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SubjectRe: linux-next: build failure after merge of the sound tree
On Fri, 17 Jul 2020 08:50:30 +0200,
Christoph Hellwig wrote:
>
> On Fri, Jul 17, 2020 at 08:34:47AM +0200, Takashi Iwai wrote:
> > On Fri, 17 Jul 2020 07:33:24 +0200,
> > Christoph Hellwig wrote:
> > >
> > > On Fri, Jul 17, 2020 at 01:01:12PM +1000, Stephen Rothwell wrote:
> > > > Hi all,
> > > >
> > > > After merging the sound tree, today's linux-next build (x86_64
> > > > allmodconfig) failed like this:
> > >
> > > No, the sound commit needs to be reverted. Drivers has absolutely not
> > > business poking into DMA layer internals.
> >
> > OK, I'll drop that stuff again. It was the thing posted in the thread
> > of DMA regression with AMD SEV on 5.8-rc1. Meanwhile it was fixed in
> > the proper Kconfig dependency.
>
> We have other x86 changes that will not support just remapping stuff
> ignoring the API in the pipe, so this will need to get sorted out. And
> with that I mean sorted out properly instead of poking into undocumented
> DMA API internals and coming to the wrong conclusions again..

OK, when a proper API (or some kconfig) is ready for referring from
the driver side, let me know. I'd love to keep the SG-buffer support
as much as possible, since HD-audio stuff has been used for a very old
machine with a small RAM.


thanks,

Takashi

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