diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index 00e326c..e00a386 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -72,7 +72,7 @@ static struct devfreq *find_device_devfreq(struct device *dev)
 	return ERR_PTR(-ENODEV);
 }
 
-int devfreq_get_freq_level(struct devfreq *devfreq, unsigned long freq)
+static int devfreq_get_freq_level(struct devfreq *devfreq, unsigned long freq)
 {
 	int lev;
 
@@ -83,7 +83,7 @@ int devfreq_get_freq_level(struct devfreq *devfreq, unsigned long freq)
 	return -EINVAL;
 }
 
-int devfreq_update_status(struct devfreq *devfreq, unsigned long freq)
+static int devfreq_update_status(struct devfreq *devfreq, unsigned long freq)
 {
 	int lev, prev_lev;
 	unsigned long cur_time;