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ipv4: Elide use of rt->rt_dst in ip_forward() 

No matter what kind of header mangling occurs due to IP options
processing, rt->rt_dst will always equal iph->daddr in the packet.

So we can safely use iph->daddr instead of rt->rt_dst here.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2011-05-12 19:34:30 -04:00
parent c30883bdff
commit def57687e9
1 changed files with 1 additions and 1 deletions
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2
net/ipv4/ip_forward.c
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@ -84,7 +84,7 @@ int ip_forward(struct sk_buff *skb)
rt = skb_rtable(skb);
if (opt->is_strictroute && rt->rt_dst != rt->rt_gateway)
if (opt->is_strictroute && iph->daddr != rt->rt_gateway)
goto sr_failed;
if (unlikely(skb->len > dst_mtu(&rt->dst) && !skb_is_gso(skb) &&