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charset=us-ascii tree: https://git.kernel.org/pub/scm/linux/kernel/git/thomas.weissschuh/linux.git b4/riscv-cfi-vdso-alternative head: fa83dca7c15f5aefda0432bda4aa4a802766ca70 commit: 45f16afdf0331f9d95eac2a3d328f715fbe316bb [2/4] riscv: alternative: Replace ifdeffery around apply_vdso_alternatives() with IS_ENABLED() config: riscv-randconfig-001-20260430 (https://download.01.org/0day-ci/archive/20260430/202604301147.qlAxtlut-lkp@intel.com/config) compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 5bac06718f502014fade905512f1d26d578a18f3) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260430/202604301147.qlAxtlut-lkp@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 | Closes: https://lore.kernel.org/oe-kbuild-all/202604301147.qlAxtlut-lkp@intel.com/ All errors (new ones prefixed by >>): >> arch/riscv/kernel/alternative.c:183:20: error: use of undeclared identifier 'vdso_start' 183 | hdr = (Elf_Ehdr *)vdso_start; | ^~~~~~~~~~ 1 error generated. vim +/vdso_start +183 arch/riscv/kernel/alternative.c d14ca1f8d30399 Heiko Stuebner 2022-05-11 175 cabfd146b37146 Jisheng Zhang 2023-01-29 176 static void __init apply_vdso_alternatives(void) cabfd146b37146 Jisheng Zhang 2023-01-29 177 { cabfd146b37146 Jisheng Zhang 2023-01-29 178 const Elf_Ehdr *hdr; cabfd146b37146 Jisheng Zhang 2023-01-29 179 const Elf_Shdr *shdr; cabfd146b37146 Jisheng Zhang 2023-01-29 180 const Elf_Shdr *alt; cabfd146b37146 Jisheng Zhang 2023-01-29 181 struct alt_entry *begin, *end; cabfd146b37146 Jisheng Zhang 2023-01-29 182 cabfd146b37146 Jisheng Zhang 2023-01-29 @183 hdr = (Elf_Ehdr *)vdso_start; cabfd146b37146 Jisheng Zhang 2023-01-29 184 shdr = (void *)hdr + hdr->e_shoff; cabfd146b37146 Jisheng Zhang 2023-01-29 185 alt = find_section(hdr, shdr, ".alternative"); cabfd146b37146 Jisheng Zhang 2023-01-29 186 if (!alt) cabfd146b37146 Jisheng Zhang 2023-01-29 187 return; cabfd146b37146 Jisheng Zhang 2023-01-29 188 cabfd146b37146 Jisheng Zhang 2023-01-29 189 begin = (void *)hdr + alt->sh_offset, cabfd146b37146 Jisheng Zhang 2023-01-29 190 end = (void *)hdr + alt->sh_offset + alt->sh_size, cabfd146b37146 Jisheng Zhang 2023-01-29 191 cabfd146b37146 Jisheng Zhang 2023-01-29 192 _apply_alternatives((struct alt_entry *)begin, cabfd146b37146 Jisheng Zhang 2023-01-29 193 (struct alt_entry *)end, cabfd146b37146 Jisheng Zhang 2023-01-29 194 RISCV_ALTERNATIVES_BOOT); cabfd146b37146 Jisheng Zhang 2023-01-29 195 } cabfd146b37146 Jisheng Zhang 2023-01-29 196 :::::: The code at line 183 was first introduced by commit :::::: cabfd146b371462ed480a968f98eb0c2c80e3c8a riscv: alternative: patch alternatives in the vDSO :::::: TO: Jisheng Zhang :::::: CC: Palmer Dabbelt -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki