From 6670f15b1f6858a43b292d8ab64464e9f085a6aa Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Thu, 9 Feb 2012 18:32:22 -0800
Subject: [PATCH] mwifiex: clear previous security setting during association

Driver maintains different flags for WEP, WPA, WPA2 security modes.
Appropriate flag is set using security information provided in
connect request. mwifiex_is_network_compatible() routine uses them
to check if driver's setting is compatible with AP. Association is
aborted if the routine fails.

For some corner cases, it is observed that association is failed
even for valid security information based on association history.
This patch fixes the problem by clearing previous security setting
during each association.

We should set WEP key provided in connect request as default tx key.
This missing change is also added here.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/mwifiex/cfg80211.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index c3b6c46..5b2972b 100644
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -841,7 +841,12 @@ mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
 		ret = mwifiex_set_rf_channel(priv, channel,
 						priv->adapter->channel_type);
 
-	ret = mwifiex_set_encode(priv, NULL, 0, 0, 1);	/* Disable keys */
+	/* As this is new association, clear locally stored
+	 * keys and security related flags */
+	priv->sec_info.wpa_enabled = false;
+	priv->sec_info.wpa2_enabled = false;
+	priv->wep_key_curr_index = 0;
+	ret = mwifiex_set_encode(priv, NULL, 0, 0, 1);
 
 	if (mode == NL80211_IFTYPE_ADHOC) {
 		/* "privacy" is set only for ad-hoc mode */
@@ -886,6 +891,7 @@ mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
 			dev_dbg(priv->adapter->dev,
 				"info: setting wep encryption"
 				" with key len %d\n", sme->key_len);
+			priv->wep_key_curr_index = sme->key_idx;
 			ret = mwifiex_set_encode(priv, sme->key, sme->key_len,
 							sme->key_idx, 0);
 		}
-- 
1.7.4.4