On Thu, Feb 09, 2023 at 12:59:58PM -0500, Matthew Rosato wrote: > really should highlight that). Otherwise, conditionally calling > iommu_domain_alloc(dev->bus) when !ops->domain_alloc_user (instead > of returning -EOPNOTSUPP) seems to restore the prior functionality > for me. Yes, that is right if the input user data is 0 length or full of 0s then we should call the normal driver function Jason
