linux-kernel - make dma_addressing_limited work for memory encryption setups

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Message-Id: <20191127144006.25998-1-hch@lst.de>
Date:   Wed, 27 Nov 2019 15:40:04 +0100
From:   Christoph Hellwig <hch@....de>
To:     Thomas Hellstrom <thellstrom@...are.com>
Cc:     Christian König <christian.koenig@....com>,
        Tom Lendacky <thomas.lendacky@....com>,
        iommu@...ts.linux-foundation.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: make dma_addressing_limited work for memory encryption setups

Hi all,

this little series fixes dma_addressing_limited to return true for
systems that use bounce buffers due to memory encryption.