Score can provide dummy functions if HAS_IOMEM and NO_IOMEM will be removed, even if we indeed have no IOMEM. Best, Lennox 2014-07-18 18:51 GMT+08:00 Richard Weinberger <richard@xxxxxx>: > Am 18.07.2014 12:44, schrieb Chen Gang: >> On 07/18/2014 03:35 PM, Richard Weinberger wrote: >>> Am 18.07.2014 02:36, schrieb Chen Gang: >>>> >>>> On 07/18/2014 02:09 AM, Richard Weinberger wrote: >>>>> Am 17.07.2014 12:48, schrieb Arnd Bergmann: >>>>>> AFAICT, NO_IOMEM only has a real purpose on UML these days. Could we take >>>>>> a shortcut here and make COMPILE_TEST depend on !UML? Getting random stuff >>>>>> to build on UML seems pointless to me and we special-case it in a number of >>>>>> places already. >>>>> >>>>> If UML is the only arch without io memory the dependency on !UML seems >>>>> reasonable to me. :-) >>>>> >>>> >>>> For me, if only uml left, I suggest to implement dummy functions within >>>> uml instead of let CONFIG_UML appear in generic include directory. And >>>> then remove all HAS_IOMEM and NO_IOMEM from kernel. >>> >>> Erm, this is something completely different. >>> I thought we're focusing on COMPILE_TEST? >>> >> >> COMPILE_TEST is none-architecture specific, but UML is. So in generic >> include folder, if we're focusing on choosing whether COMPILE_TEST or >> UML, for me, I will choose COMPILE_TEST. >> >> If we're not only focusing on COMPILE_TEST, for me, if something only >> depend on one architecture, I'd like to put them under "arch/*/" folder. >> >> Especially, after that, we can remove all HAS_IOMEM and NO_IOMEM, nobody >> has to think of them again. :-) > > And then we end up with a solution that on UML a lot of completely useless > drivers are build which fail in various interesting manners because you'll > add stubs for all kinds of io memory related functions to arch/um/? > We had this kind of discussion already. You'll need more than ioremap... > > I like Arnd's idea *much* more to make COMPILE_TEST depend on !UML. > > Thanks, > //richard -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
