From 063ed369c97f8de4cce23bf93bebd7ffacb542ff Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vladislav.yasevich@hp.com>
Date: Sun, 15 Jul 2007 00:16:35 -0700
Subject: [PATCH] [IPV6]: Call inet6addr_chain notifiers on link down

Currently if the link is brought down via ip link or ifconfig down,
the inet6addr_chain notifiers are not called even though all
the addresses are removed from the interface.  This caused SCTP
to add duplicate addresses to it's list.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/addrconf.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 24424c3b7dc0..06012920912a 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2475,6 +2475,7 @@ static int addrconf_ifdown(struct net_device *dev, int how)
 		write_unlock_bh(&idev->lock);
 
 		__ipv6_ifa_notify(RTM_DELADDR, ifa);
+		atomic_notifier_call_chain(&inet6addr_chain, NETDEV_DOWN, ifa);
 		in6_ifa_put(ifa);
 
 		write_lock_bh(&idev->lock);
-- 
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