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authorVivek Natarajan <vnatarajan@atheros.com>2010-08-12 14:23:28 +0530
committerGreg Kroah-Hartman <gregkh@suse.de>2010-09-20 13:36:16 -0700
commitf8d958a95ec0f26ff05bdc75f24887203e701826 (patch)
tree21ccee5639662993a9628693b59dfd5336ec574d /drivers/net
parent58b29725e5bd74da734c6f3fd1eac934a8fed73e (diff)
downloadlwn-f8d958a95ec0f26ff05bdc75f24887203e701826.tar.gz
lwn-f8d958a95ec0f26ff05bdc75f24887203e701826.zip
ath9k_htc: Fix disconnect issue in HT40 mode.
commit 71ba186c123630ddab17667ec9ecf7e2ef211295 upstream. Some APs advertise that they may be HT40 capable in the capabilites but the current operating channel configuration may be only HT20. This causes disconnection as ath9k_htc sets WLAN_RC_40_FLAG despite the AP operating in HT20 mode. Hence set this flag only if the current channel configuration is HT40 enabled. Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/wireless/ath/ath9k/htc_drv_main.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index 9d371c18eb41..5f3c47d186d0 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -370,7 +370,8 @@ static int ath9k_htc_init_rate(struct ath9k_htc_priv *priv,
priv->tgt_rate.rates.ht_rates.rs_nrates = j;
caps = WLAN_RC_HT_FLAG;
- if (sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)
+ if ((sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) &&
+ (conf_is_ht40(&priv->hw->conf)))
caps |= WLAN_RC_40_FLAG;
if (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40)
caps |= WLAN_RC_SGI_FLAG;