Re: move the arm arch_dma_alloc implementation to common code

[Will Deacon]

On Fri, Nov 09, 2018 at 08:52:38AM +0100, Christoph Hellwig wrote:
> Can I get a quick review from the arm64 folks?  I think it should
> be fine there as it basically is a code move, but an additional pair
> or two of eyes always helps to weed out bugs.

I reviewed the arm64 parts, but it would be ideal if Robin could have a look
as well.

Will