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Date:   Tue, 4 Jun 2019 08:05:54 +0200
From:   Christoph Hellwig <hch@lst.de>
To:     Jon Hunter <jonathanh@nvidia.com>
Cc:     Robin Murphy <robin.murphy@arm.com>,
        Christoph Hellwig <hch@lst.de>, Joerg Roedel <joro@8bytes.org>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Tom Lendacky <thomas.lendacky@amd.com>,
        iommu@lists.linux-foundation.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-tegra <linux-tegra@vger.kernel.org>
Subject: Re: [PATCH 07/26] iommu/dma: move the arm64 wrappers to common code
Message-ID: <20190604060554.GA14536@lst.de>
References: <20190422175942.18788-1-hch@lst.de> <20190422175942.18788-8-hch@lst.de> <06b331f0-7df7-a6cd-954c-789f89a0836d@arm.com> <acb46c7f-0855-de30-485f-a6242968f947@nvidia.com>
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On Mon, Jun 03, 2019 at 08:47:57PM +0100, Jon Hunter wrote:
> Since next-20190529 one of our tests for MMC has started failing, where
> the symptom is that the data written to the MMC does not match the
> source. Bisecting this is pointing to this commit. Unfortunately, I am
> not able to cleanly revert this on top of -next, but wanted to report
> this if case you have any ideas.

Does this fix your problem?

https://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git/commit/?h=generic-dma-ops&id=1b961423158caaae49d3900b7c9c37477bbfa9b3