Re: 5.10 backport request: ASoC: Intel: sof_rt5682: shrink platform_id names below 20 characters

["Michał Górny" <mgorny@gentoo.org>]

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On Fri, 2025-08-29 at 15:55 +0200, Greg KH wrote:
> On Fri, Aug 29, 2025 at 09:09:33AM +0200, Michał Górny wrote:
> > Hello,
> > 
> > On Fri, 2025-08-29 at 08:03 +0200, Michał Górny wrote:
> > > Hello,
> > > 
> > > I would like to request backporting the following patch to 5.10 series:
> > > 
> > >   590cfb082837cc6c0c595adf1711330197c86a58
> > >   ASoC: Intel: sof_rt5682: shrink platform_id names below 20 characters
> > > 
> > > The patch seems to be already present in 5.15 and newer branches, and
> > > its lack seems to be causing out-of-bounds read.  I've hit it in the
> > > wild while trying to install 5.10.241 on i686:
> > > 
> > >   sh /var/tmp/portage/sys-kernel/gentoo-kernel-5.10.241/work/linux-5.10/scripts/depmod.sh depmod 5.10.241-gentoo-dist
> > > depmod: FATAL: Module index: bad character '�'=0x80 - only 7-bit ASCII is supported:
> > > platform:jsl_rt5682_max98360ax�
> > > 
> > 
> > I'm sorry, I should've waited for my test results first.  Looks like
> > this patch alone is insufficient.  Looking at 5.15 stable branch, I see
> > that we probably need:
> > 
> >     ASoC: Intel: bxt_da7219_max98357a: shrink platform_id below 20 characters
> >     ASoC: Intel: sof_rt5682: shrink platform_id names below 20 characters
> >     ASoC: Intel: glk_rt5682_max98357a: shrink platform_id below 20 characters
> >     ASoC: Intel: kbl_da7219_max98357a: shrink platform_id below 20 characters
> >     ASoC: Intel: sof_da7219_max98373: shrink platform_id below 20 characters
> >     ASoC: Intel: sof_da7219_mx98360a: fail to initialize soundcard
> >     ASoC: Intel: Fix platform ID matching
> > 
> > Unless I'm mistaken, the firt series are part of the merge commit
> > 98c69fcc9f5902b0c340acdbbfa365464efc52d2.  The followup fixes are:
> > 
> >     0f32d9eb38c13c32895b5bf695eac639cee02d6c
> >     f4eeaed04e861b95f1f2c911263f2fcaa959c078
> > 
> > I didn't find anything else that seemed obviously elevant, but I didn't
> > dug deep.  With these backports, I can build 5.10.241 fine -- but I
> > don't have any hardware to test these drivers.
> 
> So what exact commits are needed and in what order?  Can you just send
> tested backports to us so that we know we got it right?

Would it be okay if I cherry-picked them from 5.15.y rather than from
master?

-- 
Best regards,
Michał Górny

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