linux-kernel - [PATCH] staging: hv: remove the carrier status check from netvsc

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Date:	Wed, 28 Sep 2011 13:24:15 -0700
From:	Haiyang Zhang <haiyangz@...rosoft.com>
To:	haiyangz@...rosoft.com, kys@...rosoft.com, gregkh@...e.de,
	linux-kernel@...r.kernel.org, devel@...uxdriverproject.org,
	virtualization@...ts.osdl.org
Subject: [PATCH] staging: hv: remove the carrier status check from netvsc_open()

Checking carrier status in netvsc_open() is not necessary.

Signed-off-by: Haiyang Zhang <haiyangz@...rosoft.com>
Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>

---
 drivers/staging/hv/TODO         |    2 --
 drivers/staging/hv/netvsc_drv.c |   19 +++++++------------
 2 files changed, 7 insertions(+), 14 deletions(-)

diff --git a/drivers/staging/hv/TODO b/drivers/staging/hv/TODO
index fcc57c2..ed4d636 100644
--- a/drivers/staging/hv/TODO
+++ b/drivers/staging/hv/TODO
@@ -1,7 +1,5 @@
 TODO:
 	- audit the network driver
-	  - checking for carrier inside open is wrong, network device API
-            confusion??
 	- audit the scsi driver
 
 Please send patches for this code to Greg Kroah-Hartman <gregkh@...e.de>,
diff --git a/drivers/staging/hv/netvsc_drv.c b/drivers/staging/hv/netvsc_drv.c
index 69c233e..561ba58 100644
--- a/drivers/staging/hv/netvsc_drv.c
+++ b/drivers/staging/hv/netvsc_drv.c
@@ -69,20 +69,15 @@ static int netvsc_open(struct net_device *net)
 	struct hv_device *device_obj = net_device_ctx->device_ctx;
 	int ret = 0;
 
-	if (netif_carrier_ok(net)) {
-		/* Open up the device */
-		ret = rndis_filter_open(device_obj);
-		if (ret != 0) {
-			netdev_err(net, "unable to open device (ret %d).\n",
-				   ret);
-			return ret;
-		}
-
-		netif_start_queue(net);
-	} else {
-		netdev_err(net, "unable to open device...link is down.\n");
+	/* Open up the device */
+	ret = rndis_filter_open(device_obj);
+	if (ret != 0) {
+		netdev_err(net, "unable to open device (ret %d).\n", ret);
+		return ret;
 	}
 
+	netif_start_queue(net);
+
 	return ret;
 }
 
-- 
1.6.3.2

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