Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
---
 arch/unicore32/Kconfig          |    1 +
 arch/unicore32/kernel/process.c |   21 +++------------------
 2 files changed, 4 insertions(+), 18 deletions(-)

Index: linux-2.6/arch/unicore32/Kconfig
===================================================================
--- linux-2.6.orig/arch/unicore32/Kconfig
+++ linux-2.6/arch/unicore32/Kconfig
@@ -17,6 +17,7 @@ config UNICORE32
 	select ARCH_WANT_FRAME_POINTERS
 	select GENERIC_IOMAP
 	select MODULES_USE_ELF_REL
+	select GENERIC_IDLE_LOOP
 	help
 	  UniCore-32 is 32-bit Instruction Set Architecture,
 	  including a series of low-power-consumption RISC chip
Index: linux-2.6/arch/unicore32/kernel/process.c
===================================================================
--- linux-2.6.orig/arch/unicore32/kernel/process.c
+++ linux-2.6/arch/unicore32/kernel/process.c
@@ -45,25 +45,10 @@ static const char * const processor_mode
 	"UK18", "UK19", "UK1A", "EXTN", "UK1C", "UK1D", "UK1E", "SUSR"
 };
 
-void cpu_idle(void)
+void arch_cpu_idle(void)
 {
-	/* endless idle loop with no priority at all */
-	while (1) {
-		tick_nohz_idle_enter();
-		rcu_idle_enter();
-		while (!need_resched()) {
-			local_irq_disable();
-			stop_critical_timings();
-			cpu_do_idle();
-			local_irq_enable();
-			start_critical_timings();
-		}
-		rcu_idle_exit();
-		tick_nohz_idle_exit();
-		preempt_enable_no_resched();
-		schedule();
-		preempt_disable();
-	}
+	cpu_do_idle();
+	local_irq_enable();
 }
 
 static char reboot_mode = 'h';