[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>
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@ -400,6 +400,8 @@ static void dev_forward_change(struct inet6_dev *idev)
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ipv6_dev_mc_dec(dev, &addr);
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ipv6_dev_mc_dec(dev, &addr);
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}
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}
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for (ifa=idev->addr_list; ifa; ifa=ifa->if_next) {
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for (ifa=idev->addr_list; ifa; ifa=ifa->if_next) {
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if (ifa->flags&IFA_F_TENTATIVE)
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continue;
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if (idev->cnf.forwarding)
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if (idev->cnf.forwarding)
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addrconf_join_anycast(ifa);
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addrconf_join_anycast(ifa);
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else
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else
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