Hi Yinbo, I love your patch! Yet something to improve: [auto build test ERROR on clk/clk-next] [also build test ERROR on robh/for-next linus/master v6.3-rc1 next-20230308] [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/clk-clk-loongson2-add-clock-controller-driver-support/20230307-195252 base: https://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git clk-next patch link: https://lore.kernel.org/r/20230307115022.12846-2-zhuyinbo%40loongson.cn patch subject: [PATCH v13 2/2] clk: clk-loongson2: add clock controller driver support config: mips-allyesconfig (https://download.01.org/0day-ci/archive/20230308/202303082037.QPfBP64A-lkp@xxxxxxxxx/config) compiler: mips-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/391d6fc63ac65f5456e4755c9dd85232a6296285 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Yinbo-Zhu/clk-clk-loongson2-add-clock-controller-driver-support/20230307-195252 git checkout 391d6fc63ac65f5456e4755c9dd85232a6296285 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=mips olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash drivers/ 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/202303082037.QPfBP64A-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): drivers/clk/clk-loongson2.c: In function 'loongson2_calc_pll_rate': >> drivers/clk/clk-loongson2.c:79:15: error: implicit declaration of function 'readq'; did you mean 'readl'? [-Werror=implicit-function-declaration] 79 | val = readq(loongson2_pll_base + offset); | ^~~~~ | readl cc1: some warnings being treated as errors vim +79 drivers/clk/clk-loongson2.c 73 74 static unsigned long loongson2_calc_pll_rate(int offset, unsigned long rate) 75 { 76 u64 val; 77 u32 mult = 1, div = 1; 78 > 79 val = readq(loongson2_pll_base + offset); 80 81 mult = (val >> LOONGSON2_PLL_MULT_SHIFT) & 82 clk_div_mask(LOONGSON2_PLL_MULT_WIDTH); 83 div = (val >> LOONGSON2_PLL_DIV_SHIFT) & 84 clk_div_mask(LOONGSON2_PLL_DIV_WIDTH); 85 86 return div_u64((u64)rate * mult, div); 87 } 88 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests