]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
[IPV6]: Update MSS even if MTU is unchanged.
authorJim Paris <jim@jtan.com>
Fri, 1 Feb 2008 00:36:25 +0000 (16:36 -0800)
committerDavid S. Miller <davem@davemloft.net>
Fri, 1 Feb 2008 03:28:21 +0000 (19:28 -0800)
commit23717795bee15470b96f9b7aa5ecf4efe14c8e32
tree5c9f3d3fc0ef0cddd1af52737128185d90dda9ba
parentfa4d3c6210380c55cf7f295d28fd981fbcbb828c
[IPV6]: Update MSS even if MTU is unchanged.

This is needed because in ndisc.c, we have:

  static void ndisc_router_discovery(struct sk_buff *skb)
  {
  // ...
   if (ndopts.nd_opts_mtu) {
  // ...
   if (rt)
   rt->u.dst.metrics[RTAX_MTU-1] = mtu;

   rt6_mtu_change(skb->dev, mtu);
  // ...
  }

Since the mtu is set directly here, rt6_mtu_change_route thinks that
it is unchanged, and so it fails to update the MSS accordingly.  This
patch lets rt6_mtu_change_route still update MSS if old_mtu == new_mtu.

Signed-off-by: Jim Paris <jim@jtan.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv6/route.c