Hi Peter,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y
head:   98108584d3851344414a5397dcff2c6f0a6cf9dd
commit: dab72c3c32ccde4f362fff993759b0133448d394 [7293/9999] objtool: Add entry UNRET validation
config: x86_64-buildonly-randconfig-r002-20221024
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
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/stable/linux-stable-rc.git/commit/?id=dab72c3c32ccde4f362fff993759b0133448d394
        git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
        git fetch --no-tags linux-stable-rc linux-5.15.y
        git checkout dab72c3c32ccde4f362fff993759b0133448d394
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

>> scripts/link-vmlinux.sh: 123: is_enabled: not found
   vmlinux.o: warning: objtool: sync_regs()+0x20: call to memcpy() leaves .noinstr.text section
   vmlinux.o: warning: objtool: fixup_bad_iret()+0x2f: call to memset() leaves .noinstr.text section
   vmlinux.o: warning: objtool: in_task_stack()+0xc: call to task_stack_page() leaves .noinstr.text section
   vmlinux.o: warning: objtool: in_entry_stack()+0x10: call to cpu_entry_stack() leaves .noinstr.text section
   vmlinux.o: warning: objtool: mce_setup()+0xa4: call to cpuid_eax() leaves .noinstr.text section
   vmlinux.o: warning: objtool: mce_read_aux()+0x4f: call to {dynamic}() leaves .noinstr.text section
   vmlinux.o: warning: objtool: do_machine_check()+0xed: call to mce_gather_info() leaves .noinstr.text section
   ld.lld: error: undefined symbol: fb_set_suspend
   >>> referenced by drm_fb_helper.c
   >>>               gpu/drm/drm_fb_helper.o:(drm_fb_helper_resume_worker) in archive drivers/built-in.a
   >>> referenced by drm_fb_helper.c
   >>>               gpu/drm/drm_fb_helper.o:(drm_fb_helper_set_suspend) in archive drivers/built-in.a
   >>> referenced by drm_fb_helper.c
   >>>               gpu/drm/drm_fb_helper.o:(drm_fb_helper_set_suspend_unlocked) in archive drivers/built-in.a

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp