net: vlan: prepare for 802.1ad support
Make the encapsulation protocol value a property of VLAN devices and change
the device lookup functions to take the protocol value into account.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
index 04e3b95..4e4c360 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -12,7 +12,7 @@
struct net_device *vlan_dev;
struct vlan_pcpu_stats *rx_stats;
- vlan_dev = vlan_find_dev(skb->dev, vlan_id);
+ vlan_dev = vlan_find_dev(skb->dev, htons(ETH_P_8021Q), vlan_id);
if (!vlan_dev)
return false;
@@ -62,12 +62,13 @@
/* Must be invoked with rcu_read_lock. */
struct net_device *__vlan_find_dev_deep(struct net_device *dev,
- u16 vlan_id)
+ __be16 vlan_proto, u16 vlan_id)
{
struct vlan_info *vlan_info = rcu_dereference(dev->vlan_info);
if (vlan_info) {
- return vlan_group_get_device(&vlan_info->grp, vlan_id);
+ return vlan_group_get_device(&vlan_info->grp,
+ vlan_proto, vlan_id);
} else {
/*
* Lower devices of master uppers (bonding, team) do not have
@@ -78,7 +79,8 @@
upper_dev = netdev_master_upper_dev_get_rcu(dev);
if (upper_dev)
- return __vlan_find_dev_deep(upper_dev, vlan_id);
+ return __vlan_find_dev_deep(upper_dev,
+ vlan_proto, vlan_id);
}
return NULL;