Guido, Looks like this driver needs
+ depends on BACKLIGHT_CLASS_DEVICE to fix the build. @Gus- please read comments near bottom/end. On 10/14/25 6:59 AM, KernelCI bot wrote: > > > > > Hello, > > New build issue found on next/master: > > --- > undefined reference to `devm_backlight_device_register' in > vmlinux.unstripped (drivers/gpu/drm/panel/panel-visionox-rm69299.c) > [logspec:kbuild,kbuild.compiler.linker_error] > --- > > - dashboard: > https://d.kernelci.org/i/maestro:c1e01dcc5d8b9be9ec47f44bbdb346c2464c0f02 > - giturl: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git > - commit HEAD: 13863a59e410cab46d26751941980dc8f088b9b3 > - tags: next-20251014 > > > Log excerpt: > ===================================================== > LD .tmp_vmlinux1 > aarch64-linux-gnu-ld: Unexpected GOT/PLT entries detected! > aarch64-linux-gnu-ld: Unexpected run-time procedure linkages detected! > aarch64-linux-gnu-ld: drivers/gpu/drm/panel/panel-visionox-rm69299.o: in > function `visionox_rm69299_create_backlight': > /tmp/kci/linux/drivers/gpu/drm/panel/panel-visionox-rm69299.c:343: undefined > reference to `devm_backlight_device_register' > > ===================================================== > > > # Builds where the incident occurred: > > ## defconfig+arm64-chromebook+CONFIG_ARM64_16K_PAGES=y on (arm64): > - compiler: gcc-12 > - config: > https://files.kernelci.org/kbuild-gcc-12-arm64-16k_pages-68ee4f14a6dc7c71db9fda21/.config > - dashboard: https://d.kernelci.org/build/maestro:68ee4f14a6dc7c71db9fda21 > > ## defconfig+arm64-chromebook+CONFIG_ARM64_64K_PAGES=y on (arm64): > - compiler: gcc-12 > - config: > https://files.kernelci.org/kbuild-gcc-12-arm64-64k_pages-68ee4f17a6dc7c71db9fda24/.config > - dashboard: https://d.kernelci.org/build/maestro:68ee4f17a6dc7c71db9fda24 > > ## > defconfig+arm64-chromebook+CONFIG_CPU_BIG_ENDIAN=y+debug+kselftest+tinyconfig > on (arm64): > - compiler: gcc-12 > - config: > https://files.kernelci.org/kbuild-gcc-12-arm64-mainline-big_endian-68ee4f32a6dc7c71db9fda39/.config > - dashboard: https://d.kernelci.org/build/maestro:68ee4f32a6dc7c71db9fda39 > > ## defconfig+arm64-chromebook+CONFIG_RANDOMIZE_BASE=y on (arm64): > - compiler: gcc-12 > - config: > https://files.kernelci.org/kbuild-gcc-12-arm64-randomize-68ee4f1fa6dc7c71db9fda2a/.config > - dashboard: https://d.kernelci.org/build/maestro:68ee4f1fa6dc7c71db9fda2a > > ## defconfig+arm64-chromebook+kcidebug+lab-setup on (arm64): > - compiler: gcc-12 > - config: > https://files.kernelci.org/kbuild-gcc-12-arm64-chromebook-kcidebug-68ee4f2ba6dc7c71db9fda33/.config > - dashboard: https://d.kernelci.org/build/maestro:68ee4f2ba6dc7c71db9fda33 > > ## defconfig+arm64-chromebook+kselftest on (arm64): > - compiler: gcc-12 > - config: > https://files.kernelci.org/kbuild-gcc-12-arm64-kselftest-16k_pages-68ee4f23a6dc7c71db9fda2d/.config > - dashboard: https://d.kernelci.org/build/maestro:68ee4f23a6dc7c71db9fda2d > > ## defconfig+arm64-chromebook+preempt_rt on (arm64): > - compiler: gcc-12 > - config: > https://files.kernelci.org/kbuild-gcc-12-arm64-preempt_rt_chromebook-68ee4f3aa6dc7c71db9fda3f/.config > - dashboard: https://d.kernelci.org/build/maestro:68ee4f3aa6dc7c71db9fda3f > > > #kernelci issue maestro:c1e01dcc5d8b9be9ec47f44bbdb346c2464c0f02 > > Reported-by: kernelci.org bot <[email protected]> > > -- > This is an experimental report format. Please send feedback in! > Talk to us at [email protected] > > Made with love by the KernelCI team - https://kernelci.org > Gus, the CI reporter needs to learn how to do a few things because developers (other than me ?) don't scrounge mailing lists to look for problems. a. find the commit that caused the problem (or the email series) b. send the report (Cc:) to whoever wrote the patch and to the appropriate mailing list. I expect that b. is easier than a., so do it first. And I'm sure that I have missed a thing or two that could be added as well. Thanks. -- ~Randy
