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 f803ed0ed1c41ffea809a87ad70bb5e655346cfe..600fd404e4401b0901f3cba7fb80ef69aa518cbd 100644 (file)
--- a/arch/x86/kernel/nmi_32.c
+++ b/arch/x86/kernel/nmi_32.c
@@ -51,13 +51,13 @@ static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu);
 
 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 @@ static __init void nmi_cpu_busy(void *data)
           care if they get somewhat less cycles. */
        while (endflag == 0)
                mb();
-}
 #endif
+}
 
 static int __init check_nmi_watchdog(void)
 {