[PATCH 08/13] vfio/mdev: remove mtype_get_parent_dev

[Jason J. Herne]

On 6/28/22 01:14, Christoph Hellwig wrote:
> Just open code the dereferences in the only user.
> 
> Signed-off-by: Christoph Hellwig <hch at lst.de>
> Reviewed-by: Jason Gunthorpe <jgg at nvidia.com>
> Reviewed-by: Kevin Tian <kevin.tian at intel.com>
> Reviewed-by: Kirti Wankhede <kwankhede at nvidia.com>
> ---
>   drivers/s390/cio/vfio_ccw_ops.c |  3 +--
>   drivers/vfio/mdev/mdev_core.c   | 10 ----------
>   include/linux/mdev.h            |  2 --
>   3 files changed, 1 insertion(+), 14 deletions(-)
> 
> diff --git a/drivers/s390/cio/vfio_ccw_ops.c b/drivers/s390/cio/vfio_ccw_ops.c
> index 25b8d42a522ac..43d53736dfe3c 100644
> --- a/drivers/s390/cio/vfio_ccw_ops.c
> +++ b/drivers/s390/cio/vfio_ccw_ops.c
> @@ -88,8 +88,7 @@ static ssize_t available_instances_show(struct mdev_type *mtype,
>   					struct mdev_type_attribute *attr,
>   					char *buf)
>   {
> -	struct vfio_ccw_private *private =
> -		dev_get_drvdata(mtype_get_parent_dev(mtype));
> +	struct vfio_ccw_private *private = dev_get_drvdata(mtype->parent->dev);
>   
>   	return sprintf(buf, "%d\n", atomic_read(&private->avail));
Reviewed-by: Jason J. Herne <jjherne at linux.ibm.com>

-- 
-- Jason J. Herne (jjherne at linux.ibm.com)