tree: https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git 20210903-firmware-builtin head: f04680656e851c6cde6f2ee077053edf49c2a65e commit: f04680656e851c6cde6f2ee077053edf49c2a65e [8/8] test_firmware: add support for testing built-in firmware config: sh-allmodconfig (attached as .config) compiler: sh4-linux-gcc (GCC) 11.2.0 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://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git/commit/?id=f04680656e851c6cde6f2ee077053edf49c2a65e git remote add mcgrof-next https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git git fetch --no-tags mcgrof-next 20210903-firmware-builtin git checkout f04680656e851c6cde6f2ee077053edf49c2a65e # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=sh If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> drivers/base/firmware_loader/builtin/main.c:42:6: warning: no previous prototype for 'firmware_is_builtin' [-Wmissing-prototypes] 42 | bool firmware_is_builtin(const struct firmware *fw) | ^~~~~~~~~~~~~~~~~~~ Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for FW_LOADER_BUILTIN Depends on FW_LOADER Selected by - TEST_BUILTIN_FIRMWARE && RUNTIME_TESTING_MENU && TEST_FIRMWARE vim +/firmware_is_builtin +42 drivers/base/firmware_loader/builtin/main.c 7ee0e1090d8707 Luis Chamberlain 2021-09-03 41 7ee0e1090d8707 Luis Chamberlain 2021-09-03 @42 bool firmware_is_builtin(const struct firmware *fw) :::::: The code at line 42 was first introduced by commit :::::: 7ee0e1090d8707d9e53490697ccd0200fcba07a9 firmware_loader: formalize built-in firmware API :::::: TO: Luis Chamberlain :::::: CC: Luis Chamberlain --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org