Merge branch 'dsa-isolation-prep'

Vladimir Oltean says:

====================
DSA preparations for FDB isolation between bridges

This series makes 2 small changes to DSA's SWITCHDEV_FDB_{ADD,DEL}_TO_DEVICE
handler, which will make it possible to offer switch drivers a stable
association between a FDB entry and a bridge device in a future series.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

net/dsa/port.c

@@ -380,6 +380,8 @@ void dsa_port_pre_bridge_leave(struct dsa_port *dp, struct net_device *br)
 	switchdev_bridge_port_unoffload(brport_dev, dp,
 					&dsa_slave_switchdev_notifier,
 					&dsa_slave_switchdev_blocking_notifier);
+
+	dsa_flush_workqueue();
 }
 
 void dsa_port_bridge_leave(struct dsa_port *dp, struct net_device *br)

net/dsa/slave.c

@@ -2448,7 +2448,6 @@ static void dsa_slave_switchdev_event_work(struct work_struct *work)
 		break;
 	}
 
-	dev_put(switchdev_work->dev);
 	kfree(switchdev_work);
 }
 
@@ -2521,8 +2520,6 @@ static int dsa_slave_fdb_event(struct net_device *dev,
 	switchdev_work->vid = fdb_info->vid;
 	switchdev_work->host_addr = host_addr;
 
-	/* Hold a reference for dsa_fdb_offload_notify */
-	dev_hold(dev);
 	dsa_schedule_work(&switchdev_work->work);
 
 	return 0;