On Tue, Apr 08, 2025 at 05:26:27PM +0300, Dmitry Baryshkov wrote:
On Tue, Apr 08, 2025 at 04:51:25PM +0300, Jani Nikula wrote:
On Tue, 08 Apr 2025, "Borah, Chaitanya Kumar" <chaitanya.kumar.bo...@intel.com>
wrote:
>> > We will need more changes than fixing the variable names.
>> >
>> > I get this error
>> >
>> > ERROR: modpost: "__devm_drm_panel_alloc"
>> [drivers/gpu/drm/panel/panel-auo-a030jtn01.ko] undefined!
>> > make[2]: *** [scripts/Makefile.modpost:147: Module.symvers] Error 1
>> > make[1]: ***
>> > [/home/chaitanya/exodus/repos/drm-tip-sandbox/Makefile:1956:
>> modpost]
>> > Error 2
>> > make: *** [Makefile:248: __sub-make] Error 2
>> >
>> > after making the following change.
>>
>> I couldn't reproduce this one on current drm-misc-next with arm64 and
>> x86 allmodconfig. Could you share your configuration?
>>
>
> Here is the config that our CI uses
>
> https://gitlab.freedesktop.org/drm/xe/ci/-/raw/main/kernel/kconfig
There's
CONFIG_DRM_PANEL=y
# CONFIG_OF is not set
but __devm_drm_panel_alloc is inside #ifdef CONFIG_OF. I don't know that
it should be.
There are some stubs in drm_panel.h for !CONFIG_OF but not this one.
Finally, DRM_PANEL_AUO_A030JTN01 does not depend on OF.
That's the issue, but I don't know what the correct fix would be.
I'l send a patch.
I wish I had seen this thread before the patch series mentioned in IRC
to fix it. The additional patch needed is probably something like in
https://lore.kernel.org/dri-devel/nyrjnvctqnk6f3x5q7rlmy5nb7iopoti56pgh43zqknici5ms4@cibpldh7epra/
?
Lucas De Marchi
