Re: [Xen-devel] [PATCH 2/3] x86: allow dma_get_required_mask() to be overridden

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 13.11.14 at 11:25, <JBeulich@xxxxxxxx> wrote:
>>>> On 12.11.14 at 16:25, <david.vrabel@xxxxxxxxxx> wrote:
>> --- a/arch/x86/include/asm/device.h
>> +++ b/arch/x86/include/asm/device.h
>> @@ -13,4 +13,6 @@ struct dev_archdata {
>>  struct pdev_archdata {
>>  };
>>  
>> +#define ARCH_HAS_DMA_GET_REQUIRED_MASK
> 
> Is there a particular reason you put this here rather than in
> dma-mapping.h?

Never mind - I see you need it that way so that struct dma_map_ops
gets the get_required_mask field defined, other than e.g. ia64 which
handles through another abstraction layer.

Jan


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