From: Andy Gospodarek Date: Thu, 13 Aug 2015 14:39:00 +0000 (-0400) Subject: net: track link status of ipv6 nexthops X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=cea45e208d700e9d633a636384a49f19cda979b7;p=linux-beck.git net: track link status of ipv6 nexthops Add support to track current link status of ipv6 nexthops to match recent changes that added support for ipv4 nexthops. This takes a simple approach to track linkdown status for next-hops and simply checks the dev for the dst entry and sets proper flags that to be used in the netlink message. v2: drop use of rt6i_nhflags since it is not needed right now Signed-off-by: Andy Gospodarek Signed-off-by: Dinesh Dutt Signed-off-by: David S. Miller --- diff --git a/net/ipv6/route.c b/net/ipv6/route.c index c0fa61eba8f2..370f72785385 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -2887,6 +2887,8 @@ static int rt6_fill_node(struct net *net, else rtm->rtm_type = RTN_UNICAST; rtm->rtm_flags = 0; + if (!netif_carrier_ok(rt->dst.dev)) + rtm->rtm_flags |= RTNH_F_LINKDOWN; rtm->rtm_scope = RT_SCOPE_UNIVERSE; rtm->rtm_protocol = rt->rt6i_protocol; if (rt->rt6i_flags & RTF_DYNAMIC)