Hi Shile, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: a8a9daf97ebc8e303e039402fe784e7bd4e5a9bb commit: badd79c400ed404df871e1d035bed971d20ead4c [1327/1327] x86/unwind/orc: Remove boot-time ORC unwind tables sorting config: x86_64-buildonly-randconfig-004-20241216 (https://download.01.org/0day-ci/archive/20241228/202412280732.HThqDDS9-lkp@i...) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241228/202412280732.HThqDDS9-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/202412280732.HThqDDS9-lkp@intel.com/ All warnings (new ones prefixed by >>): arch/x86/kernel/unwind_orc.c:179:13: warning: unused function 'orc_sort_swap' [-Wunused-function] 179 | static void orc_sort_swap(void *_a, void *_b, int size) | ^~~~~~~~~~~~~ arch/x86/kernel/unwind_orc.c:199:12: warning: unused function 'orc_sort_cmp' [-Wunused-function] 199 | static int orc_sort_cmp(const void *_a, const void *_b) | ^~~~~~~~~~~~ 2 warnings generated.

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arch/x86/kernel/unwind_orc.o: warning: objtool: missing symbol for section .text

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