tree: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git ux500-href-charging-v5.16-rc1 head: 32391681d89fce910d0190dc32a6febe33a74041 commit: 32391681d89fce910d0190dc32a6febe33a74041 [36/36] power: supply: Static data for Samsung batteries config: m68k-allmodconfig (https://download.01.org/0day-ci/archive/20211214/202112141005.Sh9OZ9XN-lk...) compiler: m68k-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/linusw/linux-nomadik.git/... git remote add linusw-nomadik https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git git fetch --no-tags linusw-nomadik ux500-href-charging-v5.16-rc1 git checkout 32391681d89fce910d0190dc32a6febe33a74041 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=m68k SHELL=/bin/bash drivers/power/supply/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): 393 | int samsung_sdi_battery_get_info(struct device *dev, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from drivers/power/supply/samsung-sdi-battery.c:10: drivers/power/supply/samsung-sdi-battery.h:7:19: note: previous definition of 'samsung_sdi_battery_get_info' with type 'int(struct device *, struct device_node *, struct power_supply_battery_info **)' 7 | static inline int samsung_sdi_battery_get_info(struct device *dev, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/samsung_sdi_battery_get_info +393 drivers/power/supply/samsung-sdi-battery.c 392 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org