Hi Baoquan, kernel test robot noticed the following build warnings: [auto build test WARNING on powerpc/next] [also build test WARNING on powerpc/fixes linus/master v6.6-rc1 next-20230914] [cannot apply to arm64/for-next/core tip/x86/core] [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/Baoquan-He/crash_core-c-remove-unnecessary-parameter-of-function/20230914-113546 base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next patch link: https://lore.kernel.org/r/20230914033142.676708-7-bhe%40redhat.com patch subject: [PATCH v3 6/9] x86: kdump: use generic interface to simplify crashkernel reservation code config: i386-allnoconfig (https://download.01.org/0day-ci/archive/20230914/202309141534.moH4dTcz-lkp@xxxxxxxxx/config) compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230914/202309141534.moH4dTcz-lkp@xxxxxxxxx/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 <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202309141534.moH4dTcz-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> arch/x86/kernel/setup.c:476:15: warning: no previous prototype for function 'crash_low_size_default' [-Wmissing-prototypes] unsigned long crash_low_size_default(void) ^ arch/x86/kernel/setup.c:476:1: note: declare 'static' if the function is not intended to be used outside of this translation unit unsigned long crash_low_size_default(void) ^ static 1 warning generated. vim +/crash_low_size_default +476 arch/x86/kernel/setup.c 472 473 /* 474 * --------- Crashkernel reservation ------------------------------ 475 */ > 476 unsigned long crash_low_size_default(void) 477 { 478 #ifdef CONFIG_X86_64 479 return max(swiotlb_size_or_default() + (8UL << 20), 256UL << 20); 480 #else 481 return 0; 482 #endif 483 } 484 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec