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From: Miaoqing Pan <miaoqing@codeaurora.org>
Date: Fri, 15 Jan 2016 18:17:17 +0800
Subject: [PATCH] ath9k: avoid ANI restart if no trigger

Fixes commit 54da20d83f0e ("ath9k_hw: improve ANI processing and rx desensitizing parameters")

Call ath9k_ani_restart() only when the phy error rate reach the
ANI immunity threshold. Sync the logic with internal code base.

Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org>
---

--- a/drivers/net/wireless/ath/ath9k/ani.c
+++ b/drivers/net/wireless/ath/ath9k/ani.c
@@ -444,14 +444,16 @@ void ath9k_hw_ani_monitor(struct ath_hw
 		    ofdmPhyErrRate < ah->config.ofdm_trig_low) {
 			ath9k_hw_ani_lower_immunity(ah);
 			aniState->ofdmsTurn = !aniState->ofdmsTurn;
+			ath9k_ani_restart(ah);
 		} else if (ofdmPhyErrRate > ah->config.ofdm_trig_high) {
 			ath9k_hw_ani_ofdm_err_trigger(ah);
 			aniState->ofdmsTurn = false;
+			ath9k_ani_restart(ah);
 		} else if (cckPhyErrRate > ah->config.cck_trig_high) {
 			ath9k_hw_ani_cck_err_trigger(ah);
 			aniState->ofdmsTurn = true;
+			ath9k_ani_restart(ah);
 		}
-		ath9k_ani_restart(ah);
 	}
 }
 EXPORT_SYMBOL(ath9k_hw_ani_monitor);