On Wed, 2 Feb 2022 at 10:08, Thomas Zimmermann <tzimmermann@xxxxxxx> wrote: > > Hi > > Am 02.02.22 um 10:02 schrieb Naresh Kamboju: > > Following builds failed on Linux next 20220202 arm architecture. > > - arm-gcc-10-omap2plus_defconfig > > - arm-clang-nightly-shmobile_defconfig > > - arm-gcc-8-lpc32xx_defconfig > > - arm-clang-13-shmobile_defconfig > > - arm-gcc-10-shmobile_defconfig > > - arm-clang-11-shmobile_defconfig > > - arm-clang-11-omap2plus_defconfig > > - arm-clang-13-omap2plus_defconfig > > - arm-clang-11-lpc32xx_defconfig > > - arm-gcc-8-omap2plus_defconfig > > - arm-gcc-9-vexpress_defconfig > > - arm-clang-nightly-lpc32xx_defconfig > > - arm-gcc-9-shmobile_defconfig > > - arm-clang-13-lpc32xx_defconfig > > - arm-gcc-10-sama5_defconfig > > - arm-clang-11-vexpress_defconfig > > - arm-clang-11-sama5_defconfig > > - arm-gcc-9-omap2plus_defconfig > > - arm-clang-nightly-sama5_defconfig > > - arm-clang-13-vexpress_defconfig > > - arm-clang-nightly-vexpress_defconfig > > - arm-gcc-9-lpc32xx_defconfig > > - arm-clang-12-vexpress_defconfig > > - arm-gcc-10-vexpress_defconfig > > - arm-clang-12-shmobile_defconfig > > - arm-gcc-11-omap2plus_defconfig > > - arm-gcc-9-sama5_defconfig > > - arm-gcc-8-shmobile_defconfig > > - arm-gcc-10-lpc32xx_defconfig > > - arm-clang-12-omap2plus_defconfig > > - arm-gcc-8-vexpress_defconfig > > - arm-clang-12-sama5_defconfig > > - arm-clang-nightly-omap2plus_defconfig > > - arm-gcc-11-lpc32xx_defconfig > > - arm-gcc-11-sama5_defconfig > > - arm-gcc-11-shmobile_defconfig > > - arm-gcc-11-vexpress_defconfig > > - arm-gcc-8-sama5_defconfig > > - arm-clang-13-sama5_defconfig > > - arm-clang-12-lpc32xx_defconfig > > > > > > make --silent --keep-going --jobs=8 ARCH=arm > > CROSS_COMPILE=arm-linux-gnueabihf- 'CC=sccache > > arm-linux-gnueabihf-gcc' 'HOSTCC=sccache gcc' vexpress_defconfig > > make --silent --keep-going --jobs=8 ARCH=arm > > CROSS_COMPILE=arm-linux-gnueabihf- 'CC=sccache > > arm-linux-gnueabihf-gcc' 'HOSTCC=sccache gcc' > > arm-linux-gnueabihf-ld: drivers/gpu/drm/panel/panel-edp.o: in function > > `panel_edp_probe': > > panel-edp.c:(.text+0xb74): undefined reference to `drm_panel_dp_aux_backlight' > > make[1]: *** [/builds/linux/Makefile:1222: vmlinux] Error 1 > > > > > > Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx> > > > > meta data: > > ----------- > > git describe: next-20220202 > > git_repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git > > target_arch: arm > > kconfig: vexpress_defconfig > > toolchain: gcc-11 > > > > Build log: > > ------------- > > https://builds.tuxbuild.com/24XRim72vFXix6l6MdAJNENy6je/ > > > > Steps to reproduce: > > -------------------- > > # To install tuxmake on your system globally: > > # sudo pip3 install -U tuxmake > > # > > # See https://docs.tuxmake.org/ for complete documentation. > > # Original tuxmake command with fragments listed below. > > > > tuxmake --runtime podman --target-arch arm --toolchain gcc-11 > > --kconfig vexpress_defconfig > > > > tuxmake --runtime podman --target-arch arm --toolchain gcc-11 > > --kconfig https://builds.tuxbuild.com/24XRim72vFXix6l6MdAJNENy6je/config > > You'll now need > > CONFIG_DRM_DP_HELPER=y > > in your config. > That should never be the solution for linker errors such as this one. If CONFIG_DRM_PANEL_EDP relies on something provided by CONFIG_DRM_DP_HELPER, it should select it or depend on it in Kconfig.