Hi Bjorn, I love your patch! Yet something to improve: [auto build test ERROR on robh/for-next] [also build test ERROR on pavel-linux-leds/for-next v5.12 next-20210429] [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] url: https://github.com/0day-ci/linux/commits/Bjorn-Andersson/Qualcomm-Light-Pulse-Generator/20210430-051736 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: arm-defconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/45509bacfcf87714f6a99dd7d01cc31c582e5fa2 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Bjorn-Andersson/Qualcomm-Light-Pulse-Generator/20210430-051736 git checkout 45509bacfcf87714f6a99dd7d01cc31c582e5fa2 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): >> drivers/leds/Kconfig:935: can't open file "drivers/leds/rgb/Kconfig" -- >> drivers/leds/Kconfig:935: can't open file "drivers/leds/rgb/Kconfig" make[3]: *** [scripts/kconfig/Makefile:63: syncconfig] Error 1 make[2]: *** [Makefile:600: syncconfig] Error 2 make[1]: *** [Makefile:709: include/config/auto.conf.cmd] Error 2 make[1]: Failed to remake makefile 'include/config/auto.conf.cmd'. make[1]: Failed to remake makefile 'include/config/auto.conf'. make[1]: Target 'modules_prepare' not remade because of errors. make: *** [Makefile:215: __sub-make] Error 2 make: Target 'modules_prepare' not remade because of errors. -- >> drivers/leds/Kconfig:935: can't open file "drivers/leds/rgb/Kconfig" make[2]: *** [scripts/kconfig/Makefile:63: olddefconfig] Error 1 make[1]: *** [Makefile:600: olddefconfig] Error 2 make: *** [Makefile:215: __sub-make] Error 2 make: Target 'olddefconfig' not remade because of errors. -- >> drivers/leds/Kconfig:935: can't open file "drivers/leds/rgb/Kconfig" make[3]: *** [scripts/kconfig/Makefile:63: syncconfig] Error 1 make[2]: *** [Makefile:600: syncconfig] Error 2 make[1]: *** [Makefile:709: include/config/auto.conf.cmd] Error 2 make[1]: Failed to remake makefile 'include/config/auto.conf.cmd'. make[1]: Failed to remake makefile 'include/config/auto.conf'. make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:215: __sub-make] Error 2 make: Target 'prepare' not remade because of errors. vim +935 drivers/leds/Kconfig 933 934 comment "RGB LED drivers" > 935 source "drivers/leds/rgb/Kconfig" 936 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org