diff --git a/sys/contrib/dev/ath/ath_hal/ar9300/ar9300.h b/sys/contrib/dev/ath/ath_hal/ar9300/ar9300.h
index 49e887353e52..da74b4031860 100644
--- a/sys/contrib/dev/ath/ath_hal/ar9300/ar9300.h
+++ b/sys/contrib/dev/ath/ath_hal/ar9300/ar9300.h
@@ -1411,7 +1411,7 @@ extern void ar9300_iq_calibration(struct ath_hal *ah, u_int8_t num_chains);
 extern void ar9300_temp_comp_cal_collect(struct ath_hal *ah);
 extern void ar9300_temp_comp_calibration(struct ath_hal *ah, u_int8_t num_chains);
 extern int16_t ar9300_get_min_cca_pwr(struct ath_hal *ah);
-extern void ar9300_upload_noise_floor(struct ath_hal *ah, int is2G, int16_t nfarray[]);
+extern void ar9300_upload_noise_floor(struct ath_hal *ah, int is2G, int16_t nfarray[HAL_NUM_NF_READINGS]);
 
 extern HAL_BOOL ar9300_set_tx_power_limit(struct ath_hal *ah, u_int32_t limit,
                                        u_int16_t extra_txpow, u_int16_t tpc_in_db);
diff --git a/sys/dev/ath/ath_hal/ar5212/ar5212.h b/sys/dev/ath/ath_hal/ar5212/ar5212.h
index 3a08c1911a1c..15cf98c1e07a 100644
--- a/sys/dev/ath/ath_hal/ar5212/ar5212.h
+++ b/sys/dev/ath/ath_hal/ar5212/ar5212.h
@@ -574,7 +574,7 @@ extern	HAL_BOOL ar5212ResetCalValid(struct ath_hal *ah,
 		const struct ieee80211_channel *);
 extern	int16_t ar5212GetNoiseFloor(struct ath_hal *ah);
 extern	void ar5212InitNfCalHistBuffer(struct ath_hal *);
-extern	int16_t ar5212GetNfHistMid(const int16_t calData[]);
+extern	int16_t ar5212GetNfHistMid(const int16_t calData[AR512_NF_CAL_HIST_MAX]);
 extern	void ar5212SetSpurMitigation(struct ath_hal *,
 		 const struct ieee80211_channel *);
 extern	HAL_BOOL ar5212SetAntennaSwitchInternal(struct ath_hal *ah,