Commit f9785950 authored Nov 07, 2025 by Jason Gunthorpe Committed by Alex Williamson Nov 12, 2025

vfio: Require drivers to implement get_region_info



Remove the fallback through the ioctl callback, no drivers use this now.

Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Pranjal Shrivastava <praan@google.com>
Reviewed-by: Mostafa Saleh <smostafa@google.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/14-v2-2a9e24d62f1b+e10a-vfio_get_region_info_op_jgg@nvidia.com


Signed-off-by: Alex Williamson <alex@shazbot.org>

parent e664067b

drivers/vfio/vfio_main.c

+4 −4

Original line number	Diff line number	Diff line
		@@ -1297,13 +1297,13 @@ static long vfio_device_fops_unl_ioctl(struct file *filep,
		break;

		case VFIO_DEVICE_GET_REGION_INFO:
		if (!device->ops->get_region_info)
		goto ioctl_fallback;
		if (unlikely(!device->ops->get_region_info))
		ret = -EINVAL;
		else
		ret = device->ops->get_region_info(device, uptr);
		break;

		default:
		ioctl_fallback:
		if (unlikely(!device->ops->ioctl))
		ret = -EINVAL;
		else