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Re: [REGRESSION] Recent swiotlb DMA_FROM_DEVICE fixes break ath9k-based AP

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Hello.

On středa 23. března 2022 18:27:21 CET Linus Torvalds wrote:
> On Wed, Mar 23, 2022 at 12:19 AM Oleksandr Natalenko
> <oleksandr@xxxxxxxxxxxxxx> wrote:
> > These commits appeared in v5.17 and v5.16.15, and both kernels are
> > broken for me. I'm pretty confident these commits make the difference
> > since I've built both v5.17 and v5.16.15 without them, and it fixed
> > the issue.
> 
> Can you double-check (or just explicitly confirm if you already did
> that test) that you need to revert *both* of those commits, and it's
> the later "rework" fix that triggers it?

I can confirm that if I revert aa6f8dcbab47 only, but leave ddbd89deb7d3 in place, AP works. So, it seems that the latest "rework" triggers the issue for me.

Thanks.

-- 
Oleksandr Natalenko (post-factum)






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