diff --git a/arch/h8300/kernel/process.c b/arch/h8300/kernel/process.c
index ed79ae2..dd344f1 100644
--- a/arch/h8300/kernel/process.c
+++ b/arch/h8300/kernel/process.c
@@ -45,6 +45,9 @@
 #include <asm/setup.h>
 #include <asm/pgtable.h>
 
+void (*pm_power_off)(void) = NULL;
+EXPORT_SYMBOL(pm_power_off);
+
 asmlinkage void ret_from_fork(void);
 
 /*
diff --git a/arch/v850/kernel/process.c b/arch/v850/kernel/process.c
index eb90993..621111d 100644
--- a/arch/v850/kernel/process.c
+++ b/arch/v850/kernel/process.c
@@ -30,6 +30,9 @@
 #include <asm/system.h>
 #include <asm/pgtable.h>
 
+void (*pm_power_off)(void) = NULL;
+EXPORT_SYMBOL(pm_power_off);
+
 extern void ret_from_fork (void);
 
 
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index f1f5966..64a649e 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -64,6 +64,9 @@
 
 struct task_struct *current_set[NR_CPUS] = {&init_task, };
 
+void (*pm_power_off)(void) = NULL;
+EXPORT_SYMBOL(pm_power_off);
+
 
 #if XCHAL_CP_NUM > 0