[PATCH 2/13] vfio/mdev: embedd struct mdev_parent in the parent data structure

[Jason Gunthorpe]

On Tue, Jun 14, 2022 at 06:54:17AM +0200, Christoph Hellwig wrote:
> Simplify mdev_{un}register_device by requiring the caller to pass in
> a structure allocate as part of the parent device structure.  This
> removes the need for a list of parents and the separate mdev_parent
> refcount as we can simplify rely on the reference to the parent device.
> 
> Signed-off-by: Christoph Hellwig <hch at lst.de>
> Reviewed-by: Kevin Tian <kevin.tian at intel.com>
> ---
>  .../driver-api/vfio-mediated-device.rst       |  12 +-
>  Documentation/s390/vfio-ap.rst                |   2 +-
>  Documentation/s390/vfio-ccw.rst               |   2 +-
>  drivers/gpu/drm/i915/gvt/gvt.h                |   2 +
>  drivers/gpu/drm/i915/gvt/kvmgt.c              |   5 +-
>  drivers/s390/cio/cio.h                        |   2 +
>  drivers/s390/cio/vfio_ccw_ops.c               |   6 +-
>  drivers/s390/crypto/vfio_ap_ops.c             |   5 +-
>  drivers/s390/crypto/vfio_ap_private.h         |   1 +
>  drivers/vfio/mdev/mdev_core.c                 | 116 +++---------------
>  drivers/vfio/mdev/mdev_private.h              |  23 ----
>  drivers/vfio/mdev/mdev_sysfs.c                |   4 +-
>  include/linux/mdev.h                          |  15 ++-
>  samples/vfio-mdev/mbochs.c                    |   5 +-
>  samples/vfio-mdev/mdpy.c                      |   5 +-
>  samples/vfio-mdev/mtty.c                      |   6 +-
>  16 files changed, 65 insertions(+), 146 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg at nvidia.com>

Jason