diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 41e7f383e89bd861d3d890920243962f16c5792b..c2ac12b2df7fc2dc604f0056cc7fecbfbbe8956c 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -673,7 +673,6 @@ int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw,
 
 void ath_radio_enable(struct ath_softc *sc, struct ieee80211_hw *hw);
 void ath_radio_disable(struct ath_softc *sc, struct ieee80211_hw *hw);
-bool ath9k_setpower(struct ath_softc *sc, enum ath9k_power_mode mode);
 bool ath9k_uses_beacons(int type);
 
 #ifdef CONFIG_ATH9K_PCI
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 05a909443e13856eade760af02c7277bab6ff569..097225d2505f27b5c0742435728ace2f7cee9ae5 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -67,7 +67,7 @@ static bool ath9k_has_pending_frames(struct ath_softc *sc, struct ath_txq *txq)
 	return pending;
 }
 
-bool ath9k_setpower(struct ath_softc *sc, enum ath9k_power_mode mode)
+static bool ath9k_setpower(struct ath_softc *sc, enum ath9k_power_mode mode)
 {
 	unsigned long flags;
 	bool ret;