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[IPV6]: Don't update ADVMSS on routes where the MTU is not also updated 

The ADVMSS value was incorrectly updated for ALL routes when the MTU
is updated because it's outside the effect of the if statement's
condition.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Simon Arlott 2007-07-26 00:09:55 -07:00 committed by David S. Miller
parent 342ff7b24f
commit 566cfd8f0e
1 changed files with 3 additions and 2 deletions
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5
net/ipv6/route.c
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@ -1983,9 +1983,10 @@ static int rt6_mtu_change_route(struct rt6_info *rt, void *p_arg)
!dst_metric_locked(&rt->u.dst, RTAX_MTU) &&
(dst_mtu(&rt->u.dst) > arg->mtu ||
(dst_mtu(&rt->u.dst) < arg->mtu &&
dst_mtu(&rt->u.dst) == idev->cnf.mtu6)))
dst_mtu(&rt->u.dst) == idev->cnf.mtu6))) {
rt->u.dst.metrics[RTAX_MTU-1] = arg->mtu;
rt->u.dst.metrics[RTAX_ADVMSS-1] = ipv6_advmss(arg->mtu);
rt->u.dst.metrics[RTAX_ADVMSS-1] = ipv6_advmss(arg->mtu);
}
return 0;
}