Re: [PATCH v4 0/2] Remove vfio_device_get_from_dev()

[Alex Williamson <alex.williamson@redhat.com>]

On Thu,  5 May 2022 20:21:38 -0300
Jason Gunthorpe <jgg@nvidia.com> wrote:

> Use drvdata instead of searching to find the struct vfio_device for the
> pci_driver callbacks.
> 
> This applies on top of the gvt series and at least rc3 - there are no
> conflicts with the mdev vfio_group series, or the iommu series.
> 
> v4:
>  - Put back missing rebase hunk for vfio_group_get_from_dev()
>  - Move the WARN_ON to vfio_pci_core_register_device() and move the
>    dev_set_drvdata() to match
> v3: https://lore.kernel.org/r/0-v3-4adf6c1b8e7c+170-vfio_get_from_dev_jgg@nvidia.com
>  - Directly access the drvdata from vfio_pci_core by making drvdata always
>    point to the core struct. This will help later patches adding PM
>    callbacks as well.
> v2: https://lore.kernel.org/r/0-v2-0f36bcf6ec1e+64d-vfio_get_from_dev_jgg@nvidia.com
>  - Rebase on the vfio_mdev_no_group branch
>  - Delete vfio_group_get_from_dev() as well due to the rebase
> v1: https://lore.kernel.org/r/0-v1-7f2292e6b2ba+44839-vfio_get_from_dev_jgg@nvidia.com
> 
> Jason Gunthorpe (2):
>   vfio/pci: Have all VFIO PCI drivers store the vfio_pci_core_device in
>     drvdata
>   vfio/pci: Remove vfio_device_get_from_dev()
> 
>  .../vfio/pci/hisilicon/hisi_acc_vfio_pci.c    | 15 +++++--
>  drivers/vfio/pci/mlx5/main.c                  | 15 +++++--
>  drivers/vfio/pci/vfio_pci.c                   |  6 ++-
>  drivers/vfio/pci/vfio_pci_core.c              | 36 +++++-----------
>  drivers/vfio/vfio.c                           | 41 +------------------
>  include/linux/vfio.h                          |  2 -
>  include/linux/vfio_pci_core.h                 |  3 +-
>  7 files changed, 39 insertions(+), 79 deletions(-)

Applied to vfio next branch for v5.19.  Thanks,

Alex