[PATCH] Fix ipv6 link down handling.

[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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Willy Tarreau <w@1wt.eu>

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index e383ac808b6447793eb827959182e4abb4285627..0d21d9645ea9bfe398eafa5a26b796f6e560c4ed 100644 (file)
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2451,6 +2451,7 @@ 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);