Commit e9c60422 authored by Thomas Graf's avatar Thomas Graf Committed by David S. Miller
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[IPV4]: Avoid common branch misprediction while checking csum in ip_rcv()

Signed-off-by: default avatarThomas Graf <>
Signed-off-by: default avatarDavid S. Miller <>
parent 58615242
......@@ -400,7 +400,7 @@ int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
iph = skb->nh.iph;
if (ip_fast_csum((u8 *)iph, iph->ihl) != 0)
if (unlikely(ip_fast_csum((u8 *)iph, iph->ihl)))
goto inhdr_error;
len = ntohs(iph->tot_len);
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