diff options
| author | Michal Wrobel <xmxwx@asn.pl> | 2007-02-27 11:12:45 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-03-09 10:50:27 -0800 |
| commit | 74ba050ddee2ade5fcdad88433c26ffea7034b13 (patch) | |
| tree | 0bd94a0ffb8a0cd2073cfed656edaabab58fb9a9 /net | |
| parent | 2e8c347d749bc09d21917b2f23fa84cb375e586b (diff) | |
Don't add anycast reference to device multiple times
[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: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv6/addrconf.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index e3854696988d..58cb669a27ca 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -469,6 +469,8 @@ 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 |