[linux-next:master 8273/11721] kernel/kcsan/selftest.o: warning: objtool: test_encode_decode()+0x1d6: unreachable instruction

CC: Linux Memory Management List <redacted>
TO: Marco Elver <elver@google.com>
CC: "Paul E. McKenney" <paulmck@kernel.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   14c6345e6e6ca0570f3897214f24748ef6009761
commit: 0691dc8228838db83eeb861a491d8b637f0f2c2b [8273/11721] kcsan: selftest: Cleanup and add missing __init
config: x86_64-randconfig-a001-20210905 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 6fe2beba7d2a41964af658c8c59dd172683ef739)
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/next/linux-next.git/commit/?id=0691dc8228838db83eeb861a491d8b637f0f2c2b
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout 0691dc8228838db83eeb861a491d8b637f0f2c2b
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/ drivers/ kernel/ net/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <redacted>

All warnings (new ones prefixed by >>):

quoted

kernel/kcsan/selftest.o: warning: objtool: test_encode_decode()+0x1d6: unreachable instruction

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