linux-kernel - Re: [PATCH V5 2/3] mm: dmapool: Align to ARCH_DMA

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Sun, 17 Sep 2017 22:22:08 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Huacai Chen <chenhc@...ote.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Fuxin Zhang <zhangfx@...ote.com>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH V5 2/3] mm: dmapool: Align to ARCH_DMA_MINALIGN in
 non-coherent DMA mode

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.