Re: [Intel-gfx] [PATCH 07/10] vfio/mdev: Allow the mdev_parent_ops to specify the device driver to bind

Greg Kroah-Hartman
2021-06-15T14:11:34Z

On Tue, Jun 15, 2021 at 03:35:16PM +0200, Christoph Hellwig wrote:
> From: Jason Gunthorpe <jgg@nvidia.com>
>
> This allows a mdev driver to opt out of using vfio_mdev.c, instead the
> driver will provide a 'struct mdev_driver' and register directly with the
> driver core.
>
> Much of mdev_parent_ops becomes unused in this mode:
> - create()/remove() are done via the mdev_driver probe()/remove()
> - mdev_attr_groups becomes mdev_driver driver.dev_groups
> - Wrapper function callbacks are replaced with the same ones from
> struct vfio_device_ops
>
> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Messy, but ok...

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>