arch/x86/kernel/paravirt.o: warning: objtool: paravirt_BUG()+0x3: unreachable instruction

arch/x86/kernel/paravirt.o: warning: objtool: paravirt_BUG()+0x3: unreachable instruction

[kernel test robot]

[-- Attachment #1: Type: text/plain, Size: 1738 bytes --]

CC: linux-kernel(a)vger.kernel.org
TO: Juergen Gross <jgross@suse.com>
CC: Borislav Petkov <bp@suse.de>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   50be9417e23af5a8ac860d998e1e3f06b8fd79d7
commit: fafe5e74229fd3f425e3cbfc68b90e615aa6d62f x86/paravirt: Switch functions with custom code to ALTERNATIVE
date:   4 months ago
config: x86_64-randconfig-r023-20210709 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 8d69635ed9ecf36fd0ca85906bfde17949671cbe)
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
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fafe5e74229fd3f425e3cbfc68b90e615aa6d62f
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout fafe5e74229fd3f425e3cbfc68b90e615aa6d62f
        # 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

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/paravirt.o: warning: objtool: paravirt_BUG()+0x3: unreachable instruction

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

[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 41895 bytes --]