linux-kernel - [PATCH 45/52] libertas: Remove carrier signaling from the scan code

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Date:	Thu, 14 Jan 2010 14:27:24 -0800
From:	Greg Kroah-Hartman <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org,
	stable-review@...nel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Holger Schurig <holgerschurig@...il.com>,
	"John W. Linville" <linville@...driver.com>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [PATCH 45/52] libertas: Remove carrier signaling from the scan code

From: Samuel Ortiz <sameo@...ux.intel.com>

commit 659c8e5243caf14564155ad8421404f044dd8031 upstream.

There is no reason to signal a carrier off when doing a 802.11 scan.

Cc: Holger Schurig <holgerschurig@...il.com>
Signed-off-by: Samuel Ortiz <sameo@...ux.intel.com>
Acked-by: Dan Williams <dcbw@...hat.com>
Signed-off-by: John W. Linville <linville@...driver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
 drivers/net/wireless/libertas/scan.c |   22 ++++++++--------------
 1 files changed, 8 insertions(+), 14 deletions(-)

diff --git a/drivers/net/wireless/libertas/scan.c b/drivers/net/wireless/libertas/scan.c
index 6c95af3..06d66a1 100644
--- a/drivers/net/wireless/libertas/scan.c
+++ b/drivers/net/wireless/libertas/scan.c
@@ -399,11 +399,8 @@ int lbs_scan_networks(struct lbs_private *priv, int full_scan)
 	chan_count = lbs_scan_create_channel_list(priv, chan_list);
 
 	netif_stop_queue(priv->dev);
-	netif_carrier_off(priv->dev);
-	if (priv->mesh_dev) {
+	if (priv->mesh_dev)
 		netif_stop_queue(priv->mesh_dev);
-		netif_carrier_off(priv->mesh_dev);
-	}
 
 	/* Prepare to continue an interrupted scan */
 	lbs_deb_scan("chan_count %d, scan_channel %d\n",
@@ -467,16 +464,13 @@ out2:
 	priv->scan_channel = 0;
 
 out:
-	if (priv->connect_status == LBS_CONNECTED) {
-		netif_carrier_on(priv->dev);
-		if (!priv->tx_pending_len)
-			netif_wake_queue(priv->dev);
-	}
-	if (priv->mesh_dev && (priv->mesh_connect_status == LBS_CONNECTED)) {
-		netif_carrier_on(priv->mesh_dev);
-		if (!priv->tx_pending_len)
-			netif_wake_queue(priv->mesh_dev);
-	}
+	if (priv->connect_status == LBS_CONNECTED && !priv->tx_pending_len)
+		netif_wake_queue(priv->dev);
+
+	if (priv->mesh_dev && (priv->mesh_connect_status == LBS_CONNECTED) &&
+	    !priv->tx_pending_len)
+		netif_wake_queue(priv->mesh_dev);
+
 	kfree(chan_list);
 
 	lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
-- 
1.6.6

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