diff --git a/include/sound/control.h b/include/sound/control.h
index 3dc1291f52db78e8f525801f1b79204180e91dbf..4721b4bba0538360cd808db6c6cc0f13db9a3c7a 100644
--- a/include/sound/control.h
+++ b/include/sound/control.h
@@ -129,9 +129,6 @@ int snd_ctl_unregister_ioctl_compat(snd_kctl_ioctl_func_t fcn);
 #define snd_ctl_unregister_ioctl_compat(fcn)
 #endif
 
-int snd_ctl_elem_read(struct snd_card *card, struct snd_ctl_elem_value *control);
-int snd_ctl_elem_write(struct snd_card *card, struct snd_ctl_file *file, struct snd_ctl_elem_value *control);
-
 static inline unsigned int snd_ctl_get_ioffnum(struct snd_kcontrol *kctl, struct snd_ctl_elem_id *id)
 {
 	return id->numid - kctl->id.numid;
diff --git a/sound/core/control.c b/sound/core/control.c
index 01a1a5af47bb7749e90370c7ff92dbae528b6199..281b2e2ef0eac0bb4b87c4a475433a466459a98d 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -684,7 +684,8 @@ static int snd_ctl_elem_info_user(struct snd_ctl_file *ctl,
 	return result;
 }
 
-int snd_ctl_elem_read(struct snd_card *card, struct snd_ctl_elem_value *control)
+static int snd_ctl_elem_read(struct snd_card *card,
+			     struct snd_ctl_elem_value *control)
 {
 	struct snd_kcontrol *kctl;
 	struct snd_kcontrol_volatile *vd;
@@ -734,8 +735,8 @@ static int snd_ctl_elem_read_user(struct snd_card *card,
 	return result;
 }
 
-int snd_ctl_elem_write(struct snd_card *card, struct snd_ctl_file *file,
-		       struct snd_ctl_elem_value *control)
+static int snd_ctl_elem_write(struct snd_card *card, struct snd_ctl_file *file,
+			      struct snd_ctl_elem_value *control)
 {
 	struct snd_kcontrol *kctl;
 	struct snd_kcontrol_volatile *vd;