Commit 47403a4b authored by Xin Li (Intel)'s avatar Xin Li (Intel) Committed by Thomas Gleixner
Browse files

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: default avatarH. Peter Anvin (Intel) <hpa@zytor.com>
Signed-off-by: default avatarXin Li (Intel) <xin@zytor.com>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240201094604.3918141-1-xin@zytor.com
parent e37ae643

arch/x86/kernel/nmi.c

+1 −1
Original line number Diff line number Diff line
@@ -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;