Re: [PATCH 03/18] vfio/mdev: Simplify driver registration

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On Tue, 23 Mar 2021 14:55:20 -0300
Jason Gunthorpe <jgg@xxxxxxxxxx> wrote:

> This is only done once, we don't need to generate code to initialize a
> structure stored in the ELF .data segment. Fill in the three required
> .driver members directly instead of copying data into them during
> mdev_register_driver().
> 
> Further the to_mdev_driver() function doesn't belong in a public header,
> just inline it into the two places that need it. Finally, we can now
> clearly see that 'drv' derived from dev->driver cannot be NULL, firstly
> because the driver core forbids it, and secondly because NULL won't pass
> through the container_of(). Remove the dead code.
> 
> Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
> ---
>  Documentation/driver-api/vfio-mediated-device.rst |  5 +----
>  drivers/vfio/mdev/mdev_driver.c                   | 15 +++++++--------
>  drivers/vfio/mdev/vfio_mdev.c                     |  8 ++++++--
>  include/linux/mdev.h                              |  6 +-----
>  4 files changed, 15 insertions(+), 19 deletions(-)

Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx>




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