From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Tue, 4 Jun 2013 10:11:30 +0000 (+0530)
Subject: ath9k: Fix OFDM weak signal detection for AP mode
X-Git-Tag: v3.11-rc1~64^2~166^2^2~117
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=80b4205b;p=~emulex%2Finfiniband.git

ath9k: Fix OFDM weak signal detection for AP mode

The commit "ath9k_hw: improve ANI processing and rx desensitizing parameters"
changed the OFDM weak signal detection logic to disable it
for AP mode, which is not allowed. Fix this and enable it always
for AP mode.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/ath/ath9k/ani.c b/drivers/net/wireless/ath/ath9k/ani.c
index e91725bf401..3ec4c5388c2 100644
--- a/drivers/net/wireless/ath/ath9k/ani.c
+++ b/drivers/net/wireless/ath/ath9k/ani.c
@@ -177,10 +177,15 @@ static void ath9k_hw_set_ofdm_nil(struct ath_hw *ah, u8 immunityLevel,
 	    BEACON_RSSI(ah) <= ATH9K_ANI_RSSI_THR_HIGH)
 		weak_sig = true;
 
-	if (aniState->ofdmWeakSigDetect != weak_sig)
-			ath9k_hw_ani_control(ah,
-				ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION,
-				entry_ofdm->ofdm_weak_signal_on);
+	/*
+	 * OFDM Weak signal detection is always enabled for AP mode.
+	 */
+	if (ah->opmode != NL80211_IFTYPE_AP &&
+	    aniState->ofdmWeakSigDetect != weak_sig) {
+		ath9k_hw_ani_control(ah,
+				     ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION,
+				     entry_ofdm->ofdm_weak_signal_on);
+	}
 
 	if (aniState->ofdmNoiseImmunityLevel >= ATH9K_ANI_OFDM_DEF_LEVEL) {
 		ah->config.ofdm_trig_high = ATH9K_ANI_OFDM_TRIG_HIGH;