mlxsw: spectrum: Always decrement bridge's ref count

Since we only support one VLAN filtering bridge we need to associate a
reference count with it, so that when the last port netdev leaves it, we
would know that a different bridge can be offloaded to hardware.

When a LAG device is memeber in a bridge and port netdevs are leaving
the LAG, we should always decrement the bridge's reference count, as it's
incremented for any port in the LAG.

Fixes: 4dc236c31733 ("mlxsw: spectrum: Handle port leaving LAG while bridged")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 09ce451..a94daa8 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -2358,9 +2358,7 @@ static int mlxsw_sp_port_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port,
        if (mlxsw_sp_port->bridged) {
                mlxsw_sp_port_active_vlans_del(mlxsw_sp_port);
                mlxsw_sp_port_bridge_leave(mlxsw_sp_port, false);
-
-               if (lag->ref_count == 1)
-                       mlxsw_sp_master_bridge_dec(mlxsw_sp, NULL);
+               mlxsw_sp_master_bridge_dec(mlxsw_sp, NULL);
        }
 
        if (lag->ref_count == 1) {