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IPv6: only notify protocols if address is compeletely gone

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>
stephen hemminger 15 년 전
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8595805aaf
1개의 변경된 파일3개의 추가작업 그리고 1개의 파일을 삭제
  1. 3 1
      net/ipv6/addrconf.c

+ 3 - 1
net/ipv6/addrconf.c

@@ -2715,7 +2715,9 @@ static int addrconf_ifdown(struct net_device *dev, int how)
 		}
 
 		__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);
 
 		write_lock_bh(&idev->lock);