[PATCH] ipw2100: RF kill switch timer power save

Similar patch to ipw2200. Round the timer used for RF kill
switch off to 1 second boundary to save power.
Build tested only, don't have this hardware.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ipw2100.c

@@ -1768,7 +1768,8 @@ static int ipw2100_up(struct ipw2100_priv *priv, int deferred)
 
 		if (priv->stop_rf_kill) {
 			priv->stop_rf_kill = 0;
-			queue_delayed_work(priv->workqueue, &priv->rf_kill, HZ);
+			queue_delayed_work(priv->workqueue, &priv->rf_kill,
+					   round_jiffies(HZ));
 		}
 
 		deferred = 1;
@@ -2098,7 +2099,7 @@ static void isr_indicate_rf_kill(struct ipw2100_priv *priv, u32 status)
 	/* Make sure the RF Kill check timer is running */
 	priv->stop_rf_kill = 0;
 	cancel_delayed_work(&priv->rf_kill);
-	queue_delayed_work(priv->workqueue, &priv->rf_kill, HZ);
+	queue_delayed_work(priv->workqueue, &priv->rf_kill, round_jiffies(HZ));
 }
 
 static void isr_scan_complete(struct ipw2100_priv *priv, u32 status)
@@ -4233,7 +4234,8 @@ static int ipw_radio_kill_sw(struct ipw2100_priv *priv, int disable_radio)
 			/* Make sure the RF_KILL check timer is running */
 			priv->stop_rf_kill = 0;
 			cancel_delayed_work(&priv->rf_kill);
-			queue_delayed_work(priv->workqueue, &priv->rf_kill, HZ);
+			queue_delayed_work(priv->workqueue, &priv->rf_kill,
+					   round_jiffies(HZ));
 		} else
 			schedule_reset(priv);
 	}
@@ -5969,7 +5971,8 @@ static void ipw2100_rf_kill(struct work_struct *work)
 	if (rf_kill_active(priv)) {
 		IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n");
 		if (!priv->stop_rf_kill)
-			queue_delayed_work(priv->workqueue, &priv->rf_kill, HZ);
+			queue_delayed_work(priv->workqueue, &priv->rf_kill,
+					   round_jiffies(HZ));
 		goto exit_unlock;
 	}