Merge Linus master into drm-next

The merge is clean, but the arm build fails afterwards,
due to API changes in the regulator tree.

I've included the patch into the merge to fix the build.

Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 56 insertions, 56 deletions

diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 70fe9e10ac86..3de654256028 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -397,25 +397,15 @@ struct neighbour *neigh_lookup(struct neigh_table *tbl, const void *pkey,
 			       struct net_device *dev)
 {
 	struct neighbour *n;
-	int key_len = tbl->key_len;
-	u32 hash_val;
-	struct neigh_hash_table *nht;
 
 	NEIGH_CACHE_STAT_INC(tbl, lookups);
 
 	rcu_read_lock_bh();
-	nht = rcu_dereference_bh(tbl->nht);
-	hash_val = tbl->hash(pkey, dev, nht->hash_rnd) >> (32 - nht->hash_shift);
-
-	for (n = rcu_dereference_bh(nht->hash_buckets[hash_val]);
-	     n != NULL;
-	     n = rcu_dereference_bh(n->next)) {
-		if (dev == n->dev && !memcmp(n->primary_key, pkey, key_len)) {
-			if (!atomic_inc_not_zero(&n->refcnt))
-				n = NULL;
-			NEIGH_CACHE_STAT_INC(tbl, hits);
-			break;
-		}
+	n = __neigh_lookup_noref(tbl, pkey, dev);
+	if (n) {
+		if (!atomic_inc_not_zero(&n->refcnt))
+			n = NULL;
+		NEIGH_CACHE_STAT_INC(tbl, hits);
 	}
 
 	rcu_read_unlock_bh();
@@ -601,7 +591,7 @@ struct pneigh_entry * pneigh_lookup(struct neigh_table *tbl,
 	if (!n)
 		goto out;
 
-	write_pnet(&n->net, hold_net(net));
+	write_pnet(&n->net, net);
 	memcpy(n->key, pkey, key_len);
 	n->dev = dev;
 	if (dev)
@@ -610,7 +600,6 @@ struct pneigh_entry * pneigh_lookup(struct neigh_table *tbl,
 	if (tbl->pconstructor && tbl->pconstructor(n)) {
 		if (dev)
 			dev_put(dev);
-		release_net(net);
 		kfree(n);
 		n = NULL;
 		goto out;
@@ -644,7 +633,6 @@ int pneigh_delete(struct neigh_table *tbl, struct net *net, const void *pkey,
 				tbl->pdestructor(n);
 			if (n->dev)
 				dev_put(n->dev);
-			release_net(pneigh_net(n));
 			kfree(n);
 			return 0;
 		}
@@ -667,7 +655,6 @@ static int pneigh_ifdown(struct neigh_table *tbl, struct net_device *dev)
 					tbl->pdestructor(n);
 				if (n->dev)
 					dev_put(n->dev);
-				release_net(pneigh_net(n));
 				kfree(n);
 				continue;
 			}
@@ -830,10 +817,9 @@ out:
 static __inline__ int neigh_max_probes(struct neighbour *n)
 {
 	struct neigh_parms *p = n->parms;
-	int max_probes = NEIGH_VAR(p, UCAST_PROBES) + NEIGH_VAR(p, APP_PROBES);
-	if (!(n->nud_state & NUD_PROBE))
-		max_probes += NEIGH_VAR(p, MCAST_PROBES);
-	return max_probes;
+	return NEIGH_VAR(p, UCAST_PROBES) + NEIGH_VAR(p, APP_PROBES) +
+	       (n->nud_state & NUD_PROBE ? NEIGH_VAR(p, MCAST_REPROBES) :
+	        NEIGH_VAR(p, MCAST_PROBES));
 }
 
 static void neigh_invalidate(struct neighbour *neigh)
@@ -1263,10 +1249,10 @@ struct neighbour *neigh_event_ns(struct neigh_table *tbl,
 EXPORT_SYMBOL(neigh_event_ns);
 
 /* called with read_lock_bh(&n->lock); */
-static void neigh_hh_init(struct neighbour *n, struct dst_entry *dst)
+static void neigh_hh_init(struct neighbour *n)
 {
-	struct net_device *dev = dst->dev;
-	__be16 prot = dst->ops->protocol;
+	struct net_device *dev = n->dev;
+	__be16 prot = n->tbl->protocol;
 	struct hh_cache	*hh = &n->hh;
 
 	write_lock_bh(&n->lock);
@@ -1280,43 +1266,19 @@ static void neigh_hh_init(struct neighbour *n, struct dst_entry *dst)
 	write_unlock_bh(&n->lock);
 }
 
-/* This function can be used in contexts, where only old dev_queue_xmit
- * worked, f.e. if you want to override normal output path (eql, shaper),
- * but resolution is not made yet.
- */
-
-int neigh_compat_output(struct neighbour *neigh, struct sk_buff *skb)
-{
-	struct net_device *dev = skb->dev;
-
-	__skb_pull(skb, skb_network_offset(skb));
-
-	if (dev_hard_header(skb, dev, ntohs(skb->protocol), NULL, NULL,
-			    skb->len) < 0 &&
-	    dev_rebuild_header(skb))
-		return 0;
-
-	return dev_queue_xmit(skb);
-}
-EXPORT_SYMBOL(neigh_compat_output);
-
 /* Slow and careful. */
 
 int neigh_resolve_output(struct neighbour *neigh, struct sk_buff *skb)
 {
-	struct dst_entry *dst = skb_dst(skb);
 	int rc = 0;
 
-	if (!dst)
-		goto discard;
-
 	if (!neigh_event_send(neigh, skb)) {
 		int err;
 		struct net_device *dev = neigh->dev;
 		unsigned int seq;
 
 		if (dev->header_ops->cache && !neigh->hh.hh_len)
-			neigh_hh_init(neigh, dst);
+			neigh_hh_init(neigh);
 
 		do {
 			__skb_pull(skb, skb_network_offset(skb));
@@ -1332,8 +1294,6 @@ int neigh_resolve_output(struct neighbour *neigh, struct sk_buff *skb)
 	}
 out:
 	return rc;
-discard:
-	neigh_dbg(1, "%s: dst=%p neigh=%p\n", __func__, dst, neigh);
 out_kfree_skb:
 	rc = -EINVAL;
 	kfree_skb(skb);
@@ -1464,11 +1424,10 @@ struct neigh_parms *neigh_parms_alloc(struct net_device *dev,
 				neigh_rand_reach_time(NEIGH_VAR(p, BASE_REACHABLE_TIME));
 		dev_hold(dev);
 		p->dev = dev;
-		write_pnet(&p->net, hold_net(net));
+		write_pnet(&p->net, net);
 		p->sysctl_table = NULL;
 
 		if (ops->ndo_neigh_setup && ops->ndo_neigh_setup(dev, p)) {
-			release_net(net);
 			dev_put(dev);
 			kfree(p);
 			return NULL;
@@ -1508,7 +1467,6 @@ EXPORT_SYMBOL(neigh_parms_release);
 
 static void neigh_parms_destroy(struct neigh_parms *parms)
 {
-	release_net(neigh_parms_net(parms));
 	kfree(parms);
 }
 
@@ -1783,6 +1741,8 @@ static int neightbl_fill_parms(struct sk_buff *skb, struct neigh_parms *parms)
 			NEIGH_VAR(parms, UCAST_PROBES)) ||
 	    nla_put_u32(skb, NDTPA_MCAST_PROBES,
 			NEIGH_VAR(parms, MCAST_PROBES)) ||
+	    nla_put_u32(skb, NDTPA_MCAST_REPROBES,
+			NEIGH_VAR(parms, MCAST_REPROBES)) ||
 	    nla_put_msecs(skb, NDTPA_REACHABLE_TIME, parms->reachable_time) ||
 	    nla_put_msecs(skb, NDTPA_BASE_REACHABLE_TIME,
 			  NEIGH_VAR(parms, BASE_REACHABLE_TIME)) ||
@@ -1942,6 +1902,7 @@ static const struct nla_policy nl_ntbl_parm_policy[NDTPA_MAX+1] = {
 	[NDTPA_APP_PROBES]		= { .type = NLA_U32 },
 	[NDTPA_UCAST_PROBES]		= { .type = NLA_U32 },
 	[NDTPA_MCAST_PROBES]		= { .type = NLA_U32 },
+	[NDTPA_MCAST_REPROBES]		= { .type = NLA_U32 },
 	[NDTPA_BASE_REACHABLE_TIME]	= { .type = NLA_U64 },
 	[NDTPA_GC_STALETIME]		= { .type = NLA_U64 },
 	[NDTPA_DELAY_PROBE_TIME]	= { .type = NLA_U64 },
@@ -2042,6 +2003,10 @@ static int neightbl_set(struct sk_buff *skb, struct nlmsghdr *nlh)
 				NEIGH_VAR_SET(p, MCAST_PROBES,
 					      nla_get_u32(tbp[i]));
 				break;
+			case NDTPA_MCAST_REPROBES:
+				NEIGH_VAR_SET(p, MCAST_REPROBES,
+					      nla_get_u32(tbp[i]));
+				break;
 			case NDTPA_BASE_REACHABLE_TIME:
 				NEIGH_VAR_SET(p, BASE_REACHABLE_TIME,
 					      nla_get_msecs(tbp[i]));
@@ -2427,6 +2392,40 @@ void __neigh_for_each_release(struct neigh_table *tbl,
 }
 EXPORT_SYMBOL(__neigh_for_each_release);
 
+int neigh_xmit(int index, struct net_device *dev,
+	       const void *addr, struct sk_buff *skb)
+{
+	int err = -EAFNOSUPPORT;
+	if (likely(index < NEIGH_NR_TABLES)) {
+		struct neigh_table *tbl;
+		struct neighbour *neigh;
+
+		tbl = neigh_tables[index];
+		if (!tbl)
+			goto out;
+		neigh = __neigh_lookup_noref(tbl, addr, dev);
+		if (!neigh)
+			neigh = __neigh_create(tbl, addr, dev, false);
+		err = PTR_ERR(neigh);
+		if (IS_ERR(neigh))
+			goto out_kfree_skb;
+		err = neigh->output(neigh, skb);
+	}
+	else if (index == NEIGH_LINK_TABLE) {
+		err = dev_hard_header(skb, dev, ntohs(skb->protocol),
+				      addr, NULL, skb->len);
+		if (err < 0)
+			goto out_kfree_skb;
+		err = dev_queue_xmit(skb);
+	}
+out:
+	return err;
+out_kfree_skb:
+	kfree_skb(skb);
+	goto out;
+}
+EXPORT_SYMBOL(neigh_xmit);
+
 #ifdef CONFIG_PROC_FS
 
 static struct neighbour *neigh_get_first(struct seq_file *seq)
@@ -2994,6 +2993,7 @@ static struct neigh_sysctl_table {
 		NEIGH_SYSCTL_ZERO_INTMAX_ENTRY(MCAST_PROBES, "mcast_solicit"),
 		NEIGH_SYSCTL_ZERO_INTMAX_ENTRY(UCAST_PROBES, "ucast_solicit"),
 		NEIGH_SYSCTL_ZERO_INTMAX_ENTRY(APP_PROBES, "app_solicit"),
+		NEIGH_SYSCTL_ZERO_INTMAX_ENTRY(MCAST_REPROBES, "mcast_resolicit"),
 		NEIGH_SYSCTL_USERHZ_JIFFIES_ENTRY(RETRANS_TIME, "retrans_time"),
 		NEIGH_SYSCTL_JIFFIES_ENTRY(BASE_REACHABLE_TIME, "base_reachable_time"),
 		NEIGH_SYSCTL_JIFFIES_ENTRY(DELAY_PROBE_TIME, "delay_first_probe_time"),