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net: ipv6: Do not add multicast route for l3 master devices

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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 <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern 2016-06-13 13:44:18 -07:00 committed by David S. Miller
parent cd2a9e62c8
commit ba46ee4c0e
1 changed files with 1 additions and 1 deletions
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2
net/ipv6/addrconf.c
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@ -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;