Hi Mahesh, kernel test robot noticed the following build errors:
[auto build test ERROR on linus/master] [also build test ERROR on v6.5-rc2 next-20230720] [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/Mahesh-J-Salgaonkar/kdump-fix/20230720-021115 base: linus/master patch link: https://lore.kernel.org/r/2ogfzwjumrd44kxv7njfpot6fhtkzpqu77qv3bspfixdmsxcwc%40umt35y2hmslm patch subject: [PATCH] kdump fix config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20230721/202307211100.udh0fq50-...@intel.com/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce: (https://download.01.org/0day-ci/archive/20230721/202307211100.udh0fq50-...@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/202307211100.udh0fq50-...@intel.com/ All errors (new ones prefixed by >>): kernel/kexec_file.c: In function 'crash_prepare_elf64_headers': >> kernel/kexec_file.c:1282:25: error: 'ELF_CORE_EFLAGS' undeclared (first use >> in this function) 1282 | ehdr->e_flags = ELF_CORE_EFLAGS; | ^~~~~~~~~~~~~~~ kernel/kexec_file.c:1282:25: note: each undeclared identifier is reported only once for each function it appears in vim +/ELF_CORE_EFLAGS +1282 kernel/kexec_file.c 1236 1237 int crash_prepare_elf64_headers(struct crash_mem *mem, int need_kernel_map, 1238 void **addr, unsigned long *sz) 1239 { 1240 Elf64_Ehdr *ehdr; 1241 Elf64_Phdr *phdr; 1242 unsigned long nr_cpus = num_possible_cpus(), nr_phdr, elf_sz; 1243 unsigned char *buf; 1244 unsigned int cpu, i; 1245 unsigned long long notes_addr; 1246 unsigned long mstart, mend; 1247 1248 /* extra phdr for vmcoreinfo ELF note */ 1249 nr_phdr = nr_cpus + 1; 1250 nr_phdr += mem->nr_ranges; 1251 1252 /* 1253 * kexec-tools creates an extra PT_LOAD phdr for kernel text mapping 1254 * area (for example, ffffffff80000000 - ffffffffa0000000 on x86_64). 1255 * I think this is required by tools like gdb. So same physical 1256 * memory will be mapped in two ELF headers. One will contain kernel 1257 * text virtual addresses and other will have __va(physical) addresses. 1258 */ 1259 1260 nr_phdr++; 1261 elf_sz = sizeof(Elf64_Ehdr) + nr_phdr * sizeof(Elf64_Phdr); 1262 elf_sz = ALIGN(elf_sz, ELF_CORE_HEADER_ALIGN); 1263 1264 buf = vzalloc(elf_sz); 1265 if (!buf) 1266 return -ENOMEM; 1267 1268 ehdr = (Elf64_Ehdr *)buf; 1269 phdr = (Elf64_Phdr *)(ehdr + 1); 1270 memcpy(ehdr->e_ident, ELFMAG, SELFMAG); 1271 ehdr->e_ident[EI_CLASS] = ELFCLASS64; 1272 ehdr->e_ident[EI_DATA] = ELFDATA2LSB; 1273 ehdr->e_ident[EI_VERSION] = EV_CURRENT; 1274 ehdr->e_ident[EI_OSABI] = ELF_OSABI; 1275 memset(ehdr->e_ident + EI_PAD, 0, EI_NIDENT - EI_PAD); 1276 ehdr->e_type = ET_CORE; 1277 ehdr->e_machine = ELF_ARCH; 1278 ehdr->e_version = EV_CURRENT; 1279 ehdr->e_phoff = sizeof(Elf64_Ehdr); 1280 ehdr->e_ehsize = sizeof(Elf64_Ehdr); 1281 ehdr->e_phentsize = sizeof(Elf64_Phdr); > 1282 ehdr->e_flags = ELF_CORE_EFLAGS; -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
