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* [PATCH 1/2] mwifiex: use correct htcapinfo for HT20 ibss network
@ 2013-01-03  0:56 Bing Zhao
  2013-01-03  0:56 ` [PATCH 2/2] mwifiex: parse WMM IEs from hostapd for mwifiex AP Bing Zhao
  0 siblings, 1 reply; 4+ messages in thread
From: Bing Zhao @ 2013-01-03  0:56 UTC (permalink / raw)
  To: linux-wireless
  Cc: John W. Linville, Amitkumar Karwar, Avinash Patil,
	Nishant Sarmukadam, Frank Huang, Bing Zhao

From: Amitkumar Karwar <akarwar@marvell.com>

It is observed that same htcapinfo ie is included in beacon for
HT20, HT40+ and HT40- ibss networks. This patch makes sure that
we will not advertise 40Mhz flags while creating/joining ibss
network in HT20 mode.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
---
 drivers/net/wireless/mwifiex/11n.c  |    4 +++-
 drivers/net/wireless/mwifiex/join.c |   10 ++++++++++
 2 files changed, 13 insertions(+), 1 deletions(-)

diff --git a/drivers/net/wireless/mwifiex/11n.c b/drivers/net/wireless/mwifiex/11n.c
index 245a371..9cd6216 100644
--- a/drivers/net/wireless/mwifiex/11n.c
+++ b/drivers/net/wireless/mwifiex/11n.c
@@ -53,7 +53,9 @@ mwifiex_fill_cap_info(struct mwifiex_private *priv, u8 radio_type,
 	       sizeof(sband->ht_cap.mcs));
 
 	if (priv->bss_mode == NL80211_IFTYPE_STATION ||
-	    sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)
+	    (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 &&
+	     (priv->adapter->sec_chan_offset !=
+					IEEE80211_HT_PARAM_CHA_SEC_NONE)))
 		/* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
 		SETHT_MCS32(ht_cap->ht_cap.mcs.rx_mask);
 
diff --git a/drivers/net/wireless/mwifiex/join.c b/drivers/net/wireless/mwifiex/join.c
index 88664ae..3c7cabe 100644
--- a/drivers/net/wireless/mwifiex/join.c
+++ b/drivers/net/wireless/mwifiex/join.c
@@ -969,6 +969,16 @@ mwifiex_cmd_802_11_ad_hoc_start(struct mwifiex_private *priv,
 					priv->adapter->config_bands);
 		mwifiex_fill_cap_info(priv, radio_type, ht_cap);
 
+		if (adapter->sec_chan_offset ==
+					IEEE80211_HT_PARAM_CHA_SEC_NONE) {
+			u16 tmp_ht_cap;
+
+			tmp_ht_cap = le16_to_cpu(ht_cap->ht_cap.cap_info);
+			tmp_ht_cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
+			tmp_ht_cap &= ~IEEE80211_HT_CAP_SGI_40;
+			ht_cap->ht_cap.cap_info = cpu_to_le16(tmp_ht_cap);
+		}
+
 		pos += sizeof(struct mwifiex_ie_types_htcap);
 		cmd_append_size += sizeof(struct mwifiex_ie_types_htcap);
 
-- 
1.7.0.2


^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2016-09-20 13:56 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-01-03  0:56 [PATCH 1/2] mwifiex: use correct htcapinfo for HT20 ibss network Bing Zhao
2013-01-03  0:56 ` [PATCH 2/2] mwifiex: parse WMM IEs from hostapd for mwifiex AP Bing Zhao
2016-09-14  9:54   ` Johannes Berg
2016-09-20 13:56     ` Amitkumar Karwar

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