Hi Charles, kernel test robot noticed the following build warnings: [auto build test WARNING on broonie-spi/for-next] [also build test WARNING on brgl/gpio/for-next linus/master v6.9-rc1 next-20240327] [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/Charles-Keepax/gpio-swnode-Add-ability-to-specify-native-chip-selects-for-SPI/20240326-221422 base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next patch link: https://lore.kernel.org/r/20240326141108.1079993-4-ckeepax%40opensource.cirrus.com patch subject: [PATCH 3/3] spi: cs42l43: Add bridged cs35l56 amplifiers config: sh-randconfig-r121-20240327 (https://download.01.org/0day-ci/archive/20240328/202403280258.rjWikSAr-lkp@xxxxxxxxx/config) compiler: sh4-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20240328/202403280258.rjWikSAr-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/202403280258.rjWikSAr-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> drivers/spi/spi-cs42l43.c:48:28: sparse: sparse: symbol 'ampr' was not declared. Should it be static? >> drivers/spi/spi-cs42l43.c:52:23: sparse: sparse: symbol 'ampl_info' was not declared. Should it be static? >> drivers/spi/spi-cs42l43.c:61:23: sparse: sparse: symbol 'ampr_info' was not declared. Should it be static? drivers/spi/spi-cs42l43.c: note: in included file (through include/linux/mmzone.h, include/linux/gfp.h, include/linux/slab.h, ...): include/linux/page-flags.h:242:46: sparse: sparse: self-comparison always evaluates to false include/linux/page-flags.h:242:46: sparse: sparse: self-comparison always evaluates to false vim +/ampr +48 drivers/spi/spi-cs42l43.c 47 > 48 const struct software_node ampr = { 49 .name = "cs35l56-right", 50 }; 51 > 52 struct spi_board_info ampl_info = { 53 .modalias = "cs35l56", 54 .max_speed_hz = 2000000, 55 .chip_select = 0, 56 .mode = SPI_MODE_0, 57 .swnode = &l, 58 .use_fwnode_name = true, 59 }; 60 > 61 struct spi_board_info ampr_info = { 62 .modalias = "cs35l56", 63 .max_speed_hz = 2000000, 64 .chip_select = 1, 65 .mode = SPI_MODE_0, 66 .swnode = &r, 67 .use_fwnode_name = true, 68 }; 69 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki