Re: [PATCH 08/10] vfio: Make vfio_device_ops pass a 'struct vfio_device *' instead of 'void *'

On Fri, Mar 12, 2021 at 01:42:38PM +0000, Liu, Yi L wrote:

quoted

-Each function is passed the device_data that was originally registered
+Each function is passed the vdev that was originally registered
 in the vfio_register_group_dev() call above.  This allows the bus driver
-an easy place to store its opaque, private data.  The open/release
+to obtain its private data using container_of().  The open/release

I think the is to let VFIO device drivers (e.g. vfio_pci driver) to obtain
its private data by using container_of instead of let the bus driver.
right?

vfio_pci is the "bus driver" in VFIO speak

It replaces the void * vfio_device_data() with container_of

Jason