[PATCH 4/7] dma-mapping: Always provide dma_default_coherent

[Robin Murphy]

On 2023-02-21 17:58, Christoph Hellwig wrote:
> On Tue, Feb 21, 2023 at 12:46:10PM +0000, Jiaxun Yang wrote:
>> dma_default_coherent can be useful for determine default coherency
>> even on arches without noncoherent support.
> 
> How?

Indeed, "default" is conceptually meaningless when there is no possible 
alternative :/

Robin.