From: Yan Zheng <yanzheng@21cn.com>

I think the second parameter of addrconf_ifdown() should be 0 for event
NETDEV_CHANGEMTU.

Signed-off-by: Yan Zheng <yanzheng@21cn.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 net/ipv6/addrconf.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff -puN net/ipv6/addrconf.c~the-second-param-of-addrconf_ifdown-in-function-addrconf_notify net/ipv6/addrconf.c
--- devel/net/ipv6/addrconf.c~the-second-param-of-addrconf_ifdown-in-function-addrconf_notify	2005-11-06 23:42:01.000000000 -0800
+++ devel-akpm/net/ipv6/addrconf.c	2005-11-06 23:42:01.000000000 -0800
@@ -2014,7 +2014,7 @@ static int addrconf_notify(struct notifi
 			   stop IPv6 on this interface.
 			 */
 			if (dev->mtu < IPV6_MIN_MTU)
-				addrconf_ifdown(dev, event != NETDEV_DOWN);
+				addrconf_ifdown(dev, 0);
 		}
 		break;
 
@@ -2032,7 +2032,7 @@ static int addrconf_notify(struct notifi
 		/*
 		 *	Remove all addresses from this interface.
 		 */
-		addrconf_ifdown(dev, event != NETDEV_DOWN);
+		addrconf_ifdown(dev, event == NETDEV_UNREGISTER);
 		break;
 	case NETDEV_CHANGE:
 		break;
_