[peterz-queue:x86/wip.ibt 34/39] arch/x86/xen/xen-asm.o: warning: objtool: bad .discard.noendbr entry

[peterz-queue:x86/wip.ibt 34/39] arch/x86/xen/xen-asm.o: warning: objtool: bad .discard.noendbr entry

[kernel test robot]

CC: linux-kernel@vger.kernel.org
TO: Peter Zijlstra <peterz@infradead.org>

Hi Peter,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git x86/wip.ibt
head:   1436dce5f32d577e8cef693e09f4bb1faa0e2692
commit: d94342a792e1b38f567c728a969ae70ed77dfba0 [34/39] objtool: Read the NOENDBR annotation
config: x86_64-randconfig-a011-20220221 (https://download.01.org/0day-ci/archive/20220222/202202221525.2v8cxcwx-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e)
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/peterz/queue.git/commit/?id=d94342a792e1b38f567c728a969ae70ed77dfba0
        git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git
        git fetch --no-tags peterz-queue x86/wip.ibt
        git checkout d94342a792e1b38f567c728a969ae70ed77dfba0
        # 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/xen/xen-asm.o: warning: objtool: bad .discard.noendbr entry

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