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SubjectRe: [PATCH 2/2] dma-mapping: force unencryped devices are always addressing limited
On Wed, Nov 27, 2019 at 06:22:57PM +0000, Thomas Hellstrom wrote:
> > bool dma_addressing_limited(struct device *dev)
> > {
> > + if (force_dma_unencrypted(dev))
> > + return true;
> > return min_not_zero(dma_get_mask(dev), dev->bus_dma_limit) <
> > dma_get_required_mask(dev);
> > }
>
> Any chance to have the case
>
> (swiotlb_force == SWIOTLB_FORCE)
>
> also included?

We have a hard time handling that in generic code. Do we have any
good use case for SWIOTLB_FORCE not that we have force_dma_unencrypted?
I'd love to be able to get rid of it..

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