Hi Yinbo, I love your patch! Yet something to improve: [auto build test ERROR on broonie-spi/for-next] [also build test ERROR on robh/for-next krzk-dt/for-next linus/master v6.3-rc3 next-20230324] [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/Yinbo-Zhu/dt-bindings-spi-add-loongson-spi/20230324-143432 base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next patch link: https://lore.kernel.org/r/20230324063317.14664-3-zhuyinbo%40loongson.cn patch subject: [PATCH v3 2/2] spi: loongson: add bus driver for the loongson spi controller config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20230325/202303250536.OV1LR58y-lkp@xxxxxxxxx/config) compiler: powerpc-linux-gcc (GCC) 12.1.0 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/intel-lab-lkp/linux/commit/3742622c455d25c4a110d2caf2f5b2ceefe88f91 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Yinbo-Zhu/dt-bindings-spi-add-loongson-spi/20230324-143432 git checkout 3742622c455d25c4a110d2caf2f5b2ceefe88f91 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303250536.OV1LR58y-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>, old ones prefixed by <<): >> ERROR: modpost: "loongson_spi_dev_pm_ops" [drivers/spi/spi-loongson-pci.ko] undefined! >> ERROR: modpost: "loongson_spi_dev_pm_ops" [drivers/spi/spi-loongson-plat.ko] undefined! -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
