From 6b3d348681a153b8e4a16ba1a6f792711e389a9e Mon Sep 17 00:00:00 2001
From: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Date: Sat, 13 Aug 2011 10:28:16 +0530
Subject: ath9k: Fix noisefloor history update for extn chains

Before doing hw reset the current channel's noisefloor readings
are updated into history buffer. The extension chain's readings
are considered only if the current channel was configured in HT40.
While moving from HT40 to HT20, the extn chain's readings are
skipped though the current channel is in ht40. This patch updates
extn chain reading based on channel flag.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/calib.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'drivers/net/wireless/ath/ath9k/calib.c')

diff --git a/drivers/net/wireless/ath/ath9k/calib.c b/drivers/net/wireless/ath/ath9k/calib.c
index ac2da3cce788..ebaf304f464b 100644
--- a/drivers/net/wireless/ath/ath9k/calib.c
+++ b/drivers/net/wireless/ath/ath9k/calib.c
@@ -82,7 +82,6 @@ static void ath9k_hw_update_nfcal_hist_buffer(struct ath_hw *ah,
 					      int16_t *nfarray)
 {
 	struct ath_common *common = ath9k_hw_common(ah);
-	struct ieee80211_conf *conf = &common->hw->conf;
 	struct ath_nf_limits *limit;
 	struct ath9k_nfcal_hist *h;
 	bool high_nf_mid = false;
@@ -94,7 +93,7 @@ static void ath9k_hw_update_nfcal_hist_buffer(struct ath_hw *ah,
 
 	for (i = 0; i < NUM_NF_READINGS; i++) {
 		if (!(chainmask & (1 << i)) ||
-		    ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf)))
+		    ((i >= AR5416_MAX_CHAINS) && !IS_CHAN_HT40(ah->curchan)))
 			continue;
 
 		h[i].nfCalBuffer[h[i].currIndex] = nfarray[i];
-- 
cgit v1.2.3