Muli Ben-Yehuda wrote:
>> +#define DMA_64BIT_MASK      DMA_BIT_MASK(64)
>>     
>
> This one does not do what you mean. You need an explicit mask or a
> ~0ULL here.

Yeah, I was just about to comment on it.  Its possible the compiler
might decide to shift by x%64 = 0.

    J

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