On Tue, Apr 29, 2025 at 06:25:06PM +0200, David Hildenbrand wrote: > I do wonder why we even have to lookup the memtype again if the caller > apparently reserved it (which implied checking it). All a bit weird.
Maybe it's because the memtype info isn't always visible to the upper layers, e.g. default pci_iomap() for MMIOs doesn't need to specify anything on cache mode. There's some pci_iomap_wc() variance, but still looks like only the internal has full control.. -- Peter Xu
