Regression on linux-next (next-20240506)

[Borah, Chaitanya Kumar]

Hello Thomas,
 
Hope you are doing well.
 
This mail is regarding a regression we are seeing in our CI runs[1] on
linux-next repository.
 
Since the version next-20240506 [2], we are seeing the following regression
 
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Starting dynamic subtest: gt_contexts
(i915_selftest:1107) igt_kmod-WARNING: i915: Unknown symbol acpi_video_unregister (err -2)
(i915_selftest:1107) igt_kmod-WARNING: i915: Unknown symbol acpi_video_register_backlight (err -2)
(i915_selftest:1107) igt_kmod-WARNING: i915: Unknown symbol __acpi_video_get_backlight_type (err -2)
(i915_selftest:1107) igt_kmod-WARNING: i915: Unknown symbol acpi_video_register (err -2)
(i915_selftest:1107) igt_kmod-CRITICAL: Test assertion failure function igt_kselftest_execute, file ../../../usr/src/igt-gpu-tools/lib/igt_kmod.c:1594:
(i915_selftest:1107) igt_kmod-CRITICAL: Failed assertion: err == 0
(i915_selftest:1107) igt_kmod-CRITICAL: kselftest "i915 igt__23__live_gt_contexts=1 live_selftests=-1 disable_display=1 st_filter=" failed: No such file or directory [2]
Dynamic subtest gt_contexts failed.
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Details log can be found in [3].
 
After bisecting the tree, the following patch [4] seems to be the first "bad" commit
 
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2fd001cd36005846caa6456fff1008c6f5bae9d4 is the first bad commit
commit 2fd001cd36005846caa6456fff1008c6f5bae9d4
Author: Thomas Zimmermann tzimmermann at suse.de
Date:   Fri Mar 29 21:32:12 2024 +0100
 
    arch: Rename fbdev header and source files
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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-20240506
[3] https://intel-gfx-ci.01.org/tree/linux-next/next-20240506/bat-mtlp-9/igt@i915_selftest@live@gt_contexts.html
[4] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=next-20240506&id=2fd001cd36005846caa6456fff1008c6f5bae9d4