From 2889139a6acd2945f6143eb85f7dc2a22a352e1a Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Fri, 30 Jun 2006 13:35:46 -0700 Subject: [PATCH] [IPV6]: Remove redundant length check on input We don't need to check skb->len when we're just about to call pskb_may_pull since that checks it for us. Signed-off-by: Herbert Xu Acked-by: YOSHIFUJI Hideaki Signed-off-by: David S. Miller --- net/ipv6/ip6_input.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c index aceee25250..df8f051c0f 100644 --- a/net/ipv6/ip6_input.c +++ b/net/ipv6/ip6_input.c @@ -84,14 +84,9 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt */ IP6CB(skb)->iif = skb->dst ? ((struct rt6_info *)skb->dst)->rt6i_idev->dev->ifindex : dev->ifindex; - if (skb->len < sizeof(struct ipv6hdr)) + if (unlikely(!pskb_may_pull(skb, sizeof(*hdr)))) goto err; - if (!pskb_may_pull(skb, sizeof(struct ipv6hdr))) { - IP6_INC_STATS_BH(IPSTATS_MIB_INHDRERRORS); - goto drop; - } - hdr = skb->nh.ipv6h; if (hdr->version != 6) -- 2.39.5