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From:   Christoph Hellwig <hch@lst.de>
To:     Pawel Osciak <pawel@osciak.com>,
        Marek Szyprowski <m.szyprowski@samsung.com>,
        Kyungmin Park <kyungmin.park@samsung.com>,
        =?UTF-8?q?Niklas=20S=C3=B6derlund?= 
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Cc:     Russell King <linux@armlinux.org.uk>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        iommu@lists.linux-foundation.org,
        linux-arm-kernel@lists.infradead.org,
        linuxppc-dev@lists.ozlabs.org, linux-media@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: fix a layering violation in videobuf2 and improve dma_map_resource
Date:   Fri, 11 Jan 2019 19:17:28 +0100
Message-Id: <20190111181731.11782-1-hch@lst.de>
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Hi all,

this series fixes a rather gross layering violation in videobuf2, which
pokes into arm DMA mapping internals to get a DMA address for memory that
does not have a page structure, and to do so fixes up the dma_map_resource
implementation to be practically useful.