diff --git a/drivers/net/wireless/ath/key.c b/drivers/net/wireless/ath/key.c
index bd21a4d82085..1e9aa326ca08 100644
--- a/drivers/net/wireless/ath/key.c
+++ b/drivers/net/wireless/ath/key.c
@@ -67,7 +67,8 @@ bool ath_hw_keyreset(struct ath_common *common, u16 entry)
 }
 EXPORT_SYMBOL(ath_hw_keyreset);
 
-bool ath_hw_keysetmac(struct ath_common *common, u16 entry, const u8 *mac)
+static bool ath_hw_keysetmac(struct ath_common *common,
+			     u16 entry, const u8 *mac)
 {
 	u32 macHi, macLo;
 	u32 unicast_flag = AR_KEYTABLE_VALID;