net: devlink: use devlink_port pointer instead of ndo_get_devlink_port

Use newly introduced devlink_port pointer instead of getting it calling
to ndo_get_devlink_port op.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net/core/devlink.c

@@ -12505,14 +12505,6 @@ static void __devlink_compat_running_version(struct devlink *devlink,
 	nlmsg_free(msg);
 }
 
-static struct devlink_port *netdev_to_devlink_port(struct net_device *dev)
-{
-	if (!dev->netdev_ops->ndo_get_devlink_port)
-		return NULL;
-
-	return dev->netdev_ops->ndo_get_devlink_port(dev);
-}
-
 void devlink_compat_running_version(struct devlink *devlink,
 				    char *buf, size_t len)
 {
@@ -12558,7 +12550,7 @@ int devlink_compat_phys_port_name_get(struct net_device *dev,
 	 */
 	ASSERT_RTNL();
 
-	devlink_port = netdev_to_devlink_port(dev);
+	devlink_port = dev->devlink_port;
 	if (!devlink_port)
 		return -EOPNOTSUPP;
 
@@ -12574,7 +12566,7 @@ int devlink_compat_switch_id_get(struct net_device *dev,
 	 * devlink_port instance cannot disappear in the middle. No need to take
 	 * any devlink lock as only permanent values are accessed.
 	 */
-	devlink_port = netdev_to_devlink_port(dev);
+	devlink_port = dev->devlink_port;
 	if (!devlink_port || !devlink_port->switch_port)
 		return -EOPNOTSUPP;
 

net/core/net-sysfs.c

@@ -532,7 +532,7 @@ static ssize_t phys_port_name_show(struct device *dev,
 	 * returning early without hitting the trylock/restart below.
 	 */
 	if (!netdev->netdev_ops->ndo_get_phys_port_name &&
-	    !netdev->netdev_ops->ndo_get_devlink_port)
+	    !netdev->devlink_port)
 		return -EOPNOTSUPP;
 
 	if (!rtnl_trylock())
@@ -562,7 +562,7 @@ static ssize_t phys_switch_id_show(struct device *dev,
 	 * because recurse is false when calling dev_get_port_parent_id.
 	 */
 	if (!netdev->netdev_ops->ndo_get_port_parent_id &&
-	    !netdev->netdev_ops->ndo_get_devlink_port)
+	    !netdev->devlink_port)
 		return -EOPNOTSUPP;
 
 	if (!rtnl_trylock())

net/ethtool/ioctl.c

@@ -44,16 +44,9 @@ struct ethtool_devlink_compat {
 
 static struct devlink *netdev_to_devlink_get(struct net_device *dev)
 {
-	struct devlink_port *devlink_port;
-
-	if (!dev->netdev_ops->ndo_get_devlink_port)
-		return NULL;
-
-	devlink_port = dev->netdev_ops->ndo_get_devlink_port(dev);
-	if (!devlink_port)
+	if (!dev->devlink_port)
 		return NULL;
-
-	return devlink_try_get(devlink_port->devlink);
+	return devlink_try_get(dev->devlink_port->devlink);
 }
 
 /*