linux-kernel - vmlinux.o: warning: objtool: do_machine_check()+0x1af: call to {dynamic}() leaves .noinstr.text section

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Date:   Fri, 25 Jun 2021 23:12:08 +0800
From:   kernel test robot <lkp@...el.com>
To:     Borislav Petkov <bp@...e.de>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: vmlinux.o: warning: objtool: do_machine_check()+0x1af: call to
 {dynamic}() leaves .noinstr.text section

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   44db63d1ad8d71c6932cbe007eb41f31c434d140
commit: e100777016fdf6ec3a9d7c1773b15a2b5eca6c55 x86/mce: Annotate mce_rd/wrmsrl() with noinstr
date:   9 months ago
config: x86_64-buildonly-randconfig-r002-20210625 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e100777016fdf6ec3a9d7c1773b15a2b5eca6c55
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout e100777016fdf6ec3a9d7c1773b15a2b5eca6c55
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

   vmlinux.o: warning: objtool: idtentry_enter_nmi()+0x51: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: idtentry_exit_nmi()+0x4d: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: fixup_bad_iret()+0x7a: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: noist_exc_debug()+0x7e: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: exc_nmi()+0xeb: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: poke_int3_handler()+0x51: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: mce_check_crashing_cpu()+0x11: call to ftrace_likely_update() leaves .noinstr.text section
>> vmlinux.o: warning: objtool: do_machine_check()+0x1af: call to {dynamic}() leaves .noinstr.text section
   vmlinux.o: warning: objtool: exc_machine_check()+0x6c: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: rcu_dynticks_eqs_enter()+0x20: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: rcu_dynticks_eqs_exit()+0x21: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: rcu_eqs_exit.constprop.0()+0x22: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: rcu_eqs_enter.constprop.0()+0x32: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: rcu_nmi_enter()+0x2c: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: syscall_enter_from_user_mode()+0x31: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: syscall_exit_to_user_mode()+0xad: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: irqentry_enter_from_user_mode()+0x2c: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: irqentry_exit_to_user_mode()+0x2f: call to ftrace_likely_update() leaves .noinstr.text section

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

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