[PATCH 5.4 81/86] ipv6: set multicast flag on the multicast route

[Greg Kroah-Hartman]

From: Matteo Croce <mcr...@microsoft.com>

commit ceed9038b2783d14e0422bdc6fd04f70580efb4c upstream.

The multicast route ff00::/8 is created with type RTN_UNICAST:

  $ ip -6 -d route
  unicast ::1 dev lo proto kernel scope global metric 256 pref medium
  unicast fe80::/64 dev eth0 proto kernel scope global metric 256 pref medium
  unicast ff00::/8 dev eth0 proto kernel scope global metric 256 pref medium

Set the type to RTN_MULTICAST which is more appropriate.

Fixes: e8478e80e5a7 ("net/ipv6: Save route type in rt6_info")
Signed-off-by: Matteo Croce <mcr...@microsoft.com>
Signed-off-by: Jakub Kicinski <k...@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 net/ipv6/addrconf.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2452,7 +2452,7 @@ static void addrconf_add_mroute(struct n
                .fc_ifindex = dev->ifindex,
                .fc_dst_len = 8,
                .fc_flags = RTF_UP,
-               .fc_type = RTN_UNICAST,
+               .fc_type = RTN_MULTICAST,
                .fc_nlinfo.nl_net = dev_net(dev),
                .fc_protocol = RTPROT_KERNEL,
        };