Hi Chris, kernel test robot noticed the following build warnings: [auto build test WARNING on robh/for-next] [also build test WARNING on andi-shyti/i2c/i2c-host sre-power-supply/for-next linus/master v6.11 next-20240927] [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/Chris-Packham/dt-bindings-reset-syscon-reboot-Add-reg-property/20240926-060355 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next patch link: https://lore.kernel.org/r/20240925215847.3594898-7-chris.packham%40alliedtelesis.co.nz patch subject: [PATCH v5 6/6] i2c: Add driver for the RTL9300 I2C controller config: csky-randconfig-r111-20240929 (https://download.01.org/0day-ci/archive/20240929/202409291025.P4M4O1F2-lkp@xxxxxxxxx/config) compiler: csky-linux-gcc (GCC) 14.1.0 reproduce: (https://download.01.org/0day-ci/archive/20240929/202409291025.P4M4O1F2-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/202409291025.P4M4O1F2-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> drivers/i2c/busses/i2c-rtl9300.c:321:27: sparse: sparse: symbol 'rtl9300_i2c_quirks' was not declared. Should it be static? vim +/rtl9300_i2c_quirks +321 drivers/i2c/busses/i2c-rtl9300.c 320 > 321 struct i2c_adapter_quirks rtl9300_i2c_quirks = { 322 .flags = I2C_AQ_NO_CLK_STRETCH, 323 .max_read_len = 16, 324 .max_write_len = 16, 325 }; 326 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki