[2.6.20.17 review 07/58] Fix ipv6 link down handling.

Willy Tarreau
2007-08-22T08:53:54Z

[-- Attachment #1: 0007-Fix-ipv6-link-down-handling.patch --]
[-- Type: text/plain, Size: 1006 bytes --]

[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>
---
net/ipv6/addrconf.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index e383ac8..0d21d96 100644
--- 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);
--
1.5.2.5

--