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-rw-r--r--include/linux/sched.h8
-rw-r--r--init/main.c4
-rw-r--r--kernel/sched.c4
3 files changed, 10 insertions, 6 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 2cc789fef711..ee800e7a70de 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1988,6 +1988,14 @@ static inline void inc_syscw(struct task_struct *tsk)
}
#endif
+#ifdef CONFIG_SMP
+void migration_init(void);
+#else
+static inline void migration_init(void)
+{
+}
+#endif
+
#endif /* __KERNEL__ */
#endif
diff --git a/init/main.c b/init/main.c
index f605a969ea61..80b04b6c5157 100644
--- a/init/main.c
+++ b/init/main.c
@@ -56,6 +56,7 @@
#include <linux/pid_namespace.h>
#include <linux/device.h>
#include <linux/kthread.h>
+#include <linux/sched.h>
#include <asm/io.h>
#include <asm/bugs.h>
@@ -747,11 +748,8 @@ __setup("nosoftlockup", nosoftlockup_setup);
static void __init do_pre_smp_initcalls(void)
{
extern int spawn_ksoftirqd(void);
-#ifdef CONFIG_SMP
- extern int migration_init(void);
migration_init();
-#endif
spawn_ksoftirqd();
if (!nosoftlockup)
spawn_softlockup_task();
diff --git a/kernel/sched.c b/kernel/sched.c
index e195a4229418..b18f231a4875 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -5650,7 +5650,7 @@ static struct notifier_block __cpuinitdata migration_notifier = {
.priority = 10
};
-int __init migration_init(void)
+void __init migration_init(void)
{
void *cpu = (void *)(long)smp_processor_id();
int err;
@@ -5660,8 +5660,6 @@ int __init migration_init(void)
BUG_ON(err == NOTIFY_BAD);
migration_call(&migration_notifier, CPU_ONLINE, cpu);
register_cpu_notifier(&migration_notifier);
-
- return 0;
}
#endif