Hi, On Wed, Feb 2, 2022 at 2:25 AM Thomas Zimmermann <tzimmermann@xxxxxxx> wrote: > > Hi > > Am 02.02.22 um 10:28 schrieb Ard Biesheuvel: > > 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. > > Of course, we'll provide a patch for the Kconfig files. There was discussion about this last November but I guess nothing came of it? https://lore.kernel.org/r/20211117062704.14671-1-rdunlap@xxxxxxxxxxxxx/ In there Arnd provided a proposed patch. If everyone likes that and it fixes things then we can apply it... -Doug
