Hi Antoniu, kernel test robot noticed the following build warnings: [auto build test WARNING on abelloni/rtc-next] [also build test WARNING on linus/master v6.6 next-20231110] [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/Antoniu-Miclaus/rtc-max31335-add-driver-support/20231109-231755 base: https://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git rtc-next patch link: https://lore.kernel.org/r/20231109101449.8347-2-antoniu.miclaus%40analog.com patch subject: [PATCH v7 2/2] rtc: max31335: add driver support config: x86_64-randconfig-123-20231111 (https://download.01.org/0day-ci/archive/20231111/202311110508.MdqXcQsW-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231111/202311110508.MdqXcQsW-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/202311110508.MdqXcQsW-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> drivers/rtc/rtc-max31335.c:504:22: sparse: sparse: symbol 'max31335_clk_init' was not declared. Should it be static? >> drivers/rtc/rtc-max31335.c:527:21: sparse: sparse: symbol 'max31335_nvmem_cfg' was not declared. Should it be static? vim +/max31335_clk_init +504 drivers/rtc/rtc-max31335.c 503 > 504 struct clk_init_data max31335_clk_init = { 505 .name = "max31335-clkout", 506 .ops = &max31335_clkout_ops, 507 }; 508 509 static int max31335_nvmem_reg_read(void *priv, unsigned int offset, 510 void *val, size_t bytes) 511 { 512 struct max31335_data *max31335 = priv; 513 unsigned int reg = MAX31335_TS0_SEC_1_128 + offset; 514 515 return regmap_bulk_read(max31335->regmap, reg, val, bytes); 516 } 517 518 static int max31335_nvmem_reg_write(void *priv, unsigned int offset, 519 void *val, size_t bytes) 520 { 521 struct max31335_data *max31335 = priv; 522 unsigned int reg = MAX31335_TS0_SEC_1_128 + offset; 523 524 return regmap_bulk_write(max31335->regmap, reg, val, bytes); 525 } 526 > 527 struct nvmem_config max31335_nvmem_cfg = { 528 .reg_read = max31335_nvmem_reg_read, 529 .reg_write = max31335_nvmem_reg_write, 530 .word_size = 8, 531 .size = MAX31335_RAM_SIZE, 532 }; 533 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki