Re: [Linaro-mm-sig] [RFC][PATCH 1/3] staging: ion: Move away from the DMA APIs for cache flushing

On Thu, May 26, 2016 at 11:59:22AM +0100, Russell King - ARM Linux wrote:

I _really_ hate seeing architecture internal functions being abused in drivers - architecture internal functions are there to implement the official kernel APIs and are not for drivers to poke about with.

Exactly - if drivers like drm and ion want to do something out side the current DMA API we need to add a proper API, not hack around the lack of one.