linux-kernel - revert dma direct internals abuse

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Date:   Mon,  8 Apr 2019 12:55:24 +0200
From:   Christoph Hellwig <hch@....de>
To:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Thomas Hellstrom <thellstrom@...are.com>
Cc:     Deepak Rawat <drawat@...are.com>, iommu@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org
Subject: revert dma direct internals abuse

Hi Linus,

unfortunately it took less than a merge window for the:

/*
 * All the dma_direct_* declarations are here just for the indirect call bypass,
 * and must not be used directly drivers!
 */

warning in dma-mapping.h to be ignored.  This series reverts the offender
to keep our API clean.

Thomas: please talk me first about your needs and I'll be happy to figure out
a proper API for what you want to do.