tree: https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git hack/m1-pcie-v2 head: 2c9981b6a289354c22989e70cef0e51b9e632091 commit: 9404863043f90db4d8e377ac211584660c6acbec [6/21] clk: add support for gate clocks on Apple SoCs config: arm64-randconfig-r016-20210822 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 79b55e5038324e61a3abf4e6a9a949c473edd858) 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 # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git/com... git remote add arm-platforms https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git git fetch --no-tags arm-platforms hack/m1-pcie-v2 git checkout 9404863043f90db4d8e377ac211584660c6acbec # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 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 >>): struct clk_hw *apple_clk_hw_onecell_get(struct of_phandle_args *clkspec, ^ drivers/clk/clk-apple-gate.c:113:1: note: declare 'static' if the function is not intended to be used outside of this translation unit struct clk_hw *apple_clk_hw_onecell_get(struct of_phandle_args *clkspec, ^ static 1 warning generated. vim +/apple_clk_hw_onecell_get +113 drivers/clk/clk-apple-gate.c 112 114 void *data) 115 { 116 struct clk_hw *hw = NULL; 117 struct clk_hw_onecell_data *hw_data = data; 118 unsigned int idx = clkspec->args[0]; 119 120 if (idx % 8) { 121 pr_err("%s: unaligned index: %u\n", __func__, idx); 122 return ERR_PTR(-EINVAL); 123 } 124 125 idx /= 8; 126 if (idx >= hw_data->num) { 127 pr_err("%s: index out of bounds: %u\n", __func__, idx); 128 return ERR_PTR(-EINVAL); 129 } 130 131 hw = hw_data->hws[idx]; 132 if (!hw) 133 return ERR_PTR(-EINVAL); 134 return hw; 135 } 136 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org