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-rw-r--r--kernel/sched_idletask.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/sched_idletask.c b/kernel/sched_idletask.c
index 586b06ca30aa..bf9c25c15b8b 100644
--- a/kernel/sched_idletask.c
+++ b/kernel/sched_idletask.c
@@ -37,6 +37,7 @@ static void put_prev_task_idle(struct rq *rq, struct task_struct *prev)
{
}
+#ifdef CONFIG_SMP
static unsigned long
load_balance_idle(struct rq *this_rq, int this_cpu, struct rq *busiest,
unsigned long max_load_move,
@@ -52,6 +53,7 @@ move_one_task_idle(struct rq *this_rq, int this_cpu, struct rq *busiest,
{
return 0;
}
+#endif
static void task_tick_idle(struct rq *rq, struct task_struct *curr)
{
@@ -76,8 +78,10 @@ const struct sched_class idle_sched_class = {
.pick_next_task = pick_next_task_idle,
.put_prev_task = put_prev_task_idle,
+#ifdef CONFIG_SMP
.load_balance = load_balance_idle,
.move_one_task = move_one_task_idle,
+#endif
.set_curr_task = set_curr_task_idle,
.task_tick = task_tick_idle,
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