Commit 1c9d5e41 authored by Stephen Hemminger's avatar Stephen Hemminger Committed by John W. Linville
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[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: default avatarStephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 899413de

drivers/net/wireless/ipw2200.c

+3 −2
Original line number Diff line number Diff line
@@ -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