[Intel-gfx] [PATCH v6 17/24] vfio-iommufd: Make vfio_iommufd_bind() selectively return devid

[Tian, Kevin]

> From: Liu, Yi L <yi.l.liu at intel.com>
> Sent: Wednesday, March 8, 2023 9:29 PM
> 
> bind_iommufd() will generate an ID to represent this bond, it is needed
> by userspace for further usage. devid is stored in vfio_device_file to
> avoid passing devid pointer in multiple places.

after removing vfio_iommufd_bind() then the caller can directly get
the id when calling .bind_iommufd().