> -----Original Message-----
> From: andriy.shevchenko@xxxxxxxxxxxxxxx
> <andriy.shevchenko@xxxxxxxxxxxxxxx>
> Sent: Monday, February 17, 2025 1:43 AM
> To: Borah, Chaitanya Kumar <chaitanya.kumar.borah@xxxxxxxxx>
> Cc: linux-serial@xxxxxxxxxxxxxxx; intel-gfx@xxxxxxxxxxxxxxxxxxxxx; intel-
> xe@xxxxxxxxxxxxxxxxxxxxx; Kurmi, Suresh Kumar
> <suresh.kumar.kurmi@xxxxxxxxx>; Saarinen, Jani <jani.saarinen@xxxxxxxxx>
> Subject: Re: Regression on linux-next (next-20250210)
>
>
> The fix landed upstream, will be in next Linux Next.
>
> c213375e3283 ("serial: 8250_dw: Call dw8250_quirks() conditionally")
Thank you for the response. We will wait for it to land in linux-next.
Regards
Chaitanya
>
>
> On Sat, Feb 15, 2025 at 04:16:58PM +0000, Borah, Chaitanya Kumar wrote:
> > Hello Andy,
> >
> > Hope you are doing well. I am Chaitanya from the linux graphics team in
> Intel.
> >
> > This mail is regarding a regression we are seeing in our CI runs[1] on linux-
> next repository.
> >
> > Since the version next-20250210 [2], many machines in our CI are unable to
> boot.
> >
> > Unfortunately, we have not been able to collect any logs (even from pstore).
> >
> > However after bisecting the tree, the following patch [3] seems to be the first
> "bad"
> > commit
> >
> > ``````````````````````````````````````````````````````````````````````
> > ```````````````````````````````````
> > commit bfd3d4a40f3905ec70b17dbfa9b78764e59e4b4f
> > Author: Andy Shevchenko mailto:andriy.shevchenko@xxxxxxxxxxxxxxx
> > Date: Mon Feb 3 14:14:56 2025 +0200
> >
> > serial: 8250_dw: Drop unneeded NULL checks in dw8250_quirks()
> >
> > Since platform data is being provided for all supported hardware,
> > no need to NULL check for it. Drop unneeded checks.
> >
> > ``````````````````````````````````````````````````````````````````````
> > ```````````````````````````````````
> >
> > We also verified that if we revert the patch the issue is not seen.
> >
> > Could you please check why the patch causes this regression and provide a
> fix if necessary?
> >
> > Thank you.
> >
> > Regards
> >
> > Chaitanya
> >
> > [1] https://intel-gfx-ci.01.org/tree/linux-next/combined-alt.html?
> > [2]
> > https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/co
> > mmit/?h=next-20250210 [3]
> > https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/co
> > mmit/?h=next-
> 20250210&id=bfd3d4a40f3905ec70b17dbfa9b78764e59e4b4f
> >
> >
>
> --
> With Best Regards,
> Andy Shevchenko
>
