Re: [PATCH] mm: export cma alloc and release

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To: Catalin Marinas <catalin.marinas@xxxxxxx>
Subject: Re: [PATCH] mm: export cma alloc and release
From: Christoph Hellwig <hch@xxxxxx>
Date: Sat, 5 Oct 2019 10:37:53 +0200
Cc: Mark Salyzyn <salyzyn@xxxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, kernel-team@xxxxxxxxxxx, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Yue Hu <huyue2@xxxxxxxxxx>, Mike Rapoport <rppt@xxxxxxxxxxxxx>, Will Deacon <will@xxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ryohei Suzuki <ryh.szk.cmnty@xxxxxxxxx>, Doug Berger <opendmb@xxxxxxxxx>, Andrey Konovalov <andreyknvl@xxxxxxxxxx>, Peng Fan <peng.fan@xxxxxxx>, linux-mm@xxxxxxxxx, Christoph Hellwig <hch@xxxxxx>, Robin Murphy <robin.murphy@xxxxxxx>
In-reply-to: <20191003085528.GB21629@arrakis.emea.arm.com>
References: <20191002212257.196849-1-salyzyn@android.com> <20191003085528.GB21629@arrakis.emea.arm.com>
User-agent: Mutt/1.5.17 (2007-11-01)

On Thu, Oct 03, 2019 at 09:55:28AM +0100, Catalin Marinas wrote:
> Aren't drivers supposed to use the DMA API for such allocations rather
> than invoking cma_*() directly?

Yes, they are.

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References:
- Re: [PATCH] mm: export cma alloc and release
  - From: Catalin Marinas

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