diff --git a/arch/csky/kernel/power.c b/arch/csky/kernel/power.c
index 86ee202906f8d4a1fe28ea4eb0864c5c77867dea..0e1f883a30119700e5d3f6c83ea13635da1079c7 100644
--- a/arch/csky/kernel/power.c
+++ b/arch/csky/kernel/power.c
@@ -3,9 +3,6 @@
 
 #include <linux/reboot.h>
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 void machine_power_off(void)
 {
 	local_irq_disable();