From: David Ahern Date: Mon, 13 Jun 2016 20:44:18 +0000 (-0700) Subject: net: ipv6: Do not add multicast route for l3 master devices X-Git-Tag: v4.8-rc1~140^2~346^2~1 X-Git-Url: http://git.cascardo.eti.br/?a=commitdiff_plain;h=ba46ee4c0ed122fa14aa2f5d6994c166a01ae2c0;p=cascardo%2Flinux.git net: ipv6: Do not add multicast route for l3 master devices L3 master devices are virtual devices similar to the loopback device. Link local and multicast routes for these devices do not make sense. The ipv6 addrconf code already skips adding a linklocal address; do the same for the mcast route. Signed-off-by: David Ahern Signed-off-by: David S. Miller --- diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 47f837a58e0a..b12553905e42 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -2254,7 +2254,7 @@ static struct inet6_dev *addrconf_add_dev(struct net_device *dev) return ERR_PTR(-EACCES); /* Add default multicast route */ - if (!(dev->flags & IFF_LOOPBACK)) + if (!(dev->flags & IFF_LOOPBACK) && !netif_is_l3_master(dev)) addrconf_add_mroute(dev); return idev;