On Tue, 2023-03-14 at 13:37 +0100, Johannes Berg wrote: > On Tue, 2023-03-14 at 13:11 +0100, Niklas Schnelle wrote: > > --- a/arch/um/Kconfig > > +++ b/arch/um/Kconfig > > @@ -56,6 +56,7 @@ config NO_IOPORT_MAP > > > > config ISA > > bool > > + depends on HAS_IOPORT > > > > config ISA here is already unselectable, and nothing ever does "select > ISA" (only in some other architectures), so is there much point in this? > > I'm not even sure why this exists at all. You're right there's not much point and I dropped this for v4. I agree that probably the whole "config ISA" could be removed if it's always false anyway but that seems out of scope for this patch. > > But anyway, adding a dependency to a always-false symbol doesn't make it > less always-false :-) > > Acked-by: Johannes Berg <johannes@xxxxxxxxxxxxxxxx> # for ARCH=um Thanks > > > Certainly will be nice to get rid of this cruft for architectures that > don't have it. > > johannes Yes, also, for s390 the broken NULL + port number access in the generic inb()/outb() currently causes the only remaining clang warning on defconfig builds.