diff options
Diffstat (limited to 'net/8021q/vlan_core.c')
| -rw-r--r-- | net/8021q/vlan_core.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c index 6ee48aac776..75d42776399 100644 --- a/net/8021q/vlan_core.c +++ b/net/8021q/vlan_core.c @@ -22,11 +22,11 @@ bool vlan_do_receive(struct sk_buff **skbp) return false; skb->dev = vlan_dev; - if (skb->pkt_type == PACKET_OTHERHOST) { + if (unlikely(skb->pkt_type == PACKET_OTHERHOST)) { /* Our lower layer thinks this is not local, let's make sure. * This allows the VLAN to have a different MAC than the * underlying device, and still route correctly. */ - if (ether_addr_equal(eth_hdr(skb)->h_dest, vlan_dev->dev_addr)) + if (ether_addr_equal_64bits(eth_hdr(skb)->h_dest, vlan_dev->dev_addr)) skb->pkt_type = PACKET_HOST; } @@ -63,7 +63,7 @@ bool vlan_do_receive(struct sk_buff **skbp) } /* Must be invoked with rcu_read_lock. */ -struct net_device *__vlan_find_dev_deep(struct net_device *dev, +struct net_device *__vlan_find_dev_deep_rcu(struct net_device *dev, __be16 vlan_proto, u16 vlan_id) { struct vlan_info *vlan_info = rcu_dereference(dev->vlan_info); @@ -81,13 +81,13 @@ struct net_device *__vlan_find_dev_deep(struct net_device *dev, upper_dev = netdev_master_upper_dev_get_rcu(dev); if (upper_dev) - return __vlan_find_dev_deep(upper_dev, + return __vlan_find_dev_deep_rcu(upper_dev, vlan_proto, vlan_id); } return NULL; } -EXPORT_SYMBOL(__vlan_find_dev_deep); +EXPORT_SYMBOL(__vlan_find_dev_deep_rcu); struct net_device *vlan_dev_real_dev(const struct net_device *dev) { @@ -106,10 +106,19 @@ u16 vlan_dev_vlan_id(const struct net_device *dev) } EXPORT_SYMBOL(vlan_dev_vlan_id); +__be16 vlan_dev_vlan_proto(const struct net_device *dev) +{ + return vlan_dev_priv(dev)->vlan_proto; +} +EXPORT_SYMBOL(vlan_dev_vlan_proto); + static struct sk_buff *vlan_reorder_header(struct sk_buff *skb) { - if (skb_cow(skb, skb_headroom(skb)) < 0) + if (skb_cow(skb, skb_headroom(skb)) < 0) { + kfree_skb(skb); return NULL; + } + memmove(skb->data - ETH_HLEN, skb->data - VLAN_ETH_HLEN, 2 * ETH_ALEN); skb->mac_header += VLAN_HLEN; return skb; |