Commit 2889139a authored by Herbert Xu's avatar Herbert Xu Committed by David S. Miller
Browse files

[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: default avatarHerbert Xu <herbert@gondor.apana.org.au>
Acked-by: default avatarYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent dd7271fe
......@@ -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)
......
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