Commit def57687 authored May 12, 2011 by David S. Miller

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>

parent c30883bd

net/ipv4/ip_forward.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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) &&