vlan: Calling vlan_hwaccel_do_receive() is always valid.

It is now acceptable to receive vlan tagged packets at any time,
even if CONFIG_VLAN_8021Q is not set.  This means that calling
vlan_hwaccel_do_receive() should not result in BUG() but rather just
behave as if there were no vlan devices configured.

Reported-by: Vladislav Zolotarov <vladz@broadcom.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index a0d9786c202d..c2f3a72712ce 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -168,7 +168,8 @@ static inline int __vlan_hwaccel_rx(struct sk_buff *skb, struct vlan_group *grp,
 
 static inline bool vlan_hwaccel_do_receive(struct sk_buff **skb)
 {
-        BUG();
+        if ((*skb)->vlan_tci & VLAN_VID_MASK)
+                (*skb)->pkt_type = PACKET_OTHERHOST;
         return false;
 }