ipw2x00: age scan results on resume

index 823c2bf..abf897d 100644
@@ -1692,7 +1692,13 @@ static int ipw2100_up(struct ipw2100_priv *priv, int deferred)
 	u32 lock;
 	u32 ord_len = sizeof(lock);
 
-	/* Quite if manually disabled. */
+	/* Age scan list entries found before suspend */
+	if (priv->suspend_time) {
+		ieee80211_networks_age(priv->ieee, priv->suspend_time);
+		priv->suspend_time = 0;
+	}
+
+	/* Quiet if manually disabled. */
 	if (priv->status & STATUS_RF_KILL_SW) {
 		IPW_DEBUG_INFO("%s: Radio is disabled by Manual Disable "
 			       "switch\n", priv->net_dev->name);

@@ -6414,6 +6420,9 @@ static int ipw2100_suspend(struct pci_dev *pci_dev, pm_message_t state)
 	pci_disable_device(pci_dev);
 	pci_set_power_state(pci_dev, PCI_D3hot);
 
+	if (!priv->suspend_at)
+		priv->suspend_at = get_seconds();
+
 	mutex_unlock(&priv->action_mutex);
 
 	return 0;

@@ -6457,6 +6466,8 @@ static int ipw2100_resume(struct pci_dev *pci_dev)
 	 * the queue of needed */
 	netif_device_attach(dev);
 
+	priv->suspend_time = get_seconds() - priv->suspend_at;
+
 	/* Bring the device back up */
 	if (!(priv->status & STATUS_RF_KILL_SW))
 		ipw2100_up(priv, 0);

index bbf1ddc..430534b 100644
@@ -591,6 +591,10 @@ struct ipw2100_priv {
 
 	int user_requested_scan;
 
+	/* Track time in suspend */
+	unsigned long suspend_at;
+	unsigned long suspend_time;
+
 	u32 interrupts;
 	int tx_interrupts;
 	int rx_interrupts;

index 0420d3d..74e2ea3 100644
@@ -11224,6 +11224,12 @@ static int ipw_up(struct ipw_priv *priv)
 {
 	int rc, i, j;
 
+	/* Age scan list entries found before suspend */
+	if (priv->suspend_time) {
+		ieee80211_networks_age(priv->ieee, priv->suspend_time);
+		priv->suspend_time = 0;
+	}
+
 	if (priv->status & STATUS_EXIT_PENDING)
 		return -EIO;
 

@@ -11824,6 +11830,9 @@ static int ipw_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 	pci_disable_device(pdev);
 	pci_set_power_state(pdev, pci_choose_state(pdev, state));
 
+	if (!priv->suspend_at)
+		priv->suspend_at = get_seconds();
+
 	return 0;
 }
 

@@ -11859,6 +11868,8 @@ static int ipw_pci_resume(struct pci_dev *pdev)
 	 * the queue of needed */
 	netif_device_attach(dev);
 
+	priv->suspend_time = get_seconds() - priv->suspend_at;
+
 	/* Bring the device back up */
 	queue_work(priv->workqueue, &priv->up);
 

index 277b274..7d88c75 100644
@@ -1346,6 +1346,10 @@ struct ipw_priv {
 
 	s8 tx_power;
 
+	/* Track time in suspend */
+	unsigned long suspend_at;
+	unsigned long suspend_time;
+
 #ifdef CONFIG_PM
 	u32 pm_state[16];
 #endif

index a2f5616..da27d40 100644
@@ -105,6 +105,23 @@ static inline void ieee80211_networks_free(struct ieee80211_device *ieee)
 	ieee->networks = NULL;
 }
 
+void ieee80211_networks_age(struct ieee80211_device *ieee,
+                            unsigned long age_secs)
+{
+	struct list_head *element, *safe;
+	struct ieee80211_network *network = NULL;
+	unsigned long flags;
+	unsigned long age_jiffies = msecs_to_jiffies(age_secs * MSEC_PER_SEC);
+
+	spin_lock_irqsave(&ieee->lock, flags);
+	list_for_each_safe(element, safe, &ieee->network_list) {
+		network = list_entry(element, struct ieee80211_network, list);
+		network->last_scanned += age_jiffies;
+	}
+	spin_unlock_irqrestore(&ieee->lock, flags);
+}
+EXPORT_SYMBOL(ieee80211_networks_age);
+
 static void ieee80211_networks_initialize(struct ieee80211_device *ieee)
 {
 	int i;

index adb7cf3..7515fad 100644
@@ -1119,6 +1119,9 @@ static inline int ieee80211_is_cck_rate(u8 rate)
 extern void free_ieee80211(struct net_device *dev);
 extern struct net_device *alloc_ieee80211(int sizeof_priv);
 
+extern void ieee80211_networks_age(struct ieee80211_device *ieee,
+				   unsigned long age_secs);
+
 extern int ieee80211_set_encryption(struct ieee80211_device *ieee);
 
 /* ieee80211_tx.c */