unregister_device(wimax_dev->rfkill_input);
-	wimax_dev->rfkill_input = NULL;
-error_input_register:
-	if (wimax_dev->rfkill_input)
-		input_free_device(wimax_dev->rfkill_input);
-error_input_allocate:
-	rfkill_free(wimax_dev->rfkill);
+	rfkill_destroy(wimax_dev->rfkill);
 error_rfkill_allocate:
 	d_fnend(3, dev, "(wimax_dev %p) = %d\n", wimax_dev, result);
 	return result;
@@ -424,45 +386,12 @@ void wimax_rfkill_rm(struct wimax_dev *wimax_dev)
 {
 	struct device *dev = wimax_dev_to_dev(wimax_dev);
 	d_fnstart(3, dev, "(wimax_dev %p)\n", wimax_dev);
-	rfkill_unregister(wimax_dev->rfkill);	/* frees */
-	input_unregister_device(wimax_dev->rfkill_input);
+	rfkill_unregister(wimax_dev->rfkill);
+	rfkill_destroy(wimax_dev->rfkill);
 	d_fnend(3, dev, "(wimax_dev %p)\n", wimax_dev);
 }
 
 
-#else /* #ifdef CONFIG_RFKILL */
-
-void wimax_report_rfkill_hw(struct wimax_dev *wimax_dev,
-			    enum wimax_rf_state state)
-{
-}
-EXPORT_SYMBOL_GPL(wimax_report_rfkill_hw);
-
-void wimax_report_rfkill_sw(struct wimax_dev *wimax_dev,
-			    enum wimax_rf_state state)
-{
-}
-EXPORT_SYMBOL_GPL(wimax_report_rfkill_sw);
-
-int wimax_rfkill(struct wimax_dev *wimax_dev,
-		 enum wimax_rf_state state)
-{
-	return WIMAX_RF_ON << 1 | WIMAX_RF_ON;
-}
-EXPORT_SYMBOL_GPL(wimax_rfkill);
-
-int wimax_rfkill_add(struct wimax_dev *wimax_dev)
-{
-	return 0;
-}
-
-void wimax_rfkill_rm(struct wimax_dev *wimax_dev)
-{
-}
-
-#endif /* #ifdef CONFIG_RFKILL */
-
-
 /*
  * Exporting to user space over generic netlink
  *
diff --git a/net/wimax/op-state-get.c b/net/wimax/op-state-get.c
new file mode 100644
index 000000000000..a76b8fcb056d
--- /dev/null
+++ b/net/wimax/op-state-get.c
@@ -0,0 +1,86 @@
+/*
+ * Linux WiMAX
+ * Implement and export a method for getting a WiMAX device current state
+ *
+ * Copyright (C) 2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
+ *
+ * Based on previous WiMAX core work by:
+ *  Copyright (C) 2008 Intel Corporation <linux-wimax@intel.com>
+ *  Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+#include <net/wimax.h>
+#include <net/genetlink.h>
+#include <linux/wimax.h>
+#include <linux/security.h>
+#include "wimax-internal.h"
+
+#define D_SUBMODULE op_state_get
+#include "debug-levels.h"
+
+
+static const
+struct nla_policy wimax_gnl_state_get_policy[WIMAX_GNL_ATTR_MAX + 1] = {
+	[WIMAX_GNL_STGET_IFIDX] = {
+		.type = NLA_U32,
+	},
+};
+
+
+/*
+ * Exporting to user space over generic netlink
+ *
+ * Parse the state get command from user space, return a combination
+ * value that describe the current state.
+ *
+ * No attributes.
+ */
+static
+int wimax_gnl_doit_state_get(struct sk_buff *skb, struct genl_info *info)
+{
+	int result, ifindex;
+	struct wimax_dev *wimax_dev;
+	struct device *dev;
+
+	d_fnstart(3, NULL, "(skb %p info %p)\n", skb, info);
+	result = -ENODEV;
+	if (info->attrs[WIMAX_GNL_STGET_IFIDX] == NULL) {
+		printk(KERN_ERR "WIMAX_GNL_OP_STATE_GET: can't find IFIDX "
+			"attribute\n");
+		goto error_no_wimax_dev;
+	}
+	ifindex = nla_get_u32(info->attrs[WIMAX_GNL_STGET_IFIDX]);
+	wimax_dev = wimax_dev_get_by_genl_info(info, ifindex);
+	if (wimax_dev == NULL)
+		goto error_no_wimax_dev;
+	dev = wimax_dev_to_dev(wimax_dev);
+	/* Execute the operation and send the result back to user space */
+	result = wimax_state_get(wimax_dev);
+	dev_put(wimax_dev->net_dev);
+error_no_wimax_dev:
+	d_fnend(3, NULL, "(skb %p info %p) = %d\n", skb, info, result);
+	return result;
+}
+
+
+struct genl_ops wimax_gnl_state_get = {
+	.cmd = WIMAX_GNL_OP_STATE_GET,
+	.flags = GENL_ADMIN_PERM,
+	.policy = wimax_gnl_state_get_policy,
+	.doit = wimax_gnl_doit_state_get,
+	.dumpit = NULL,
+};
diff --git a/net/wimax/stack.c b/net/wimax/stack.c
index 933e1422b09f..79fb7d7c640f 100644
--- a/net/wimax/stack.c
+++ b/net/wimax/stack.c
@@ -402,13 +402,15 @@ EXPORT_SYMBOL_GPL(wimax_dev_init);
 extern struct genl_ops
 	wimax_gnl_msg_from_user,
 	wimax_gnl_reset,
-	wimax_gnl_rfkill;
+	wimax_gnl_rfkill,
+	wimax_gnl_state_get;
 
 static
 struct genl_ops *wimax_gnl_ops[] = {
 	&wimax_gnl_msg_from_user,
 	&wimax_gnl_reset,
 	&wimax_gnl_rfkill,
+	&wimax_gnl_state_get,
 };
 
 
@@ -533,6 +535,7 @@ struct d_level D_LEVEL[] = {
 	D_SUBMODULE_DEFINE(op_msg),
 	D_SUBMODULE_DEFINE(op_reset),
 	D_SUBMODULE_DEFINE(op_rfkill),
+	D_SUBMODULE_DEFINE(op_state_get),
 	D_SUBMODULE_DEFINE(stack),
 };
 size_t D_LEVEL_SIZE = ARRAY_SIZE(D_LEVEL);
diff --git a/net/wireless/Kconfig b/net/wireless/Kconfig
index 3c3bc9e579ed..4428dd5e911d 100644
--- a/net/wireless/Kconfig
+++ b/net/wireless/Kconfig
@@ -1,5 +1,6 @@
 config CFG80211
-        tristate "Improved wireless configuration API"
+	tristate "Improved wireless configuration API"
+	depends on RFKILL || !RFKILL
 
 config CFG80211_REG_DEBUG
 	bool "cfg80211 regulatory debugging"
@@ -10,6 +11,14 @@ config CFG80211_REG_DEBUG
 
 	  If unsure, say N.
 
+config CFG80211_DEBUGFS
+	bool "cfg80211 DebugFS entries"
+	depends on CFG80211 && DEBUG_FS
+	---help---
+	  You can enable this if you want to debugfs entries for cfg80211.
+
+	  If unsure, say N.
+
 config WIRELESS_OLD_REGULATORY
 	bool "Old wireless static regulatory definitions"
 	default n
diff --git a/net/wireless/Makefile b/net/wireless/Makefile
index 6d1e7b27b752..f78c4832a9ca 100644
--- a/net/wireless/Makefile
+++ b/net/wireless/Makefile
@@ -5,7 +5,8 @@ obj-$(CONFIG_LIB80211_CRYPT_WEP) += lib80211_crypt_wep.o
 obj-$(CONFIG_LIB80211_CRYPT_CCMP) += lib80211_crypt_ccmp.o
 obj-$(CONFIG_LIB80211_CRYPT_TKIP) += lib80211_crypt_tkip.o
 
-cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o scan.o nl80211.o mlme.o
+cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o scan.o nl80211.o mlme.o ibss.o
+cfg80211-$(CONFIG_CFG80211_DEBUGFS) += debugfs.o
 cfg80211-$(CONFIG_WIRELESS_EXT) += wext-compat.o
 
 ccflags-y += -D__CHECK_ENDIAN__
diff --git a/net/wireless/core.c b/net/wireless/core.c
index d1f556535f6d..d5850292b3df 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -1,7 +1,7 @@
 /*
  * This is the linux wireless configuration interface.
  *
- * Copyright 2006-2008		Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2006-2009		Johannes Berg <johannes@sipsolutions.net>
  */
 
 #include <linux/if.h>
@@ -12,12 +12,13 @@
 #include <linux/debugfs.h>
 #include <linux/notifier.h>
 #include <linux/device.h>
+#include <linux/rtnetlink.h>
 #include <net/genetlink.h>
 #include <net/cfg80211.h>
-#include <net/wireless.h>
 #include "nl80211.h"
 #include "core.h"
 #include "sysfs.h"
+#include "debugfs.h"
 
 /* name for sysfs, %d is appended */
 #define PHY_NAME "phy"
@@ -227,9 +228,44 @@ int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
 	return 0;
 }
 
+static void cfg80211_rfkill_poll(struct rfkill *rfkill, void *data)
+{
+	struct cfg80211_registered_device *drv = data;
+
+	drv->ops->rfkill_poll(&drv->wiphy);
+}
+
+static int cfg80211_rfkill_set_block(void *data, bool blocked)
+{
+	struct cfg80211_registered_device *drv = data;
+	struct wireless_dev *wdev;
+
+	if (!blocked)
+		return 0;
+
+	rtnl_lock();
+	mutex_lock(&drv->devlist_mtx);
+
+	list_for_each_entry(wdev, &drv->netdev_list, list)
+		dev_close(wdev->netdev);
+
+	mutex_unlock(&drv->devlist_mtx);
+	rtnl_unlock();
+
+	return 0;
+}
+
+static void cfg80211_rfkill_sync_work(struct work_struct *work)
+{
+	struct cfg80211_registered_device *drv;
+
+	drv = container_of(work, struct cfg80211_registered_device, rfkill_sync);
+	cfg80211_rfkill_set_block(drv, rfkill_blocked(drv->rfkill));
+}
+
 /* exported functions */
 
-struct wiphy *wiphy_new(struct cfg80211_ops *ops, int sizeof_priv)
+struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv)
 {
 	static int wiphy_counter;
 
@@ -274,6 +310,28 @@ struct wiphy *wiphy_new(struct cfg80211_ops *ops, int sizeof_priv)
 	drv->wiphy.dev.class = &ieee80211_class;
 	drv->wiphy.dev.platform_data = drv;
 
+	drv->rfkill_ops.set_block = cfg80211_rfkill_set_block;
+	drv->rfkill = rfkill_alloc(dev_name(&drv->wiphy.dev),
+				   &drv->wiphy.dev, RFKILL_TYPE_WLAN,
+				   &drv->rfkill_ops, drv);
+
+	if (!drv->rfkill) {
+		kfree(drv);
+		return NULL;
+	}
+
+	INIT_WORK(&drv->rfkill_sync, cfg80211_rfkill_sync_work);
+
+	/*
+	 * Initialize wiphy parameters to IEEE 802.11 MIB default values.
+	 * Fragmentation and RTS threshold are disabled by default with the
+	 * special -1 value.
+	 */
+	drv->wiphy.retry_short = 7;
+	drv->wiphy.retry_long = 4;
+	drv->wiphy.frag_threshold = (u32) -1;
+	drv->wiphy.rts_threshold = (u32) -1;
+
 	return &drv->wiphy;
 }
 EXPORT_SYMBOL(wiphy_new);
@@ -337,17 +395,23 @@ int wiphy_register(struct wiphy *wiphy)
 	/* check and set up bitrates */
 	ieee80211_set_bitrate_flags(wiphy);
 
+	res = device_add(&drv->wiphy.dev);
+	if (res)
+		return res;
+
+	res = rfkill_register(drv->rfkill);
+	if (res)
+		goto out_rm_dev;
+
 	mutex_lock(&cfg80211_mutex);
 
 	/* set up regulatory info */
 	wiphy_update_regulatory(wiphy, NL80211_REGDOM_SET_BY_CORE);
 
-	res = device_add(&drv->wiphy.dev);
-	if (res)
-		goto out_unlock;
-
 	list_add(&drv->list, &cfg80211_drv_list);
 
+	mutex_unlock(&cfg80211_mutex);
+
 	/* add to debugfs */
 	drv->wiphy.debugfsdir =
 		debugfs_create_dir(wiphy_name(&drv->wiphy),
@@ -366,17 +430,41 @@ int wiphy_register(struct wiphy *wiphy)
 		nl80211_send_reg_change_event(&request);
 	}
 
-	res = 0;
-out_unlock:
-	mutex_unlock(&cfg80211_mutex);
+	cfg80211_debugfs_drv_add(drv);
+
+	return 0;
+
+ out_rm_dev:
+	device_del(&drv->wiphy.dev);
 	return res;
 }
 EXPORT_SYMBOL(wiphy_register);
 
+void wiphy_rfkill_start_polling(struct wiphy *wiphy)
+{
+	struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy);
+
+	if (!drv->ops->rfkill_poll)
+		return;
+	drv->rfkill_ops.poll = cfg80211_rfkill_poll;
+	rfkill_resume_polling(drv->rfkill);
+}
+EXPORT_SYMBOL(wiphy_rfkill_start_polling);
+
+void wiphy_rfkill_stop_polling(struct wiphy *wiphy)
+{
+	struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy);
+
+	rfkill_pause_polling(drv->rfkill);
+}
+EXPORT_SYMBOL(wiphy_rfkill_stop_polling);
+
 void wiphy_unregister(struct wiphy *wiphy)
 {
 	struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy);
 
+	rfkill_unregister(drv->rfkill);
+
 	/* protect the device list */
 	mutex_lock(&cfg80211_mutex);
 
@@ -396,6 +484,8 @@ void wiphy_unregister(struct wiphy *wiphy)
 	/* unlock again before freeing */
 	mutex_unlock(&drv->mtx);
 
+	cfg80211_debugfs_drv_del(drv);
+
 	/* If this device got a regulatory hint tell core its
 	 * free to listen now to a new shiny device regulatory hint */
 	reg_device_remove(wiphy);
@@ -411,6 +501,7 @@ EXPORT_SYMBOL(wiphy_unregister);
 void cfg80211_dev_free(struct cfg80211_registered_device *drv)
 {
 	struct cfg80211_internal_bss *scan, *tmp;
+	rfkill_destroy(drv->rfkill);
 	mutex_destroy(&drv->mtx);
 	mutex_destroy(&drv->devlist_mtx);
 	list_for_each_entry_safe(scan, tmp, &drv->bss_list, list)
@@ -424,6 +515,15 @@ void wiphy_free(struct wiphy *wiphy)
 }
 EXPORT_SYMBOL(wiphy_free);
 
+void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked)
+{
+	struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy);
+
+	if (rfkill_set_hw_state(drv->rfkill, blocked))
+		schedule_work(&drv->rfkill_sync);
+}
+EXPORT_SYMBOL(wiphy_rfkill_set_hw_state);
+
 static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
 					 unsigned long state,
 					 void *ndev)
@@ -432,7 +532,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
 	struct cfg80211_registered_device *rdev;
 
 	if (!dev->ieee80211_ptr)
-		return 0;
+		return NOTIFY_DONE;
 
 	rdev = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
 
@@ -448,8 +548,28 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
 				"symlink to netdev!\n");
 		}
 		dev->ieee80211_ptr->netdev = dev;
+#ifdef CONFIG_WIRELESS_EXT
+		dev->ieee80211_ptr->wext.default_key = -1;
+		dev->ieee80211_ptr->wext.default_mgmt_key = -1;
+#endif
 		mutex_unlock(&rdev->devlist_mtx);
 		break;
+	case NETDEV_GOING_DOWN:
+		if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
+			break;
+		if (!dev->ieee80211_ptr->ssid_len)
+			break;
+		cfg80211_leave_ibss(rdev, dev, true);
+		break;
+	case NETDEV_UP:
+#ifdef CONFIG_WIRELESS_EXT
+		if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
+			break;
+		if (!dev->ieee80211_ptr->wext.ibss.ssid_len)
+			break;
+		cfg80211_join_ibss(rdev, dev, &dev->ieee80211_ptr->wext.ibss);
+		break;
+#endif
 	case NETDEV_UNREGISTER:
 		mutex_lock(&rdev->devlist_mtx);
 		if (!list_empty(&dev->ieee80211_ptr->list)) {
@@ -458,9 +578,13 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
 		}
 		mutex_unlock(&rdev->devlist_mtx);
 		break;
+	case NETDEV_PRE_UP:
+		if (rfkill_blocked(rdev->rfkill))
+			return notifier_from_errno(-ERFKILL);
+		break;
 	}
 
-	return 0;
+	return NOTIFY_DONE;
 }
 
 static struct notifier_block cfg80211_netdev_notifier = {
diff --git a/net/wireless/core.h b/net/wireless/core.h
index 0a592e4295f0..bfa340c7abb5 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -1,7 +1,7 @@
 /*
  * Wireless configuration interface internals.
  *
- * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2006-2009	Johannes Berg <johannes@sipsolutions.net>
  */
 #ifndef __NET_WIRELESS_CORE_H
 #define __NET_WIRELESS_CORE_H
@@ -10,14 +10,15 @@
 #include <linux/netdevice.h>
 #include <linux/kref.h>
 #include <linux/rbtree.h>
-#include <linux/mutex.h>
+#include <linux/debugfs.h>
+#include <linux/rfkill.h>
+#include <linux/workqueue.h>
 #include <net/genetlink.h>
-#include <net/wireless.h>
 #include <net/cfg80211.h>
 #include "reg.h"
 
 struct cfg80211_registered_device {
-	struct cfg80211_ops *ops;
+	const struct cfg80211_ops *ops;
 	struct list_head list;
 	/* we hold this mutex during any call so that
 	 * we cannot do multiple calls at once, and also
@@ -25,6 +26,11 @@ struct cfg80211_registered_device {
 	 * any call is in progress */
 	struct mutex mtx;
 
+	/* rfkill support */
+	struct rfkill_ops rfkill_ops;
+	struct rfkill *rfkill;
+	struct work_struct rfkill_sync;
+
 	/* ISO / IEC 3166 alpha2 for which this device is receiving
 	 * country IEs on, this can help disregard country IEs from APs
 	 * on the same alpha2 quickly. The alpha2 may differ from
@@ -52,6 +58,17 @@ struct cfg80211_registered_device {
 	struct cfg80211_scan_request *scan_req; /* protected by RTNL */
 	unsigned long suspend_at;
 
+#ifdef CONFIG_CFG80211_DEBUGFS
+	/* Debugfs entries */
+	struct wiphy_debugfsdentries {
+		struct dentry *rts_threshold;
+		struct dentry *fragmentation_threshold;
+		struct dentry *short_retry_limit;
+		struct dentry *long_retry_limit;
+		struct dentry *ht40allow_map;
+	} debugfs;
+#endif
+
 	/* must be last because of the way we do wiphy_priv(),
 	 * and it should at least be aligned to NETDEV_ALIGN */
 	struct wiphy wiphy __attribute__((__aligned__(NETDEV_ALIGN)));
@@ -74,10 +91,7 @@ bool wiphy_idx_valid(int wiphy_idx)
 extern struct mutex cfg80211_mutex;
 extern struct list_head cfg80211_drv_list;
 
-static inline void assert_cfg80211_lock(void)
-{
-	WARN_ON(!mutex_is_locked(&cfg80211_mutex));
-}
+#define assert_cfg80211_lock() WARN_ON(!mutex_is_locked(&cfg80211_mutex))
 
 /*
  * You can use this to mark a wiphy_idx as not having an associated wiphy.
@@ -148,4 +162,16 @@ void cfg80211_bss_expire(struct cfg80211_registered_device *dev);
 void cfg80211_bss_age(struct cfg80211_registered_device *dev,
                       unsigned long age_secs);
 
+/* IBSS */
+int cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
+		       struct net_device *dev,
+		       struct cfg80211_ibss_params *params);
+void cfg80211_clear_ibss(struct net_device *dev, bool nowext);
+int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
+			struct net_device *dev, bool nowext);
+
+/* internal helpers */
+int cfg80211_validate_key_settings(struct key_params *params, int key_idx,
+				   const u8 *mac_addr);
+
 #endif /* __NET_WIRELESS_CORE_H */
diff --git a/net/wireless/debugfs.c b/net/wireless/debugfs.c
new file mode 100644
index 000000000000..679ddfcec1ee
--- /dev/null
+++ b/net/wireless/debugfs.c
@@ -0,0 +1,131 @@
+/*
+ * cfg80211 debugfs
+ *
+ * Copyright 2009	Luis R. Rodriguez <lrodriguez@atheros.com>
+ * Copyright 2007	Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include "core.h"
+#include "debugfs.h"
+
+static int cfg80211_open_file_generic(struct inode *inode, struct file *file)
+{
+	file->private_data = inode->i_private;
+	return 0;
+}
+
+#define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...)		\
+static ssize_t name## _read(struct file *file, char __user *userbuf,	\
+			    size_t count, loff_t *ppos)			\
+{									\
+	struct wiphy *wiphy= file->private_data;		\
+	char buf[buflen];						\
+	int res;							\
+									\
+	res = scnprintf(buf, buflen, fmt "\n", ##value);		\
+	return simple_read_from_buffer(userbuf, count, ppos, buf, res);	\
+}									\
+									\
+static const struct file_operations name## _ops = {			\
+	.read = name## _read,						\
+	.open = cfg80211_open_file_generic,				\
+};
+
+DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d",
+		      wiphy->rts_threshold)
+DEBUGFS_READONLY_FILE(fragmentation_threshold, 20, "%d",
+		      wiphy->frag_threshold);
+DEBUGFS_READONLY_FILE(short_retry_limit, 20, "%d",
+		      wiphy->retry_short)
+DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d",
+		      wiphy->retry_long);
+
+static int ht_print_chan(struct ieee80211_channel *chan,
+			 char *buf, int buf_size, int offset)
+{
+	if (WARN_ON(offset > buf_size))
+		return 0;
+
+	if (chan->flags & IEEE80211_CHAN_DISABLED)
+		return snprintf(buf + offset,
+				buf_size - offset,
+				"%d Disabled\n",
+				chan->center_freq);
+
+	return snprintf(buf + offset,
+			buf_size - offset,
+			"%d HT40 %c%c\n",
+			chan->center_freq,
+			(chan->flags & IEEE80211_CHAN_NO_HT40MINUS) ? ' ' : '-',
+			(chan->flags & IEEE80211_CHAN_NO_HT40PLUS)  ? ' ' : '+');
+}
+
+static ssize_t ht40allow_map_read(struct file *file,
+				  char __user *user_buf,
+				  size_t count, loff_t *ppos)
+{
+	struct wiphy *wiphy = file->private_data;
+	char *buf;
+	unsigned int offset = 0, buf_size = PAGE_SIZE, i, r;
+	enum ieee80211_band band;
+	struct ieee80211_supported_band *sband;
+
+	buf = kzalloc(buf_size, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	mutex_lock(&cfg80211_mutex);
+
+	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
+		sband = wiphy->bands[band];
+		if (!sband)
+			continue;
+		for (i = 0; i < sband->n_channels; i++)
+			offset += ht_print_chan(&sband->channels[i],
+						buf, buf_size, offset);
+	}
+
+	mutex_unlock(&cfg80211_mutex);
+
+	r = simple_read_from_buffer(user_buf, count, ppos, buf, offset);
+
+	kfree(buf);
+
+	return r;
+}
+
+static const struct file_operations ht40allow_map_ops = {
+	.read = ht40allow_map_read,
+	.open = cfg80211_open_file_generic,
+};
+
+#define DEBUGFS_ADD(name)						\
+	drv->debugfs.name = debugfs_create_file(#name, S_IRUGO, phyd,	\
+						  &drv->wiphy, &name## _ops);
+#define DEBUGFS_DEL(name)						\
+	debugfs_remove(drv->debugfs.name);				\
+	drv->debugfs.name = NULL;
+
+void cfg80211_debugfs_drv_add(struct cfg80211_registered_device *drv)
+{
+	struct dentry *phyd = drv->wiphy.debugfsdir;
+
+	DEBUGFS_ADD(rts_threshold);
+	DEBUGFS_ADD(fragmentation_threshold);
+	DEBUGFS_ADD(short_retry_limit);
+	DEBUGFS_ADD(long_retry_limit);
+	DEBUGFS_ADD(ht40allow_map);
+}
+
+void cfg80211_debugfs_drv_del(struct cfg80211_registered_device *drv)
+{
+	DEBUGFS_DEL(rts_threshold);
+	DEBUGFS_DEL(fragmentation_threshold);
+	DEBUGFS_DEL(short_retry_limit);
+	DEBUGFS_DEL(long_retry_limit);
+	DEBUGFS_DEL(ht40allow_map);
+}
diff --git a/net/wireless/debugfs.h b/net/wireless/debugfs.h
new file mode 100644
index 000000000000..c226983ae66b
--- /dev/null
+++ b/net/wireless/debugfs.h
@@ -0,0 +1,14 @@
+#ifndef __CFG80211_DEBUGFS_H
+#define __CFG80211_DEBUGFS_H
+
+#ifdef CONFIG_CFG80211_DEBUGFS
+void cfg80211_debugfs_drv_add(struct cfg80211_registered_device *drv);
+void cfg80211_debugfs_drv_del(struct cfg80211_registered_device *drv);
+#else
+static inline
+void cfg80211_debugfs_drv_add(struct cfg80211_registered_device *drv) {}
+static inline
+void cfg80211_debugfs_drv_del(struct cfg80211_registered_device *drv) {}
+#endif
+
+#endif /* __CFG80211_DEBUGFS_H */
diff --git a/net/wireless/ibss.c b/net/wireless/ibss.c
new file mode 100644
index 000000000000..a4a1c3498ff2
--- /dev/null
+++ b/net/wireless/ibss.c
@@ -0,0 +1,369 @@
+/*
+ * Some IBSS support code for cfg80211.
+ *
+ * Copyright 2009	Johannes Berg <johannes@sipsolutions.net>
+ */
+
+#include <linux/etherdevice.h>
+#include <linux/if_arp.h>
+#include <net/cfg80211.h>
+#include "nl80211.h"
+
+
+void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_bss *bss;
+#ifdef CONFIG_WIRELESS_EXT
+	union iwreq_data wrqu;
+#endif
+
+	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_ADHOC))
+		return;
+
+	if (WARN_ON(!wdev->ssid_len))
+		return;
+
+	if (memcmp(bssid, wdev->bssid, ETH_ALEN) == 0)
+		return;
+
+	bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid,
+			       wdev->ssid, wdev->ssid_len,
+			       WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
+
+	if (WARN_ON(!bss))
+		return;
+
+	if (wdev->current_bss) {
+		cfg80211_unhold_bss(wdev->current_bss);
+		cfg80211_put_bss(wdev->current_bss);
+	}
+
+	cfg80211_hold_bss(bss);
+	wdev->current_bss = bss;
+	memcpy(wdev->bssid, bssid, ETH_ALEN);
+
+	nl80211_send_ibss_bssid(wiphy_to_dev(wdev->wiphy), dev, bssid, gfp);
+#ifdef CONFIG_WIRELESS_EXT
+	memset(&wrqu, 0, sizeof(wrqu));
+	memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN);
+	wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
+#endif
+}
+EXPORT_SYMBOL(cfg80211_ibss_joined);
+
+int cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
+		       struct net_device *dev,
+		       struct cfg80211_ibss_params *params)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	int err;
+
+	if (wdev->ssid_len)
+		return -EALREADY;
+
+#ifdef CONFIG_WIRELESS_EXT
+	wdev->wext.ibss.channel = params->channel;
+#endif
+	err = rdev->ops->join_ibss(&rdev->wiphy, dev, params);
+
+	if (err)
+		return err;
+
+	memcpy(wdev->ssid, params->ssid, params->ssid_len);
+	wdev->ssid_len = params->ssid_len;
+
+	return 0;
+}
+
+void cfg80211_clear_ibss(struct net_device *dev, bool nowext)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+
+	if (wdev->current_bss) {
+		cfg80211_unhold_bss(wdev->current_bss);
+		cfg80211_put_bss(wdev->current_bss);
+	}
+
+	wdev->current_bss = NULL;
+	wdev->ssid_len = 0;
+	memset(wdev->bssid, 0, ETH_ALEN);
+#ifdef CONFIG_WIRELESS_EXT
+	if (!nowext)
+		wdev->wext.ibss.ssid_len = 0;
+#endif
+}
+
+int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
+			struct net_device *dev, bool nowext)
+{
+	int err;
+
+	err = rdev->ops->leave_ibss(&rdev->wiphy, dev);
+
+	if (err)
+		return err;
+
+	cfg80211_clear_ibss(dev, nowext);
+
+	return 0;
+}
+
+#ifdef CONFIG_WIRELESS_EXT
+static int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
+				   struct wireless_dev *wdev)
+{
+	enum ieee80211_band band;
+	int i;
+
+	if (!wdev->wext.ibss.beacon_interval)
+		wdev->wext.ibss.beacon_interval = 100;
+
+	/* try to find an IBSS channel if none requested ... */
+	if (!wdev->wext.ibss.channel) {
+		for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
+			struct ieee80211_supported_band *sband;
+			struct ieee80211_channel *chan;
+
+			sband = rdev->wiphy.bands[band];
+			if (!sband)
+				continue;
+
+			for (i = 0; i < sband->n_channels; i++) {
+				chan = &sband->channels[i];
+				if (chan->flags & IEEE80211_CHAN_NO_IBSS)
+					continue;
+				if (chan->flags & IEEE80211_CHAN_DISABLED)
+					continue;
+				wdev->wext.ibss.channel = chan;
+				break;
+			}
+
+			if (wdev->wext.ibss.channel)
+				break;
+		}
+
+		if (!wdev->wext.ibss.channel)
+			return -EINVAL;
+	}
+
+	/* don't join -- SSID is not there */
+	if (!wdev->wext.ibss.ssid_len)
+		return 0;
+
+	if (!netif_running(wdev->netdev))
+		return 0;
+
+	return cfg80211_join_ibss(wiphy_to_dev(wdev->wiphy),
+				  wdev->netdev, &wdev->wext.ibss);
+}
+
+int cfg80211_ibss_wext_siwfreq(struct net_device *dev,
+			       struct iw_request_info *info,
+			       struct iw_freq *freq, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct ieee80211_channel *chan;
+	int err;
+
+	/* call only for ibss! */
+	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_ADHOC))
+		return -EINVAL;
+
+	if (!wiphy_to_dev(wdev->wiphy)->ops->join_ibss)
+		return -EOPNOTSUPP;
+
+	chan = cfg80211_wext_freq(wdev->wiphy, freq);
+	if (chan && IS_ERR(chan))
+		return PTR_ERR(chan);
+
+	if (chan &&
+	    (chan->flags & IEEE80211_CHAN_NO_IBSS ||
+	     chan->flags & IEEE80211_CHAN_DISABLED))
+		return -EINVAL;
+
+	if (wdev->wext.ibss.channel == chan)
+		return 0;
+
+	if (wdev->ssid_len) {
+		err = cfg80211_leave_ibss(wiphy_to_dev(wdev->wiphy),
+					  dev, true);
+		if (err)
+			return err;
+	}
+
+	if (chan) {
+		wdev->wext.ibss.channel = chan;
+		wdev->wext.ibss.channel_fixed = true;
+	} else {
+		/* cfg80211_ibss_wext_join will pick one if needed */
+		wdev->wext.ibss.channel_fixed = false;
+	}
+
+	return cfg80211_ibss_wext_join(wiphy_to_dev(wdev->wiphy), wdev);
+}
+/* temporary symbol - mark GPL - in the future the handler won't be */
+EXPORT_SYMBOL_GPL(cfg80211_ibss_wext_siwfreq);
+
+int cfg80211_ibss_wext_giwfreq(struct net_device *dev,
+			       struct iw_request_info *info,
+			       struct iw_freq *freq, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct ieee80211_channel *chan = NULL;
+
+	/* call only for ibss! */
+	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_ADHOC))
+		return -EINVAL;
+
+	if (wdev->current_bss)
+		chan = wdev->current_bss->channel;
+	else if (wdev->wext.ibss.channel)
+		chan = wdev->wext.ibss.channel;
+
+	if (chan) {
+		freq->m = chan->center_freq;
+		freq->e = 6;
+		return 0;
+	}
+
+	/* no channel if not joining */
+	return -EINVAL;
+}
+/* temporary symbol - mark GPL - in the future the handler won't be */
+EXPORT_SYMBOL_GPL(cfg80211_ibss_wext_giwfreq);
+
+int cfg80211_ibss_wext_siwessid(struct net_device *dev,
+				struct iw_request_info *info,
+				struct iw_point *data, char *ssid)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	size_t len = data->length;
+	int err;
+
+	/* call only for ibss! */
+	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_ADHOC))
+		return -EINVAL;
+
+	if (!wiphy_to_dev(wdev->wiphy)->ops->join_ibss)
+		return -EOPNOTSUPP;
+
+	if (wdev->ssid_len) {
+		err = cfg80211_leave_ibss(wiphy_to_dev(wdev->wiphy),
+					  dev, true);
+		if (err)
+			return err;
+	}
+
+	/* iwconfig uses nul termination in SSID.. */
+	if (len > 0 && ssid[len - 1] == '\0')
+		len--;
+
+	wdev->wext.ibss.ssid = wdev->ssid;
+	memcpy(wdev->wext.ibss.ssid, ssid, len);
+	wdev->wext.ibss.ssid_len = len;
+
+	return cfg80211_ibss_wext_join(wiphy_to_dev(wdev->wiphy), wdev);
+}
+/* temporary symbol - mark GPL - in the future the handler won't be */
+EXPORT_SYMBOL_GPL(cfg80211_ibss_wext_siwessid);
+
+int cfg80211_ibss_wext_giwessid(struct net_device *dev,
+				struct iw_request_info *info,
+				struct iw_point *data, char *ssid)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+
+	/* call only for ibss! */
+	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_ADHOC))
+		return -EINVAL;
+
+	data->flags = 0;
+
+	if (wdev->ssid_len) {
+		data->flags = 1;
+		data->length = wdev->ssid_len;
+		memcpy(ssid, wdev->ssid, data->length);
+	} else if (wdev->wext.ibss.ssid && wdev->wext.ibss.ssid_len) {
+		data->flags = 1;
+		data->length = wdev->wext.ibss.ssid_len;
+		memcpy(ssid, wdev->wext.ibss.ssid, data->length);
+	}
+
+	return 0;
+}
+/* temporary symbol - mark GPL - in the future the handler won't be */
+EXPORT_SYMBOL_GPL(cfg80211_ibss_wext_giwessid);
+
+int cfg80211_ibss_wext_siwap(struct net_device *dev,
+			     struct iw_request_info *info,
+			     struct sockaddr *ap_addr, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	u8 *bssid = ap_addr->sa_data;
+	int err;
+
+	/* call only for ibss! */
+	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_ADHOC))
+		return -EINVAL;
+
+	if (!wiphy_to_dev(wdev->wiphy)->ops->join_ibss)
+		return -EOPNOTSUPP;
+
+	if (ap_addr->sa_family != ARPHRD_ETHER)
+		return -EINVAL;
+
+	/* automatic mode */
+	if (is_zero_ether_addr(bssid) || is_broadcast_ether_addr(bssid))
+		bssid = NULL;
+
+	/* both automatic */
+	if (!bssid && !wdev->wext.ibss.bssid)
+		return 0;
+
+	/* fixed already - and no change */
+	if (wdev->wext.ibss.bssid && bssid &&
+	    compare_ether_addr(bssid, wdev->wext.ibss.bssid) == 0)
+		return 0;
+
+	if (wdev->ssid_len) {
+		err = cfg80211_leave_ibss(wiphy_to_dev(wdev->wiphy),
+					  dev, true);
+		if (err)
+			return err;
+	}
+
+	if (bssid) {
+		memcpy(wdev->wext.bssid, bssid, ETH_ALEN);
+		wdev->wext.ibss.bssid = wdev->wext.bssid;
+	} else
+		wdev->wext.ibss.bssid = NULL;
+
+	return cfg80211_ibss_wext_join(wiphy_to_dev(wdev->wiphy), wdev);
+}
+/* temporary symbol - mark GPL - in the future the handler won't be */
+EXPORT_SYMBOL_GPL(cfg80211_ibss_wext_siwap);
+
+int cfg80211_ibss_wext_giwap(struct net_device *dev,
+			     struct iw_request_info *info,
+			     struct sockaddr *ap_addr, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+
+	/* call only for ibss! */
+	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_ADHOC))
+		return -EINVAL;
+
+	ap_addr->sa_family = ARPHRD_ETHER;
+
+	if (wdev->wext.ibss.bssid) {
+		memcpy(ap_addr->sa_data, wdev->wext.ibss.bssid, ETH_ALEN);
+		return 0;
+	}
+
+	memcpy(ap_addr->sa_data, wdev->bssid, ETH_ALEN);
+	return 0;
+}
+/* temporary symbol - mark GPL - in the future the handler won't be */
+EXPORT_SYMBOL_GPL(cfg80211_ibss_wext_giwap);
+#endif
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index bec5721b6f99..42184361a109 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -28,19 +28,55 @@ void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len)
 }
 EXPORT_SYMBOL(cfg80211_send_rx_assoc);
 
-void cfg80211_send_rx_deauth(struct net_device *dev, const u8 *buf, size_t len)
+void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len)
 {
 	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-	nl80211_send_rx_deauth(rdev, dev, buf, len);
+	nl80211_send_deauth(rdev, dev, buf, len);
 }
-EXPORT_SYMBOL(cfg80211_send_rx_deauth);
+EXPORT_SYMBOL(cfg80211_send_deauth);
 
-void cfg80211_send_rx_disassoc(struct net_device *dev, const u8 *buf,
-			       size_t len)
+void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len)
 {
 	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-	nl80211_send_rx_disassoc(rdev, dev, buf, len);
+	nl80211_send_disassoc(rdev, dev, buf, len);
 }
-EXPORT_SYMBOL(cfg80211_send_rx_disassoc);
+EXPORT_SYMBOL(cfg80211_send_disassoc);
+
+static void cfg80211_wext_disconnected(struct net_device *dev)
+{
+#ifdef CONFIG_WIRELESS_EXT
+	union iwreq_data wrqu;
+	memset(&wrqu, 0, sizeof(wrqu));
+	wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
+#endif
+}
+
+void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr)
+{
+	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+	nl80211_send_auth_timeout(rdev, dev, addr);
+	cfg80211_wext_disconnected(dev);
+}
+EXPORT_SYMBOL(cfg80211_send_auth_timeout);
+
+void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr)
+{
+	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+	nl80211_send_assoc_timeout(rdev, dev, addr);
+	cfg80211_wext_disconnected(dev);
+}
+EXPORT_SYMBOL(cfg80211_send_assoc_timeout);
+
+void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
+				  enum nl80211_key_type key_type, int key_id,
+				  const u8 *tsc)
+{
+	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+	nl80211_michael_mic_failure(rdev, dev, addr, key_type, key_id, tsc);
+}
+EXPORT_SYMBOL(cfg80211_michael_mic_failure);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 2456e4ee445e..241bddd0b4f1 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1,7 +1,7 @@
 /*
  * This is the new netlink-based wireless configuration interface.
  *
- * Copyright 2006, 2007	Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2006-2009	Johannes Berg <johannes@sipsolutions.net>
  */
 
 #include <linux/if.h>
@@ -57,10 +57,14 @@ static int get_drv_dev_by_info_ifindex(struct nlattr **attrs,
 static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
 	[NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
 	[NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
-				      .len = BUS_ID_SIZE-1 },
+				      .len = 20-1 },
 	[NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
 	[NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
 	[NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
+	[NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
+	[NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
+	[NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
+	[NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
 
 	[NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
 	[NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
@@ -73,6 +77,7 @@ static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
 	[NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
 	[NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
 	[NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
+	[NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
 
 	[NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
 	[NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
@@ -116,8 +121,45 @@ static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
 				.len = IEEE80211_MAX_SSID_LEN },
 	[NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
 	[NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
+	[NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
+	[NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
+	[NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
+	[NL80211_ATTR_STA_FLAGS2] = {
+		.len = sizeof(struct nl80211_sta_flag_update),
+	},
+	[NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
 };
 
+/* IE validation */
+static bool is_valid_ie_attr(const struct nlattr *attr)
+{
+	const u8 *pos;
+	int len;
+
+	if (!attr)
+		return true;
+
+	pos = nla_data(attr);
+	len = nla_len(attr);
+
+	while (len) {
+		u8 elemlen;
+
+		if (len < 2)
+			return false;
+		len -= 2;
+
+		elemlen = pos[1];
+		if (elemlen > len)
+			return false;
+
+		len -= elemlen;
+		pos += 2 + elemlen;
+	}
+
+	return true;
+}
+
 /* message building helper */
 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
 				   int flags, u8 cmd)
@@ -126,6 +168,30 @@ static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
 	return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
 }
 
+static int nl80211_msg_put_channel(struct sk_buff *msg,
+				   struct ieee80211_channel *chan)
+{
+	NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
+		    chan->center_freq);
+
+	if (chan->flags & IEEE80211_CHAN_DISABLED)
+		NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
+	if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
+		NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
+	if (chan->flags & IEEE80211_CHAN_NO_IBSS)
+		NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
+	if (chan->flags & IEEE80211_CHAN_RADAR)
+		NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
+
+	NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
+		    DBM_TO_MBM(chan->max_power));
+
+	return 0;
+
+ nla_put_failure:
+	return -ENOBUFS;
+}
+
 /* netlink command implementations */
 
 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
@@ -149,8 +215,24 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
 
 	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
 	NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
+
+	NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
+		   dev->wiphy.retry_short);
+	NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
+		   dev->wiphy.retry_long);
+	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
+		    dev->wiphy.frag_threshold);
+	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
+		    dev->wiphy.rts_threshold);
+
 	NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
 		   dev->wiphy.max_scan_ssids);
+	NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
+		    dev->wiphy.max_scan_ie_len);
+
+	NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
+		sizeof(u32) * dev->wiphy.n_cipher_suites,
+		dev->wiphy.cipher_suites);
 
 	nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
 	if (!nl_modes)
@@ -202,20 +284,9 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
 				goto nla_put_failure;
 
 			chan = &dev->wiphy.bands[band]->channels[i];
-			NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
-				    chan->center_freq);
-
-			if (chan->flags & IEEE80211_CHAN_DISABLED)
-				NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
-			if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
-				NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
-			if (chan->flags & IEEE80211_CHAN_NO_IBSS)
-				NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
-			if (chan->flags & IEEE80211_CHAN_RADAR)
-				NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
 
-			NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
-				    DBM_TO_MBM(chan->max_power));
+			if (nl80211_msg_put_channel(msg, chan))
+				goto nla_put_failure;
 
 			nla_nest_end(msg, nl_freq);
 		}
@@ -273,6 +344,7 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
 	CMD(assoc, ASSOCIATE);
 	CMD(deauth, DEAUTHENTICATE);
 	CMD(disassoc, DISASSOCIATE);
+	CMD(join_ibss, JOIN_IBSS);
 
 #undef CMD
 	nla_nest_end(msg, nl_cmds);
@@ -317,7 +389,7 @@ static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
 	if (IS_ERR(dev))
 		return PTR_ERR(dev);
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg)
 		goto out_err;
 
@@ -365,6 +437,9 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
 	struct cfg80211_registered_device *rdev;
 	int result = 0, rem_txq_params = 0;
 	struct nlattr *nl_txq_params;
+	u32 changed;
+	u8 retry_short = 0, retry_long = 0;
+	u32 frag_threshold = 0, rts_threshold = 0;
 
 	rtnl_lock();
 
@@ -418,7 +493,7 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
 		enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
 		struct ieee80211_channel *chan;
 		struct ieee80211_sta_ht_cap *ht_cap;
-		u32 freq, sec_freq;
+		u32 freq;
 
 		if (!rdev->ops->set_channel) {
 			result = -EOPNOTSUPP;
@@ -444,33 +519,28 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
 		if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
 			goto bad_res;
 
-		if (channel_type == NL80211_CHAN_HT40MINUS)
-			sec_freq = freq - 20;
-		else if (channel_type == NL80211_CHAN_HT40PLUS)
-			sec_freq = freq + 20;
-		else
-			sec_freq = 0;
-
-		ht_cap = &rdev->wiphy.bands[chan->band]->ht_cap;
-
-		/* no HT capabilities */
-		if (channel_type != NL80211_CHAN_NO_HT &&
-		    !ht_cap->ht_supported)
+		if (channel_type == NL80211_CHAN_HT40MINUS &&
+		    (chan->flags & IEEE80211_CHAN_NO_HT40MINUS))
 			goto bad_res;
+		else if (channel_type == NL80211_CHAN_HT40PLUS &&
+			 (chan->flags & IEEE80211_CHAN_NO_HT40PLUS))
+			goto bad_res;
+
+		/*
+		 * At this point we know if that if HT40 was requested
+		 * we are allowed to use it and the extension channel
+		 * exists.
+		 */
 
-		if (sec_freq) {
-			struct ieee80211_channel *schan;
+		ht_cap = &rdev->wiphy.bands[chan->band]->ht_cap;
 
-			/* no 40 MHz capabilities */
+		/* no HT capabilities or intolerant */
+		if (channel_type != NL80211_CHAN_NO_HT) {
+			if (!ht_cap->ht_supported)
+				goto bad_res;
 			if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) ||
 			    (ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT))
 				goto bad_res;
-
-			schan = ieee80211_get_channel(&rdev->wiphy, sec_freq);
-
-			/* Secondary channel not allowed */
-			if (!schan || schan->flags & IEEE80211_CHAN_DISABLED)
-				goto bad_res;
 		}
 
 		result = rdev->ops->set_channel(&rdev->wiphy, chan,
@@ -479,6 +549,84 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
 			goto bad_res;
 	}
 
+	changed = 0;
+
+	if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
+		retry_short = nla_get_u8(
+			info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
+		if (retry_short == 0) {
+			result = -EINVAL;
+			goto bad_res;
+		}
+		changed |= WIPHY_PARAM_RETRY_SHORT;
+	}
+
+	if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
+		retry_long = nla_get_u8(
+			info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
+		if (retry_long == 0) {
+			result = -EINVAL;
+			goto bad_res;
+		}
+		changed |= WIPHY_PARAM_RETRY_LONG;
+	}
+
+	if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
+		frag_threshold = nla_get_u32(
+			info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
+		if (frag_threshold < 256) {
+			result = -EINVAL;
+			goto bad_res;
+		}
+		if (frag_threshold != (u32) -1) {
+			/*
+			 * Fragments (apart from the last one) are required to
+			 * have even length. Make the fragmentation code
+			 * simpler by stripping LSB should someone try to use
+			 * odd threshold value.
+			 */
+			frag_threshold &= ~0x1;
+		}
+		changed |= WIPHY_PARAM_FRAG_THRESHOLD;
+	}
+
+	if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
+		rts_threshold = nla_get_u32(
+			info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
+		changed |= WIPHY_PARAM_RTS_THRESHOLD;
+	}
+
+	if (changed) {
+		u8 old_retry_short, old_retry_long;
+		u32 old_frag_threshold, old_rts_threshold;
+
+		if (!rdev->ops->set_wiphy_params) {
+			result = -EOPNOTSUPP;
+			goto bad_res;
+		}
+
+		old_retry_short = rdev->wiphy.retry_short;
+		old_retry_long = rdev->wiphy.retry_long;
+		old_frag_threshold = rdev->wiphy.frag_threshold;
+		old_rts_threshold = rdev->wiphy.rts_threshold;
+
+		if (changed & WIPHY_PARAM_RETRY_SHORT)
+			rdev->wiphy.retry_short = retry_short;
+		if (changed & WIPHY_PARAM_RETRY_LONG)
+			rdev->wiphy.retry_long = retry_long;
+		if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
+			rdev->wiphy.frag_threshold = frag_threshold;
+		if (changed & WIPHY_PARAM_RTS_THRESHOLD)
+			rdev->wiphy.rts_threshold = rts_threshold;
+
+		result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
+		if (result) {
+			rdev->wiphy.retry_short = old_retry_short;
+			rdev->wiphy.retry_long = old_retry_long;
+			rdev->wiphy.frag_threshold = old_frag_threshold;
+			rdev->wiphy.rts_threshold = old_rts_threshold;
+		}
+	}
 
  bad_res:
 	mutex_unlock(&rdev->mtx);
@@ -489,6 +637,7 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
 
 
 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
+			      struct cfg80211_registered_device *rdev,
 			      struct net_device *dev)
 {
 	void *hdr;
@@ -498,6 +647,7 @@ static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
 		return -1;
 
 	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
+	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
 	NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
 	NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
 	return genlmsg_end(msg, hdr);
@@ -532,7 +682,7 @@ static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *
 			}
 			if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
 					       cb->nlh->nlmsg_seq, NLM_F_MULTI,
-					       wdev->netdev) < 0) {
+					       dev, wdev->netdev) < 0) {
 				mutex_unlock(&dev->devlist_mtx);
 				goto out;
 			}
@@ -562,11 +712,12 @@ static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
 	if (err)
 		return err;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg)
 		goto out_err;
 
-	if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0)
+	if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
+			       dev, netdev) < 0)
 		goto out_free;
 
 	dev_put(netdev);
@@ -616,7 +767,7 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
 	struct cfg80211_registered_device *drv;
 	struct vif_params params;
 	int err, ifindex;
-	enum nl80211_iftype type;
+	enum nl80211_iftype otype, ntype;
 	struct net_device *dev;
 	u32 _flags, *flags = NULL;
 	bool change = false;
@@ -630,30 +781,27 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
 		goto unlock_rtnl;
 
 	ifindex = dev->ifindex;
-	type = dev->ieee80211_ptr->iftype;
+	otype = ntype = dev->ieee80211_ptr->iftype;
 	dev_put(dev);
 
 	if (info->attrs[NL80211_ATTR_IFTYPE]) {
-		enum nl80211_iftype ntype;
-
 		ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
-		if (type != ntype)
+		if (otype != ntype)
 			change = true;
-		type = ntype;
-		if (type > NL80211_IFTYPE_MAX) {
+		if (ntype > NL80211_IFTYPE_MAX) {
 			err = -EINVAL;
 			goto unlock;
 		}
 	}
 
 	if (!drv->ops->change_virtual_intf ||
-	    !(drv->wiphy.interface_modes & (1 << type))) {
+	    !(drv->wiphy.interface_modes & (1 << ntype))) {
 		err = -EOPNOTSUPP;
 		goto unlock;
 	}
 
 	if (info->attrs[NL80211_ATTR_MESH_ID]) {
-		if (type != NL80211_IFTYPE_MESH_POINT) {
+		if (ntype != NL80211_IFTYPE_MESH_POINT) {
 			err = -EINVAL;
 			goto unlock;
 		}
@@ -663,7 +811,7 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
 	}
 
 	if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
-		if (type != NL80211_IFTYPE_MONITOR) {
+		if (ntype != NL80211_IFTYPE_MONITOR) {
 			err = -EINVAL;
 			goto unlock;
 		}
@@ -678,12 +826,17 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
 
 	if (change)
 		err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex,
-						    type, flags, &params);
+						    ntype, flags, &params);
 	else
 		err = 0;
 
 	dev = __dev_get_by_index(&init_net, ifindex);
-	WARN_ON(!dev || (!err && dev->ieee80211_ptr->iftype != type));
+	WARN_ON(!dev || (!err && dev->ieee80211_ptr->iftype != ntype));
+
+	if (dev && !err && (ntype != otype)) {
+		if (otype == NL80211_IFTYPE_ADHOC)
+			cfg80211_clear_ibss(dev, false);
+	}
 
  unlock:
 	cfg80211_put_dev(drv);
@@ -832,7 +985,7 @@ static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
 		goto out;
 	}
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg) {
 		err = -ENOMEM;
 		goto out;
@@ -920,6 +1073,14 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
 	}
 
 	err = func(&drv->wiphy, dev, key_idx);
+#ifdef CONFIG_WIRELESS_EXT
+	if (!err) {
+		if (func == drv->ops->set_default_key)
+			dev->ieee80211_ptr->wext.default_key = key_idx;
+		else
+			dev->ieee80211_ptr->wext.default_mgmt_key = key_idx;
+	}
+#endif
 
  out:
 	cfg80211_put_dev(drv);
@@ -934,7 +1095,7 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
 {
 	struct cfg80211_registered_device *drv;
-	int err;
+	int err, i;
 	struct net_device *dev;
 	struct key_params params;
 	u8 key_idx = 0;
@@ -950,6 +1111,11 @@ static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
 		params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
 	}
 
+	if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
+		params.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
+		params.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
+	}
+
 	if (info->attrs[NL80211_ATTR_KEY_IDX])
 		key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
 
@@ -958,51 +1124,23 @@ static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
 	if (info->attrs[NL80211_ATTR_MAC])
 		mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
 
-	if (key_idx > 5)
+	if (cfg80211_validate_key_settings(&params, key_idx, mac_addr))
 		return -EINVAL;
 
-	/*
-	 * Disallow pairwise keys with non-zero index unless it's WEP
-	 * (because current deployments use pairwise WEP keys with
-	 * non-zero indizes but 802.11i clearly specifies to use zero)
-	 */
-	if (mac_addr && key_idx &&
-	    params.cipher != WLAN_CIPHER_SUITE_WEP40 &&
-	    params.cipher != WLAN_CIPHER_SUITE_WEP104)
-		return -EINVAL;
-
-	/* TODO: add definitions for the lengths to linux/ieee80211.h */
-	switch (params.cipher) {
-	case WLAN_CIPHER_SUITE_WEP40:
-		if (params.key_len != 5)
-			return -EINVAL;
-		break;
-	case WLAN_CIPHER_SUITE_TKIP:
-		if (params.key_len != 32)
-			return -EINVAL;
-		break;
-	case WLAN_CIPHER_SUITE_CCMP:
-		if (params.key_len != 16)
-			return -EINVAL;
-		break;
-	case WLAN_CIPHER_SUITE_WEP104:
-		if (params.key_len != 13)
-			return -EINVAL;
-		break;
-	case WLAN_CIPHER_SUITE_AES_CMAC:
-		if (params.key_len != 16)
-			return -EINVAL;
-		break;
-	default:
-		return -EINVAL;
-	}
-
 	rtnl_lock();
 
 	err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
 	if (err)
 		goto unlock_rtnl;
 
+	for (i = 0; i < drv->wiphy.n_cipher_suites; i++)
+		if (params.cipher == drv->wiphy.cipher_suites[i])
+			break;
+	if (i == drv->wiphy.n_cipher_suites) {
+		err = -EINVAL;
+		goto out;
+	}
+
 	if (!drv->ops->add_key) {
 		err = -EOPNOTSUPP;
 		goto out;
@@ -1049,6 +1187,15 @@ static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
 
 	err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr);
 
+#ifdef CONFIG_WIRELESS_EXT
+	if (!err) {
+		if (key_idx == dev->ieee80211_ptr->wext.default_key)
+			dev->ieee80211_ptr->wext.default_key = -1;
+		else if (key_idx == dev->ieee80211_ptr->wext.default_mgmt_key)
+			dev->ieee80211_ptr->wext.default_mgmt_key = -1;
+	}
+#endif
+
  out:
 	cfg80211_put_dev(drv);
 	dev_put(dev);
@@ -1069,6 +1216,9 @@ static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
 	struct beacon_parameters params;
 	int haveinfo = 0;
 
+	if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
+		return -EINVAL;
+
 	rtnl_lock();
 
 	err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
@@ -1186,15 +1336,36 @@ static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
 	[NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
 	[NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
 	[NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
+	[NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
 };
 
-static int parse_station_flags(struct nlattr *nla, u32 *staflags)
+static int parse_station_flags(struct genl_info *info,
+			       struct station_parameters *params)
 {
 	struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
+	struct nlattr *nla;
 	int flag;
 
-	*staflags = 0;
+	/*
+	 * Try parsing the new attribute first so userspace
+	 * can specify both for older kernels.
+	 */
+	nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
+	if (nla) {
+		struct nl80211_sta_flag_update *sta_flags;
+
+		sta_flags = nla_data(nla);
+		params->sta_flags_mask = sta_flags->mask;
+		params->sta_flags_set = sta_flags->set;
+		if ((params->sta_flags_mask |
+		     params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
+			return -EINVAL;
+		return 0;
+	}
+
+	/* if present, parse the old attribute */
 
+	nla = info->attrs[NL80211_ATTR_STA_FLAGS];
 	if (!nla)
 		return 0;
 
@@ -1202,11 +1373,12 @@ static int parse_station_flags(struct nlattr *nla, u32 *staflags)
 			     nla, sta_flags_policy))
 		return -EINVAL;
 
-	*staflags = STATION_FLAG_CHANGED;
+	params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
+	params->sta_flags_mask &= ~1;
 
 	for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
 		if (flags[flag])
-			*staflags |= (1<<flag);
+			params->sta_flags_set |= (1<<flag);
 
 	return 0;
 }
@@ -1424,7 +1596,7 @@ static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
 	if (err)
 		goto out;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg)
 		goto out;
 
@@ -1502,8 +1674,7 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
 		params.ht_capa =
 			nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
 
-	if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
-				&params.station_flags))
+	if (parse_station_flags(info, &params))
 		return -EINVAL;
 
 	if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
@@ -1520,6 +1691,51 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
 	if (err)
 		goto out;
 
+	/* validate settings */
+	err = 0;
+
+	switch (dev->ieee80211_ptr->iftype) {
+	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_AP_VLAN:
+		/* disallow mesh-specific things */
+		if (params.plink_action)
+			err = -EINVAL;
+		break;
+	case NL80211_IFTYPE_STATION:
+		/* disallow everything but AUTHORIZED flag */
+		if (params.plink_action)
+			err = -EINVAL;
+		if (params.vlan)
+			err = -EINVAL;
+		if (params.supported_rates)
+			err = -EINVAL;
+		if (params.ht_capa)
+			err = -EINVAL;
+		if (params.listen_interval >= 0)
+			err = -EINVAL;
+		if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
+			err = -EINVAL;
+		break;
+	case NL80211_IFTYPE_MESH_POINT:
+		/* disallow things mesh doesn't support */
+		if (params.vlan)
+			err = -EINVAL;
+		if (params.ht_capa)
+			err = -EINVAL;
+		if (params.listen_interval >= 0)
+			err = -EINVAL;
+		if (params.supported_rates)
+			err = -EINVAL;
+		if (params.sta_flags_mask)
+			err = -EINVAL;
+		break;
+	default:
+		err = -EINVAL;
+	}
+
+	if (err)
+		goto out;
+
 	if (!drv->ops->change_station) {
 		err = -EOPNOTSUPP;
 		goto out;
@@ -1551,9 +1767,6 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
 	if (!info->attrs[NL80211_ATTR_MAC])
 		return -EINVAL;
 
-	if (!info->attrs[NL80211_ATTR_STA_AID])
-		return -EINVAL;
-
 	if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
 		return -EINVAL;
 
@@ -1567,13 +1780,18 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
 		nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
 	params.listen_interval =
 		nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
-	params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
+
+	if (info->attrs[NL80211_ATTR_STA_AID]) {
+		params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
+		if (!params.aid || params.aid > IEEE80211_MAX_AID)
+			return -EINVAL;
+	}
+
 	if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
 		params.ht_capa =
 			nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
 
-	if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
-				&params.station_flags))
+	if (parse_station_flags(info, &params))
 		return -EINVAL;
 
 	rtnl_lock();
@@ -1586,6 +1804,38 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
 	if (err)
 		goto out;
 
+	/* validate settings */
+	err = 0;
+
+	switch (dev->ieee80211_ptr->iftype) {
+	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_AP_VLAN:
+		/* all ok but must have AID */
+		if (!params.aid)
+			err = -EINVAL;
+		break;
+	case NL80211_IFTYPE_MESH_POINT:
+		/* disallow things mesh doesn't support */
+		if (params.vlan)
+			err = -EINVAL;
+		if (params.aid)
+			err = -EINVAL;
+		if (params.ht_capa)
+			err = -EINVAL;
+		if (params.listen_interval >= 0)
+			err = -EINVAL;
+		if (params.supported_rates)
+			err = -EINVAL;
+		if (params.sta_flags_mask)
+			err = -EINVAL;
+		break;
+	default:
+		err = -EINVAL;
+	}
+
+	if (err)
+		goto out;
+
 	if (!drv->ops->add_station) {
 		err = -EOPNOTSUPP;
 		goto out;
@@ -1625,6 +1875,13 @@ static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
 	if (err)
 		goto out_rtnl;
 
+	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
+	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
+	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
+		err = -EINVAL;
+		goto out;
+	}
+
 	if (!drv->ops->del_station) {
 		err = -EOPNOTSUPP;
 		goto out;
@@ -1808,7 +2065,7 @@ static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
 	if (err)
 		goto out;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg)
 		goto out;
 
@@ -2124,7 +2381,7 @@ static int nl80211_get_mesh_params(struct sk_buff *skb,
 		goto out;
 
 	/* Draw up a netlink message to send back */
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg) {
 		err = -ENOBUFS;
 		goto out;
@@ -2302,7 +2559,7 @@ static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
 	if (!cfg80211_regdomain)
 		goto out;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg) {
 		err = -ENOBUFS;
 		goto out;
@@ -2385,18 +2642,24 @@ static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
 			rem_reg_rules) {
 		num_rules++;
 		if (num_rules > NL80211_MAX_SUPP_REG_RULES)
-			goto bad_reg;
+			return -EINVAL;
 	}
 
-	if (!reg_is_valid_request(alpha2))
-		return -EINVAL;
+	mutex_lock(&cfg80211_mutex);
+
+	if (!reg_is_valid_request(alpha2)) {
+		r = -EINVAL;
+		goto bad_reg;
+	}
 
 	size_of_regd = sizeof(struct ieee80211_regdomain) +
 		(num_rules * sizeof(struct ieee80211_reg_rule));
 
 	rd = kzalloc(size_of_regd, GFP_KERNEL);
-	if (!rd)
-		return -ENOMEM;
+	if (!rd) {
+		r = -ENOMEM;
+		goto bad_reg;
+	}
 
 	rd->n_reg_rules = num_rules;
 	rd->alpha2[0] = alpha2[0];
@@ -2413,20 +2676,24 @@ static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
 
 		rule_idx++;
 
-		if (rule_idx > NL80211_MAX_SUPP_REG_RULES)
+		if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
+			r = -EINVAL;
 			goto bad_reg;
+		}
 	}
 
 	BUG_ON(rule_idx != num_rules);
 
-	mutex_lock(&cfg80211_mutex);
 	r = set_regdom(rd);
+
 	mutex_unlock(&cfg80211_mutex);
+
 	return r;
 
  bad_reg:
+	mutex_unlock(&cfg80211_mutex);
 	kfree(rd);
-	return -EINVAL;
+	return r;
 }
 
 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
@@ -2442,6 +2709,9 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
 	enum ieee80211_band band;
 	size_t ie_len;
 
+	if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
+		return -EINVAL;
+
 	rtnl_lock();
 
 	err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
@@ -2492,6 +2762,11 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
 	else
 		ie_len = 0;
 
+	if (ie_len > wiphy->max_scan_ie_len) {
+		err = -EINVAL;
+		goto out;
+	}
+
 	request = kzalloc(sizeof(*request)
 			+ sizeof(*ssid) * n_ssids
 			+ sizeof(channel) * n_channels
@@ -2554,7 +2829,8 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
 
 	if (info->attrs[NL80211_ATTR_IE]) {
 		request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
-		memcpy(request->ie, nla_data(info->attrs[NL80211_ATTR_IE]),
+		memcpy((void *)request->ie,
+		       nla_data(info->attrs[NL80211_ATTR_IE]),
 		       request->ie_len);
 	}
 
@@ -2710,6 +2986,15 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
 	struct wiphy *wiphy;
 	int err;
 
+	if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
+		return -EINVAL;
+
+	if (!info->attrs[NL80211_ATTR_MAC])
+		return -EINVAL;
+
+	if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
+		return -EINVAL;
+
 	rtnl_lock();
 
 	err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
@@ -2731,11 +3016,6 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
 		goto out;
 	}
 
-	if (!info->attrs[NL80211_ATTR_MAC]) {
-		err = -EINVAL;
-		goto out;
-	}
-
 	wiphy = &drv->wiphy;
 	memset(&req, 0, sizeof(req));
 
@@ -2761,13 +3041,10 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
 		req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
 	}
 
-	if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
-		req.auth_type =
-			nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
-		if (!nl80211_valid_auth_type(req.auth_type)) {
-			err = -EINVAL;
-			goto out;
-		}
+	req.auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
+	if (!nl80211_valid_auth_type(req.auth_type)) {
+		err = -EINVAL;
+		goto out;
 	}
 
 	err = drv->ops->auth(&drv->wiphy, dev, &req);
@@ -2788,6 +3065,13 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
 	struct wiphy *wiphy;
 	int err;
 
+	if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
+		return -EINVAL;
+
+	if (!info->attrs[NL80211_ATTR_MAC] ||
+	    !info->attrs[NL80211_ATTR_SSID])
+		return -EINVAL;
+
 	rtnl_lock();
 
 	err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
@@ -2809,12 +3093,6 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
 		goto out;
 	}
 
-	if (!info->attrs[NL80211_ATTR_MAC] ||
-	    !info->attrs[NL80211_ATTR_SSID]) {
-		err = -EINVAL;
-		goto out;
-	}
-
 	wiphy = &drv->wiphy;
 	memset(&req, 0, sizeof(req));
 
@@ -2838,6 +3116,19 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
 		req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
 	}
 
+	if (info->attrs[NL80211_ATTR_USE_MFP]) {
+		enum nl80211_mfp use_mfp =
+			nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
+		if (use_mfp == NL80211_MFP_REQUIRED)
+			req.use_mfp = true;
+		else if (use_mfp != NL80211_MFP_NO) {
+			err = -EINVAL;
+			goto out;
+		}
+	}
+
+	req.control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
+
 	err = drv->ops->assoc(&drv->wiphy, dev, &req);
 
 out:
@@ -2856,6 +3147,15 @@ static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
 	struct wiphy *wiphy;
 	int err;
 
+	if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
+		return -EINVAL;
+
+	if (!info->attrs[NL80211_ATTR_MAC])
+		return -EINVAL;
+
+	if (!info->attrs[NL80211_ATTR_REASON_CODE])
+		return -EINVAL;
+
 	rtnl_lock();
 
 	err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
@@ -2877,24 +3177,16 @@ static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
 		goto out;
 	}
 
-	if (!info->attrs[NL80211_ATTR_MAC]) {
-		err = -EINVAL;
-		goto out;
-	}
-
 	wiphy = &drv->wiphy;
 	memset(&req, 0, sizeof(req));
 
 	req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
 
-	if (info->attrs[NL80211_ATTR_REASON_CODE]) {
-		req.reason_code =
-			nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
-		if (req.reason_code == 0) {
-			/* Reason Code 0 is reserved */
-			err = -EINVAL;
-			goto out;
-		}
+	req.reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
+	if (req.reason_code == 0) {
+		/* Reason Code 0 is reserved */
+		err = -EINVAL;
+		goto out;
 	}
 
 	if (info->attrs[NL80211_ATTR_IE]) {
@@ -2920,6 +3212,15 @@ static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
 	struct wiphy *wiphy;
 	int err;
 
+	if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
+		return -EINVAL;
+
+	if (!info->attrs[NL80211_ATTR_MAC])
+		return -EINVAL;
+
+	if (!info->attrs[NL80211_ATTR_REASON_CODE])
+		return -EINVAL;
+
 	rtnl_lock();
 
 	err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
@@ -2941,24 +3242,16 @@ static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
 		goto out;
 	}
 
-	if (!info->attrs[NL80211_ATTR_MAC]) {
-		err = -EINVAL;
-		goto out;
-	}
-
 	wiphy = &drv->wiphy;
 	memset(&req, 0, sizeof(req));
 
 	req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
 
-	if (info->attrs[NL80211_ATTR_REASON_CODE]) {
-		req.reason_code =
-			nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
-		if (req.reason_code == 0) {
-			/* Reason Code 0 is reserved */
-			err = -EINVAL;
-			goto out;
-		}
+	req.reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
+	if (req.reason_code == 0) {
+		/* Reason Code 0 is reserved */
+		err = -EINVAL;
+		goto out;
 	}
 
 	if (info->attrs[NL80211_ATTR_IE]) {
@@ -2976,6 +3269,124 @@ unlock_rtnl:
 	return err;
 }
 
+static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
+{
+	struct cfg80211_registered_device *drv;
+	struct net_device *dev;
+	struct cfg80211_ibss_params ibss;
+	struct wiphy *wiphy;
+	int err;
+
+	memset(&ibss, 0, sizeof(ibss));
+
+	if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
+		return -EINVAL;
+
+	if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
+	    !info->attrs[NL80211_ATTR_SSID] ||
+	    !nla_len(info->attrs[NL80211_ATTR_SSID]))
+		return -EINVAL;
+
+	ibss.beacon_interval = 100;
+
+	if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
+		ibss.beacon_interval =
+			nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
+		if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
+			return -EINVAL;
+	}
+
+	rtnl_lock();
+
+	err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
+	if (err)
+		goto unlock_rtnl;
+
+	if (!drv->ops->join_ibss) {
+		err = -EOPNOTSUPP;
+		goto out;
+	}
+
+	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
+		err = -EOPNOTSUPP;
+		goto out;
+	}
+
+	if (!netif_running(dev)) {
+		err = -ENETDOWN;
+		goto out;
+	}
+
+	wiphy = &drv->wiphy;
+
+	if (info->attrs[NL80211_ATTR_MAC])
+		ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
+	ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
+	ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
+
+	if (info->attrs[NL80211_ATTR_IE]) {
+		ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
+		ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+	}
+
+	ibss.channel = ieee80211_get_channel(wiphy,
+		nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
+	if (!ibss.channel ||
+	    ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
+	    ibss.channel->flags & IEEE80211_CHAN_DISABLED) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
+
+	err = cfg80211_join_ibss(drv, dev, &ibss);
+
+out:
+	cfg80211_put_dev(drv);
+	dev_put(dev);
+unlock_rtnl:
+	rtnl_unlock();
+	return err;
+}
+
+static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
+{
+	struct cfg80211_registered_device *drv;
+	struct net_device *dev;
+	int err;
+
+	rtnl_lock();
+
+	err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
+	if (err)
+		goto unlock_rtnl;
+
+	if (!drv->ops->leave_ibss) {
+		err = -EOPNOTSUPP;
+		goto out;
+	}
+
+	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
+		err = -EOPNOTSUPP;
+		goto out;
+	}
+
+	if (!netif_running(dev)) {
+		err = -ENETDOWN;
+		goto out;
+	}
+
+	err = cfg80211_leave_ibss(drv, dev, false);
+
+out:
+	cfg80211_put_dev(drv);
+	dev_put(dev);
+unlock_rtnl:
+	rtnl_unlock();
+	return err;
+}
+
 static struct genl_ops nl80211_ops[] = {
 	{
 		.cmd = NL80211_CMD_GET_WIPHY,
@@ -3177,6 +3588,18 @@ static struct genl_ops nl80211_ops[] = {
 		.policy = nl80211_policy,
 		.flags = GENL_ADMIN_PERM,
 	},
+	{
+		.cmd = NL80211_CMD_JOIN_IBSS,
+		.doit = nl80211_join_ibss,
+		.policy = nl80211_policy,
+		.flags = GENL_ADMIN_PERM,
+	},
+	{
+		.cmd = NL80211_CMD_LEAVE_IBSS,
+		.doit = nl80211_leave_ibss,
+		.policy = nl80211_policy,
+		.flags = GENL_ADMIN_PERM,
+	},
 };
 static struct genl_multicast_group nl80211_mlme_mcgrp = {
 	.name = "mlme",
@@ -3199,7 +3622,7 @@ void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
 {
 	struct sk_buff *msg;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg)
 		return;
 
@@ -3211,11 +3634,43 @@ void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
 	genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL);
 }
 
+static int nl80211_add_scan_req(struct sk_buff *msg,
+				struct cfg80211_registered_device *rdev)
+{
+	struct cfg80211_scan_request *req = rdev->scan_req;
+	struct nlattr *nest;
+	int i;
+
+	if (WARN_ON(!req))
+		return 0;
+
+	nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
+	if (!nest)
+		goto nla_put_failure;
+	for (i = 0; i < req->n_ssids; i++)
+		NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
+	nla_nest_end(msg, nest);
+
+	nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
+	if (!nest)
+		goto nla_put_failure;
+	for (i = 0; i < req->n_channels; i++)
+		NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
+	nla_nest_end(msg, nest);
+
+	if (req->ie)
+		NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
+
+	return 0;
+ nla_put_failure:
+	return -ENOBUFS;
+}
+
 static int nl80211_send_scan_donemsg(struct sk_buff *msg,
-				    struct cfg80211_registered_device *rdev,
-				    struct net_device *netdev,
-				    u32 pid, u32 seq, int flags,
-				    u32 cmd)
+				     struct cfg80211_registered_device *rdev,
+				     struct net_device *netdev,
+				     u32 pid, u32 seq, int flags,
+				     u32 cmd)
 {
 	void *hdr;
 
@@ -3226,7 +3681,8 @@ static int nl80211_send_scan_donemsg(struct sk_buff *msg,
 	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
 	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
 
-	/* XXX: we should probably bounce back the request? */
+	/* ignore errors and send incomplete event anyway */
+	nl80211_add_scan_req(msg, rdev);
 
 	return genlmsg_end(msg, hdr);
 
@@ -3240,7 +3696,7 @@ void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
 {
 	struct sk_buff *msg;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg)
 		return;
 
@@ -3258,7 +3714,7 @@ void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
 {
 	struct sk_buff *msg;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg)
 		return;
 
@@ -3280,7 +3736,7 @@ void nl80211_send_reg_change_event(struct regulatory_request *request)
 	struct sk_buff *msg;
 	void *hdr;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg)
 		return;
 
@@ -3334,7 +3790,7 @@ static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
 	struct sk_buff *msg;
 	void *hdr;
 
-	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
 	if (!msg)
 		return;
 
@@ -3375,38 +3831,208 @@ void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
 	nl80211_send_mlme_event(rdev, netdev, buf, len, NL80211_CMD_ASSOCIATE);
 }
 
-void nl80211_send_rx_deauth(struct cfg80211_registered_device *rdev,
-			    struct net_device *netdev, const u8 *buf,
-			    size_t len)
+void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
+			 struct net_device *netdev, const u8 *buf, size_t len)
 {
 	nl80211_send_mlme_event(rdev, netdev, buf, len,
 				NL80211_CMD_DEAUTHENTICATE);
 }
 
-void nl80211_send_rx_disassoc(struct cfg80211_registered_device *rdev,
-			      struct net_device *netdev, const u8 *buf,
-			      size_t len)
+void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
+			   struct net_device *netdev, const u8 *buf,
+			   size_t len)
 {
 	nl80211_send_mlme_event(rdev, netdev, buf, len,
 				NL80211_CMD_DISASSOCIATE);
 }
 
+static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
+				      struct net_device *netdev, int cmd,
+				      const u8 *addr)
+{
+	struct sk_buff *msg;
+	void *hdr;
+
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
+	if (!msg)
+		return;
+
+	hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
+	if (!hdr) {
+		nlmsg_free(msg);
+		return;
+	}
+
+	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
+	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
+	NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
+	NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
+
+	if (genlmsg_end(msg, hdr) < 0) {
+		nlmsg_free(msg);
+		return;
+	}
+
+	genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_ATOMIC);
+	return;
+
+ nla_put_failure:
+	genlmsg_cancel(msg, hdr);
+	nlmsg_free(msg);
+}
+
+void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
+			       struct net_device *netdev, const u8 *addr)
+{
+	nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
+				  addr);
+}
+
+void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
+				struct net_device *netdev, const u8 *addr)
+{
+	nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, addr);
+}
+
+void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
+			     struct net_device *netdev, const u8 *bssid,
+			     gfp_t gfp)
+{
+	struct sk_buff *msg;
+	void *hdr;
+
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
+	if (!msg)
+		return;
+
+	hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
+	if (!hdr) {
+		nlmsg_free(msg);
+		return;
+	}
+
+	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
+	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
+	NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
+
+	if (genlmsg_end(msg, hdr) < 0) {
+		nlmsg_free(msg);
+		return;
+	}
+
+	genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
+	return;
+
+ nla_put_failure:
+	genlmsg_cancel(msg, hdr);
+	nlmsg_free(msg);
+}
+
+void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
+				 struct net_device *netdev, const u8 *addr,
+				 enum nl80211_key_type key_type, int key_id,
+				 const u8 *tsc)
+{
+	struct sk_buff *msg;
+	void *hdr;
+
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
+	if (!msg)
+		return;
+
+	hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
+	if (!hdr) {
+		nlmsg_free(msg);
+		return;
+	}
+
+	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
+	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
+	if (addr)
+		NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
+	NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
+	NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
+	if (tsc)
+		NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
+
+	if (genlmsg_end(msg, hdr) < 0) {
+		nlmsg_free(msg);
+		return;
+	}
+
+	genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_ATOMIC);
+	return;
+
+ nla_put_failure:
+	genlmsg_cancel(msg, hdr);
+	nlmsg_free(msg);
+}
+
+void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
+				    struct ieee80211_channel *channel_before,
+				    struct ieee80211_channel *channel_after)
+{
+	struct sk_buff *msg;
+	void *hdr;
+	struct nlattr *nl_freq;
+
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
+	if (!msg)
+		return;
+
+	hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
+	if (!hdr) {
+		nlmsg_free(msg);
+		return;
+	}
+
+	/*
+	 * Since we are applying the beacon hint to a wiphy we know its
+	 * wiphy_idx is valid
+	 */
+	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
+
+	/* Before */
+	nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
+	if (!nl_freq)
+		goto nla_put_failure;
+	if (nl80211_msg_put_channel(msg, channel_before))
+		goto nla_put_failure;
+	nla_nest_end(msg, nl_freq);
+
+	/* After */
+	nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
+	if (!nl_freq)
+		goto nla_put_failure;
+	if (nl80211_msg_put_channel(msg, channel_after))
+		goto nla_put_failure;
+	nla_nest_end(msg, nl_freq);
+
+	if (genlmsg_end(msg, hdr) < 0) {
+		nlmsg_free(msg);
+		return;
+	}
+
+	genlmsg_multicast(msg, 0, nl80211_regulatory_mcgrp.id, GFP_ATOMIC);
+
+	return;
+
+nla_put_failure:
+	genlmsg_cancel(msg, hdr);
+	nlmsg_free(msg);
+}
+
 /* initialisation/exit functions */
 
 int nl80211_init(void)
 {
-	int err, i;
+	int err;
 
-	err = genl_register_family(&nl80211_fam);
+	err = genl_register_family_with_ops(&nl80211_fam,
+		nl80211_ops, ARRAY_SIZE(nl80211_ops));
 	if (err)
 		return err;
 
-	for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) {
-		err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]);
-		if (err)
-			goto err_out;
-	}
-
 	err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
 	if (err)
 		goto err_out;
diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h
index b77af4ab80be..5c12ad13499b 100644
--- a/net/wireless/nl80211.h
+++ b/net/wireless/nl80211.h
@@ -17,11 +17,31 @@ extern void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
 extern void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
 				  struct net_device *netdev,
 				  const u8 *buf, size_t len);
-extern void nl80211_send_rx_deauth(struct cfg80211_registered_device *rdev,
-				   struct net_device *netdev,
-				   const u8 *buf, size_t len);
-extern void nl80211_send_rx_disassoc(struct cfg80211_registered_device *rdev,
-				     struct net_device *netdev,
-				     const u8 *buf, size_t len);
+extern void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
+				struct net_device *netdev,
+				const u8 *buf, size_t len);
+extern void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
+				  struct net_device *netdev,
+				  const u8 *buf, size_t len);
+extern void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
+				      struct net_device *netdev,
+				      const u8 *addr);
+extern void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
+				       struct net_device *netdev,
+				       const u8 *addr);
+extern void
+nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
+			    struct net_device *netdev, const u8 *addr,
+			    enum nl80211_key_type key_type,
+			    int key_id, const u8 *tsc);
+
+extern void
+nl80211_send_beacon_hint_event(struct wiphy *wiphy,
+			       struct ieee80211_channel *channel_before,
+			       struct ieee80211_channel *channel_after);
+
+void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
+			     struct net_device *netdev, const u8 *bssid,
+			     gfp_t gfp);
 
 #endif /* __NET_WIRELESS_NL80211_H */
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 487cb627ddba..5e14371cda70 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -37,7 +37,6 @@
 #include <linux/random.h>
 #include <linux/nl80211.h>
 #include <linux/platform_device.h>
-#include <net/wireless.h>
 #include <net/cfg80211.h>
 #include "core.h"
 #include "reg.h"
@@ -49,12 +48,6 @@ static struct regulatory_request *last_request;
 /* To trigger userspace events */
 static struct platform_device *reg_pdev;
 
-/* Keep the ordering from large to small */
-static u32 supported_bandwidths[] = {
-	MHZ_TO_KHZ(40),
-	MHZ_TO_KHZ(20),
-};
-
 /*
  * Central wireless core regulatory domains, we only need two,
  * the current one and a world regulatory domain in case we have no
@@ -389,6 +382,8 @@ static int call_crda(const char *alpha2)
 /* Used by nl80211 before kmalloc'ing our regulatory domain */
 bool reg_is_valid_request(const char *alpha2)
 {
+	assert_cfg80211_lock();
+
 	if (!last_request)
 		return false;
 
@@ -436,19 +431,20 @@ static bool is_valid_rd(const struct ieee80211_regdomain *rd)
 	return true;
 }
 
-/* Returns value in KHz */
-static u32 freq_max_bandwidth(const struct ieee80211_freq_range *freq_range,
-	u32 freq)
+static bool reg_does_bw_fit(const struct ieee80211_freq_range *freq_range,
+			    u32 center_freq_khz,
+			    u32 bw_khz)
 {
-	unsigned int i;
-	for (i = 0; i < ARRAY_SIZE(supported_bandwidths); i++) {
-		u32 start_freq_khz = freq - supported_bandwidths[i]/2;
-		u32 end_freq_khz = freq + supported_bandwidths[i]/2;
-		if (start_freq_khz >= freq_range->start_freq_khz &&
-			end_freq_khz <= freq_range->end_freq_khz)
-			return supported_bandwidths[i];
-	}
-	return 0;
+	u32 start_freq_khz, end_freq_khz;
+
+	start_freq_khz = center_freq_khz - (bw_khz/2);
+	end_freq_khz = center_freq_khz + (bw_khz/2);
+
+	if (start_freq_khz >= freq_range->start_freq_khz &&
+	    end_freq_khz <= freq_range->end_freq_khz)
+		return true;
+
+	return false;
 }
 
 /**
@@ -848,14 +844,17 @@ static u32 map_regdom_flags(u32 rd_flags)
 
 static int freq_reg_info_regd(struct wiphy *wiphy,
 			      u32 center_freq,
-			      u32 *bandwidth,
+			      u32 desired_bw_khz,
 			      const struct ieee80211_reg_rule **reg_rule,
 			      const struct ieee80211_regdomain *custom_regd)
 {
 	int i;
 	bool band_rule_found = false;
 	const struct ieee80211_regdomain *regd;
-	u32 max_bandwidth = 0;
+	bool bw_fits = false;
+
+	if (!desired_bw_khz)
+		desired_bw_khz = MHZ_TO_KHZ(20);
 
 	regd = custom_regd ? custom_regd : cfg80211_regdomain;
 
@@ -888,38 +887,54 @@ static int freq_reg_info_regd(struct wiphy *wiphy,
 		if (!band_rule_found)
 			band_rule_found = freq_in_rule_band(fr, center_freq);
 
-		max_bandwidth = freq_max_bandwidth(fr, center_freq);
+		bw_fits = reg_does_bw_fit(fr,
+					  center_freq,
+					  desired_bw_khz);
 
-		if (max_bandwidth && *bandwidth <= max_bandwidth) {
+		if (band_rule_found && bw_fits) {
 			*reg_rule = rr;
-			*bandwidth = max_bandwidth;
-			break;
+			return 0;
 		}
 	}
 
 	if (!band_rule_found)
 		return -ERANGE;
 
-	return !max_bandwidth;
+	return -EINVAL;
 }
 EXPORT_SYMBOL(freq_reg_info);
 
-int freq_reg_info(struct wiphy *wiphy, u32 center_freq, u32 *bandwidth,
-			 const struct ieee80211_reg_rule **reg_rule)
+int freq_reg_info(struct wiphy *wiphy,
+		  u32 center_freq,
+		  u32 desired_bw_khz,
+		  const struct ieee80211_reg_rule **reg_rule)
 {
 	assert_cfg80211_lock();
-	return freq_reg_info_regd(wiphy, center_freq,
-		bandwidth, reg_rule, NULL);
+	return freq_reg_info_regd(wiphy,
+				  center_freq,
+				  desired_bw_khz,
+				  reg_rule,
+				  NULL);
 }
 
+/*
+ * Note that right now we assume the desired channel bandwidth
+ * is always 20 MHz for each individual channel (HT40 uses 20 MHz
+ * per channel, the primary and the extension channel). To support
+ * smaller custom bandwidths such as 5 MHz or 10 MHz we'll need a
+ * new ieee80211_channel.target_bw and re run the regulatory check
+ * on the wiphy with the target_bw specified. Then we can simply use
+ * that below for the desired_bw_khz below.
+ */
 static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band,
 			   unsigned int chan_idx)
 {
 	int r;
-	u32 flags;
-	u32 max_bandwidth = 0;
+	u32 flags, bw_flags = 0;
+	u32 desired_bw_khz = MHZ_TO_KHZ(20);
 	const struct ieee80211_reg_rule *reg_rule = NULL;
 	const struct ieee80211_power_rule *power_rule = NULL;
+	const struct ieee80211_freq_range *freq_range = NULL;
 	struct ieee80211_supported_band *sband;
 	struct ieee80211_channel *chan;
 	struct wiphy *request_wiphy = NULL;
@@ -934,8 +949,10 @@ static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band,
 
 	flags = chan->orig_flags;
 
-	r = freq_reg_info(wiphy, MHZ_TO_KHZ(chan->center_freq),
-		&max_bandwidth, &reg_rule);
+	r = freq_reg_info(wiphy,
+			  MHZ_TO_KHZ(chan->center_freq),
+			  desired_bw_khz,
+			  &reg_rule);
 
 	if (r) {
 		/*
@@ -978,6 +995,10 @@ static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band,
 	}
 
 	power_rule = &reg_rule->power_rule;
+	freq_range = &reg_rule->freq_range;
+
+	if (freq_range->max_bandwidth_khz < MHZ_TO_KHZ(40))
+		bw_flags = IEEE80211_CHAN_NO_HT40;
 
 	if (last_request->initiator == NL80211_REGDOM_SET_BY_DRIVER &&
 	    request_wiphy && request_wiphy == wiphy &&
@@ -988,19 +1009,19 @@ static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band,
 		 * settings
 		 */
 		chan->flags = chan->orig_flags =
-			map_regdom_flags(reg_rule->flags);
+			map_regdom_flags(reg_rule->flags) | bw_flags;
 		chan->max_antenna_gain = chan->orig_mag =
 			(int) MBI_TO_DBI(power_rule->max_antenna_gain);
-		chan->max_bandwidth = KHZ_TO_MHZ(max_bandwidth);
+		chan->max_bandwidth = KHZ_TO_MHZ(desired_bw_khz);
 		chan->max_power = chan->orig_mpwr =
 			(int) MBM_TO_DBM(power_rule->max_eirp);
 		return;
 	}
 
-	chan->flags = flags | map_regdom_flags(reg_rule->flags);
+	chan->flags = flags | bw_flags | map_regdom_flags(reg_rule->flags);
 	chan->max_antenna_gain = min(chan->orig_mag,
 		(int) MBI_TO_DBI(power_rule->max_antenna_gain));
-	chan->max_bandwidth = KHZ_TO_MHZ(max_bandwidth);
+	chan->max_bandwidth = KHZ_TO_MHZ(desired_bw_khz);
 	if (chan->orig_mpwr)
 		chan->max_power = min(chan->orig_mpwr,
 			(int) MBM_TO_DBM(power_rule->max_eirp));
@@ -1050,18 +1071,10 @@ static void handle_reg_beacon(struct wiphy *wiphy,
 			      unsigned int chan_idx,
 			      struct reg_beacon *reg_beacon)
 {
-#ifdef CONFIG_CFG80211_REG_DEBUG
-#define REG_DEBUG_BEACON_FLAG(desc) \
-	printk(KERN_DEBUG "cfg80211: Enabling " desc " on " \
-		"frequency: %d MHz (Ch %d) on %s\n", \
-		reg_beacon->chan.center_freq, \
-		ieee80211_frequency_to_channel(reg_beacon->chan.center_freq), \
-		wiphy_name(wiphy));
-#else
-#define REG_DEBUG_BEACON_FLAG(desc) do {} while (0)
-#endif
 	struct ieee80211_supported_band *sband;
 	struct ieee80211_channel *chan;
+	bool channel_changed = false;
+	struct ieee80211_channel chan_before;
 
 	assert_cfg80211_lock();
 
@@ -1071,18 +1084,28 @@ static void handle_reg_beacon(struct wiphy *wiphy,
 	if (likely(chan->center_freq != reg_beacon->chan.center_freq))
 		return;
 
-	if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) {
+	if (chan->beacon_found)
+		return;
+
+	chan->beacon_found = true;
+
+	chan_before.center_freq = chan->center_freq;
+	chan_before.flags = chan->flags;
+
+	if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
+	    !(chan->orig_flags & IEEE80211_CHAN_PASSIVE_SCAN)) {
 		chan->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN;
-		REG_DEBUG_BEACON_FLAG("active scanning");
+		channel_changed = true;
 	}
 
-	if (chan->flags & IEEE80211_CHAN_NO_IBSS) {
+	if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
+	    !(chan->orig_flags & IEEE80211_CHAN_NO_IBSS)) {
 		chan->flags &= ~IEEE80211_CHAN_NO_IBSS;
-		REG_DEBUG_BEACON_FLAG("beaconing");
+		channel_changed = true;
 	}
 
-	chan->beacon_found = true;
-#undef REG_DEBUG_BEACON_FLAG
+	if (channel_changed)
+		nl80211_send_beacon_hint_event(wiphy, &chan_before, chan);
 }
 
 /*
@@ -1155,6 +1178,93 @@ static void reg_process_beacons(struct wiphy *wiphy)
 	wiphy_update_beacon_reg(wiphy);
 }
 
+static bool is_ht40_not_allowed(struct ieee80211_channel *chan)
+{
+	if (!chan)
+		return true;
+	if (chan->flags & IEEE80211_CHAN_DISABLED)
+		return true;
+	/* This would happen when regulatory rules disallow HT40 completely */
+	if (IEEE80211_CHAN_NO_HT40 == (chan->flags & (IEEE80211_CHAN_NO_HT40)))
+		return true;
+	return false;
+}
+
+static void reg_process_ht_flags_channel(struct wiphy *wiphy,
+					 enum ieee80211_band band,
+					 unsigned int chan_idx)
+{
+	struct ieee80211_supported_band *sband;
+	struct ieee80211_channel *channel;
+	struct ieee80211_channel *channel_before = NULL, *channel_after = NULL;
+	unsigned int i;
+
+	assert_cfg80211_lock();
+
+	sband = wiphy->bands[band];
+	BUG_ON(chan_idx >= sband->n_channels);
+	channel = &sband->channels[chan_idx];
+
+	if (is_ht40_not_allowed(channel)) {
+		channel->flags |= IEEE80211_CHAN_NO_HT40;
+		return;
+	}
+
+	/*
+	 * We need to ensure the extension channels exist to
+	 * be able to use HT40- or HT40+, this finds them (or not)
+	 */
+	for (i = 0; i < sband->n_channels; i++) {
+		struct ieee80211_channel *c = &sband->channels[i];
+		if (c->center_freq == (channel->center_freq - 20))
+			channel_before = c;
+		if (c->center_freq == (channel->center_freq + 20))
+			channel_after = c;
+	}
+
+	/*
+	 * Please note that this assumes target bandwidth is 20 MHz,
+	 * if that ever changes we also need to change the below logic
+	 * to include that as well.
+	 */
+	if (is_ht40_not_allowed(channel_before))
+		channel->flags |= IEEE80211_CHAN_NO_HT40MINUS;
+	else
+		channel->flags &= ~IEEE80211_CHAN_NO_HT40MINUS;
+
+	if (is_ht40_not_allowed(channel_after))
+		channel->flags |= IEEE80211_CHAN_NO_HT40PLUS;
+	else
+		channel->flags &= ~IEEE80211_CHAN_NO_HT40PLUS;
+}
+
+static void reg_process_ht_flags_band(struct wiphy *wiphy,
+				      enum ieee80211_band band)
+{
+	unsigned int i;
+	struct ieee80211_supported_band *sband;
+
+	BUG_ON(!wiphy->bands[band]);
+	sband = wiphy->bands[band];
+
+	for (i = 0; i < sband->n_channels; i++)
+		reg_process_ht_flags_channel(wiphy, band, i);
+}
+
+static void reg_process_ht_flags(struct wiphy *wiphy)
+{
+	enum ieee80211_band band;
+
+	if (!wiphy)
+		return;
+
+	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
+		if (wiphy->bands[band])
+			reg_process_ht_flags_band(wiphy, band);
+	}
+
+}
+
 void wiphy_update_regulatory(struct wiphy *wiphy,
 			     enum nl80211_reg_initiator initiator)
 {
@@ -1168,6 +1278,7 @@ void wiphy_update_regulatory(struct wiphy *wiphy,
 	}
 out:
 	reg_process_beacons(wiphy);
+	reg_process_ht_flags(wiphy);
 	if (wiphy->reg_notifier)
 		wiphy->reg_notifier(wiphy, last_request);
 }
@@ -1178,9 +1289,11 @@ static void handle_channel_custom(struct wiphy *wiphy,
 				  const struct ieee80211_regdomain *regd)
 {
 	int r;
-	u32 max_bandwidth = 0;
+	u32 desired_bw_khz = MHZ_TO_KHZ(20);
+	u32 bw_flags = 0;
 	const struct ieee80211_reg_rule *reg_rule = NULL;
 	const struct ieee80211_power_rule *power_rule = NULL;
+	const struct ieee80211_freq_range *freq_range = NULL;
 	struct ieee80211_supported_band *sband;
 	struct ieee80211_channel *chan;
 
@@ -1190,8 +1303,11 @@ static void handle_channel_custom(struct wiphy *wiphy,
 	BUG_ON(chan_idx >= sband->n_channels);
 	chan = &sband->channels[chan_idx];
 
-	r = freq_reg_info_regd(wiphy, MHZ_TO_KHZ(chan->center_freq),
-		&max_bandwidth, &reg_rule, regd);
+	r = freq_reg_info_regd(wiphy,
+			       MHZ_TO_KHZ(chan->center_freq),
+			       desired_bw_khz,
+			       &reg_rule,
+			       regd);
 
 	if (r) {
 		chan->flags = IEEE80211_CHAN_DISABLED;
@@ -1199,10 +1315,14 @@ static void handle_channel_custom(struct wiphy *wiphy,
 	}
 
 	power_rule = &reg_rule->power_rule;
+	freq_range = &reg_rule->freq_range;
+
+	if (freq_range->max_bandwidth_khz < MHZ_TO_KHZ(40))
+		bw_flags = IEEE80211_CHAN_NO_HT40;
 
-	chan->flags |= map_regdom_flags(reg_rule->flags);
+	chan->flags |= map_regdom_flags(reg_rule->flags) | bw_flags;
 	chan->max_antenna_gain = (int) MBI_TO_DBI(power_rule->max_antenna_gain);
-	chan->max_bandwidth = KHZ_TO_MHZ(max_bandwidth);
+	chan->max_bandwidth = KHZ_TO_MHZ(desired_bw_khz);
 	chan->max_power = (int) MBM_TO_DBM(power_rule->max_eirp);
 }
 
@@ -1224,13 +1344,22 @@ void wiphy_apply_custom_regulatory(struct wiphy *wiphy,
 				   const struct ieee80211_regdomain *regd)
 {
 	enum ieee80211_band band;
+	unsigned int bands_set = 0;
 
 	mutex_lock(&cfg80211_mutex);
 	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
-		if (wiphy->bands[band])
-			handle_band_custom(wiphy, band, regd);
+		if (!wiphy->bands[band])
+			continue;
+		handle_band_custom(wiphy, band, regd);
+		bands_set++;
 	}
 	mutex_unlock(&cfg80211_mutex);
+
+	/*
+	 * no point in calling this if it won't have any effect
+	 * on your device's supportd bands.
+	 */
+	WARN_ON(!bands_set);
 }
 EXPORT_SYMBOL(wiphy_apply_custom_regulatory);
 
@@ -2000,7 +2129,12 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 		 * driver wanted to the wiphy to deal with conflicts
 		 */
 
-		BUG_ON(request_wiphy->regd);
+		/*
+		 * Userspace could have sent two replies with only
+		 * one kernel request.
+		 */
+		if (request_wiphy->regd)
+			return -EALREADY;
 
 		r = reg_copy_regd(&request_wiphy->regd, rd);
 		if (r)
@@ -2042,7 +2176,13 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 	 * the country IE rd with what CRDA believes that country should have
 	 */
 
-	BUG_ON(!country_ie_regdomain);
+	/*
+	 * Userspace could have sent two replies with only
+	 * one kernel request. By the second reply we would have
+	 * already processed and consumed the country_ie_regdomain.
+	 */
+	if (!country_ie_regdomain)
+		return -EALREADY;
 	BUG_ON(rd == country_ie_regdomain);
 
 	/*
@@ -2119,14 +2259,14 @@ void reg_device_remove(struct wiphy *wiphy)
 
 	assert_cfg80211_lock();
 
+	kfree(wiphy->regd);
+
 	if (last_request)
 		request_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
 
-	kfree(wiphy->regd);
-	if (!last_request || !request_wiphy)
-		return;
-	if (request_wiphy != wiphy)
+	if (!request_wiphy || request_wiphy != wiphy)
 		return;
+
 	last_request->wiphy_idx = WIPHY_IDX_STALE;
 	last_request->country_ie_env = ENVIRON_ANY;
 }
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 1f260c40b6ca..e95b638b919f 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -29,13 +29,14 @@ void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted)
 		goto out;
 
 	WARN_ON(request != wiphy_to_dev(request->wiphy)->scan_req);
-	wiphy_to_dev(request->wiphy)->scan_req = NULL;
 
 	if (aborted)
 		nl80211_send_scan_aborted(wiphy_to_dev(request->wiphy), dev);
 	else
 		nl80211_send_scan_done(wiphy_to_dev(request->wiphy), dev);
 
+	wiphy_to_dev(request->wiphy)->scan_req = NULL;
+
 #ifdef CONFIG_WIRELESS_EXT
 	if (!aborted) {
 		memset(&wrqu, 0, sizeof(wrqu));
@@ -377,18 +378,16 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev,
 			size_t used = dev->wiphy.bss_priv_size + sizeof(*res);
 			size_t ielen = res->pub.len_information_elements;
 
-			if (ksize(found) >= used + ielen) {
+			if (!found->ies_allocated && ksize(found) >= used + ielen) {
 				memcpy(found->pub.information_elements,
 				       res->pub.information_elements, ielen);
 				found->pub.len_information_elements = ielen;
 			} else {
 				u8 *ies = found->pub.information_elements;
 
-				if (found->ies_allocated) {
-					if (ksize(ies) < ielen)
-						ies = krealloc(ies, ielen,
-							       GFP_ATOMIC);
-				} else
+				if (found->ies_allocated)
+					ies = krealloc(ies, ielen, GFP_ATOMIC);
+				else
 					ies = kmalloc(ielen, GFP_ATOMIC);
 
 				if (ies) {
@@ -415,6 +414,55 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev,
 	return found;
 }
 
+struct cfg80211_bss*
+cfg80211_inform_bss(struct wiphy *wiphy,
+		    struct ieee80211_channel *channel,
+		    const u8 *bssid,
+		    u64 timestamp, u16 capability, u16 beacon_interval,
+		    const u8 *ie, size_t ielen,
+		    s32 signal, gfp_t gfp)
+{
+	struct cfg80211_internal_bss *res;
+	size_t privsz;
+
+	if (WARN_ON(!wiphy))
+		return NULL;
+
+	privsz = wiphy->bss_priv_size;
+
+	if (WARN_ON(wiphy->signal_type == NL80211_BSS_SIGNAL_UNSPEC &&
+			(signal < 0 || signal > 100)))
+		return NULL;
+
+	res = kzalloc(sizeof(*res) + privsz + ielen, gfp);
+	if (!res)
+		return NULL;
+
+	memcpy(res->pub.bssid, bssid, ETH_ALEN);
+	res->pub.channel = channel;
+	res->pub.signal = signal;
+	res->pub.tsf = timestamp;
+	res->pub.beacon_interval = beacon_interval;
+	res->pub.capability = capability;
+	/* point to after the private area */
+	res->pub.information_elements = (u8 *)res + sizeof(*res) + privsz;
+	memcpy(res->pub.information_elements, ie, ielen);
+	res->pub.len_information_elements = ielen;
+
+	kref_init(&res->ref);
+
+	res = cfg80211_bss_update(wiphy_to_dev(wiphy), res, 0);
+	if (!res)
+		return NULL;
+
+	if (res->pub.capability & WLAN_CAPABILITY_ESS)
+		regulatory_hint_found_beacon(wiphy, channel, gfp);
+
+	/* cfg80211_bss_update gives us a referenced result */
+	return &res->pub;
+}
+EXPORT_SYMBOL(cfg80211_inform_bss);
+
 struct cfg80211_bss *
 cfg80211_inform_bss_frame(struct wiphy *wiphy,
 			  struct ieee80211_channel *channel,
@@ -605,7 +653,7 @@ int cfg80211_wext_siwscan(struct net_device *dev,
 	cfg80211_put_dev(rdev);
 	return err;
 }
-EXPORT_SYMBOL(cfg80211_wext_siwscan);
+EXPORT_SYMBOL_GPL(cfg80211_wext_siwscan);
 
 static void ieee80211_scan_add_ies(struct iw_request_info *info,
 				   struct cfg80211_bss *bss,
@@ -914,5 +962,5 @@ int cfg80211_wext_giwscan(struct net_device *dev,
 	cfg80211_put_dev(rdev);
 	return res;
 }
-EXPORT_SYMBOL(cfg80211_wext_giwscan);
+EXPORT_SYMBOL_GPL(cfg80211_wext_giwscan);
 #endif
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 487cdd9bcffc..25550692dda6 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -1,10 +1,12 @@
 /*
  * Wireless utility functions
  *
- * Copyright 2007	Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2007-2009	Johannes Berg <johannes@sipsolutions.net>
  */
-#include <net/wireless.h>
-#include <asm/bitops.h>
+#include <linux/bitops.h>
+#include <linux/etherdevice.h>
+#include <net/cfg80211.h>
+#include <net/ip.h>
 #include "core.h"
 
 struct ieee80211_rate *
@@ -138,3 +140,365 @@ void ieee80211_set_bitrate_flags(struct wiphy *wiphy)
 		if (wiphy->bands[band])
 			set_mandatory_flags_band(wiphy->bands[band], band);
 }
+
+int cfg80211_validate_key_settings(struct key_params *params, int key_idx,
+				   const u8 *mac_addr)
+{
+	if (key_idx > 5)
+		return -EINVAL;
+
+	/*
+	 * Disallow pairwise keys with non-zero index unless it's WEP
+	 * (because current deployments use pairwise WEP keys with
+	 * non-zero indizes but 802.11i clearly specifies to use zero)
+	 */
+	if (mac_addr && key_idx &&
+	    params->cipher != WLAN_CIPHER_SUITE_WEP40 &&
+	    params->cipher != WLAN_CIPHER_SUITE_WEP104)
+		return -EINVAL;
+
+	switch (params->cipher) {
+	case WLAN_CIPHER_SUITE_WEP40:
+		if (params->key_len != WLAN_KEY_LEN_WEP40)
+			return -EINVAL;
+		break;
+	case WLAN_CIPHER_SUITE_TKIP:
+		if (params->key_len != WLAN_KEY_LEN_TKIP)
+			return -EINVAL;
+		break;
+	case WLAN_CIPHER_SUITE_CCMP:
+		if (params->key_len != WLAN_KEY_LEN_CCMP)
+			return -EINVAL;
+		break;
+	case WLAN_CIPHER_SUITE_WEP104:
+		if (params->key_len != WLAN_KEY_LEN_WEP104)
+			return -EINVAL;
+		break;
+	case WLAN_CIPHER_SUITE_AES_CMAC:
+		if (params->key_len != WLAN_KEY_LEN_AES_CMAC)
+			return -EINVAL;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (params->seq) {
+		switch (params->cipher) {
+		case WLAN_CIPHER_SUITE_WEP40:
+		case WLAN_CIPHER_SUITE_WEP104:
+			/* These ciphers do not use key sequence */
+			return -EINVAL;
+		case WLAN_CIPHER_SUITE_TKIP:
+		case WLAN_CIPHER_SUITE_CCMP:
+		case WLAN_CIPHER_SUITE_AES_CMAC:
+			if (params->seq_len != 6)
+				return -EINVAL;
+			break;
+		}
+	}
+
+	return 0;
+}
+
+/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */
+/* Ethernet-II snap header (RFC1042 for most EtherTypes) */
+const unsigned char rfc1042_header[] __aligned(2) =
+	{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
+EXPORT_SYMBOL(rfc1042_header);
+
+/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
+const unsigned char bridge_tunnel_header[] __aligned(2) =
+	{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
+EXPORT_SYMBOL(bridge_tunnel_header);
+
+unsigned int ieee80211_hdrlen(__le16 fc)
+{
+	unsigned int hdrlen = 24;
+
+	if (ieee80211_is_data(fc)) {
+		if (ieee80211_has_a4(fc))
+			hdrlen = 30;
+		if (ieee80211_is_data_qos(fc))
+			hdrlen += IEEE80211_QOS_CTL_LEN;
+		goto out;
+	}
+
+	if (ieee80211_is_ctl(fc)) {
+		/*
+		 * ACK and CTS are 10 bytes, all others 16. To see how
+		 * to get this condition consider
+		 *   subtype mask:   0b0000000011110000 (0x00F0)
+		 *   ACK subtype:    0b0000000011010000 (0x00D0)
+		 *   CTS subtype:    0b0000000011000000 (0x00C0)
+		 *   bits that matter:         ^^^      (0x00E0)
+		 *   value of those: 0b0000000011000000 (0x00C0)
+		 */
+		if ((fc & cpu_to_le16(0x00E0)) == cpu_to_le16(0x00C0))
+			hdrlen = 10;
+		else
+			hdrlen = 16;
+	}
+out:
+	return hdrlen;
+}
+EXPORT_SYMBOL(ieee80211_hdrlen);
+
+unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb)
+{
+	const struct ieee80211_hdr *hdr =
+			(const struct ieee80211_hdr *)skb->data;
+	unsigned int hdrlen;
+
+	if (unlikely(skb->len < 10))
+		return 0;
+	hdrlen = ieee80211_hdrlen(hdr->frame_control);
+	if (unlikely(hdrlen > skb->len))
+		return 0;
+	return hdrlen;
+}
+EXPORT_SYMBOL(ieee80211_get_hdrlen_from_skb);
+
+static int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
+{
+	int ae = meshhdr->flags & MESH_FLAGS_AE;
+	/* 7.1.3.5a.2 */
+	switch (ae) {
+	case 0:
+		return 6;
+	case 1:
+		return 12;
+	case 2:
+		return 18;
+	case 3:
+		return 24;
+	default:
+		return 6;
+	}
+}
+
+int ieee80211_data_to_8023(struct sk_buff *skb, u8 *addr,
+			   enum nl80211_iftype iftype)
+{
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+	u16 hdrlen, ethertype;
+	u8 *payload;
+	u8 dst[ETH_ALEN];
+	u8 src[ETH_ALEN] __aligned(2);
+
+	if (unlikely(!ieee80211_is_data_present(hdr->frame_control)))
+		return -1;
+
+	hdrlen = ieee80211_hdrlen(hdr->frame_control);
+
+	/* convert IEEE 802.11 header + possible LLC headers into Ethernet
+	 * header
+	 * IEEE 802.11 address fields:
+	 * ToDS FromDS Addr1 Addr2 Addr3 Addr4
+	 *   0     0   DA    SA    BSSID n/a
+	 *   0     1   DA    BSSID SA    n/a
+	 *   1     0   BSSID SA    DA    n/a
+	 *   1     1   RA    TA    DA    SA
+	 */
+	memcpy(dst, ieee80211_get_DA(hdr), ETH_ALEN);
+	memcpy(src, ieee80211_get_SA(hdr), ETH_ALEN);
+
+	switch (hdr->frame_control &
+		cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) {
+	case cpu_to_le16(IEEE80211_FCTL_TODS):
+		if (unlikely(iftype != NL80211_IFTYPE_AP &&
+			     iftype != NL80211_IFTYPE_AP_VLAN))
+			return -1;
+		break;
+	case cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS):
+		if (unlikely(iftype != NL80211_IFTYPE_WDS &&
+			     iftype != NL80211_IFTYPE_MESH_POINT))
+			return -1;
+		if (iftype == NL80211_IFTYPE_MESH_POINT) {
+			struct ieee80211s_hdr *meshdr =
+				(struct ieee80211s_hdr *) (skb->data + hdrlen);
+			hdrlen += ieee80211_get_mesh_hdrlen(meshdr);
+			if (meshdr->flags & MESH_FLAGS_AE_A5_A6) {
+				memcpy(dst, meshdr->eaddr1, ETH_ALEN);
+				memcpy(src, meshdr->eaddr2, ETH_ALEN);
+			}
+		}
+		break;
+	case cpu_to_le16(IEEE80211_FCTL_FROMDS):
+		if (iftype != NL80211_IFTYPE_STATION ||
+		    (is_multicast_ether_addr(dst) &&
+		     !compare_ether_addr(src, addr)))
+			return -1;
+		break;
+	case cpu_to_le16(0):
+		if (iftype != NL80211_IFTYPE_ADHOC)
+			return -1;
+		break;
+	}
+
+	if (unlikely(skb->len - hdrlen < 8))
+		return -1;
+
+	payload = skb->data + hdrlen;
+	ethertype = (payload[6] << 8) | payload[7];
+
+	if (likely((compare_ether_addr(payload, rfc1042_header) == 0 &&
+		    ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
+		   compare_ether_addr(payload, bridge_tunnel_header) == 0)) {
+		/* remove RFC1042 or Bridge-Tunnel encapsulation and
+		 * replace EtherType */
+		skb_pull(skb, hdrlen + 6);
+		memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN);
+		memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN);
+	} else {
+		struct ethhdr *ehdr;
+		__be16 len;
+
+		skb_pull(skb, hdrlen);
+		len = htons(skb->len);
+		ehdr = (struct ethhdr *) skb_push(skb, sizeof(struct ethhdr));
+		memcpy(ehdr->h_dest, dst, ETH_ALEN);
+		memcpy(ehdr->h_source, src, ETH_ALEN);
+		ehdr->h_proto = len;
+	}
+	return 0;
+}
+EXPORT_SYMBOL(ieee80211_data_to_8023);
+
+int ieee80211_data_from_8023(struct sk_buff *skb, u8 *addr,
+			     enum nl80211_iftype iftype, u8 *bssid, bool qos)
+{
+	struct ieee80211_hdr hdr;
+	u16 hdrlen, ethertype;
+	__le16 fc;
+	const u8 *encaps_data;
+	int encaps_len, skip_header_bytes;
+	int nh_pos, h_pos;
+	int head_need;
+
+	if (unlikely(skb->len < ETH_HLEN))
+		return -EINVAL;
+
+	nh_pos = skb_network_header(skb) - skb->data;
+	h_pos = skb_transport_header(skb) - skb->data;
+
+	/* convert Ethernet header to proper 802.11 header (based on
+	 * operation mode) */
+	ethertype = (skb->data[12] << 8) | skb->data[13];
+	fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
+
+	switch (iftype) {
+	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_AP_VLAN:
+		fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
+		/* DA BSSID SA */
+		memcpy(hdr.addr1, skb->data, ETH_ALEN);
+		memcpy(hdr.addr2, addr, ETH_ALEN);
+		memcpy(hdr.addr3, skb->data + ETH_ALEN, ETH_ALEN);
+		hdrlen = 24;
+		break;
+	case NL80211_IFTYPE_STATION:
+		fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
+		/* BSSID SA DA */
+		memcpy(hdr.addr1, bssid, ETH_ALEN);
+		memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
+		memcpy(hdr.addr3, skb->data, ETH_ALEN);
+		hdrlen = 24;
+		break;
+	case NL80211_IFTYPE_ADHOC:
+		/* DA SA BSSID */
+		memcpy(hdr.addr1, skb->data, ETH_ALEN);
+		memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
+		memcpy(hdr.addr3, bssid, ETH_ALEN);
+		hdrlen = 24;
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	if (qos) {
+		fc |= cpu_to_le16(IEEE80211_STYPE_QOS_DATA);
+		hdrlen += 2;
+	}
+
+	hdr.frame_control = fc;
+	hdr.duration_id = 0;
+	hdr.seq_ctrl = 0;
+
+	skip_header_bytes = ETH_HLEN;
+	if (ethertype == ETH_P_AARP || ethertype == ETH_P_IPX) {
+		encaps_data = bridge_tunnel_header;
+		encaps_len = sizeof(bridge_tunnel_header);
+		skip_header_bytes -= 2;
+	} else if (ethertype > 0x600) {
+		encaps_data = rfc1042_header;
+		encaps_len = sizeof(rfc1042_header);
+		skip_header_bytes -= 2;
+	} else {
+		encaps_data = NULL;
+		encaps_len = 0;
+	}
+
+	skb_pull(skb, skip_header_bytes);
+	nh_pos -= skip_header_bytes;
+	h_pos -= skip_header_bytes;
+
+	head_need = hdrlen + encaps_len - skb_headroom(skb);
+
+	if (head_need > 0 || skb_cloned(skb)) {
+		head_need = max(head_need, 0);
+		if (head_need)
+			skb_orphan(skb);
+
+		if (pskb_expand_head(skb, head_need, 0, GFP_ATOMIC)) {
+			printk(KERN_ERR "failed to reallocate Tx buffer\n");
+			return -ENOMEM;
+		}
+		skb->truesize += head_need;
+	}
+
+	if (encaps_data) {
+		memcpy(skb_push(skb, encaps_len), encaps_data, encaps_len);
+		nh_pos += encaps_len;
+		h_pos += encaps_len;
+	}
+
+	memcpy(skb_push(skb, hdrlen), &hdr, hdrlen);
+
+	nh_pos += hdrlen;
+	h_pos += hdrlen;
+
+	/* Update skb pointers to various headers since this modified frame
+	 * is going to go through Linux networking code that may potentially
+	 * need things like pointer to IP header. */
+	skb_set_mac_header(skb, 0);
+	skb_set_network_header(skb, nh_pos);
+	skb_set_transport_header(skb, h_pos);
+
+	return 0;
+}
+EXPORT_SYMBOL(ieee80211_data_from_8023);
+
+/* Given a data frame determine the 802.1p/1d tag to use. */
+unsigned int cfg80211_classify8021d(struct sk_buff *skb)
+{
+	unsigned int dscp;
+
+	/* skb->priority values from 256->263 are magic values to
+	 * directly indicate a specific 802.1d priority.  This is used
+	 * to allow 802.1d priority to be passed directly in from VLAN
+	 * tags, etc.
+	 */
+	if (skb->priority >= 256 && skb->priority <= 263)
+		return skb->priority - 256;
+
+	switch (skb->protocol) {
+	case htons(ETH_P_IP):
+		dscp = ip_hdr(skb)->tos & 0xfc;
+		break;
+	default:
+		return 0;
+	}
+
+	return dscp >> 5;
+}
+EXPORT_SYMBOL(cfg80211_classify8021d);
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index 0fd1db6e95bb..d030c5315672 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -5,13 +5,14 @@
  * into cfg80211, when that happens all the exports here go away and
  * we directly assign the wireless handlers of wireless interfaces.
  *
- * Copyright 2008	Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2008-2009	Johannes Berg <johannes@sipsolutions.net>
  */
 
 #include <linux/wireless.h>
 #include <linux/nl80211.h>
+#include <linux/if_arp.h>
+#include <linux/etherdevice.h>
 #include <net/iw_handler.h>
-#include <net/wireless.h>
 #include <net/cfg80211.h>
 #include "core.h"
 
@@ -57,7 +58,7 @@ int cfg80211_wext_giwname(struct net_device *dev,
 
 	return 0;
 }
-EXPORT_SYMBOL(cfg80211_wext_giwname);
+EXPORT_SYMBOL_GPL(cfg80211_wext_giwname);
 
 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
 			  u32 *mode, char *extra)
@@ -108,7 +109,7 @@ int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
 
 	return ret;
 }
-EXPORT_SYMBOL(cfg80211_wext_siwmode);
+EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode);
 
 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
 			  u32 *mode, char *extra)
@@ -143,7 +144,7 @@ int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
 	}
 	return 0;
 }
-EXPORT_SYMBOL(cfg80211_wext_giwmode);
+EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode);
 
 
 int cfg80211_wext_giwrange(struct net_device *dev,
@@ -206,7 +207,6 @@ int cfg80211_wext_giwrange(struct net_device *dev,
 	range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
 			  IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
 
-
 	for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
 		int i;
 		struct ieee80211_supported_band *sband;
@@ -240,4 +240,590 @@ int cfg80211_wext_giwrange(struct net_device *dev,
 
 	return 0;
 }
-EXPORT_SYMBOL(cfg80211_wext_giwrange);
+EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange);
+
+int cfg80211_wext_siwmlme(struct net_device *dev,
+			  struct iw_request_info *info,
+			  struct iw_point *data, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct iw_mlme *mlme = (struct iw_mlme *)extra;
+	struct cfg80211_registered_device *rdev;
+	union {
+		struct cfg80211_disassoc_request disassoc;
+		struct cfg80211_deauth_request deauth;
+	} cmd;
+
+	if (!wdev)
+		return -EOPNOTSUPP;
+
+	rdev = wiphy_to_dev(wdev->wiphy);
+
+	if (wdev->iftype != NL80211_IFTYPE_STATION)
+		return -EINVAL;
+
+	if (mlme->addr.sa_family != ARPHRD_ETHER)
+		return -EINVAL;
+
+	memset(&cmd, 0, sizeof(cmd));
+
+	switch (mlme->cmd) {
+	case IW_MLME_DEAUTH:
+		if (!rdev->ops->deauth)
+			return -EOPNOTSUPP;
+		cmd.deauth.peer_addr = mlme->addr.sa_data;
+		cmd.deauth.reason_code = mlme->reason_code;
+		return rdev->ops->deauth(wdev->wiphy, dev, &cmd.deauth);
+	case IW_MLME_DISASSOC:
+		if (!rdev->ops->disassoc)
+			return -EOPNOTSUPP;
+		cmd.disassoc.peer_addr = mlme->addr.sa_data;
+		cmd.disassoc.reason_code = mlme->reason_code;
+		return rdev->ops->disassoc(wdev->wiphy, dev, &cmd.disassoc);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_siwmlme);
+
+
+/**
+ * cfg80211_wext_freq - get wext frequency for non-"auto"
+ * @wiphy: the wiphy
+ * @freq: the wext freq encoding
+ *
+ * Returns a channel, %NULL for auto, or an ERR_PTR for errors!
+ */
+struct ieee80211_channel *cfg80211_wext_freq(struct wiphy *wiphy,
+					     struct iw_freq *freq)
+{
+	struct ieee80211_channel *chan;
+	int f;
+
+	/*
+	 * Parse frequency - return NULL for auto and
+	 * -EINVAL for impossible things.
+	 */
+	if (freq->e == 0) {
+		if (freq->m < 0)
+			return NULL;
+		f = ieee80211_channel_to_frequency(freq->m);
+	} else {
+		int i, div = 1000000;
+		for (i = 0; i < freq->e; i++)
+			div /= 10;
+		if (div <= 0)
+			return ERR_PTR(-EINVAL);
+		f = freq->m / div;
+	}
+
+	/*
+	 * Look up channel struct and return -EINVAL when
+	 * it cannot be found.
+	 */
+	chan = ieee80211_get_channel(wiphy, f);
+	if (!chan)
+		return ERR_PTR(-EINVAL);
+	return chan;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_freq);
+
+int cfg80211_wext_siwrts(struct net_device *dev,
+			 struct iw_request_info *info,
+			 struct iw_param *rts, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	u32 orts = wdev->wiphy->rts_threshold;
+	int err;
+
+	if (rts->disabled || !rts->fixed)
+		wdev->wiphy->rts_threshold = (u32) -1;
+	else if (rts->value < 0)
+		return -EINVAL;
+	else
+		wdev->wiphy->rts_threshold = rts->value;
+
+	err = rdev->ops->set_wiphy_params(wdev->wiphy,
+					  WIPHY_PARAM_RTS_THRESHOLD);
+	if (err)
+		wdev->wiphy->rts_threshold = orts;
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts);
+
+int cfg80211_wext_giwrts(struct net_device *dev,
+			 struct iw_request_info *info,
+			 struct iw_param *rts, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+
+	rts->value = wdev->wiphy->rts_threshold;
+	rts->disabled = rts->value == (u32) -1;
+	rts->fixed = 1;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts);
+
+int cfg80211_wext_siwfrag(struct net_device *dev,
+			  struct iw_request_info *info,
+			  struct iw_param *frag, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	u32 ofrag = wdev->wiphy->frag_threshold;
+	int err;
+
+	if (frag->disabled || !frag->fixed)
+		wdev->wiphy->frag_threshold = (u32) -1;
+	else if (frag->value < 256)
+		return -EINVAL;
+	else {
+		/* Fragment length must be even, so strip LSB. */
+		wdev->wiphy->frag_threshold = frag->value & ~0x1;
+	}
+
+	err = rdev->ops->set_wiphy_params(wdev->wiphy,
+					  WIPHY_PARAM_FRAG_THRESHOLD);
+	if (err)
+		wdev->wiphy->frag_threshold = ofrag;
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag);
+
+int cfg80211_wext_giwfrag(struct net_device *dev,
+			  struct iw_request_info *info,
+			  struct iw_param *frag, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+
+	frag->value = wdev->wiphy->frag_threshold;
+	frag->disabled = frag->value == (u32) -1;
+	frag->fixed = 1;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag);
+
+int cfg80211_wext_siwretry(struct net_device *dev,
+			   struct iw_request_info *info,
+			   struct iw_param *retry, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	u32 changed = 0;
+	u8 olong = wdev->wiphy->retry_long;
+	u8 oshort = wdev->wiphy->retry_short;
+	int err;
+
+	if (retry->disabled ||
+	    (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
+		return -EINVAL;
+
+	if (retry->flags & IW_RETRY_LONG) {
+		wdev->wiphy->retry_long = retry->value;
+		changed |= WIPHY_PARAM_RETRY_LONG;
+	} else if (retry->flags & IW_RETRY_SHORT) {
+		wdev->wiphy->retry_short = retry->value;
+		changed |= WIPHY_PARAM_RETRY_SHORT;
+	} else {
+		wdev->wiphy->retry_short = retry->value;
+		wdev->wiphy->retry_long = retry->value;
+		changed |= WIPHY_PARAM_RETRY_LONG;
+		changed |= WIPHY_PARAM_RETRY_SHORT;
+	}
+
+	if (!changed)
+		return 0;
+
+	err = rdev->ops->set_wiphy_params(wdev->wiphy, changed);
+	if (err) {
+		wdev->wiphy->retry_short = oshort;
+		wdev->wiphy->retry_long = olong;
+	}
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_siwretry);
+
+int cfg80211_wext_giwretry(struct net_device *dev,
+			   struct iw_request_info *info,
+			   struct iw_param *retry, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+
+	retry->disabled = 0;
+
+	if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) {
+		/*
+		 * First return short value, iwconfig will ask long value
+		 * later if needed
+		 */
+		retry->flags |= IW_RETRY_LIMIT;
+		retry->value = wdev->wiphy->retry_short;
+		if (wdev->wiphy->retry_long != wdev->wiphy->retry_short)
+			retry->flags |= IW_RETRY_LONG;
+
+		return 0;
+	}
+
+	if (retry->flags & IW_RETRY_LONG) {
+		retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
+		retry->value = wdev->wiphy->retry_long;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry);
+
+static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
+				   struct net_device *dev, const u8 *addr,
+				   bool remove, bool tx_key, int idx,
+				   struct key_params *params)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	int err;
+
+	if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
+		if (!rdev->ops->set_default_mgmt_key)
+			return -EOPNOTSUPP;
+
+		if (idx < 4 || idx > 5)
+			return -EINVAL;
+	} else if (idx < 0 || idx > 3)
+		return -EINVAL;
+
+	if (remove) {
+		err = rdev->ops->del_key(&rdev->wiphy, dev, idx, addr);
+		if (!err) {
+			if (idx == wdev->wext.default_key)
+				wdev->wext.default_key = -1;
+			else if (idx == wdev->wext.default_mgmt_key)
+				wdev->wext.default_mgmt_key = -1;
+		}
+		/*
+		 * Applications using wireless extensions expect to be
+		 * able to delete keys that don't exist, so allow that.
+		 */
+		if (err == -ENOENT)
+			return 0;
+
+		return err;
+	} else {
+		if (addr)
+			tx_key = false;
+
+		if (cfg80211_validate_key_settings(params, idx, addr))
+			return -EINVAL;
+
+		err = rdev->ops->add_key(&rdev->wiphy, dev, idx, addr, params);
+		if (err)
+			return err;
+
+		if (tx_key || (!addr && wdev->wext.default_key == -1)) {
+			err = rdev->ops->set_default_key(&rdev->wiphy,
+							 dev, idx);
+			if (!err)
+				wdev->wext.default_key = idx;
+			return err;
+		}
+
+		if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
+		    (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
+			err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
+							      dev, idx);
+			if (!err)
+				wdev->wext.default_mgmt_key = idx;
+			return err;
+		}
+
+		return 0;
+	}
+}
+
+int cfg80211_wext_siwencode(struct net_device *dev,
+			    struct iw_request_info *info,
+			    struct iw_point *erq, char *keybuf)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	int idx, err;
+	bool remove = false;
+	struct key_params params;
+
+	/* no use -- only MFP (set_default_mgmt_key) is optional */
+	if (!rdev->ops->del_key ||
+	    !rdev->ops->add_key ||
+	    !rdev->ops->set_default_key)
+		return -EOPNOTSUPP;
+
+	idx = erq->flags & IW_ENCODE_INDEX;
+	if (idx == 0) {
+		idx = wdev->wext.default_key;
+		if (idx < 0)
+			idx = 0;
+	} else if (idx < 1 || idx > 4)
+		return -EINVAL;
+	else
+		idx--;
+
+	if (erq->flags & IW_ENCODE_DISABLED)
+		remove = true;
+	else if (erq->length == 0) {
+		/* No key data - just set the default TX key index */
+		err = rdev->ops->set_default_key(&rdev->wiphy, dev, idx);
+		if (!err)
+			wdev->wext.default_key = idx;
+		return err;
+	}
+
+	memset(&params, 0, sizeof(params));
+	params.key = keybuf;
+	params.key_len = erq->length;
+	if (erq->length == 5)
+		params.cipher = WLAN_CIPHER_SUITE_WEP40;
+	else if (erq->length == 13)
+		params.cipher = WLAN_CIPHER_SUITE_WEP104;
+	else if (!remove)
+		return -EINVAL;
+
+	return cfg80211_set_encryption(rdev, dev, NULL, remove,
+				       wdev->wext.default_key == -1,
+				       idx, &params);
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_siwencode);
+
+int cfg80211_wext_siwencodeext(struct net_device *dev,
+			       struct iw_request_info *info,
+			       struct iw_point *erq, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
+	const u8 *addr;
+	int idx;
+	bool remove = false;
+	struct key_params params;
+	u32 cipher;
+
+	/* no use -- only MFP (set_default_mgmt_key) is optional */
+	if (!rdev->ops->del_key ||
+	    !rdev->ops->add_key ||
+	    !rdev->ops->set_default_key)
+		return -EOPNOTSUPP;
+
+	switch (ext->alg) {
+	case IW_ENCODE_ALG_NONE:
+		remove = true;
+		cipher = 0;
+		break;
+	case IW_ENCODE_ALG_WEP:
+		if (ext->key_len == 5)
+			cipher = WLAN_CIPHER_SUITE_WEP40;
+		else if (ext->key_len == 13)
+			cipher = WLAN_CIPHER_SUITE_WEP104;
+		else
+			return -EINVAL;
+		break;
+	case IW_ENCODE_ALG_TKIP:
+		cipher = WLAN_CIPHER_SUITE_TKIP;
+		break;
+	case IW_ENCODE_ALG_CCMP:
+		cipher = WLAN_CIPHER_SUITE_CCMP;
+		break;
+	case IW_ENCODE_ALG_AES_CMAC:
+		cipher = WLAN_CIPHER_SUITE_AES_CMAC;
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	if (erq->flags & IW_ENCODE_DISABLED)
+		remove = true;
+
+	idx = erq->flags & IW_ENCODE_INDEX;
+	if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
+		if (idx < 4 || idx > 5) {
+			idx = wdev->wext.default_mgmt_key;
+			if (idx < 0)
+				return -EINVAL;
+		} else
+			idx--;
+	} else {
+		if (idx < 1 || idx > 4) {
+			idx = wdev->wext.default_key;
+			if (idx < 0)
+				return -EINVAL;
+		} else
+			idx--;
+	}
+
+	addr = ext->addr.sa_data;
+	if (is_broadcast_ether_addr(addr))
+		addr = NULL;
+
+	memset(&params, 0, sizeof(params));
+	params.key = ext->key;
+	params.key_len = ext->key_len;
+	params.cipher = cipher;
+
+	if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
+		params.seq = ext->rx_seq;
+		params.seq_len = 6;
+	}
+
+	return cfg80211_set_encryption(
+			rdev, dev, addr, remove,
+			ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
+			idx, &params);
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_siwencodeext);
+
+struct giwencode_cookie {
+	size_t buflen;
+	char *keybuf;
+};
+
+static void giwencode_get_key_cb(void *cookie, struct key_params *params)
+{
+	struct giwencode_cookie *data = cookie;
+
+	if (!params->key) {
+		data->buflen = 0;
+		return;
+	}
+
+	data->buflen = min_t(size_t, data->buflen, params->key_len);
+	memcpy(data->keybuf, params->key, data->buflen);
+}
+
+int cfg80211_wext_giwencode(struct net_device *dev,
+			    struct iw_request_info *info,
+			    struct iw_point *erq, char *keybuf)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	int idx, err;
+	struct giwencode_cookie data = {
+		.keybuf = keybuf,
+		.buflen = erq->length,
+	};
+
+	if (!rdev->ops->get_key)
+		return -EOPNOTSUPP;
+
+	idx = erq->flags & IW_ENCODE_INDEX;
+	if (idx == 0) {
+		idx = wdev->wext.default_key;
+		if (idx < 0)
+			idx = 0;
+	} else if (idx < 1 || idx > 4)
+		return -EINVAL;
+	else
+		idx--;
+
+	erq->flags = idx + 1;
+
+	err = rdev->ops->get_key(&rdev->wiphy, dev, idx, NULL, &data,
+				 giwencode_get_key_cb);
+	if (!err) {
+		erq->length = data.buflen;
+		erq->flags |= IW_ENCODE_ENABLED;
+		return 0;
+	}
+
+	if (err == -ENOENT) {
+		erq->flags |= IW_ENCODE_DISABLED;
+		erq->length = 0;
+		return 0;
+	}
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_giwencode);
+
+int cfg80211_wext_siwtxpower(struct net_device *dev,
+			     struct iw_request_info *info,
+			     union iwreq_data *data, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	enum tx_power_setting type;
+	int dbm = 0;
+
+	if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
+		return -EINVAL;
+	if (data->txpower.flags & IW_TXPOW_RANGE)
+		return -EINVAL;
+
+	if (!rdev->ops->set_tx_power)
+		return -EOPNOTSUPP;
+
+	/* only change when not disabling */
+	if (!data->txpower.disabled) {
+		rfkill_set_sw_state(rdev->rfkill, false);
+
+		if (data->txpower.fixed) {
+			/*
+			 * wext doesn't support negative values, see
+			 * below where it's for automatic
+			 */
+			if (data->txpower.value < 0)
+				return -EINVAL;
+			dbm = data->txpower.value;
+			type = TX_POWER_FIXED;
+			/* TODO: do regulatory check! */
+		} else {
+			/*
+			 * Automatic power level setting, max being the value
+			 * passed in from userland.
+			 */
+			if (data->txpower.value < 0) {
+				type = TX_POWER_AUTOMATIC;
+			} else {
+				dbm = data->txpower.value;
+				type = TX_POWER_LIMITED;
+			}
+		}
+	} else {
+		rfkill_set_sw_state(rdev->rfkill, true);
+		schedule_work(&rdev->rfkill_sync);
+		return 0;
+	}
+
+	return rdev->ops->set_tx_power(wdev->wiphy, type, dbm);;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_siwtxpower);
+
+int cfg80211_wext_giwtxpower(struct net_device *dev,
+			     struct iw_request_info *info,
+			     union iwreq_data *data, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	int err, val;
+
+	if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
+		return -EINVAL;
+	if (data->txpower.flags & IW_TXPOW_RANGE)
+		return -EINVAL;
+
+	if (!rdev->ops->get_tx_power)
+		return -EOPNOTSUPP;
+
+	err = rdev->ops->get_tx_power(wdev->wiphy, &val);
+	if (err)
+		return err;
+
+	/* well... oh well */
+	data->txpower.fixed = 1;
+	data->txpower.disabled = rfkill_blocked(rdev->rfkill);
+	data->txpower.value = val;
+	data->txpower.flags = IW_TXPOW_DBM;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_giwtxpower);
diff --git a/net/wireless/wext.c b/net/wireless/wext.c
index 0e59f9ae9b81..252c2010c2e2 100644
--- a/net/wireless/wext.c
+++ b/net/wireless/wext.c
@@ -636,8 +636,10 @@ static void wireless_seq_printf_stats(struct seq_file *seq,
 /*
  * Print info for /proc/net/wireless (print all entries)
  */
-static int wireless_seq_show(struct seq_file *seq, void *v)
+static int wireless_dev_seq_show(struct seq_file *seq, void *v)
 {
+	might_sleep();
+
 	if (v == SEQ_START_TOKEN)
 		seq_printf(seq, "Inter-| sta-|   Quality        |   Discarded "
 				"packets               | Missed | WE\n"
@@ -649,14 +651,46 @@ static int wireless_seq_show(struct seq_file *seq, void *v)
 	return 0;
 }
 
+static void *wireless_dev_seq_start(struct seq_file *seq, loff_t *pos)
+{
+	struct net *net = seq_file_net(seq);
+	loff_t off;
+	struct net_device *dev;
+
+	rtnl_lock();
+	if (!*pos)
+		return SEQ_START_TOKEN;
+
+	off = 1;
+	for_each_netdev(net, dev)
+		if (off++ == *pos)
+			return dev;
+	return NULL;
+}
+
+static void *wireless_dev_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+	struct net *net = seq_file_net(seq);
+
+	++*pos;
+
+	return v == SEQ_START_TOKEN ?
+		first_net_device(net) : next_net_device(v);
+}
+
+static void wireless_dev_seq_stop(struct seq_file *seq, void *v)
+{
+	rtnl_unlock();
+}
+
 static const struct seq_operations wireless_seq_ops = {
-	.start = dev_seq_start,
-	.next  = dev_seq_next,
-	.stop  = dev_seq_stop,
-	.show  = wireless_seq_show,
+	.start = wireless_dev_seq_start,
+	.next  = wireless_dev_seq_next,
+	.stop  = wireless_dev_seq_stop,
+	.show  = wireless_dev_seq_show,
 };
 
-static int wireless_seq_open(struct inode *inode, struct file *file)
+static int seq_open_wireless(struct inode *inode, struct file *file)
 {
 	return seq_open_net(inode, file, &wireless_seq_ops,
 			    sizeof(struct seq_net_private));
@@ -664,7 +698,7 @@ static int wireless_seq_open(struct inode *inode, struct file *file)
 
 static const struct file_operations wireless_seq_fops = {
 	.owner	 = THIS_MODULE,
-	.open    = wireless_seq_open,
+	.open    = seq_open_wireless,
 	.read    = seq_read,
 	.llseek  = seq_lseek,
 	.release = seq_release_net,
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index ed80af8ca5fb..21cdc872004e 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -332,14 +332,14 @@ static unsigned int x25_new_lci(struct x25_neigh *nb)
 /*
  *	Deferred destroy.
  */
-void x25_destroy_socket(struct sock *);
+static void __x25_destroy_socket(struct sock *);
 
 /*
  *	handler for deferred kills.
  */
 static void x25_destroy_timer(unsigned long data)
 {
-	x25_destroy_socket((struct sock *)data);
+	x25_destroy_socket_from_timer((struct sock *)data);
 }
 
 /*
@@ -349,12 +349,10 @@ static void x25_destroy_timer(unsigned long data)
  *	will touch it and we are (fairly 8-) ) safe.
  *	Not static as it's used by the timer
  */
-void x25_destroy_socket(struct sock *sk)
+static void __x25_destroy_socket(struct sock *sk)
 {
 	struct sk_buff *skb;
 
-	sock_hold(sk);
-	lock_sock(sk);
 	x25_stop_heartbeat(sk);
 	x25_stop_timer(sk);
 
@@ -374,8 +372,7 @@ void x25_destroy_socket(struct sock *sk)
 		kfree_skb(skb);
 	}
 
-	if (atomic_read(&sk->sk_wmem_alloc) ||
-	    atomic_read(&sk->sk_rmem_alloc)) {
+	if (sk_has_allocations(sk)) {
 		/* Defer: outstanding buffers */
 		sk->sk_timer.expires  = jiffies + 10 * HZ;
 		sk->sk_timer.function = x25_destroy_timer;
@@ -385,7 +382,22 @@ void x25_destroy_socket(struct sock *sk)
 		/* drop last reference so sock_put will free */
 		__sock_put(sk);
 	}
+}
+
+void x25_destroy_socket_from_timer(struct sock *sk)
+{
+	sock_hold(sk);
+	bh_lock_sock(sk);
+	__x25_destroy_socket(sk);
+	bh_unlock_sock(sk);
+	sock_put(sk);
+}
 
+static void x25_destroy_socket(struct sock *sk)
+{
+	sock_hold(sk);
+	lock_sock(sk);
+	__x25_destroy_socket(sk);
 	release_sock(sk);
 	sock_put(sk);
 }
@@ -1259,8 +1271,8 @@ static int x25_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 
 	switch (cmd) {
 		case TIOCOUTQ: {
-			int amount = sk->sk_sndbuf -
-				     atomic_read(&sk->sk_wmem_alloc);
+			int amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk);
+
 			if (amount < 0)
 				amount = 0;
 			rc = put_user(amount, (unsigned int __user *)argp);
diff --git a/net/x25/x25_proc.c b/net/x25/x25_proc.c
index 1afa44d25beb..0a04e62e0e18 100644
--- a/net/x25/x25_proc.c
+++ b/net/x25/x25_proc.c
@@ -163,8 +163,8 @@ static int x25_seq_socket_show(struct seq_file *seq, void *v)
 		   devname, x25->lci & 0x0FFF, x25->state, x25->vs, x25->vr,
 		   x25->va, x25_display_timer(s) / HZ, x25->t2  / HZ,
 		   x25->t21 / HZ, x25->t22 / HZ, x25->t23 / HZ,
-		   atomic_read(&s->sk_wmem_alloc),
-		   atomic_read(&s->sk_rmem_alloc),
+		   sk_wmem_alloc_get(s),
+		   sk_rmem_alloc_get(s),
 		   s->sk_socket ? SOCK_INODE(s->sk_socket)->i_ino : 0L);
 out:
 	return 0;
diff --git a/net/x25/x25_timer.c b/net/x25/x25_timer.c
index d3e3e54db936..5c5db1a36399 100644
--- a/net/x25/x25_timer.c
+++ b/net/x25/x25_timer.c
@@ -113,7 +113,7 @@ static void x25_heartbeat_expiry(unsigned long param)
 			    (sk->sk_state == TCP_LISTEN &&
 			     sock_flag(sk, SOCK_DEAD))) {
 				bh_unlock_sock(sk);
-				x25_destroy_socket(sk);
+				x25_destroy_socket_from_timer(sk);
 				return;
 			}
 			break;
diff --git a/net/xfrm/xfrm_algo.c b/net/xfrm/xfrm_algo.c
index 96036cf2216d..d31ccb487730 100644
--- a/net/xfrm/xfrm_algo.c
+++ b/net/xfrm/xfrm_algo.c
@@ -696,8 +696,9 @@ int skb_icv_walk(const struct sk_buff *skb, struct hash_desc *desc,
 {
 	int start = skb_headlen(skb);
 	int i, copy = start - offset;
-	int err;
+	struct sk_buff *frag_iter;
 	struct scatterlist sg;
+	int err;
 
 	/* Checksum header. */
 	if (copy > 0) {
@@ -742,28 +743,24 @@ int skb_icv_walk(const struct sk_buff *skb, struct hash_desc *desc,
 		start = end;
 	}
 
-	if (skb_shinfo(skb)->frag_list) {
-		struct sk_buff *list = skb_shinfo(skb)->frag_list;
-
-		for (; list; list = list->next) {
-			int end;
-
-			WARN_ON(start > offset + len);
-
-			end = start + list->len;
-			if ((copy = end - offset) > 0) {
-				if (copy > len)
-					copy = len;
-				err = skb_icv_walk(list, desc, offset-start,
-						   copy, icv_update);
-				if (unlikely(err))
-					return err;
-				if ((len -= copy) == 0)
-					return 0;
-				offset += copy;
-			}
-			start = end;
+	skb_walk_frags(skb, frag_iter) {
+		int end;
+
+		WARN_ON(start > offset + len);
+
+		end = start + frag_iter->len;
+		if ((copy = end - offset) > 0) {
+			if (copy > len)
+				copy = len;
+			err = skb_icv_walk(frag_iter, desc, offset-start,
+					   copy, icv_update);
+			if (unlikely(err))
+				return err;
+			if ((len -= copy) == 0)
+				return 0;
+			offset += copy;
 		}
+		start = end;
 	}
 	BUG_ON(len);
 	return 0;
diff --git a/net/xfrm/xfrm_input.c b/net/xfrm/xfrm_input.c
index b4a13178fb40..e0009c17d809 100644
--- a/net/xfrm/xfrm_input.c
+++ b/net/xfrm/xfrm_input.c
@@ -251,8 +251,7 @@ resume:
 	nf_reset(skb);
 
 	if (decaps) {
-		dst_release(skb->dst);
-		skb->dst = NULL;
+		skb_dst_drop(skb);
 		netif_rx(skb);
 		return 0;
 	} else {
diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c
index c235597ba8dd..b9fe13138c07 100644
--- a/net/xfrm/xfrm_output.c
+++ b/net/xfrm/xfrm_output.c
@@ -22,7 +22,7 @@ static int xfrm_output2(struct sk_buff *skb);
 
 static int xfrm_state_check_space(struct xfrm_state *x, struct sk_buff *skb)
 {
-	struct dst_entry *dst = skb->dst;
+	struct dst_entry *dst = skb_dst(skb);
 	int nhead = dst->header_len + LL_RESERVED_SPACE(dst->dev)
 		- skb_headroom(skb);
 	int ntail = dst->dev->needed_tailroom - skb_tailroom(skb);
@@ -39,7 +39,7 @@ static int xfrm_state_check_space(struct xfrm_state *x, struct sk_buff *skb)
 
 static int xfrm_output_one(struct sk_buff *skb, int err)
 {
-	struct dst_entry *dst = skb->dst;
+	struct dst_entry *dst = skb_dst(skb);
 	struct xfrm_state *x = dst->xfrm;
 	struct net *net = xs_net(x);
 
@@ -94,12 +94,13 @@ resume:
 			goto error_nolock;
 		}
 
-		if (!(skb->dst = dst_pop(dst))) {
+		dst = dst_pop(dst);
+		if (!dst) {
 			XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTERROR);
 			err = -EHOSTUNREACH;
 			goto error_nolock;
 		}
-		dst = skb->dst;
+		skb_dst_set(skb, dst);
 		x = dst->xfrm;
 	} while (x && !(x->outer_mode->flags & XFRM_MODE_FLAG_TUNNEL));
 
@@ -119,16 +120,16 @@ int xfrm_output_resume(struct sk_buff *skb, int err)
 	while (likely((err = xfrm_output_one(skb, err)) == 0)) {
 		nf_reset(skb);
 
-		err = skb->dst->ops->local_out(skb);
+		err = skb_dst(skb)->ops->local_out(skb);
 		if (unlikely(err != 1))
 			goto out;
 
-		if (!skb->dst->xfrm)
+		if (!skb_dst(skb)->xfrm)
 			return dst_output(skb);
 
-		err = nf_hook(skb->dst->ops->family,
+		err = nf_hook(skb_dst(skb)->ops->family,
 			      NF_INET_POST_ROUTING, skb,
-			      NULL, skb->dst->dev, xfrm_output2);
+			      NULL, skb_dst(skb)->dev, xfrm_output2);
 		if (unlikely(err != 1))
 			goto out;
 	}
@@ -179,7 +180,7 @@ static int xfrm_output_gso(struct sk_buff *skb)
 
 int xfrm_output(struct sk_buff *skb)
 {
-	struct net *net = dev_net(skb->dst->dev);
+	struct net *net = dev_net(skb_dst(skb)->dev);
 	int err;
 
 	if (skb_is_gso(skb))
@@ -202,7 +203,7 @@ int xfrm_inner_extract_output(struct xfrm_state *x, struct sk_buff *skb)
 	struct xfrm_mode *inner_mode;
 	if (x->sel.family == AF_UNSPEC)
 		inner_mode = xfrm_ip2inner_mode(x,
-				xfrm_af2proto(skb->dst->ops->family));
+				xfrm_af2proto(skb_dst(skb)->ops->family));
 	else
 		inner_mode = x->inner_mode;
 
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 9c068ab3a834..cb81ca35b0d6 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -2027,6 +2027,8 @@ int __xfrm_route_forward(struct sk_buff *skb, unsigned short family)
 {
 	struct net *net = dev_net(skb->dev);
 	struct flowi fl;
+	struct dst_entry *dst;
+	int res;
 
 	if (xfrm_decode_session(skb, &fl, family) < 0) {
 		/* XXX: we should have something like FWDHDRERROR here. */
@@ -2034,7 +2036,11 @@ int __xfrm_route_forward(struct sk_buff *skb, unsigned short family)
 		return 0;
 	}
 
-	return xfrm_lookup(net, &skb->dst, &fl, NULL, 0) == 0;
+	dst = skb_dst(skb);
+
+	res = xfrm_lookup(net, &dst, &fl, NULL, 0) == 0;
+	skb_dst_set(skb, dst);
+	return res;
 }
 EXPORT_SYMBOL(__xfrm_route_forward);