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IPv6: only notify protocols if address is compeletely gone

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The notifier for address down should only be called if address is completely
gone, not just being marked as tentative on link transistion. The code
in net-next would case bonding/sctp/s390 to see address disappear on link
down, but they would never see it reappear on link up.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
stephen hemminger 2010-04-12 05:41:34 +00:00 committed by David S. Miller
parent d1f84c63a4
commit 8595805aaf
1 changed files with 3 additions and 1 deletions
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4
net/ipv6/addrconf.c
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@ -2715,7 +2715,9 @@ static int addrconf_ifdown(struct net_device *dev, int how)
} }
__ipv6_ifa_notify(RTM_DELADDR, ifa); __ipv6_ifa_notify(RTM_DELADDR, ifa);
atomic_notifier_call_chain(&inet6addr_chain, NETDEV_DOWN, ifa); if (ifa->dead)
atomic_notifier_call_chain(&inet6addr_chain,
NETDEV_DOWN, ifa);
in6_ifa_put(ifa); in6_ifa_put(ifa);
write_lock_bh(&idev->lock); write_lock_bh(&idev->lock);