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Date: Tue, 15 Nov 2022 18:39:29 +0800
From: kernel test robot <lkp@...el.com>
To: Frederic Weisbecker <frederic@...nel.org>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
"Paul E. McKenney" <paulmck@...nel.org>,
Nicolas Saenz Julienne <nsaenzju@...hat.com>
Subject: vmlinux.o: warning: objtool: ct_idle_enter+0x25: call to
ftrace_likely_update() leaves .noinstr.text section
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: e01d50cbd6eece456843717a566a34e8b926cf0c
commit: c33ef43a359001415032665dfcd433979c462b71 rcu/context-tracking: Remove unused and/or unecessary middle functions
date: 4 months ago
config: x86_64-randconfig-a004-20221114
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c33ef43a359001415032665dfcd433979c462b71
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout c33ef43a359001415032665dfcd433979c462b71
# save the config file
mkdir build_dir && cp config build_dir/.config
make 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@...el.com>
All warnings (new ones prefixed by >>):
ld: warning: arch/x86/power/hibernate_asm_64.o: missing .note.GNU-stack section implies executable stack
ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker
vmlinux.o: warning: objtool: __rdgsbase_inactive+0x22: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: __wrgsbase_inactive+0x26: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: fixup_bad_iret+0x76: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: noist_exc_debug+0x40: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: exc_nmi+0x35: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: poke_int3_handler+0x42: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: mce_check_crashing_cpu+0x2c: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: mce_start+0x68: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: do_machine_check+0x4e: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: exc_machine_check+0x4e: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_nmi_enter+0x4c: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_nmi_exit+0x47: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: enter_from_user_mode+0x5b: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode+0x60: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare+0x5b: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_enter_from_user_mode+0x5b: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_exit+0x2d: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: rcu_dynticks_eqs_enter+0x2c: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: rcu_dynticks_eqs_exit+0x29: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: context_tracking_recursion_enter+0x2a: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: rcu_eqs_exit+0x38: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: rcu_eqs_enter+0x43: call to ftrace_likely_update() leaves .noinstr.text section
>> vmlinux.o: warning: objtool: ct_idle_enter+0x25: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: __ct_user_enter+0x30: call to ftrace_likely_update() leaves .noinstr.text section
>> vmlinux.o: warning: objtool: ct_nmi_enter+0x36: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: ct_irq_enter+0x26: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: ct_irq_exit+0x26: call to ftrace_likely_update() leaves .noinstr.text section
objdump-func vmlinux.o ct_idle_enter:
0000 0000000000004cf0 <ct_idle_enter>:
0000 4cf0: f3 0f 1e fa endbr64
0004 4cf4: 55 push %rbp
0005 4cf5: 53 push %rbx
0006 4cf6: 9c pushf
0007 4cf7: 58 pop %rax
0008 4cf8: 25 00 02 00 00 and $0x200,%eax
000d 4cfd: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 4d00: R_X86_64_32S _ftrace_annotated_branch+0x5dd20
0014 4d04: 40 0f 95 c5 setne %bpl
0018 4d08: 48 89 c3 mov %rax,%rbx
001b 4d0b: 31 c9 xor %ecx,%ecx
001d 4d0d: 31 d2 xor %edx,%edx
001f 4d0f: 40 0f b6 ed movzbl %bpl,%ebp
0023 4d13: 89 ee mov %ebp,%esi
0025 4d15: e8 00 00 00 00 call 4d1a <ct_idle_enter+0x2a> 4d16: R_X86_64_PLT32 ftrace_likely_update-0x4
002a 4d1a: 48 85 db test %rbx,%rbx
002d 4d1d: 75 1b jne 4d3a <ct_idle_enter+0x4a>
002f 4d1f: 89 ee mov %ebp,%esi
0031 4d21: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 4d24: R_X86_64_32S _ftrace_annotated_branch+0x5dcf0
0038 4d28: 31 c9 xor %ecx,%ecx
003a 4d2a: 31 d2 xor %edx,%edx
003c 4d2c: e8 00 00 00 00 call 4d31 <ct_idle_enter+0x41> 4d2d: R_X86_64_PLT32 ftrace_likely_update-0x4
0041 4d31: 31 ff xor %edi,%edi
0043 4d33: 5b pop %rbx
0044 4d34: 5d pop %rbp
0045 4d35: e9 86 fd ff ff jmp 4ac0 <rcu_eqs_enter>
004a 4d3a: 90 nop
004b 4d3b: 0f 0b ud2
004d 4d3d: 90 nop
004e 4d3e: eb df jmp 4d1f <ct_idle_enter+0x2f>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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