tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 02951ceaa6d546dfa0f741f52f6d47e0fb0ac7b4 commit: 56bc1719652e7a937bc9856f76f0c0fbf8ce1b23 [1336/1336] objtool: Support GCC 9 cold subfunction naming scheme config: x86_64-buildonly-randconfig-001-20241219 (https://download.01.org/0day-ci/archive/20241220/202412201921.TZ1izhG7-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/20241220/202412201921.TZ1izhG7-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/202412201921.TZ1izhG7-lkp@intel.com/

All warnings (new ones prefixed by >>):

kernel/time/posix-stubs.c:27:17: warning: no previous prototype for 'sys_ni_posix_timers' [-Wmissing-prototypes] 27 | asmlinkage long sys_ni_posix_timers(void) | ^~~~~~~~~~~~~~~~~~~ kernel/time/posix-stubs.c:74:5: warning: no previous prototype for 'do_clock_gettime' [-Wmissing-prototypes] 74 | int do_clock_gettime(clockid_t which_clock, struct timespec64 *tp) | ^~~~~~~~~~~~~~~~

...

kernel/time/.tmp_posix-stubs.o: warning: objtool: sys_ni_posix_timers.cold()+0x0: unreachable instruction