Hi Li, kernel test robot noticed the following build warnings: [auto build test WARNING on jic23-iio/togreg] [also build test WARNING on linus/master v6.7-rc1 next-20231116] [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/Li-peiyu/iio-humidity-Add-driver-for-ti-HDC302x-humidity-sensors/20231116-210050 base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg patch link: https://lore.kernel.org/r/20231116125805.13466-1-579lpy%40gmail.com patch subject: [PATCH [1/2]] iio: humidity: Add driver for ti HDC302x humidity sensors config: x86_64-randconfig-r111-20231117 (https://download.01.org/0day-ci/archive/20231117/202311171052.IjyxJMuw-lkp@xxxxxxxxx/config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231117/202311171052.IjyxJMuw-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/202311171052.IjyxJMuw-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> drivers/iio/humidity/hdc3020.c:23:10: sparse: sparse: symbol 'HDC3020_S_AUTO_10HZ_MOD0' was not declared. Should it be static? >> drivers/iio/humidity/hdc3020.c:25:10: sparse: sparse: symbol 'HDC3020_EXIT_AUTO' was not declared. Should it be static? >> drivers/iio/humidity/hdc3020.c:27:10: sparse: sparse: symbol 'HDC3020_R_T_RH_AUTO' was not declared. Should it be static? >> drivers/iio/humidity/hdc3020.c:28:10: sparse: sparse: symbol 'HDC3020_R_T_LOW_AUTO' was not declared. Should it be static? >> drivers/iio/humidity/hdc3020.c:29:10: sparse: sparse: symbol 'HDC3020_R_T_HIGH_AUTO' was not declared. Should it be static? >> drivers/iio/humidity/hdc3020.c:30:10: sparse: sparse: symbol 'HDC3020_R_RH_LOW_AUTO' was not declared. Should it be static? >> drivers/iio/humidity/hdc3020.c:31:10: sparse: sparse: symbol 'HDC3020_R_RH_HIGH_AUTO' was not declared. Should it be static? >> drivers/iio/humidity/hdc3020.c:33:10: sparse: sparse: symbol 'HDC3020_ENABLE_HEATER' was not declared. Should it be static? >> drivers/iio/humidity/hdc3020.c:34:10: sparse: sparse: symbol 'HDC3020_DISABLE_HEATER' was not declared. Should it be static? >> drivers/iio/humidity/hdc3020.c:36:10: sparse: sparse: symbol 'HDC3020_HEATER_FULL' was not declared. Should it be static? >> drivers/iio/humidity/hdc3020.c:37:10: sparse: sparse: symbol 'HDC3020_HEATER_HALF' was not declared. Should it be static? >> drivers/iio/humidity/hdc3020.c:38:10: sparse: sparse: symbol 'HDC3020_HEATER_QUARTER' was not declared. Should it be static? vim +/HDC3020_S_AUTO_10HZ_MOD0 +23 drivers/iio/humidity/hdc3020.c 22 > 23 const u8 HDC3020_S_AUTO_10HZ_MOD0[2] = { 0x27, 0x37 }; 24 > 25 const u8 HDC3020_EXIT_AUTO[2] = { 0x30, 0x93 }; 26 > 27 const u8 HDC3020_R_T_RH_AUTO[2] = { 0xE0, 0x00 }; > 28 const u8 HDC3020_R_T_LOW_AUTO[2] = { 0xE0, 0x02 }; > 29 const u8 HDC3020_R_T_HIGH_AUTO[2] = { 0xE0, 0x03 }; > 30 const u8 HDC3020_R_RH_LOW_AUTO[2] = { 0xE0, 0x04 }; > 31 const u8 HDC3020_R_RH_HIGH_AUTO[2] = { 0xE0, 0x05 }; 32 > 33 const u8 HDC3020_ENABLE_HEATER[2] = { 0x30, 0x6D }; > 34 const u8 HDC3020_DISABLE_HEATER[2] = { 0x30, 0x66 }; 35 > 36 const u8 HDC3020_HEATER_FULL[5] = { 0x30, 0x6E, 0x3F, 0xFF, 0x06 }; > 37 const u8 HDC3020_HEATER_HALF[5] = { 0x30, 0x6E, 0x03, 0xFF, 0x00 }; > 38 const u8 HDC3020_HEATER_QUARTER[5] = { 0x30, 0x6E, 0x00, 0x9F, 0x96 }; 39 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
