net: devlink: remove netdev arg from devlink_port_type_eth_set()

Since devlink_port_type_eth_set() should no longer be called by any
driver with netdev pointer as it should rather use
SET_NETDEV_DEVLINK_PORT, remove the netdev arg. Add a warn to
type_clear()
Signed-off-by: NJiri Pirko <jiri@nvidia.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/mellanox/mlx4/main.c

@@ -3043,7 +3043,7 @@ static int mlx4_init_port_info(struct mlx4_dev *dev, int port)
 	 */
 	if (!IS_ENABLED(CONFIG_MLX4_EN) &&
 	    dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH)
-		devlink_port_type_eth_set(&info->devlink_port, NULL);
+		devlink_port_type_eth_set(&info->devlink_port);
 	else if (!IS_ENABLED(CONFIG_MLX4_INFINIBAND) &&
 		 dev->caps.port_type[port] == MLX4_PORT_TYPE_IB)
 		devlink_port_type_ib_set(&info->devlink_port, NULL);

include/net/devlink.h

@@ -1582,8 +1582,7 @@ int devlink_port_register(struct devlink *devlink,
 			  unsigned int port_index);
 void devl_port_unregister(struct devlink_port *devlink_port);
 void devlink_port_unregister(struct devlink_port *devlink_port);
-void devlink_port_type_eth_set(struct devlink_port *devlink_port,
-			       struct net_device *netdev);
+void devlink_port_type_eth_set(struct devlink_port *devlink_port);
 void devlink_port_type_ib_set(struct devlink_port *devlink_port,
 			      struct ib_device *ibdev);
 void devlink_port_type_clear(struct devlink_port *devlink_port);

net/core/devlink.c

@@ -10097,17 +10097,15 @@ static void __devlink_port_type_set(struct devlink_port *devlink_port,
  *	devlink_port_type_eth_set - Set port type to Ethernet
  *
  *	@devlink_port: devlink port
- *	@netdev: related netdevice
+ *
+ *	If driver is calling this, most likely it is doing something wrong.
  */
-void devlink_port_type_eth_set(struct devlink_port *devlink_port,
-			       struct net_device *netdev)
+void devlink_port_type_eth_set(struct devlink_port *devlink_port)
 {
-	if (!netdev)
-		dev_warn(devlink_port->devlink->dev,
-			 "devlink port type for port %d set to Ethernet without a software interface reference, device type not supported by the kernel?\n",
-			 devlink_port->index);
-
-	__devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_ETH, netdev,
+	dev_warn(devlink_port->devlink->dev,
+		 "devlink port type for port %d set to Ethernet without a software interface reference, device type not supported by the kernel?\n",
+		 devlink_port->index);
+	__devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_ETH, NULL,
 				false);
 }
 EXPORT_SYMBOL_GPL(devlink_port_type_eth_set);
@@ -10130,9 +10128,16 @@ EXPORT_SYMBOL_GPL(devlink_port_type_ib_set);
  *	devlink_port_type_clear - Clear port type
  *
  *	@devlink_port: devlink port
+ *
+ *	If driver is calling this for clearing Ethernet type, most likely
+ *	it is doing something wrong.
  */
 void devlink_port_type_clear(struct devlink_port *devlink_port)
 {
+	if (devlink_port->type == DEVLINK_PORT_TYPE_ETH)
+		dev_warn(devlink_port->devlink->dev,
+			 "devlink port type for port %d cleared without a software interface reference, device type not supported by the kernel?\n",
+			 devlink_port->index);
 	__devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_NOTSET, NULL,
 				false);
 }