The fix landed upstream, will be in next Linux Next.
c213375e3283 ("serial: 8250_dw: Call dw8250_quirks() conditionally")
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/commit/?h=next-20250210
> [3] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=next-20250210&id=bfd3d4a40f3905ec70b17dbfa9b78764e59e4b4f
>
>
--
With Best Regards,
Andy Shevchenko
