Re: [Linaro-acpi] [V2 PATCH 2/5] arm64 : Introduce support for ACPI _CCA object

[Arnd Bergmann]

On Tuesday 05 May 2015 11:09:38 Suravee Suthikulanit wrote:
> 
> However, codes in several places are making use of dma_map_ops without 
> checking if the ops are NULL (i.e. 
> include/asm-generic/dma-mapping-common.h and in arch-specific 
> implementation). If setting it to NULL is what we are planning to 
> support, we would need to scrub the current code to put NULL check. 
> Also, would you consider if that is safe to do going forward?
> 
> 

I mean the dma_mask pointer, not dma_map_ops.

	Arnd
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