Re: [PATCH V5 2/3] mm: dmapool: Align to ARCH_DMA_MINALIGN in non-coherent DMA mode

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Subject: Re: [PATCH V5 2/3] mm: dmapool: Align to ARCH_DMA_MINALIGN in non-coherent DMA mode
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Sun, 17 Sep 2017 22:22:08 -0700
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Fuxin Zhang <zhangfx@xxxxxxxxxx>, linux-mm@xxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, stable@xxxxxxxxxxxxxxx
In-reply-to: <1505708548-4750-1-git-send-email-chenhc@lemote.com>
User-agent: Mutt/1.8.3 (2017-05-23)

The dmapool code uses dma_alloc_coherent to allocate each element,
and dma_alloc_coherent must align to ARCH_DMA_MINALIGN already.
If you implementation doesn't do that it needs to be fixed.

Follow-Ups:
- Re: [PATCH V5 2/3] mm: dmapool: Align to ARCH_DMA_MINALIGN innon-coherent DMA mode
  - From: 陈华才

References:
- [PATCH V5 2/3] mm: dmapool: Align to ARCH_DMA_MINALIGN in non-coherent DMA mode
  - From: Huacai Chen

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