From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Subject: various DMA mapping fixes for 4.21-rc1
Date: Wed,  2 Jan 2019 09:33:14 +0100
Message-ID: <20190102083319.12374-1-hch@lst.de>
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Cc: Corentin Labbe <clabbe.montjoie-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>
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Hi all,

this series fixes up some fallout from the changes in this merge window.
Patch 1 ensures dma-debug works correctly with the merge map_page /
map_single implementation, patch 4 makes sure the DMA API calls
are properly stubbed out for COMPILE_TEST builds on UML.  Patches 2 and
3 make patch 4 a little simpler, and patch 5 removes various exports
no needed now that we moved a lot of functionality out of line.