[RFC v2] dma-mapping: Use unsigned long for dma_attrs

On Wed, Jun 01, 2016 at 07:36:42AM +0200, Krzysztof Kozlowski wrote:

quoted

No really for this patch, but I would much prefer to document them next
to the code in the long run.  Also I really think these BIT() macros
are a distraction compared to the (1 << N) notation.

Not much difference to me but maybe plain number:
...	0x01u
...	0x02u
?

I prefer the little bit shifts, but even the explicit values are much
better than the obsfucating macros :)  Anyway, your patch and in the end
all three methods will get the work done.

quoted

I'd just kill this helper, much easier to simply open code it in the
caller.

Keeping it for now helps reducing the number of changes in the patch.
The patch will be quite big as it has to replace all the uses atomically.

I can get rid of the helper in consecutive patch.

Sounds fine.