On Tue, Apr 19, 2022 at 08:10:34PM -0300, Jason Gunthorpe wrote: > > - size_t size = end - start + 1; > > + size_t size; > > + > > + /* > > + * The mm_types defines vm_end as the first byte after the end address, > > + * different from IOMMU subsystem using the last address of an address > > + * range. So do a simple translation here by calculating size correctly. > > + */ > > + size = end - start; > > I would skip the comment though It's a bit of highlight here to help us remember in the future, per Robin's comments at my previous patch. Thanks! Nic