x86: make nmi_cpu_busy() always defined
nmi_cpu_busy() must be available on !SMP too.
this is in preparation to a smp_call_function_mask() fix.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/nmi_32.c b/arch/x86/kernel/nmi_32.c
index f803ed0..600fd40 100644
--- a/arch/x86/kernel/nmi_32.c
+++ b/arch/x86/kernel/nmi_32.c
@@ -51,13 +51,13 @@
static int endflag __initdata = 0;
-#ifdef CONFIG_SMP
/* The performance counters used by NMI_LOCAL_APIC don't trigger when
* the CPU is idle. To make sure the NMI watchdog really ticks on all
* CPUs during the test make them busy.
*/
static __init void nmi_cpu_busy(void *data)
{
+#ifdef CONFIG_SMP
local_irq_enable_in_hardirq();
/* Intentionally don't use cpu_relax here. This is
to make sure that the performance counter really ticks,
@@ -67,8 +67,8 @@
care if they get somewhat less cycles. */
while (endflag == 0)
mb();
-}
#endif
+}
static int __init check_nmi_watchdog(void)
{