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Subject: Re: [PATCH 3/8] vfio/mdev: Removed unused kref
To:     Parav Pandit <parav@mellanox.com>,
        "kvm@vger.kernel.org" <kvm@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "alex.williamson@redhat.com" <alex.williamson@redhat.com>
References: <1553296835-37522-1-git-send-email-parav@mellanox.com>
 <1553296835-37522-4-git-send-email-parav@mellanox.com>
From:   Kirti Wankhede <kwankhede@nvidia.com>
Message-ID: <235e0fbf-0ed7-211e-64fa-08a173db45c0@nvidia.com>
Date:   Tue, 26 Mar 2019 00:11:01 +0530
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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