On Sat, May 26, 2018 at 09:15:05PM -0700, Guenter Roeck wrote: > Good point. Maybe it would be better to limit the warning to SMP systems > instead of (unnecessarily) fixing drivers all over the place ?
No. The coherent_dma_mask is the mask used for dma_alloc_coherent and dma_alloc_attrs. It has nothing to do with cache coherent in SMP systems.
