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[IPV6]: anycast refcnt fix

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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>
This commit is contained in:
Michal Wrobel 2007-02-26 15:36:10 -08:00 committed by David S. Miller
parent 3a765aa528
commit 2c12a74cc4
1 changed files with 2 additions and 0 deletions
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2
net/ipv6/addrconf.c
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@ -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