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-rw-r--r--arch/x86/kernel/apic/hw_nmi.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic/hw_nmi.c b/arch/x86/kernel/apic/hw_nmi.c
index 312d772c5c35..0b4d205a6b8e 100644
--- a/arch/x86/kernel/apic/hw_nmi.c
+++ b/arch/x86/kernel/apic/hw_nmi.c
@@ -92,6 +92,7 @@ u64 hw_nmi_get_sample_period(void)
return cpu_khz * 1000;
}
+#ifdef ARCH_HAS_NMI_WATCHDOG
void arch_trigger_all_cpu_backtrace(void)
{
int i;
@@ -108,6 +109,7 @@ void arch_trigger_all_cpu_backtrace(void)
mdelay(1);
}
}
+#endif
/* STUB calls to mimic old nmi_watchdog behaviour */
#if defined(CONFIG_X86_LOCAL_APIC)
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