Hi Alexander, kernel test robot noticed the following build warnings: [auto build test WARNING on lee-mfd/for-mfd-next] [also build test WARNING on abelloni/rtc-next linus/master lee-mfd/for-mfd-fixes v6.14-rc5 next-20250305] [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/Alexander-Sverdlin/dt-bindings-mfd-sophgo-add-RTC-support-for-Sophgo-CV1800-series-SoC/20250303-035433 base: https://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git for-mfd-next patch link: https://lore.kernel.org/r/20250302195205.3183174-3-alexander.sverdlin%40gmail.com patch subject: [PATCH v12 2/3] mfd: sophgo: cv1800: rtcsys: New driver (handling RTC only) config: hexagon-allyesconfig (https://download.01.org/0day-ci/archive/20250306/202503060435.1c1akI1Q-lkp@xxxxxxxxx/config) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250306/202503060435.1c1akI1Q-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/202503060435.1c1akI1Q-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/mfd/cv1800-rtcsys.c:30:30: warning: unused variable 'cv1800_rtcsys_rtc_subdev' [-Wunused-const-variable] 30 | static const struct mfd_cell cv1800_rtcsys_rtc_subdev = | ^~~~~~~~~~~~~~~~~~~~~~~~ 1 warning generated. vim +/cv1800_rtcsys_rtc_subdev +30 drivers/mfd/cv1800-rtcsys.c 29 > 30 static const struct mfd_cell cv1800_rtcsys_rtc_subdev = 31 MFD_CELL_NAME("cv1800-rtc"); 32 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
