[PATCH RFC 1/5] dma/direct: turn ARCH_ZONE_DMA_BITS into a variable

[Christoph Hellwig]

On Mon, Oct 14, 2019 at 08:31:03PM +0200, Nicolas Saenz Julienne wrote:
> Some architectures, notably ARM, are interested in tweaking this
> depending on their runtime DMA addressing limitations.
> 
> Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne at suse.de>

Do you want me to pick this up for the 5.5 dma-mapping tree, or do you
want me to wait for the rest to settle?