tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 011eb7443621f49ca1e8cdf9c74c215f25019118 commit: 10ec06d3987ba94ee30c7630733b48ca203bbed2 [5297/7305] power: supply: generic-adc-battery: use simple-battery API config: riscv-allmodconfig (https://download.01.org/0day-ci/archive/20230327/202303271028.9xc7IKeX-lkp@xxxxxxxxx/config) compiler: riscv64-linux-gcc (GCC) 12.1.0 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/next/linux-next.git/commit/?id=10ec06d3987ba94ee30c7630733b48ca203bbed2 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 10ec06d3987ba94ee30c7630733b48ca203bbed2 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=riscv olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash drivers/power/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303271028.9xc7IKeX-lkp@xxxxxxxxx/ Note: the linux-next/master HEAD 011eb7443621f49ca1e8cdf9c74c215f25019118 builds fine. It may have been fixed somewhere. All errors (new ones prefixed by >>): drivers/power/supply/generic-adc-battery.c: In function 'gab_get_property': >> drivers/power/supply/generic-adc-battery.c:134:17: error: 'ret' undeclared (first use in this function); did you mean 'net'? 134 | ret = read_channel(adc_bat, psp, &result); | ^~~ | net drivers/power/supply/generic-adc-battery.c:134:17: note: each undeclared identifier is reported only once for each function it appears in >> drivers/power/supply/generic-adc-battery.c:134:51: error: 'result' undeclared (first use in this function); did you mean 'mf_result'? 134 | ret = read_channel(adc_bat, psp, &result); | ^~~~~~ | mf_result >> drivers/power/supply/generic-adc-battery.c:136:25: error: label 'err' used but not defined 136 | goto err; | ^~~~ drivers/power/supply/generic-adc-battery.c:142:1: error: control reaches end of non-void function [-Werror=return-type] 142 | } | ^ cc1: some warnings being treated as errors vim +134 drivers/power/supply/generic-adc-battery.c e60fea794e6ecb drivers/power/generic-adc-battery.c anish kumar 2012-09-21 121 e60fea794e6ecb drivers/power/generic-adc-battery.c anish kumar 2012-09-21 122 static int gab_get_property(struct power_supply *psy, e60fea794e6ecb drivers/power/generic-adc-battery.c anish kumar 2012-09-21 123 enum power_supply_property psp, union power_supply_propval *val) e60fea794e6ecb drivers/power/generic-adc-battery.c anish kumar 2012-09-21 124 { 10ec06d3987ba9 drivers/power/supply/generic-adc-battery.c Sebastian Reichel 2023-03-17 125 struct gab *adc_bat = to_generic_bat(psy); e60fea794e6ecb drivers/power/generic-adc-battery.c anish kumar 2012-09-21 126 e60fea794e6ecb drivers/power/generic-adc-battery.c anish kumar 2012-09-21 127 switch (psp) { e60fea794e6ecb drivers/power/generic-adc-battery.c anish kumar 2012-09-21 128 case POWER_SUPPLY_PROP_STATUS: 10ec06d3987ba9 drivers/power/supply/generic-adc-battery.c Sebastian Reichel 2023-03-17 129 val->intval = adc_bat->status; 10ec06d3987ba9 drivers/power/supply/generic-adc-battery.c Sebastian Reichel 2023-03-17 130 return 0; e60fea794e6ecb drivers/power/generic-adc-battery.c anish kumar 2012-09-21 131 case POWER_SUPPLY_PROP_VOLTAGE_NOW: e60fea794e6ecb drivers/power/generic-adc-battery.c anish kumar 2012-09-21 132 case POWER_SUPPLY_PROP_CURRENT_NOW: e60fea794e6ecb drivers/power/generic-adc-battery.c anish kumar 2012-09-21 133 case POWER_SUPPLY_PROP_POWER_NOW: e60fea794e6ecb drivers/power/generic-adc-battery.c anish kumar 2012-09-21 @134 ret = read_channel(adc_bat, psp, &result); e60fea794e6ecb drivers/power/generic-adc-battery.c anish kumar 2012-09-21 135 if (ret < 0) e60fea794e6ecb drivers/power/generic-adc-battery.c anish kumar 2012-09-21 @136 goto err; e60fea794e6ecb drivers/power/generic-adc-battery.c anish kumar 2012-09-21 137 val->intval = result; e60fea794e6ecb drivers/power/generic-adc-battery.c anish kumar 2012-09-21 138 break; e60fea794e6ecb drivers/power/generic-adc-battery.c anish kumar 2012-09-21 139 default: e60fea794e6ecb drivers/power/generic-adc-battery.c anish kumar 2012-09-21 140 return -EINVAL; e60fea794e6ecb drivers/power/generic-adc-battery.c anish kumar 2012-09-21 141 } e60fea794e6ecb drivers/power/generic-adc-battery.c anish kumar 2012-09-21 142 } e60fea794e6ecb drivers/power/generic-adc-battery.c anish kumar 2012-09-21 143 :::::: The code at line 134 was first introduced by commit :::::: e60fea794e6ecb9ea4df2623c9498412afe31d4d power: battery: Generic battery driver using IIO :::::: TO: anish kumar <anish198519851985@xxxxxxxxx> :::::: CC: Jonathan Cameron <jic23@xxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests