tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 944ce05f6b83ba40c4382c6b90b7b94f529118d3 commit: 47ff774cbb440dfc3cf5d5bc7cf82b41d4d99966 [2007/2007] x86, crash: wrap crash dumping code into crash related ifdefs config: x86_64-randconfig-123-20250309 (https://download.01.org/0day-ci/archive/20250309/202503091725.g6h6oRC3-lkp@i...) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250309/202503091725.g6h6oRC3-lkp@i...) 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@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202503091725.g6h6oRC3-lkp@intel.com/ All errors (new ones prefixed by >>): ld: vmlinux.o: in function `__crash_kexec': kernel/kexec_core.c:1066: undefined reference to `machine_crash_shutdown' ld: vmlinux.o: in function `do_kexec_load':

...

kernel/kexec.c:166: undefined reference to `arch_kexec_protect_crashkres' ld: kernel/kexec.c:105: undefined reference to `arch_kexec_unprotect_crashkres' ld: vmlinux.o: in function `__do_sys_kexec_file_load': kernel/kexec_file.c:350: undefined reference to `arch_kexec_unprotect_crashkres' ld: kernel/kexec_file.c:415: undefined reference to `arch_kexec_protect_crashkres'

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