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From: Christoph Hellwig <hch@lst.de>
To: linux-kernel@vger.kernel.org, m.szyprowski@samsung.com,
        robin.murphy@arm.com
Subject: clean up dma_declare_coherent_memory calling conventions
Date: Tue, 27 Jun 2017 13:17:25 -0700
Message-Id: <20170627201727.9008-1-hch@lst.de>
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Remove various unused flags, and return a reasonable error code.