tree: https://github.com/Xilinx/linux-xlnx master head: 6a698dbaaf0e6caa053476c2f661b36885a0ce30 commit: 22272cc48b5399af99792722fa7004735b769e0a [269/326] firmware: xilinx: Add support to get the image meta-header info config: hexagon-randconfig-r041-20220112 (https://download.01.org/0day-ci/archive/20220113/202201130455.ASiUDDqB-lk...) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 244dd2913a43a200f5a6544d424cdc37b771028b) 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/Xilinx/linux-xlnx/commit/22272cc48b5399af99792722fa700... git remote add xilinx-xlnx https://github.com/Xilinx/linux-xlnx git fetch --no-tags xilinx-xlnx master git checkout 22272cc48b5399af99792722fa7004735b769e0a # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon 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 >>): In file included from drivers/fpga/zynqmp-fpga.c:14: int zynqmp_pm_get_meta_header(const u64 src, const u64 dst, ^ include/linux/firmware/xlnx-zynqmp.h:1244:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int zynqmp_pm_get_meta_header(const u64 src, const u64 dst, ^ static include/linux/firmware/xlnx-zynqmp.h:1212:12: warning: unused function 'zynqmp_pm_sec_read_reg' [-Wunused-function] static int zynqmp_pm_sec_read_reg(u32 node_id, u32 offset, u32 *ret_value) ^ include/linux/firmware/xlnx-zynqmp.h:1217:12: warning: unused function 'zynqmp_pm_sec_mask_write_reg' [-Wunused-function] static int zynqmp_pm_sec_mask_write_reg(const u32 node_id, const u32 offset, ^ 3 warnings generated. vim +/zynqmp_pm_get_meta_header +1244 include/linux/firmware/xlnx-zynqmp.h 1243 1245 const u32 size, u32 *count) 1246 { 1247 return -ENODEV; 1248 } 1249 #endif 1250 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org