openvswitch: introduce rtnl ops stub

This stub now allows userspace to see IFLA_INFO_KIND for ovs master and
IFLA_INFO_SLAVE_KIND for slave.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 1 deletions

diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 0d407bca81e3..fe95b6c224a7 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -2054,10 +2054,14 @@ static int __init dp_init(void)
 
         pr_info("Open vSwitch switching datapath\n");
 
-        err = ovs_flow_init();
+        err = ovs_internal_dev_rtnl_link_register();
         if (err)
                 goto error;
 
+        err = ovs_flow_init();
+        if (err)
+                goto error_unreg_rtnl_link;
+
         err = ovs_vport_init();
         if (err)
                 goto error_flow_exit;
@@ -2084,6 +2088,8 @@ error_vport_exit:
         ovs_vport_exit();
 error_flow_exit:
         ovs_flow_exit();
+error_unreg_rtnl_link:
+        ovs_internal_dev_rtnl_link_unregister();
 error:
         return err;
 }
@@ -2096,6 +2102,7 @@ static void dp_cleanup(void)
         rcu_barrier();
         ovs_vport_exit();
         ovs_flow_exit();
+        ovs_internal_dev_rtnl_link_unregister();
 }
 
 module_init(dp_init);