[IPV6] ip6_tunnel: release cached dst on change of tunnel params

The included patch fixes ip6_tunnel to release the cached dst entry
when the tunnel parameters (such as tunnel endpoints) are changed so
they are used immediatly for the next encapsulated packets.

Signed-off-by: Hugo Santos <hsantos@av.it.pt>
Acked-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index faea8a120ee2..48597538db3f 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -884,6 +884,7 @@ ip6ip6_tnl_change(struct ip6_tnl *t, struct ip6_tnl_parm *p)
         t->parms.encap_limit = p->encap_limit;
         t->parms.flowinfo = p->flowinfo;
         t->parms.link = p->link;
+        ip6_tnl_dst_reset(t);
         ip6ip6_tnl_link_config(t);
         return 0;
 }