Hi Douglas, kernel test robot noticed the following build errors: [auto build test ERROR on robh/for-next] [also build test ERROR on hid/for-next dtor-input/next dtor-input/for-linus drm-misc/drm-misc-next linus/master v6.4-rc5 next-20230607] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Douglas-Anderson/dt-bindings-HID-i2c-hid-Add-panel-property-to-i2c-hid-backed-touchscreens/20230608-055515 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next patch link: https://lore.kernel.org/r/20230607144931.v2.8.Ib1a98309c455cd7e26b931c69993d4fba33bbe15%40changeid patch subject: [PATCH v2 08/10] HID: i2c-hid: Support being a panel follower config: i386-randconfig-i003-20230607 (https://download.01.org/0day-ci/archive/20230608/202306081419.Dzz0T4iW-lkp@xxxxxxxxx/config) compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project.git 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a) reproduce (this is a W=1 build): mkdir -p ~/bin wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git remote add robh https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git git fetch robh for-next git checkout robh/for-next b4 shazam https://lore.kernel.org/r/20230607144931.v2.8.Ib1a98309c455cd7e26b931c69993d4fba33bbe15@changeid # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=i386 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202306081419.Dzz0T4iW-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> ld.lld: error: undefined symbol: drm_panel_add_follower >>> referenced by i2c-hid-core.c:1159 (drivers/hid/i2c-hid/i2c-hid-core.c:1159) >>> drivers/hid/i2c-hid/i2c-hid-core.o:(i2c_hid_core_probe) in archive vmlinux.a -- >> ld.lld: error: undefined symbol: drm_panel_remove_follower >>> referenced by i2c-hid-core.c:1218 (drivers/hid/i2c-hid/i2c-hid-core.c:1218) >>> drivers/hid/i2c-hid/i2c-hid-core.o:(i2c_hid_core_remove) in archive vmlinux.a -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
