On Tue, Aug 08, 2017 at 11:15:35AM +0200, Michael Moese wrote: > All memory allocation functions have a pendant for allocating zeroed > memory, but dmam_alloc_coherent does not have such a pendant. > However, it is easier to read dmam_zalloc_coherent than passing an extra > flag or, even worse, see memset() after the allocation. > This patch adds an inline function dmam_zalloc_coherent(), exactly like > the implementation of dma_zalloc_coherent().
I'm a bit worried about the __GFP_ZERO as we have lots of non-kmalloc implementations of these. But on the other hand we already implement dma_zalloc_coherent the same way, which means we'd already buggy. So I plan to apply this for 4.14, but I also plan to spend some time to implement all the existin alloc ops to make sure it's going to work fine.
