Hi Nicholas, First bad commit (maybe != root cause): tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: df8d11fbcbb07177c2500e63d7f5a36063977596 commit: 004cface9c1c0b6351473934a4ce452193e05b07 [1941/1941] mm: Move vmap_range from mm/ioremap.c to mm/vmalloc.c config: x86_64-buildonly-randconfig-004-20251212 (https://download.01.org/0day-ci/archive/20251213/202512130605.0REtc4uw-lkp@i...) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 1335a05ab8bc8339ce24be3a9da89d8c3f4e0571) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251213/202512130605.0REtc4uw-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/202512130605.0REtc4uw-lkp@intel.com/ All warnings (new ones prefixed by >>):

...

mm/ioremap.o: warning: objtool: missing symbol for section .text

-- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki