On Thu, Dec 11, 2014 at 11:27:54PM +0100, Arnd Bergmann wrote:
> On Thursday 11 December 2014 21:37:34 Michael S. Tsirkin wrote:
> > if (flags & IORESOURCE_MEM) {
> > - if (flags & IORESOURCE_CACHEABLE)
> > + if (!force_nocache && (flags & IORESOURCE_CACHEABLE))
> > return ioremap(start, len);
> > return ioremap_nocache(start, len);
> > }
> >
>
> ioremap is the same as ioremap_nocache, so this doesn't really make any
> sense. IORESOURCE_CACHEABLE is practically only set for ROM bars, which
> we rarely map.
>
> Arnd
Hmm I think you are right.
It's an old patch - I think at one point in time we did set it when we
now set IORESOURCE_PREFETCH.
I'll drop this parameter.
--
MST
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