On Thu, Aug 22, 2024 at 10:17:56AM -0600, Mathieu Poirier wrote:
> > - domain = iommu_domain_alloc(dev->bus);
> > - if (!domain) {
> > + domain = iommu_paging_domain_alloc(dev);
>
> I'm a little hesitant here. Function iommu_domain_alloc() passes NULL two the
> second argument of __iommu_domain_alloc() while iommu_paging_domain_alloc()
> provides a 'dev'. I don't have any HW to test on and I am not familiar enough
> with the IOMMU subsystem to confidently more forward.
So long as dev is the device that will be initiating DMA this is a
correct change from the iommu subsystem perspective.
Jason
