Re: [Intel-gfx] [PATCH 05/10] vfio: Use IOMMU_CAP_ENFORCE_CACHE_COHERENCY for vfio_file_enforced_coherent()

Tian, Kevin
2022-11-03T04:38:26Z

> From: Jason Gunthorpe <jgg@nvidia.com>
> Sent: Tuesday, November 1, 2022 8:26 PM
> And this:
>
> /*
> * If the device does not have
> IOMMU_CAP_ENFORCE_CACHE_COHERENCY then
> * any domain later attached to it will also not support it. If the cap
> * is set then the iommu_domain eventually attached to the
> device/group
> * must must use a domain with enforce_cache_coherency().
> */

duplicated 'must'