Hi Youling, kernel test robot noticed the following build warnings:
[auto build test WARNING on linus/master] [also build test WARNING on v6.17-rc1 next-20250815] [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/Youling-Tang/LoongArch-Add-struct-loongarch_image_header-for-kernel-image/20250811-174725 base: linus/master patch link: https://lore.kernel.org/r/20250811092659.14903-3-youling.tang%40linux.dev patch subject: [PATCH 2/6] LoongArch: Add kexec_file support config: loongarch-randconfig-r121-20250816 (https://download.01.org/0day-ci/archive/20250816/202508161329.m5axl1xa-...@intel.com/config) compiler: loongarch64-linux-gcc (GCC) 15.1.0 reproduce: (https://download.01.org/0day-ci/archive/20250816/202508161329.m5axl1xa-...@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <l...@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202508161329.m5axl1xa-...@intel.com/ All warnings (new ones prefixed by >>): In file included from arch/loongarch/kernel/kexec_image.c:19: >> arch/loongarch/include/asm/image.h:40:22: warning: 'loongarch_pe_machtype' >> defined but not used [-Wunused-const-variable=] 40 | static const uint8_t loongarch_pe_machtype[6] = {'P', 'E', 0x0, 0x0, 0x64, 0x62}; | ^~~~~~~~~~~~~~~~~~~~~ sparse warnings: (new ones prefixed by >>) >> arch/loongarch/kernel/kexec_image.c:63:22: sparse: sparse: cast to >> restricted __le64 arch/loongarch/kernel/kexec_image.c:64:23: sparse: sparse: cast to restricted __le64 vim +/loongarch_pe_machtype +40 arch/loongarch/include/asm/image.h 38 39 static const uint8_t loongarch_image_pe_sig[2] = {'M', 'Z'}; > 40 static const uint8_t loongarch_pe_machtype[6] = {'P', 'E', 0x0, 0x0, 0x64, 0x62}; 41 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki