Re: [PATCH v7 07/12] dma-mapping: introduce dma_has_iommu()

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On Sun, Oct 15, 2017 at 8:14 AM, Matan Barak <matanb@xxxxxxxxxxxxxxxxxx> wrote:
[..]
> IMHO, using iommu for that and causing DMA errors just because the
> lease broke isn't the right thing to do.

Yes, see the current proposal over in this thread:

https://lists.01.org/pipermail/linux-nvdimm/2017-October/012885.html
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