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-rw-r--r--sound/soc/atmel/atmel-pdmic.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/soc/atmel/atmel-pdmic.c b/sound/soc/atmel/atmel-pdmic.c
index 5f56da60c92f..4cce36e07360 100644
--- a/sound/soc/atmel/atmel-pdmic.c
+++ b/sound/soc/atmel/atmel-pdmic.c
@@ -283,7 +283,7 @@ static const DECLARE_TLV_DB_RANGE(mic_gain_tlv,
 	8, ARRAY_SIZE(mic_gain_table)-1, TLV_DB_SCALE_ITEM(-6500, 100, 0),
 );
 
-int pdmic_get_mic_volsw(struct snd_kcontrol *kcontrol,
+static int pdmic_get_mic_volsw(struct snd_kcontrol *kcontrol,
 	struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);