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net: Move mtu handling down to the protocol depended handlers

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We move all mtu handling from dst_mtu() down to the protocol
layer. So each protocol can implement the mtu handling in
a different manner.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Steffen Klassert
2011-11-23 02:13:31 +00:00
committed by David S. Miller
parent ebb762f27f
commit 618f9bc74a
5 changed files with 25 additions and 12 deletions
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4
net/xfrm/xfrm_policy.c
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@@ -2384,7 +2384,9 @@ static unsigned int xfrm_default_advmss(const struct dst_entry *dst)
static unsigned int xfrm_mtu(const struct dst_entry *dst)
{
return dst_mtu(dst->path);
unsigned int mtu = dst_metric_raw(dst, RTAX_MTU);
return mtu ? : dst_mtu(dst->path);
}
static struct neighbour *xfrm_neigh_lookup(const struct dst_entry *dst, const void *daddr)