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authorSteffen Klassert <steffen.klassert@secunet.com>2011-11-23 02:13:31 +0000
committerDavid S. Miller <davem@davemloft.net>2011-11-26 14:29:51 -0500
commit618f9bc74a039da76fa027ac2600c5b785b964c5 (patch)
treeff69bc14b711c9c9d4c691d2a8c262401d62c8c9 /net/xfrm
parentebb762f27fed083cb993a0816393aba4615f6544 (diff)
downloadlinux-618f9bc74a039da76fa027ac2600c5b785b964c5.tar.bz2
net: Move mtu handling down to the protocol depended handlers
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>
Diffstat (limited to 'net/xfrm')
-rw-r--r--net/xfrm/xfrm_policy.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index b8be51eb7e29..2118d6446630 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -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)