linux-kernel - Re: [PATCH] iommu/dma: Add support for DMA_ATTR_SYS

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Message-ID: <20191026053026.GA14545@lst.de>
Date:   Sat, 26 Oct 2019 07:30:26 +0200
From:   Christoph Hellwig <hch@....de>
To:     "Isaac J. Manjarres" <isaacm@...eaurora.org>
Cc:     iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        joro@...tes.org, hch@....de, m.szyprowski@...sung.com,
        robin.murphy@....com, will@...nel.org, pratikp@...eaurora.org,
        lmark@...eaurora.org
Subject: Re: [PATCH] iommu/dma: Add support for DMA_ATTR_SYS_CACHE

The definition makes very little sense.  Any without a user in the
same series it is a complete no-go anyway.