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    Subject[2.6.20.17 review 07/58] 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>
    ---
    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
    --
    -
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