From 7b6cd1ce72176e21be15a0ac153bdaa5be1b208a Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Wed, 1 Feb 2012 10:54:43 +0000 Subject: PATCH V2 net-next] net: dev: Convert printks to pr_ Use the current logging style. Coalesce formats where appropriate. Update grammar where appropriate. Signed-off-by: Joe Perches Signed-off-by: David S. Miller --- net/core/dev.c | 94 ++++++++++++++++++++++++---------------------------------- 1 file changed, 39 insertions(+), 55 deletions(-) (limited to 'net/core/dev.c') diff --git a/net/core/dev.c b/net/core/dev.c index 115dee1d985d..f1249472e90e 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -446,7 +446,7 @@ void __dev_remove_pack(struct packet_type *pt) } } - printk(KERN_WARNING "dev_remove_pack: %p not found.\n", pt); + pr_warn("dev_remove_pack: %p not found\n", pt); out: spin_unlock(&ptype_lock); } @@ -1039,8 +1039,7 @@ rollback: memcpy(dev->name, oldname, IFNAMSIZ); goto rollback; } else { - printk(KERN_ERR - "%s: name change rollback failed: %d.\n", + pr_err("%s: name change rollback failed: %d\n", dev->name, ret); } } @@ -1139,9 +1138,8 @@ void dev_load(struct net *net, const char *name) no_module = request_module("netdev-%s", name); if (no_module && capable(CAP_SYS_MODULE)) { if (!request_module("%s", name)) - pr_err("Loading kernel module for a network device " -"with CAP_SYS_MODULE (deprecated). Use CAP_NET_ADMIN and alias netdev-%s " -"instead\n", name); + pr_err("Loading kernel module for a network device with CAP_SYS_MODULE (deprecated). Use CAP_NET_ADMIN and alias netdev-%s instead.\n", + name); } } EXPORT_SYMBOL(dev_load); @@ -1655,10 +1653,9 @@ static void dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev) if (skb_network_header(skb2) < skb2->data || skb2->network_header > skb2->tail) { if (net_ratelimit()) - printk(KERN_CRIT "protocol %04x is " - "buggy, dev %s\n", - ntohs(skb2->protocol), - dev->name); + pr_crit("protocol %04x is buggy, dev %s\n", + ntohs(skb2->protocol), + dev->name); skb_reset_network_header(skb2); } @@ -1691,9 +1688,7 @@ static void netif_setup_tc(struct net_device *dev, unsigned int txq) /* If TC0 is invalidated disable TC mapping */ if (tc->offset + tc->count > txq) { - pr_warning("Number of in use tx queues changed " - "invalidating tc mappings. Priority " - "traffic classification disabled!\n"); + pr_warn("Number of in use tx queues changed invalidating tc mappings. Priority traffic classification disabled!\n"); dev->num_tc = 0; return; } @@ -1704,11 +1699,8 @@ static void netif_setup_tc(struct net_device *dev, unsigned int txq) tc = &dev->tc_to_txq[q]; if (tc->offset + tc->count > txq) { - pr_warning("Number of in use tx queues " - "changed. Priority %i to tc " - "mapping %i is no longer valid " - "setting map to 0\n", - i, q); + pr_warn("Number of in use tx queues changed. Priority %i to tc mapping %i is no longer valid. Setting map to 0\n", + i, q); netdev_set_prio_tc_map(dev, i, 0); } } @@ -2014,8 +2006,7 @@ EXPORT_SYMBOL(skb_gso_segment); void netdev_rx_csum_fault(struct net_device *dev) { if (net_ratelimit()) { - printk(KERN_ERR "%s: hw csum failure.\n", - dev ? dev->name : ""); + pr_err("%s: hw csum failure\n", dev ? dev->name : ""); dump_stack(); } } @@ -2332,9 +2323,9 @@ static inline u16 dev_cap_txqueue(struct net_device *dev, u16 queue_index) { if (unlikely(queue_index >= dev->real_num_tx_queues)) { if (net_ratelimit()) { - pr_warning("%s selects TX queue %d, but " - "real number of TX queues is %d\n", - dev->name, queue_index, dev->real_num_tx_queues); + pr_warn("%s selects TX queue %d, but real number of TX queues is %d\n", + dev->name, queue_index, + dev->real_num_tx_queues); } return 0; } @@ -2578,16 +2569,16 @@ int dev_queue_xmit(struct sk_buff *skb) } HARD_TX_UNLOCK(dev, txq); if (net_ratelimit()) - printk(KERN_CRIT "Virtual device %s asks to " - "queue packet!\n", dev->name); + pr_crit("Virtual device %s asks to queue packet!\n", + dev->name); } else { /* Recursion is detected! It is possible, * unfortunately */ recursion_alert: if (net_ratelimit()) - printk(KERN_CRIT "Dead loop on virtual device " - "%s, fix it urgently!\n", dev->name); + pr_crit("Dead loop on virtual device %s, fix it urgently!\n", + dev->name); } } @@ -3069,8 +3060,8 @@ static int ing_filter(struct sk_buff *skb, struct netdev_queue *rxq) if (unlikely(MAX_RED_LOOP < ttl++)) { if (net_ratelimit()) - pr_warning( "Redir loop detected Dropping packet (%d->%d)\n", - skb->skb_iif, dev->ifindex); + pr_warn("Redir loop detected Dropping packet (%d->%d)\n", + skb->skb_iif, dev->ifindex); return TC_ACT_SHOT; } @@ -4491,16 +4482,15 @@ static int __dev_set_promiscuity(struct net_device *dev, int inc) dev->flags &= ~IFF_PROMISC; else { dev->promiscuity -= inc; - printk(KERN_WARNING "%s: promiscuity touches roof, " - "set promiscuity failed, promiscuity feature " - "of device might be broken.\n", dev->name); + pr_warn("%s: promiscuity touches roof, set promiscuity failed. promiscuity feature of device might be broken.\n", + dev->name); return -EOVERFLOW; } } if (dev->flags != old_flags) { - printk(KERN_INFO "device %s %s promiscuous mode\n", - dev->name, (dev->flags & IFF_PROMISC) ? "entered" : - "left"); + pr_info("device %s %s promiscuous mode\n", + dev->name, + dev->flags & IFF_PROMISC ? "entered" : "left"); if (audit_enabled) { current_uid_gid(&uid, &gid); audit_log(current->audit_context, GFP_ATOMIC, @@ -4573,9 +4563,8 @@ int dev_set_allmulti(struct net_device *dev, int inc) dev->flags &= ~IFF_ALLMULTI; else { dev->allmulti -= inc; - printk(KERN_WARNING "%s: allmulti touches roof, " - "set allmulti failed, allmulti feature of " - "device might be broken.\n", dev->name); + pr_warn("%s: allmulti touches roof, set allmulti failed. allmulti feature of device might be broken.\n", + dev->name); return -EOVERFLOW; } } @@ -5232,8 +5221,8 @@ static void rollback_registered_many(struct list_head *head) * devices and proceed with the remaining. */ if (dev->reg_state == NETREG_UNINITIALIZED) { - pr_debug("unregister_netdevice: device %s/%p never " - "was registered\n", dev->name, dev); + pr_debug("unregister_netdevice: device %s/%p never was registered\n", + dev->name, dev); WARN_ON(1); list_del(&dev->unreg_list); @@ -5465,7 +5454,7 @@ static int netif_alloc_rx_queues(struct net_device *dev) rx = kcalloc(count, sizeof(struct netdev_rx_queue), GFP_KERNEL); if (!rx) { - pr_err("netdev: Unable to allocate %u rx queues.\n", count); + pr_err("netdev: Unable to allocate %u rx queues\n", count); return -ENOMEM; } dev->_rx = rx; @@ -5499,8 +5488,7 @@ static int netif_alloc_netdev_queues(struct net_device *dev) tx = kcalloc(count, sizeof(struct netdev_queue), GFP_KERNEL); if (!tx) { - pr_err("netdev: Unable to allocate %u tx queues.\n", - count); + pr_err("netdev: Unable to allocate %u tx queues\n", count); return -ENOMEM; } dev->_tx = tx; @@ -5759,10 +5747,8 @@ static void netdev_wait_allrefs(struct net_device *dev) refcnt = netdev_refcnt_read(dev); if (time_after(jiffies, warning_time + 10 * HZ)) { - printk(KERN_EMERG "unregister_netdevice: " - "waiting for %s to become free. Usage " - "count = %d\n", - dev->name, refcnt); + pr_emerg("unregister_netdevice: waiting for %s to become free. Usage count = %d\n", + dev->name, refcnt); warning_time = jiffies; } } @@ -5813,7 +5799,7 @@ void netdev_run_todo(void) list_del(&dev->todo_list); if (unlikely(dev->reg_state != NETREG_UNREGISTERING)) { - printk(KERN_ERR "network todo '%s' but state %d\n", + pr_err("network todo '%s' but state %d\n", dev->name, dev->reg_state); dump_stack(); continue; @@ -5929,15 +5915,13 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name, BUG_ON(strlen(name) >= sizeof(dev->name)); if (txqs < 1) { - pr_err("alloc_netdev: Unable to allocate device " - "with zero queues.\n"); + pr_err("alloc_netdev: Unable to allocate device with zero queues\n"); return NULL; } #ifdef CONFIG_RPS if (rxqs < 1) { - pr_err("alloc_netdev: Unable to allocate device " - "with zero RX queues.\n"); + pr_err("alloc_netdev: Unable to allocate device with zero RX queues\n"); return NULL; } #endif @@ -5953,7 +5937,7 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name, p = kzalloc(alloc_size, GFP_KERNEL); if (!p) { - printk(KERN_ERR "alloc_netdev: Unable to allocate device.\n"); + pr_err("alloc_netdev: Unable to allocate device\n"); return NULL; } @@ -6486,8 +6470,8 @@ static void __net_exit default_device_exit(struct net *net) snprintf(fb_name, IFNAMSIZ, "dev%d", dev->ifindex); err = dev_change_net_namespace(dev, &init_net, fb_name); if (err) { - printk(KERN_EMERG "%s: failed to move %s to init_net: %d\n", - __func__, dev->name, err); + pr_emerg("%s: failed to move %s to init_net: %d\n", + __func__, dev->name, err); BUG(); } } -- cgit v1.2.3 From 43480aecb1f538d4f6dd8b2c5d2b71fb98659072 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 8 Feb 2012 08:51:50 +0000 Subject: gro: more generic L2 header check Shlomo Pongratz reported GRO L2 header check was suited for Ethernet only, and failed on IB/ipoib traffic. He provided a patch faking a zeroed header to let GRO aggregates frames. Roland Dreier, Herbert Xu, and others suggested we change GRO L2 header check to be more generic, ie not assuming L2 header is 14 bytes, but taking into account hard_header_len. __napi_gro_receive() has special handling for the common case (Ethernet) to avoid a memcmp() call and use an inline optimized function instead. Signed-off-by: Eric Dumazet Reported-by: Shlomo Pongratz Cc: Roland Dreier Cc: Or Gerlitz Cc: Herbert Xu Tested-by: Sean Hefty Signed-off-by: David S. Miller --- net/core/dev.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'net/core/dev.c') diff --git a/net/core/dev.c b/net/core/dev.c index f1249472e90e..763a0eda7158 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -3491,14 +3491,20 @@ static inline gro_result_t __napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb) { struct sk_buff *p; + unsigned int maclen = skb->dev->hard_header_len; for (p = napi->gro_list; p; p = p->next) { unsigned long diffs; diffs = (unsigned long)p->dev ^ (unsigned long)skb->dev; diffs |= p->vlan_tci ^ skb->vlan_tci; - diffs |= compare_ether_header(skb_mac_header(p), - skb_gro_mac_header(skb)); + if (maclen == ETH_HLEN) + diffs |= compare_ether_header(skb_mac_header(p), + skb_gro_mac_header(skb)); + else if (!diffs) + diffs = memcmp(skb_mac_header(p), + skb_gro_mac_header(skb), + maclen); NAPI_GRO_CB(p)->same_flow = !diffs; NAPI_GRO_CB(p)->flush = 0; } -- cgit v1.2.3 From 77a1abf54f4b003ad6e59c535045b2ad89fedfeb Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 5 Mar 2012 04:50:09 +0000 Subject: net: export netdev_stats_to_stats64 Some drivers use internal netdev stats member to store part of their stats, yet advertize ndo_get_stats64() to implement some 64bit fields. Allow them to use netdev_stats_to_stats64() helper to make the copy of netdev stats before they compute their 64bit counters. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/core/dev.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'net/core/dev.c') diff --git a/net/core/dev.c b/net/core/dev.c index 763a0eda7158..5ef3b65c3687 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -5834,12 +5834,12 @@ void netdev_run_todo(void) /* Convert net_device_stats to rtnl_link_stats64. They have the same * fields in the same order, with only the type differing. */ -static void netdev_stats_to_stats64(struct rtnl_link_stats64 *stats64, - const struct net_device_stats *netdev_stats) +void netdev_stats_to_stats64(struct rtnl_link_stats64 *stats64, + const struct net_device_stats *netdev_stats) { #if BITS_PER_LONG == 64 - BUILD_BUG_ON(sizeof(*stats64) != sizeof(*netdev_stats)); - memcpy(stats64, netdev_stats, sizeof(*stats64)); + BUILD_BUG_ON(sizeof(*stats64) != sizeof(*netdev_stats)); + memcpy(stats64, netdev_stats, sizeof(*stats64)); #else size_t i, n = sizeof(*stats64) / sizeof(u64); const unsigned long *src = (const unsigned long *)netdev_stats; @@ -5851,6 +5851,7 @@ static void netdev_stats_to_stats64(struct rtnl_link_stats64 *stats64, dst[i] = src[i]; #endif } +EXPORT_SYMBOL(netdev_stats_to_stats64); /** * dev_get_stats - get network device statistics -- cgit v1.2.3 From 95f050bf7f64be5168ae2e2c715bb0b0ded141d1 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 6 Mar 2012 16:12:15 -0500 Subject: net: Use bool for return value of dev_valid_name(). Signed-off-by: David S. Miller --- net/core/dev.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'net/core/dev.c') diff --git a/net/core/dev.c b/net/core/dev.c index 5ef3b65c3687..0090809af7bd 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -848,21 +848,21 @@ EXPORT_SYMBOL(dev_get_by_flags_rcu); * to allow sysfs to work. We also disallow any kind of * whitespace. */ -int dev_valid_name(const char *name) +bool dev_valid_name(const char *name) { if (*name == '\0') - return 0; + return false; if (strlen(name) >= IFNAMSIZ) - return 0; + return false; if (!strcmp(name, ".") || !strcmp(name, "..")) - return 0; + return false; while (*name) { if (*name == '/' || isspace(*name)) - return 0; + return false; name++; } - return 1; + return true; } EXPORT_SYMBOL(dev_valid_name); -- cgit v1.2.3