Re: [PATCH] sparc: use asm-generic/scatterlist.h

[FUJITA Tomonori]

On Tue, 2 Mar 2010 14:38:31 +0100
Arnd Bergmann <arnd@xxxxxxxx> wrote:

> On Tuesday 02 March 2010, FUJITA Tomonori wrote:
> > Yeah, but IIRC, Alpha, x86_64 GART, parisc, and IA64 don't have
> > CONFIG_ option for IOMMU virtual merging. I prefer to avoid to adding
> > something like CONFIG_HAVE_IOMMU_VMERGE for them. If we add
> > CONFIG_HAVE_IOMMU_VMERGE to them, it's a bit strange not to add the
> > feature to disable virtual merging for them (I guess GART already has
> > the feature though).
> 
> While I think the runtime feature (actually a workaround for broken device
> drivers)

What does "broken device drivers" mean here?

> should be consistently used on all architectures, or removed
> entirely, it's orthogonal to this discussion.
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