From 2f631133c40cd8e311ae393518c3e651e476ab66 Mon Sep 17 00:00:00 2001 From: Miaohe Lin Date: Sat, 1 Aug 2020 17:36:05 +0800 Subject: [PATCH] net: Pass NULL to skb_network_protocol() when we don't care about vlan depth When we don't care about vlan depth, we could pass NULL instead of the address of a unused local variable to skb_network_protocol() as a param. Signed-off-by: Miaohe Lin Signed-off-by: David S. Miller --- net/core/skbuff.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 97ad6523e490..2828f6d5ba89 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -3758,7 +3758,6 @@ struct sk_buff *skb_segment(struct sk_buff *head_skb, int err = -ENOMEM; int i = 0; int pos; - int dummy; if (list_skb && !list_skb->head_frag && skb_headlen(list_skb) && (skb_shinfo(head_skb)->gso_type & SKB_GSO_DODGY)) { @@ -3780,7 +3779,7 @@ struct sk_buff *skb_segment(struct sk_buff *head_skb, } __skb_push(head_skb, doffset); - proto = skb_network_protocol(head_skb, &dummy); + proto = skb_network_protocol(head_skb, NULL); if (unlikely(!proto)) return ERR_PTR(-EINVAL);