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authorMichal Wrobel <xmxwx@asn.pl>2007-02-26 15:36:10 -0800
committerDavid S. Miller <davem@sunset.davemloft.net>2007-02-28 09:41:58 -0800
commit2c12a74cc4aeaebc378aa40ee11c7761a8ed05e0 (patch)
treecf234e9f4c5a8594c53107d6bf8e9a25787d49df
parent3a765aa528401c7aec2208f7ed1276b232b24c57 (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>
-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 f6ac65d3655..e16f1bba5df 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -400,6 +400,8 @@ 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