devlink: Simplify devlink_pernet_pre_exit call

The devlink_pernet_pre_exit() will be called if net namespace exits.

That routine is relevant for devlink instances that were assigned to
that namespaces first. This assignment is possible only with the following
command: "devlink reload DEV netns ...", which already checks reload support.
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/core/devlink.c

@@ -11392,9 +11392,10 @@ static void __net_exit devlink_pernet_pre_exit(struct net *net)
 	 */
 	mutex_lock(&devlink_mutex);
 	list_for_each_entry(devlink, &devlink_list, list) {
-		if (net_eq(devlink_net(devlink), net)) {
-			if (WARN_ON(!devlink_reload_supported(devlink->ops)))
+		if (!net_eq(devlink_net(devlink), net))
 			continue;
+
+		WARN_ON(!devlink_reload_supported(devlink->ops));
 		err = devlink_reload(devlink, &init_net,
 				     DEVLINK_RELOAD_ACTION_DRIVER_REINIT,
 				     DEVLINK_RELOAD_LIMIT_UNSPEC,
@@ -11402,7 +11403,6 @@ static void __net_exit devlink_pernet_pre_exit(struct net *net)
 		if (err && err != -EOPNOTSUPP)
 			pr_warn("Failed to reload devlink instance into init_net\n");
 	}
-	}
 	mutex_unlock(&devlink_mutex);
 }