TO: Josh Poimboeuf <jpoimboe(a)redhat.com&gt; CC: Masami Hiramatsu <mhiramat(a)kernel.org&gt; tree: https://git.kernel.org/pub/scm/linux/kernel/git/mhiramat/linux.git kprobes/kretprobe-stackfix-v3 head: 89826b1f814b340c1b78d896da569ff693ab2c51 commit: 240dbe52255834ff0de40f8b4ad4ff8f5d727d0b [5/11] x86/kprobes: Add UNWIND_HINT_FUNC on kretprobe_trampoline code config: x86_64-randconfig-a002-20210318 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project fcc1ce00931751ac02498986feb37744e9ace8de) 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/mhiramat/linux.git/commit... git remote add mhiramat https://git.kernel.org/pub/scm/linux/kernel/git/mhiramat/linux.git git fetch --no-tags mhiramat kprobes/kretprobe-stackfix-v3 git checkout 240dbe52255834ff0de40f8b4ad4ff8f5d727d0b # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 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 >>): arch/x86/kernel/kprobes/core.o: warning: objtool: asan.module_ctor()+0xc: call without frame pointer save/setup arch/x86/kernel/kprobes/core.o: warning: objtool: asan.module_dtor()+0xc: call without frame pointer save/setup --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org