[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>

1 files changed, 1 insertions, 0 deletions

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);