Hi Emil, I love your patch! Perhaps something to improve: [auto build test WARNING on robh/for-next] [also build test WARNING on clk/clk-next pza/reset/next linus/master v5.15-rc5 next-20211013] [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] url: https://github.com/0day-ci/linux/commits/Emil-Renner-Berthing/Basic-StarF... base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: microblaze-randconfig-r033-20211013 (attached as .config) compiler: microblaze-linux-gcc (GCC) 11.2.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/39e70136443b16615b0b83a448d6c5106... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Emil-Renner-Berthing/Basic-StarFive-JH7100-RISC-V-SoC-support/20211012-220348 git checkout 39e70136443b16615b0b83a448d6c5106d68cef7 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=microblaze SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>, old ones prefixed by <<): The variable starfive_pinctrl_driver references the function __init starfive_probe() If the reference is valid then annotate the variable with or __refdata (see linux/init.h) or name the variable: --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org