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| author | David S. Miller <davem@davemloft.net> | 2011-05-12 19:34:30 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-05-12 19:34:30 -0400 |
| commit | def57687e9579b7a797681990dff763c411f5347 (patch) | |
| tree | 24e1b96d286eda163cf98cf4d5eb5a1d24b34737 /net/ipv4 | |
| parent | c30883bdff0b3544900a5c4aba18b8985436878f (diff) | |
| download | lwn-def57687e9579b7a797681990dff763c411f5347.tar.gz lwn-def57687e9579b7a797681990dff763c411f5347.zip | |
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>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/ip_forward.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/ip_forward.c b/net/ipv4/ip_forward.c index 99461f09320f..fcbc0c8f1261 100644 --- a/net/ipv4/ip_forward.c +++ b/net/ipv4/ip_forward.c @@ -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) && |