vlan: advertise link netns via netlink

Assign rtnl_link_ops->get_link_net() callback so that IFLA_LINK_NETNSID is
added to rtnetlink messages.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 0 deletions

diff --git a/net/8021q/vlan_netlink.c b/net/8021q/vlan_netlink.c
index 8ac8a5cc2143..c92b52f37d38 100644
--- a/net/8021q/vlan_netlink.c
+++ b/net/8021q/vlan_netlink.c
@@ -238,6 +238,13 @@ nla_put_failure:
         return -EMSGSIZE;
 }
 
+static struct net *vlan_get_link_net(const struct net_device *dev)
+{
+        struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
+
+        return dev_net(real_dev);
+}
+
 struct rtnl_link_ops vlan_link_ops __read_mostly = {
         .kind           = "vlan",
         .maxtype        = IFLA_VLAN_MAX,
@@ -250,6 +257,7 @@ struct rtnl_link_ops vlan_link_ops __read_mostly = {
         .dellink        = unregister_vlan_dev,
         .get_size       = vlan_get_size,
         .fill_info      = vlan_fill_info,
+        .get_link_net   = vlan_get_link_net,
 };
 
 int __init vlan_netlink_init(void)