devlink: Do not hold devlink mutex when initializing devlink fields
authorParav Pandit <parav@mellanox.com>
Tue, 21 Jul 2020 16:53:51 +0000 (19:53 +0300)
committerDavid S. Miller <davem@davemloft.net>
Tue, 21 Jul 2020 23:14:58 +0000 (16:14 -0700)
There is no need to hold a device global lock when initializing
devlink device fields of a devlink instance which is not yet part of the
devices list.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/core/devlink.c

index 6335e18..7df918a 100644 (file)
@@ -7421,9 +7421,9 @@ EXPORT_SYMBOL_GPL(devlink_alloc);
  */
 int devlink_register(struct devlink *devlink, struct device *dev)
 {
-       mutex_lock(&devlink_mutex);
        devlink->dev = dev;
        devlink->registered = true;
+       mutex_lock(&devlink_mutex);
        list_add_tail(&devlink->list, &devlink_list);
        devlink_notify(devlink, DEVLINK_CMD_NEW);
        mutex_unlock(&devlink_mutex);