diff options
Diffstat (limited to 'net/ipv6/route.c')
| -rw-r--r-- | net/ipv6/route.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 194fe9d9cd85..2fd36c7dd143 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -3498,18 +3498,29 @@ static int fib6_ifdown(struct rt6_info *rt, void *p_arg) const struct net_device *dev = arg->dev; const struct net *net = dev_net(dev); - if (rt->dst.dev == dev && - rt != net->ipv6.ip6_null_entry && - (rt->rt6i_nsiblings == 0 || netdev_unregistering(dev) || - !rt->rt6i_idev->cnf.ignore_routes_with_linkdown)) { - rt->rt6i_nh_flags |= (RTNH_F_DEAD | RTNH_F_LINKDOWN); + if (rt->dst.dev != dev || rt == net->ipv6.ip6_null_entry) + return 0; + + switch (arg->event) { + case NETDEV_UNREGISTER: return -1; + case NETDEV_DOWN: + if (rt->rt6i_nsiblings == 0 || + !rt->rt6i_idev->cnf.ignore_routes_with_linkdown) + return -1; + rt->rt6i_nh_flags |= RTNH_F_DEAD; + /* fall through */ + case NETDEV_CHANGE: + if (rt->rt6i_flags & (RTF_LOCAL | RTF_ANYCAST)) + break; + rt->rt6i_nh_flags |= RTNH_F_LINKDOWN; + break; } return 0; } -static void rt6_sync_down_dev(struct net_device *dev, unsigned long event) +void rt6_sync_down_dev(struct net_device *dev, unsigned long event) { struct arg_netdev_event arg = { .dev = dev, |