On Tue, Jul 24, 2018 at 10:04:35PM +0800, YueHaibing wrote: > Sean Wang report dma_zalloc_coherent doesn't work as expect on his > armv7,the allocated mem is not zeroed.The reason is __alloc_from_pool > doesn't honor __GFP_ZERO.
Please explain the "why" a little more. All the explanations are in the referenced arm64 commit and should be mentioned here as well.
