RE: [PATCH v4 03/19] vfio: Accept vfio device file in the driver facing kAPI

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> From: Liu, Yi L <yi.l.liu@xxxxxxxxx>
> Sent: Tuesday, February 21, 2023 11:48 AM
> 
>  /**
>   * vfio_file_is_valid - True if the file is valid vfio file
>   * @file: VFIO group file or VFIO device file
>   */
>  bool vfio_file_is_valid(struct file *file)
>  {
> -	return vfio_group_from_file(file);
> +	return vfio_group_from_file(file) ||
> +	       vfio_device_from_file(file);
>  }
>  EXPORT_SYMBOL_GPL(vfio_file_is_valid);

Following previous Alex's comment I'd leave pci hot reset path
to continue calling vfio_file_is_group() at this point so the uAPI
semantics is not changed here before patch 9 comes to properly
handle device fd in that path.




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