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From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: Dan Williams <dan.j.williams@intel.com>,
        Herbert Xu <herbert@gondor.apana.org.au>, linux-crypto@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: scatterlist cleanups
Date: Fri,  7 Aug 2015 18:15:10 +0200
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This series contains various scatterlist cleanups.  It makes the chained
scatterlist helpers generally available, even if a architecture doesn't
allow a DMA mapping for it, and changes two callers to make use of this
as well as cleans up various opencoded access to scatterlist internals.

A large part of this work is based on older patches from Dan.