[kbuild-all] kernel/sched/fair.o: warning: objtool: unthrottle_cfs_rq()+0xf5f: unreachable instruction

CC: linux-kernel(a)vger.kernel.org TO: "Michal Koutný" <mkoutny(a)suse.com&gt; CC: Peter Zijlstra <peterz(a)infradead.org&gt; CC: Vincent Guittot <vincent.guittot(a)linaro.org&gt; CC: Odin Ugedal <odin(a)uged.al&gt; tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: a763d5a5abd65797aec3dd1bf01fe2ccbec32967 commit: 2630cde26711dab0d0b56a8be1616475be646d13 sched/fair: Add ancestors of unthrottled undecayed cfs_rq date: 2 months ago config: x86_64-randconfig-a001-20211204 (https://download.01.org/0day-ci/archive/20211212/202112122318.o1Hst9VM-lk...) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 5f1d1854eb1450d352663ee732235893c5782237) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 2630cde26711dab0d0b56a8be1616475be646d13 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/ block// drivers/ fs/ kernel/ net/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org