net: mscc: ocelot: rename ocelot_netdevice_port_event to ocelot_netdevice_changeupper

ocelot_netdevice_port_event treats a single event, NETDEV_CHANGEUPPER.
So we can remove the check for the type of event, and rename the
function to be more suggestive, since there already is a function with a
very similar name of ocelot_netdevice_event.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/mscc/ocelot_net.c

@@ -1110,8 +1110,7 @@ static int ocelot_port_obj_del(struct net_device *dev,
 	return ret;
 }
 
-static int ocelot_netdevice_port_event(struct net_device *dev,
-				       unsigned long event,
+static int ocelot_netdevice_changeupper(struct net_device *dev,
 					struct netdev_notifier_changeupper_info *info)
 {
 	struct ocelot_port_private *priv = netdev_priv(dev);
@@ -1120,8 +1119,6 @@ static int ocelot_netdevice_port_event(struct net_device *dev,
 	int port = priv->chip_port;
 	int err = 0;
 
-	switch (event) {
-	case NETDEV_CHANGEUPPER:
 	if (netif_is_bridge_master(info->upper_dev)) {
 		if (info->linking) {
 			err = ocelot_port_bridge_join(ocelot, port,
@@ -1139,10 +1136,6 @@ static int ocelot_netdevice_port_event(struct net_device *dev,
 			ocelot_port_lag_leave(ocelot, port,
 					      info->upper_dev);
 	}
-		break;
-	default:
-		break;
-	}
 
 	return err;
 }
@@ -1170,17 +1163,19 @@ static int ocelot_netdevice_event(struct notifier_block *unused,
 		}
 	}
 
+	if (event == NETDEV_CHANGEUPPER) {
 		if (netif_is_lag_master(dev)) {
 			struct net_device *slave;
 			struct list_head *iter;
 
 			netdev_for_each_lower_dev(dev, slave, iter) {
-			ret = ocelot_netdevice_port_event(slave, event, info);
+				ret = ocelot_netdevice_changeupper(slave, info);
 				if (ret)
 					goto notify;
 			}
 		} else {
-		ret = ocelot_netdevice_port_event(dev, event, info);
+			ret = ocelot_netdevice_changeupper(dev, info);
+		}
 	}
 
 notify: