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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?= <niklas.soderlund+renesas@ragnatech.se>
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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Cc: Russell King <linux@armlinux.org.uk>, linux-kernel@vger.kernel.org,
 iommu@lists.linux-foundation.org, Mauro Carvalho Chehab <mchehab@kernel.org>,
 linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org,
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 <linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org>

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.