Re: [PATCH v2 23/25] arch: remove ioremap_cache, replace with arch_memremap

[Christoph Hellwig]

On Fri, Jul 24, 2015 at 10:40:07PM -0400, Dan Williams wrote:
> Now that all call sites for ioremap_cache() have been converted to
> memremap(MEMREMAP_CACHE) we can now proceed with removing the
> implementation in the archs.  This amounts to replacing the per-arch
> ioremap_cache() implementation with arch_memremap.

Please have prototypes for arch_memremap and arch_memunmap in
linux/io.h so that we enforce common prototypes.  This also
forces arch_memunmap to be out of line which makes sense for such
a slow patch API.

Also while you're at it please convert the ioremap_cached implementations
on metag and unicore32 which looks like misspellings, fix up the comment
in arch/arm/mm/mmu.c and the documentation in Documentation/x86/pat.txt
to not longer refer to ioremap_cache.
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