Re: [PATCH v7 6/9] vfio: Mark cdev usage in vfio_device

[Jason Gunthorpe <jgg@nvidia.com>]

On Fri, Jun 02, 2023 at 05:15:12AM -0700, Yi Liu wrote:
> This can be used to differentiate whether to report group_id or devid in
> the revised VFIO_DEVICE_GET_PCI_HOT_RESET_INFO ioctl. At this moment, no
> cdev path yet, so the vfio_device_cdev_opened() helper always returns false.
> 
> Reviewed-by: Kevin Tian <kevin.tian@intel.com>
> Tested-by: Terrence Xu <terrence.xu@intel.com>
> Signed-off-by: Yi Liu <yi.l.liu@intel.com>
> ---
>  include/linux/vfio.h | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/include/linux/vfio.h b/include/linux/vfio.h
> index 2c137ea94a3e..2a45853773a6 100644
> --- a/include/linux/vfio.h
> +++ b/include/linux/vfio.h
> @@ -139,6 +139,11 @@ int vfio_iommufd_emulated_attach_ioas(struct vfio_device *vdev, u32 *pt_id);
>  	((int (*)(struct vfio_device *vdev, u32 *pt_id)) NULL)
>  #endif
>  
> +static inline bool vfio_device_cdev_opened(struct vfio_device *device)
> +{
> +	return false;
> +}

This and the two hunks in the other two patches that use this function
should be folded into the cdev series, probably just flattened to one
patch

Jason