[PATCH] iwl3945: cancel scan on rxon command

This patch fixes the following for 3945:
1. Make sure we cancel scan if RXON command is called.
2. Call scan abort on scan watchdog.
Signed-off-by: Mohamed Abbas <mabbas@linux.intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/iwl3945-base.c

@@ -6478,8 +6478,9 @@ static void iwl_bg_scan_check(struct work_struct *data)
 		IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN,
 			  "Scan completion watchdog resetting adapter (%dms)\n",
 			  jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG));
+
 		if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
-			queue_work(priv->workqueue, &priv->restart);
+			iwl_send_scan_abort(priv);
 	}
 	mutex_unlock(&priv->mutex);
 }
@@ -6575,7 +6576,7 @@ static void iwl_bg_request_scan(struct work_struct *data)
 		spin_unlock_irqrestore(&priv->lock, flags);
 
 		scan->suspend_time = 0;
-		scan->max_out_time = cpu_to_le32(600 * 1024);
+		scan->max_out_time = cpu_to_le32(200 * 1024);
 		if (!interval)
 			interval = suspend_time;
 		/*
@@ -6744,6 +6745,8 @@ static void iwl_bg_post_associate(struct work_struct *data)
 
 	mutex_lock(&priv->mutex);
 
+	iwl_scan_cancel_timeout(priv, 200);
+
 	conf = ieee80211_get_hw_conf(priv->hw);
 
 	priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
@@ -7169,8 +7172,6 @@ static int iwl_mac_config_interface(struct ieee80211_hw *hw, int if_id,
 		if (priv->iw_mode == IEEE80211_IF_TYPE_AP)
 			iwl_config_ap(priv);
 		else {
-			priv->staging_rxon.filter_flags |=
-						RXON_FILTER_ASSOC_MSK;
 			rc = iwl_commit_rxon(priv);
 			if ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && rc)
 				iwl_add_station(priv,
@@ -7178,6 +7179,7 @@ static int iwl_mac_config_interface(struct ieee80211_hw *hw, int if_id,
 		}
 
 	} else {
+		iwl_scan_cancel_timeout(priv, 100);
 		priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
 		iwl_commit_rxon(priv);
 	}
@@ -7238,6 +7240,7 @@ static int iwl_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len)
 
 	IWL_DEBUG_MAC80211("enter\n");
 
+	mutex_lock(&priv->mutex);
 	spin_lock_irqsave(&priv->lock, flags);
 
 	if (!iwl_is_ready_rf(priv)) {
@@ -7276,6 +7279,7 @@ static int iwl_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len)
 
 out_unlock:
 	spin_unlock_irqrestore(&priv->lock, flags);
+	mutex_unlock(&priv->mutex);
 
 	return rc;
 }
@@ -7310,6 +7314,8 @@ static int iwl_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 
 	mutex_lock(&priv->mutex);
 
+	iwl_scan_cancel_timeout(priv, 100);
+
 	switch (cmd) {
 	case  SET_KEY:
 		rc = iwl_update_sta_key_info(priv, key, sta_id);
@@ -7479,8 +7485,18 @@ static void iwl_mac_reset_tsf(struct ieee80211_hw *hw)
 
 	spin_unlock_irqrestore(&priv->lock, flags);
 
+	/* we are restarting association process
+	 * clear RXON_FILTER_ASSOC_MSK bit
+	*/
+	if (priv->iw_mode != IEEE80211_IF_TYPE_AP) {
+		iwl_scan_cancel_timeout(priv, 100);
+		priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+		iwl_commit_rxon(priv);
+	}
+
 	/* Per mac80211.h: This is only used in IBSS mode... */
 	if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) {
+
 		IWL_DEBUG_MAC80211("leave - not in IBSS\n");
 		mutex_unlock(&priv->mutex);
 		return;