bool ath9k_hw_reset_calvalid(struct ath_hw *ah);
void ath9k_hw_start_nfcal(struct ath_hw *ah, bool update);
-void ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan);
+int ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan);
bool ath9k_hw_getnf(struct ath_hw *ah, struct ath9k_channel *chan);
void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah,
struct ath9k_channel *chan);