From: Herbert Xu Date: Sat, 13 Mar 2010 20:23:29 +0000 (-0800) Subject: ipv6: Send netlink notification when DAD fails X-Git-Tag: upstream/snapshot3+hdmi~14680^2~257 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e2577a065832f2c6d108de2e027891bdb2d78924;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git ipv6: Send netlink notification when DAD fails If we are managing IPv6 addresses using DHCP, it would be nice for user-space to be notified if an address configured through DHCP fails DAD. Otherwise user-space would have to poll to see whether DAD succeeds. This patch uses the existing notification mechanism and simply hooks it into the DAD failure code path. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 6cf3ee1..3381b43 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -1380,6 +1380,8 @@ static void addrconf_dad_stop(struct inet6_ifaddr *ifp, int dad_failed) if (dad_failed) ifp->flags |= IFA_F_DADFAILED; spin_unlock_bh(&ifp->lock); + if (dad_failed) + ipv6_ifa_notify(0, ifp); in6_ifa_put(ifp); #ifdef CONFIG_IPV6_PRIVACY } else if (ifp->flags&IFA_F_TEMPORARY) {