Re: [PATCH v4 8/8] vfio: Validate dma-buf revocation semantics

Jason Gunthorpe
2026-01-21T15:50:02Z

On Wed, Jan 21, 2026 at 02:47:29PM +0000, Pranjal Shrivastava wrote:
> But at the same time, I'd like to discuss if we should think about
> changing the dmabuf core, NULL op == success feels like relying on a bug

Agree, IMHO, it is surprising and counter intuitive in the kernel that
a NULL op means the feature is supported and default to success.

Jason