Hi David, kernel test robot noticed the following build warnings: [auto build test WARNING on groeck-staging/hwmon-next] [also build test WARNING on linus/master v6.6 next-20231101] [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/David-Ober/hwmon-Add-MEC172x-Micro-Chip-driver-for-Lenovo-motherboards/20231031-235345 base: https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git hwmon-next patch link: https://lore.kernel.org/r/20231031154930.4908-1-dober6023%40gmail.com patch subject: [PATCH v2] hwmon:Add MEC172x Micro Chip driver for Lenovo motherboards config: sh-allyesconfig (https://download.01.org/0day-ci/archive/20231101/202311011858.M1Ui9wp1-lkp@xxxxxxxxx/config) compiler: sh4-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231101/202311011858.M1Ui9wp1-lkp@xxxxxxxxx/reproduce) 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/202311011858.M1Ui9wp1-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/hwmon/lenovo-ec-sensors.c: In function 'get_ec_reg': drivers/hwmon/lenovo-ec-sensors.c:36:25: error: implicit declaration of function 'inb_p'; did you mean 'int_pow'? [-Werror=implicit-function-declaration] 36 | #define io_read8(a) inb_p(a) | ^~~~~ drivers/hwmon/lenovo-ec-sensors.c:45:13: note: in expansion of macro 'io_read8' 45 | if (io_read8(MCHP_EMI0_APPLICATION_ID) != 0) /* EMI access locked */ | ^~~~~~~~ drivers/hwmon/lenovo-ec-sensors.c:35:25: error: implicit declaration of function 'outb_p' [-Werror=implicit-function-declaration] 35 | #define io_write8(a, b) outb_p(b, a) | ^~~~~~ drivers/hwmon/lenovo-ec-sensors.c:48:9: note: in expansion of macro 'io_write8' 48 | io_write8(MCHP_EMI0_APPLICATION_ID, 0x01); | ^~~~~~~~~ drivers/hwmon/lenovo-ec-sensors.c: In function 'get_platform': >> drivers/hwmon/lenovo-ec-sensors.c:274:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 274 | for (idx = 0 ; idx < 6 ; idx++) | ^~~ drivers/hwmon/lenovo-ec-sensors.c:276:17: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 276 | system_type[idx] = get_ec_reg(0xC, (0x10 + idx)); | ^~~~~~~~~~~ In function 'get_platform', inlined from 'lenovo_ec_probe' at drivers/hwmon/lenovo-ec-sensors.c:420:26: >> drivers/hwmon/lenovo-ec-sensors.c:276:34: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=] 276 | system_type[idx] = get_ec_reg(0xC, (0x10 + idx)); | ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/hwmon/lenovo-ec-sensors.c: In function 'lenovo_ec_probe': drivers/hwmon/lenovo-ec-sensors.c:270:14: note: at offset 6 into destination object 'system_type' of size 6 270 | char system_type[6]; | ^~~~~~~~~~~ cc1: some warnings being treated as errors vim +/for +274 drivers/hwmon/lenovo-ec-sensors.c 267 268 static int get_platform(struct ec_sensors_data *data) 269 { 270 char system_type[6]; 271 int ret = -1; 272 int idx; 273 > 274 for (idx = 0 ; idx < 6 ; idx++) 275 mutex_lock(&data->mec_mutex); > 276 system_type[idx] = get_ec_reg(0xC, (0x10 + idx)); 277 mutex_unlock(&data->mec_mutex); 278 279 for (idx = 0 ; idx < 4 ; idx++) { 280 if (strcmp(systems[idx], system_type) == 0) { 281 ret = idx; 282 break; 283 } 284 } 285 return ret; 286 } 287 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
