bridge: Dump vlan information from a bridge port

Using the RTM_GETLINK dump the vlan filter list of a given
bridge port.  The information depends on setting the filter
flag similar to how nic VF info is dumped.

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index d8690bfe63d4..f2bf5a197ea3 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -28,6 +28,7 @@ static int __vlan_add(struct net_port_vlans *v, u16 vid)
         }
 
         set_bit(vid, v->vlan_bitmap);
+        v->num_vlans++;
         return 0;
 }
 
@@ -44,6 +45,7 @@ static int __vlan_del(struct net_port_vlans *v, u16 vid)
         }
 
         clear_bit(vid, v->vlan_bitmap);
+        v->num_vlans--;
         if (bitmap_empty(v->vlan_bitmap, BR_VLAN_BITMAP_LEN)) {
                 if (v->port_idx)
                         rcu_assign_pointer(v->parent.port->vlan_info, NULL);