From: kernel test robot <lkp@intel.com>
To: Kees Cook <keescook@chromium.org>
Cc: oe-kbuild-all@lists.linux.dev
Subject: [kees:devel/overflow/enable-unsigned-sanitizer 58/119] arch/x86/kernel/nmi.c:564:13: error: argument 3 in call to function '__builtin_add_overflow' has pointer to enumerated type
Date: Wed, 31 Jan 2024 19:29:59 +0800 [thread overview]
Message-ID: <202401311941.GHYNblap-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git devel/overflow/enable-unsigned-sanitizer
head: 5cbd2e2d0a54374525cec9a5a1167daf38feddee
commit: ef341fb241454b950e310efdd75763462a25d9fc [58/119] [WIP] arch/x86/include/asm/percpu.h: wrapping math: use add_wrap()
config: x86_64-kexec (https://download.01.org/0day-ci/archive/20240131/202401311941.GHYNblap-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240131/202401311941.GHYNblap-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202401311941.GHYNblap-lkp@intel.com/
All errors (new ones prefixed by >>):
arch/x86/kernel/nmi.c: In function 'exc_nmi':
>> arch/x86/kernel/nmi.c:564:13: error: argument 3 in call to function '__builtin_add_overflow' has pointer to enumerated type
564 | if (this_cpu_dec_return(nmi_state))
| ^~~~~~~~~~~~~~~~~~~
>> arch/x86/kernel/nmi.c:564:13: error: argument 3 in call to function '__builtin_add_overflow' has pointer to enumerated type
>> arch/x86/kernel/nmi.c:564:13: error: argument 3 in call to function '__builtin_add_overflow' has pointer to enumerated type
>> arch/x86/kernel/nmi.c:564:13: error: argument 3 in call to function '__builtin_add_overflow' has pointer to enumerated type
vim +/__builtin_add_overflow +564 arch/x86/kernel/nmi.c
228bdaa95fb830e Steven Rostedt 2011-12-09 491
71ed49d8fb33023 Thomas Gleixner 2020-06-12 492 DEFINE_IDTENTRY_RAW(exc_nmi)
ccd49c2391773ff Steven Rostedt 2011-12-13 493 {
b6be002bcd1dd1d Thomas Gleixner 2020-11-02 494 irqentry_state_t irq_state;
1a3ea611fc10575 Paul E. McKenney 2022-12-16 495 struct nmi_stats *nsp = this_cpu_ptr(&nmi_stats);
ba1f2b2eaa2a529 Peter Zijlstra 2020-05-27 496
4ca68e023b11e4d Joerg Roedel 2020-09-07 497 /*
4ca68e023b11e4d Joerg Roedel 2020-09-07 498 * Re-enable NMIs right here when running as an SEV-ES guest. This might
4ca68e023b11e4d Joerg Roedel 2020-09-07 499 * cause nested NMIs, but those can be handled safely.
4ca68e023b11e4d Joerg Roedel 2020-09-07 500 */
4ca68e023b11e4d Joerg Roedel 2020-09-07 501 sev_es_nmi_complete();
1a3ea611fc10575 Paul E. McKenney 2022-12-16 502 if (IS_ENABLED(CONFIG_NMI_CHECK_CPU))
0f613bfa8268a89 Mark Rutland 2023-06-05 503 raw_atomic_long_inc(&nsp->idt_calls);
4ca68e023b11e4d Joerg Roedel 2020-09-07 504
8f849ff63bcbc77 Thomas Gleixner 2023-10-02 505 if (IS_ENABLED(CONFIG_SMP) && arch_cpu_is_offline(smp_processor_id())) {
8f849ff63bcbc77 Thomas Gleixner 2023-10-02 506 if (microcode_nmi_handler_enabled())
8f849ff63bcbc77 Thomas Gleixner 2023-10-02 507 microcode_offline_nmi_handler();
60dcaad5736faff Thomas Gleixner 2019-07-24 508 return;
8f849ff63bcbc77 Thomas Gleixner 2023-10-02 509 }
60dcaad5736faff Thomas Gleixner 2019-07-24 510
9d05041679904b1 Andy Lutomirski 2015-07-15 511 if (this_cpu_read(nmi_state) != NMI_NOT_RUNNING) {
9d05041679904b1 Andy Lutomirski 2015-07-15 512 this_cpu_write(nmi_state, NMI_LATCHED);
9d05041679904b1 Andy Lutomirski 2015-07-15 513 return;
9d05041679904b1 Andy Lutomirski 2015-07-15 514 }
9d05041679904b1 Andy Lutomirski 2015-07-15 515 this_cpu_write(nmi_state, NMI_EXECUTING);
9d05041679904b1 Andy Lutomirski 2015-07-15 516 this_cpu_write(nmi_cr2, read_cr2());
f44075ecafb7268 Paul E. McKenney 2023-10-11 517
f44075ecafb7268 Paul E. McKenney 2023-10-11 518 nmi_restart:
1a3ea611fc10575 Paul E. McKenney 2022-12-16 519 if (IS_ENABLED(CONFIG_NMI_CHECK_CPU)) {
1a3ea611fc10575 Paul E. McKenney 2022-12-16 520 WRITE_ONCE(nsp->idt_seq, nsp->idt_seq + 1);
1a3ea611fc10575 Paul E. McKenney 2022-12-16 521 WARN_ON_ONCE(!(nsp->idt_seq & 0x1));
1a3ea611fc10575 Paul E. McKenney 2022-12-16 522 WRITE_ONCE(nsp->recv_jiffies, jiffies);
1a3ea611fc10575 Paul E. McKenney 2022-12-16 523 }
9d05041679904b1 Andy Lutomirski 2015-07-15 524
315562c9af3d583 Joerg Roedel 2020-09-07 525 /*
315562c9af3d583 Joerg Roedel 2020-09-07 526 * Needs to happen before DR7 is accessed, because the hypervisor can
315562c9af3d583 Joerg Roedel 2020-09-07 527 * intercept DR7 reads/writes, turning those into #VC exceptions.
315562c9af3d583 Joerg Roedel 2020-09-07 528 */
315562c9af3d583 Joerg Roedel 2020-09-07 529 sev_es_ist_enter(regs);
315562c9af3d583 Joerg Roedel 2020-09-07 530
fd338e3564b0b85 Peter Zijlstra 2020-05-29 531 this_cpu_write(nmi_dr7, local_db_save());
ccd49c2391773ff Steven Rostedt 2011-12-13 532
b6be002bcd1dd1d Thomas Gleixner 2020-11-02 533 irq_state = irqentry_nmi_enter(regs);
1d48922c14b6363 Don Zickus 2011-09-30 534
1d48922c14b6363 Don Zickus 2011-09-30 535 inc_irq_stat(__nmi_count);
1d48922c14b6363 Don Zickus 2011-09-30 536
1a3ea611fc10575 Paul E. McKenney 2022-12-16 537 if (IS_ENABLED(CONFIG_NMI_CHECK_CPU) && ignore_nmis) {
1a3ea611fc10575 Paul E. McKenney 2022-12-16 538 WRITE_ONCE(nsp->idt_ignored, nsp->idt_ignored + 1);
1a3ea611fc10575 Paul E. McKenney 2022-12-16 539 } else if (!ignore_nmis) {
1a3ea611fc10575 Paul E. McKenney 2022-12-16 540 if (IS_ENABLED(CONFIG_NMI_CHECK_CPU)) {
1a3ea611fc10575 Paul E. McKenney 2022-12-16 541 WRITE_ONCE(nsp->idt_nmi_seq, nsp->idt_nmi_seq + 1);
1a3ea611fc10575 Paul E. McKenney 2022-12-16 542 WARN_ON_ONCE(!(nsp->idt_nmi_seq & 0x1));
1a3ea611fc10575 Paul E. McKenney 2022-12-16 543 }
1d48922c14b6363 Don Zickus 2011-09-30 544 default_do_nmi(regs);
1a3ea611fc10575 Paul E. McKenney 2022-12-16 545 if (IS_ENABLED(CONFIG_NMI_CHECK_CPU)) {
1a3ea611fc10575 Paul E. McKenney 2022-12-16 546 WRITE_ONCE(nsp->idt_nmi_seq, nsp->idt_nmi_seq + 1);
1a3ea611fc10575 Paul E. McKenney 2022-12-16 547 WARN_ON_ONCE(nsp->idt_nmi_seq & 0x1);
1a3ea611fc10575 Paul E. McKenney 2022-12-16 548 }
1a3ea611fc10575 Paul E. McKenney 2022-12-16 549 }
1d48922c14b6363 Don Zickus 2011-09-30 550
b6be002bcd1dd1d Thomas Gleixner 2020-11-02 551 irqentry_nmi_exit(regs, irq_state);
228bdaa95fb830e Steven Rostedt 2011-12-09 552
fd338e3564b0b85 Peter Zijlstra 2020-05-29 553 local_db_restore(this_cpu_read(nmi_dr7));
9d05041679904b1 Andy Lutomirski 2015-07-15 554
315562c9af3d583 Joerg Roedel 2020-09-07 555 sev_es_ist_exit();
315562c9af3d583 Joerg Roedel 2020-09-07 556
9d05041679904b1 Andy Lutomirski 2015-07-15 557 if (unlikely(this_cpu_read(nmi_cr2) != read_cr2()))
9d05041679904b1 Andy Lutomirski 2015-07-15 558 write_cr2(this_cpu_read(nmi_cr2));
1a3ea611fc10575 Paul E. McKenney 2022-12-16 559 if (IS_ENABLED(CONFIG_NMI_CHECK_CPU)) {
1a3ea611fc10575 Paul E. McKenney 2022-12-16 560 WRITE_ONCE(nsp->idt_seq, nsp->idt_seq + 1);
1a3ea611fc10575 Paul E. McKenney 2022-12-16 561 WARN_ON_ONCE(nsp->idt_seq & 0x1);
1a3ea611fc10575 Paul E. McKenney 2022-12-16 562 WRITE_ONCE(nsp->recv_jiffies, jiffies);
1a3ea611fc10575 Paul E. McKenney 2022-12-16 563 }
f44075ecafb7268 Paul E. McKenney 2023-10-11 @564 if (this_cpu_dec_return(nmi_state))
f44075ecafb7268 Paul E. McKenney 2023-10-11 565 goto nmi_restart;
f44075ecafb7268 Paul E. McKenney 2023-10-11 566
f44075ecafb7268 Paul E. McKenney 2023-10-11 567 if (user_mode(regs))
f44075ecafb7268 Paul E. McKenney 2023-10-11 568 mds_user_clear_cpu_buffers();
1d48922c14b6363 Don Zickus 2011-09-30 569 }
1d48922c14b6363 Don Zickus 2011-09-30 570
:::::: The code at line 564 was first introduced by commit
:::::: f44075ecafb726830e63d33fbca29413149eeeb8 x86/nmi: Fix out-of-order NMI nesting checks & false positive warning
:::::: TO: Paul E. McKenney <paulmck@kernel.org>
:::::: CC: Ingo Molnar <mingo@kernel.org>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2024-01-31 11:30 UTC|newest]
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