netdev - [patch net-next 10/13] net: devlink: add not cleared type warning to port unregister

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Message-Id: <20221001060145.3199964-11-jiri@resnulli.us>
Date:   Sat,  1 Oct 2022 08:01:42 +0200
From:   Jiri Pirko <jiri@...nulli.us>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
        edumazet@...gle.com, tariqt@...dia.com, moshe@...dia.com,
        saeedm@...dia.com
Subject: [patch net-next 10/13] net: devlink: add not cleared type warning to port unregister

From: Jiri Pirko <jiri@...dia.com>

By the time port unregister is called. There should be no type set. Make
sure that the driver cleared it before and warn in case it didn't. This
enforces symmetricity with type set and port register.

Signed-off-by: Jiri Pirko <jiri@...dia.com>
---
 net/core/devlink.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/core/devlink.c b/net/core/devlink.c
index 2f565976979f..cac0c7852159 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -9977,6 +9977,7 @@ EXPORT_SYMBOL_GPL(devlink_port_register);
 void devl_port_unregister(struct devlink_port *devlink_port)
 {
 	lockdep_assert_held(&devlink_port->devlink->lock);
+	WARN_ON(devlink_port->type != DEVLINK_PORT_TYPE_NOTSET);
 
 	devlink_port_type_warn_cancel(devlink_port);
 	devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_DEL);
-- 
2.37.1