[PATCH] ipw2200: rf kill switch polling power saving

[PATCH] ipw2200: rf kill switch polling power saving

[Stephen Hemminger]

Make the ipw2200 driver polling of rf kill switch occur on second boundaries to reduce
power. Making all the wakeup's in the system occur together reduces power, and keeps
CPU in idle longer.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>

--- a/drivers/net/wireless/ipw2200.c	2007-06-22 09:11:41.000000000 -0700
+++ b/drivers/net/wireless/ipw2200.c	2007-06-22 09:16:24.000000000 -0700
@@ -1751,7 +1751,7 @@ static int ipw_radio_kill_sw(struct ipw_
 			/* Make sure the RF_KILL check timer is running */
 			cancel_delayed_work(&priv->rf_kill);
 			queue_delayed_work(priv->workqueue, &priv->rf_kill,
-					   2 * HZ);
+					   round_jiffies(2 * HZ));
 		} else
 			queue_work(priv->workqueue, &priv->up);
 	}
@@ -4690,7 +4690,8 @@ static void ipw_rx_notification(struct i
 			else if (priv->config & CFG_BACKGROUND_SCAN
 				 && priv->status & STATUS_ASSOCIATED)
 				queue_delayed_work(priv->workqueue,
-						   &priv->request_scan, HZ);
+						   &priv->request_scan,
+						   round_jiffies(HZ));
 
 			/* Send an empty event to user space.
 			 * We don't send the received data on the event because