On 04/06/2019 07:05, Christoph Hellwig wrote:
> 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

Yes I can confirm with this patch on today's -next the issue is no
longer seen, and reverting this patch on top of today's -next causes the
problem to occur again. So yes this fixes my problem.


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