diff options
| author | Xin Li (Intel) <xin@zytor.com> | 2024-02-01 01:46:04 -0800 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2024-02-27 22:00:50 +0100 |
| commit | 47403a4b49767f1d533e4dc5f5cf5cc957f22a5e (patch) | |
| tree | 81701795c6a6742162bcb18c23fca6bcc8c81d1c /arch | |
| parent | e37ae6433a5eeb5fb66e3de4b97cdda68ee2c5e8 (diff) | |
x86/nmi: Remove an unnecessary IS_ENABLED(CONFIG_SMP)
IS_ENABLED(CONFIG_SMP) is unnecessary here: smp_processor_id() should
always return zero on UP, and arch_cpu_is_offline() reduces to
!(cpu == 0), so this is a statically false condition on UP.
Suggested-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Signed-off-by: Xin Li (Intel) <xin@zytor.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240201094604.3918141-1-xin@zytor.com
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/nmi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c index 17e955ab69fe..44fe569e643c 100644 --- a/arch/x86/kernel/nmi.c +++ b/arch/x86/kernel/nmi.c @@ -502,7 +502,7 @@ DEFINE_IDTENTRY_RAW(exc_nmi) if (IS_ENABLED(CONFIG_NMI_CHECK_CPU)) raw_atomic_long_inc(&nsp->idt_calls); - if (IS_ENABLED(CONFIG_SMP) && arch_cpu_is_offline(smp_processor_id())) { + if (arch_cpu_is_offline(smp_processor_id())) { if (microcode_nmi_handler_enabled()) microcode_offline_nmi_handler(); return; |