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[3/8] vfio/mdev: Removed unused kref

Message ID 1553296835-37522-4-git-send-email-parav@mellanox.com (mailing list archive)
State New, archived
Headers show
Series vfio/mdev: Improve vfio/mdev core module | expand

Commit Message

Parav Pandit March 22, 2019, 11:20 p.m. UTC
Remove unused kref from the mdev_device structure.

Fixes: 7b96953bc640 ("vfio: Mediated device Core driver")
Signed-off-by: Parav Pandit <parav@mellanox.com>
---
 drivers/vfio/mdev/mdev_core.c    | 1 -
 drivers/vfio/mdev/mdev_private.h | 1 -
 2 files changed, 2 deletions(-)

Comments

Maxim Levitsky March 25, 2019, 11:50 a.m. UTC | #1
On Fri, 2019-03-22 at 18:20 -0500, Parav Pandit wrote:
> Remove unused kref from the mdev_device structure.
> 
> Fixes: 7b96953bc640 ("vfio: Mediated device Core driver")
> Signed-off-by: Parav Pandit <parav@mellanox.com>
> ---
>  drivers/vfio/mdev/mdev_core.c    | 1 -
>  drivers/vfio/mdev/mdev_private.h | 1 -
>  2 files changed, 2 deletions(-)
> 
> diff --git a/drivers/vfio/mdev/mdev_core.c b/drivers/vfio/mdev/mdev_core.c
> index 4f213e4d..3d91f62 100644
> --- a/drivers/vfio/mdev/mdev_core.c
> +++ b/drivers/vfio/mdev/mdev_core.c
> @@ -311,7 +311,6 @@ int mdev_device_create(struct kobject *kobj, struct device
> *dev, uuid_le uuid)
>  	mutex_unlock(&mdev_list_lock);
>  
>  	mdev->parent = parent;
> -	kref_init(&mdev->ref);
>  
>  	mdev->dev.parent  = dev;
>  	mdev->dev.bus     = &mdev_bus_type;
> diff --git a/drivers/vfio/mdev/mdev_private.h
> b/drivers/vfio/mdev/mdev_private.h
> index b5819b7..84b2b6c 100644
> --- a/drivers/vfio/mdev/mdev_private.h
> +++ b/drivers/vfio/mdev/mdev_private.h
> @@ -30,7 +30,6 @@ struct mdev_device {
>  	struct mdev_parent *parent;
>  	uuid_le uuid;
>  	void *driver_data;
> -	struct kref ref;
>  	struct list_head next;
>  	struct kobject *type_kobj;
>  	bool active;

When develping my nvme-mdev driver, I'll seen that unused kref too.
Dead code has to go.

Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>

Best regards,
	Maxim Levitsky
Kirti Wankhede March 25, 2019, 6:41 p.m. UTC | #2
On 3/23/2019 4:50 AM, Parav Pandit wrote:
> Remove unused kref from the mdev_device structure.
> 
> Fixes: 7b96953bc640 ("vfio: Mediated device Core driver")
> Signed-off-by: Parav Pandit <parav@mellanox.com>
> ---
>  drivers/vfio/mdev/mdev_core.c    | 1 -
>  drivers/vfio/mdev/mdev_private.h | 1 -
>  2 files changed, 2 deletions(-)
> 
> diff --git a/drivers/vfio/mdev/mdev_core.c b/drivers/vfio/mdev/mdev_core.c
> index 4f213e4d..3d91f62 100644
> --- a/drivers/vfio/mdev/mdev_core.c
> +++ b/drivers/vfio/mdev/mdev_core.c
> @@ -311,7 +311,6 @@ int mdev_device_create(struct kobject *kobj, struct device *dev, uuid_le uuid)
>  	mutex_unlock(&mdev_list_lock);
>  
>  	mdev->parent = parent;
> -	kref_init(&mdev->ref);
>  
>  	mdev->dev.parent  = dev;
>  	mdev->dev.bus     = &mdev_bus_type;
> diff --git a/drivers/vfio/mdev/mdev_private.h b/drivers/vfio/mdev/mdev_private.h
> index b5819b7..84b2b6c 100644
> --- a/drivers/vfio/mdev/mdev_private.h
> +++ b/drivers/vfio/mdev/mdev_private.h
> @@ -30,7 +30,6 @@ struct mdev_device {
>  	struct mdev_parent *parent;
>  	uuid_le uuid;
>  	void *driver_data;
> -	struct kref ref;
>  	struct list_head next;
>  	struct kobject *type_kobj;
>  	bool active;
> 

Yes, this should be removed.

Reviewed By: Kirti Wankhede <kwankhede@nvidia.com>

Thanks,
Kirti
diff mbox series

Patch

diff --git a/drivers/vfio/mdev/mdev_core.c b/drivers/vfio/mdev/mdev_core.c
index 4f213e4d..3d91f62 100644
--- a/drivers/vfio/mdev/mdev_core.c
+++ b/drivers/vfio/mdev/mdev_core.c
@@ -311,7 +311,6 @@  int mdev_device_create(struct kobject *kobj, struct device *dev, uuid_le uuid)
 	mutex_unlock(&mdev_list_lock);
 
 	mdev->parent = parent;
-	kref_init(&mdev->ref);
 
 	mdev->dev.parent  = dev;
 	mdev->dev.bus     = &mdev_bus_type;
diff --git a/drivers/vfio/mdev/mdev_private.h b/drivers/vfio/mdev/mdev_private.h
index b5819b7..84b2b6c 100644
--- a/drivers/vfio/mdev/mdev_private.h
+++ b/drivers/vfio/mdev/mdev_private.h
@@ -30,7 +30,6 @@  struct mdev_device {
 	struct mdev_parent *parent;
 	uuid_le uuid;
 	void *driver_data;
-	struct kref ref;
 	struct list_head next;
 	struct kobject *type_kobj;
 	bool active;