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authorMichal Wrobel <xmxwx@asn.pl>2007-03-08 08:38:52 +0100
committerAdrian Bunk <bunk@stusta.de>2007-03-08 08:38:52 +0100
commit6ba50d10b7b7d8d0b6ef7150b705897dbfd05507 (patch)
tree3f37be64cde8515a46037ea90197b9f2ac8fae11
parente61f6a0e0627eeaaaae5cef83f877e77f64cc607 (diff)
[IPV6]: anycast refcnt fix
This patch fixes a bug in Linux IPv6 stack which caused anycast address to be added to a device prior DAD has been completed. This led to incorrect reference count which resulted in infinite wait for unregister_netdevice completion on interface removal. Signed-off-by: Michal Wrobel <xmxwx@asn.pl> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Adrian Bunk <bunk@stusta.de>
-rw-r--r--net/ipv6/addrconf.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index e8f144171880..e9e9894d2cab 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -449,6 +449,8 @@ static void dev_forward_change(struct inet6_dev *idev)
ipv6_dev_mc_dec(dev, &addr);
}
for (ifa=idev->addr_list; ifa; ifa=ifa->if_next) {
+ if (ifa->flags&IFA_F_TENTATIVE)
+ continue;
if (idev->cnf.forwarding)
addrconf_join_anycast(ifa);
else