Re: [PATCH][RFC] asm-generic:remove calling flush_write_buffers() in dma_sync_*_for_cpu

[Ming Lei]

2009/6/30 Arnd Bergmann <arnd@xxxxxxxx>:
> On Tuesday 30 June 2009, Alan Cox wrote:
> Well, not even that. dma-mapping-common.h only makes sense on architectures
> that have multiple dma-mapping implementations (parisc, mips, arm, powerpc,

It seems that there is only one dma-mmaping implementation on ARM, doesn't it?
Is it necessary that using dma-mapping-common.h on ARM?

> sparc, ia64 and x86, possibly alpha). All others including frv only need a
> nommu case anyway and would not use dma-mapping-common.h but could be
> changed to use something like the dma-mapping-linear.h I worked on recently.




-- 
Lei Ming
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