On Thu, Jul 18, 2019 at 03:03:15PM +0200, Arnd Bergmann wrote: > The inclusion comes from the recently added header check in commit > c93a0368aaa2 ("kbuild: do not create wrappers for header-test-y"). > > This just tries to include every header by itself to see if there are build > failures from missing indirect includes. We probably don't want to > add an exception for iomap.h there. I very much disagree with that check. We don't need to make every header compilable with a setup where it should not be included. That being said if you feel this is worth fixing I'd rather define SECTOR_SIZE/SECTOR_SHIFT unconditionally.