batman-adv: use VLAN_ETH_HLEN instead of sizeof(struct vlan_eth_hdr)

Signed-off-by: Antonio Quartulli <ordex@autistici.org> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
mariux64 · Oct 12, 2013 · 2c59866 · 2c59866
1 parent f7f8ed5
commit 2c59866
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
@@ -1380,7 +1380,7 @@ int batadv_bla_is_backbone_gw(struct sk_buff *skb,
 	ethhdr = (struct ethhdr *)(((uint8_t *)skb->data) + hdr_size);
 
 	if (ntohs(ethhdr->h_proto) == ETH_P_8021Q) {
-		if (!pskb_may_pull(skb, hdr_size + sizeof(struct vlan_ethhdr)))
+		if (!pskb_may_pull(skb, hdr_size + VLAN_ETH_HLEN))
 			return 0;
 
 		vhdr = (struct vlan_ethhdr *)(skb->data + hdr_size);