Re: remove the ->mapping_error method from dma_map_ops V2

Christoph Hellwig
2018-11-23T06:55:11Z

On Thu, Nov 22, 2018 at 09:55:25AM -0800, Linus Torvalds wrote:
> No, the big immediate benefit of allowing "return -EINVAL" etc is
> simply legibility and error avoidance.

Well, I can tweak the last patch to return -EINVAL from dma_mapping_error
instead of the old 1 is as bool true. The callers should all be fine,
although I'd have to audit them. Still wouldn't help with being able to
return different errors.