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
