On Tue, Nov 29, 2011 at 10:05:11PM +0000, Arnd Bergmann wrote:
> On Tuesday 29 November 2011, Michael S. Tsirkin wrote:
> > diff --git a/arch/tile/include/asm/io.h b/arch/tile/include/asm/io.h
> > index c9ea165..be6090d 100644
> > --- a/arch/tile/include/asm/io.h
> > +++ b/arch/tile/include/asm/io.h
> > @@ -204,7 +204,8 @@ static inline long ioport_panic(void)
> >
> > static inline void __iomem *ioport_map(unsigned long port, unsigned int len)
> > {
> > - return (void __iomem *) ioport_panic();
> > + pr_info("Trying to map an IO resource - it does not exit on tile.\n");
> > + return NULL;
> > }
>
> Why not just set CONFIG_NO_IOPORT and make this unavailable at compile time?
>
> Arnd
Well I think CONFIG_NO_IOPORT only has effect if you pull in asm-generic/io.h.
This might work but I have no idea. Presumably whoever wrote that architecture
considered and discarded setting GENERIC_IOMAP.
--
MST
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