linux-kernel - Re: [PATCH 07/26] iommu/dma: move the arm64 wrappers to common code

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Date:   Tue, 4 Jun 2019 08:05:54 +0200
From:   Christoph Hellwig <hch@....de>
To:     Jon Hunter <jonathanh@...dia.com>
Cc:     Robin Murphy <robin.murphy@....com>,
        Christoph Hellwig <hch@....de>, Joerg Roedel <joro@...tes.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Tom Lendacky <thomas.lendacky@....com>,
        iommu@...ts.linux-foundation.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-tegra <linux-tegra@...r.kernel.org>
Subject: Re: [PATCH 07/26] iommu/dma: move the arm64 wrappers to common code

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