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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 <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Steffen Klassert 2011-11-23 02:13:31 +00:00 • committed by David S. Miller
commit 618f9bc74a
5 changed files with 25 additions and 12 deletions
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4
net/decnet/dn_route.c
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@ -827,7 +827,9 @@ static unsigned int dn_dst_default_advmss(const struct dst_entry *dst)
static unsigned int dn_dst_mtu(const struct dst_entry *dst)
{
return dst->dev->mtu;
unsigned int mtu = dst_metric_raw(dst, RTAX_MTU);
return mtu ? : dst->dev->mtu;
}
static struct neighbour *dn_dst_neigh_lookup(const struct dst_entry *dst, const void *daddr)