On Fri, Feb 22, 2019 at 3:22 PM Rob Herring <rob.herring@xxxxxxxxxx> wrote: > Just a drive by comment, but IMO we should just get rid of HAS_IOMEM > altogether. It is really just a !UML option as I think every other > arch enables it. If folks really want to disable drivers on UML, just > disable the subsystems. I just got a build failure from S390 for the same thing so apparently there is S390 Linux without IOMEM. I have no idea how that works but whenever Arnd start talking to me about how S390 works my head start spinning. Yours, Linus Walleij