[bpf-next:master 214/221] arch/x86/kernel/alternative.o: warning: objtool: text_poke_copy()+0x83: unreachable instruction

[bpf-next:master 214/221] arch/x86/kernel/alternative.o: warning: objtool: text_poke_copy()+0x83: unreachable instruction

[kernel test robot]

CC: linux-kernel@vger.kernel.org
TO: Song Liu <song@kernel.org>
CC: Alexei Starovoitov <ast@kernel.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
head:   5d1e9f437df5ef21e7567f1970a00fda3b5d1126
commit: 0e06b40371682b6b70ed0302a7baec0698ada95c [214/221] x86/alternative: Introduce text_poke_copy
config: x86_64-buildonly-randconfig-r002-20220207 (https://download.01.org/0day-ci/archive/20220208/202202081833.UR8dczjA-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project e8bff9ae54a55b4dbfeb6ba55f723abbd81bf494)
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/bpf/bpf-next.git/commit/?id=0e06b40371682b6b70ed0302a7baec0698ada95c
        git remote add bpf-next https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git
        git fetch --no-tags bpf-next master
        git checkout 0e06b40371682b6b70ed0302a7baec0698ada95c
        # 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/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> arch/x86/kernel/alternative.o: warning: objtool: text_poke_copy()+0x83: unreachable instruction

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org