Re: [linux-pm] [PATCH] CPUidle: compile fix for non-x86

[Kevin Hilman <khilman@mvista.com>]

[Updated patch pased on suggestions from Venkatesh.]

Convert cpu_idle_wait() to cpuidle_kick_cpus() macro which is
SMP-only, and gives error on non supported CPU.

Signed-off-by: Kevin Hilman <khilman@mvista.com>

diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index d2fabe7..762d878 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -18,6 +18,14 @@
 
 #include "cpuidle.h"
 
+#if !defined(CONFIG_SMP)
+#define cpuidle_kick_cpus()	do { } while (0)
+#elif defined(CONFIG_X86)
+#define cpuidle_kick_cpus()	cpu_idle_wait()
+#else
+#error "Arch needs cpu_idle_wait() equivalent here"
+#endif
+
 DEFINE_PER_CPU(struct cpuidle_device *, cpuidle_devices);
 
 DEFINE_MUTEX(cpuidle_lock);
@@ -82,7 +90,7 @@ void cpuidle_uninstall_idle_handler(void)
 {
 	if (enabled_devices && (pm_idle != pm_idle_old)) {
 		pm_idle = pm_idle_old;
-		cpu_idle_wait();
+		cpuidle_kick_cpus();
 	}
 }