[PATCH] ipw2200: rf kill switch polling power saving

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>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/net/wireless/ipw2200.c b/drivers/net/wireless/ipw2200.c
index 7cb2052a55a5..aa32a97380ec 100644
--- a/drivers/net/wireless/ipw2200.c
+++ b/drivers/net/wireless/ipw2200.c
@@ -1751,7 +1751,7 @@ static int ipw_radio_kill_sw(struct ipw_priv *priv, int disable_radio)
                         /* 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 ipw_priv *priv,
                         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