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Date: Wed, 25 Apr 2018 01:55:59 -0700
From: Christoph Hellwig <hch@infradead.org>
To: Thierry Reding <treding@nvidia.com>
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Subject: Re: [Linaro-mm-sig] [PATCH 4/8] dma-buf: add peer2peer flag
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On Wed, Apr 25, 2018 at 09:56:43AM +0200, Thierry Reding wrote:
> And to add to the confusion, none of this seems to be an issue on 64-bit
> ARM where the generic DMA/IOMMU code from drivers/iommu/dma-iommu.c is
> used.

In the long term I want everyone to use that code.  Help welcome!