Re: [PATCH] i2c: mux: avoid WARN on benign symlink creation failures

[Farhad Alemi]

Apologies for the delay in response; upon our run, the patched kernel
(your 2 patches augmented & applied on 28924df2a08f) no longer panics
on the attached reproducer.

Thanks!

On Sun, Aug 30, 2026 at 2:14 PM Peter Rosin <peda@xxxxxxxxxxxxxx> wrote:
>
> Den Sun, Aug 30, 2026 at 09:13:24PM +0200, skrev Andi Shyti:
> > Hi Peter,
> >
> > On Sun, Aug 30, 2026 at 06:13:03AM +0200, Peter Rosin wrote:
> > > WARN() is a bit harsh and causes a crash for panic-on-warn users. Degrade
> > > the error reporting to ordinary dev_err() calls.
> > >
> > > Reported-by: Farhad Alemi <farhad.alemi@xxxxxxxxxxxx>
> > > Link: https://lore.kernel.org/all/CA+0ovCij3QDLRzt8CwpjBy-BbJ5Zf5SV9w9QZXz8uD3Agws31g@xxxxxxxxxxxxxx/
> > > Signed-off-by: Peter Rosin <peda@xxxxxxxxxxxxxx>
> > > ---
> > >
> > > Hi Farhad,
> > >
> > > I assume this patch helps?
> >
> > I sent this patch for a quick test:
> >
> > https://lore.kernel.org/all/20260828135950.454799-1-andi.shyti@xxxxxxxxxx/
> >
> > Maybe they can be taken together, as I agree not to fire a WARN()
> > there.
>
> Hi Andi,
>
> [sorry for droping you from cc, that was unintentional]
>
> Yes, sure! And fixing the root cause is of course always nice, good one!
>
> Cheers,
> Peter

Attachment: reproducer.c
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Attachment: 185.patch
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