linux-kernel - vmlinux.o: warning: objtool: __sev_es_ist_exit()+0x2b: call to ftrace_likely

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Message-ID: <202203090119.Hj4y6WNM-lkp@intel.com>
Date:   Wed, 9 Mar 2022 01:32:16 +0800
From:   kernel test robot <lkp@...el.com>
To:     Joerg Roedel <jroedel@...e.de>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Borislav Petkov <bp@...e.de>
Subject: vmlinux.o: warning: objtool: __sev_es_ist_exit()+0x2b: call to
 ftrace_likely_update() leaves .noinstr.text section

Hi Joerg,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   ea4424be16887a37735d6550cfd0611528dbe5d9
commit: 315562c9af3d583502b35c4b223a08d95ce69864 x86/sev-es: Adjust #VC IST Stack on entering NMI handler
date:   1 year, 6 months ago
config: x86_64-buildonly-randconfig-r004-20220307 (https://download.01.org/0day-ci/archive/20220309/202203090119.Hj4y6WNM-lkp@intel.com/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=315562c9af3d583502b35c4b223a08d95ce69864
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 315562c9af3d583502b35c4b223a08d95ce69864
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 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@...el.com>

All warnings (new ones prefixed by >>):

   vmlinux.o: warning: objtool: __do_fast_syscall_32()+0x45: call to syscall_enter_from_user_mode_work() leaves .noinstr.text section
   vmlinux.o: warning: objtool: do_int80_syscall_32()+0x35: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: idtentry_enter_nmi()+0x4a: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: idtentry_exit_nmi()+0x52: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: __rdgsbase_inactive()+0x23: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: __wrgsbase_inactive()+0x27: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: fixup_bad_iret()+0x84: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: noist_exc_debug()+0x25: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: exc_nmi()+0x179: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: poke_int3_handler()+0x48: call to ftrace_likely_update() leaves .noinstr.text section
>> vmlinux.o: warning: objtool: __sev_es_ist_exit()+0x2b: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: syscall_enter_from_user_mode()+0x3f: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare()+0x39: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: syscall_exit_to_user_mode()+0xd5: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: irqentry_enter_from_user_mode()+0x39: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: irqentry_exit_to_user_mode()+0x32: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: irqentry_exit()+0x2a: call to ftrace_likely_update() leaves .noinstr.text section
   vmlinux.o: warning: objtool: debug_locks_off()+0x21: call to __kasan_check_write() leaves .noinstr.text section

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