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Date: Sat, 5 Oct 2019 10:37:53 +0200
From: Christoph Hellwig <hch@lst.de>
To: Catalin Marinas <catalin.marinas@arm.com>
Cc: Mark Salyzyn <salyzyn@android.com>, linux-kernel@vger.kernel.org,
	kernel-team@android.com, Andrew Morton <akpm@linux-foundation.org>,
	Yue Hu <huyue2@yulong.com>, Mike Rapoport <rppt@linux.ibm.com>,
	Will Deacon <will@kernel.org>, Thomas Gleixner <tglx@linutronix.de>,
	Ryohei Suzuki <ryh.szk.cmnty@gmail.com>,
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	Andrey Konovalov <andreyknvl@google.com>,
	Peng Fan <peng.fan@nxp.com>, linux-mm@kvack.org,
	Christoph Hellwig <hch@lst.de>, Robin Murphy <robin.murphy@arm.com>
Subject: Re: [PATCH] mm: export cma alloc and release
Message-ID: <20191005083753.GA14691@lst.de>
References: <20191002212257.196849-1-salyzyn@android.com> <20191003085528.GB21629@arrakis.emea.arm.com>
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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.