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ipv6: drop the judgement in rt6_alloc_cow()

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Now rt6_alloc_cow() is only called by ip6_pol_route() when
rt->rt6i_flags doesn't contain both RTF_NONEXTHOP and RTF_GATEWAY,
and rt->rt6i_flags hasn't been changed in ip6_rt_copy().
So there is no neccessary to judge whether rt->rt6i_flags contains
RTF_GATEWAY or not.

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Duan Jiong 2013-11-05 13:34:53 +08:00 committed by David S. Miller
parent 0e033e04c2
commit 249a3630c4
1 changed files with 3 additions and 5 deletions
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8
net/ipv6/route.c
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@ -871,11 +871,9 @@ static struct rt6_info *rt6_alloc_cow(struct rt6_info *ort,
rt = ip6_rt_copy(ort, daddr);
if (rt) {
if (!(rt->rt6i_flags & RTF_GATEWAY)) {
if (ort->rt6i_dst.plen != 128 &&
ipv6_addr_equal(&ort->rt6i_dst.addr, daddr))
rt->rt6i_flags |= RTF_ANYCAST;
}
if (ort->rt6i_dst.plen != 128 &&
ipv6_addr_equal(&ort->rt6i_dst.addr, daddr))
rt->rt6i_flags |= RTF_ANYCAST;
rt->rt6i_flags |= RTF_CACHE;