ARM64 idle: delete pm_idle

pm_idle() on arm64 was a synonym for default_idle(),
so remove it and invoke default_idle() directly.

Signed-off-by: Len Brown <len.brown@intel.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>

diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index cb0956b..c7002d4 100644 (file)
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -97,14 +97,9 @@ static void default_idle(void)
        local_irq_enable();
 }
 
-void (*pm_idle)(void) = default_idle;
-EXPORT_SYMBOL_GPL(pm_idle);
-
 /*
- * The idle thread, has rather strange semantics for calling pm_idle,
- * but this is what x86 does and we need to do the same, so that
- * things like cpuidle get called in the same way.  The only difference
- * is that we always respect 'hlt_counter' to prevent low power idle.
+ * The idle thread.
+ * We always respect 'hlt_counter' to prevent low power idle.
  */
 void cpu_idle(void)
 {
@@ -122,10 +117,10 @@ void cpu_idle(void)
                        local_irq_disable();
                        if (!need_resched()) {
                                stop_critical_timings();
-                               pm_idle();
+                               default_idle();
                                start_critical_timings();
                                /*
-                                * pm_idle functions should always return
+                                * default_idle functions should always return
                                 * with IRQs enabled.
                                 */
                                WARN_ON(irqs_disabled());