netdev - [PATCH 2/2] bridge: avoid ethtool on non running interface

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Message-ID: <20100824161256.0a6079e7@nehalam>
Date:	Tue, 24 Aug 2010 16:12:56 -0700
From:	Stephen Hemminger <shemminger@...tta.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev@...r.kernel.org
Subject: [PATCH 2/2] bridge: avoid ethtool on non running interface

If bridge port is offline, don't call ethtool to query speed.

Signed-off-by: Stephen Hemminger <shemminger@...tta.com>

---
 net/bridge/br_if.c     |   23 ++++++++++++-----------
 net/bridge/br_notify.c |    9 +--------
 2 files changed, 13 insertions(+), 19 deletions(-)

--- a/net/bridge/br_if.c	2010-08-24 16:10:13.999318302 -0700
+++ b/net/bridge/br_if.c	2010-08-24 16:11:16.086598495 -0700
@@ -67,20 +67,21 @@ void br_port_carrier_check(struct net_br
 	struct net_device *dev = p->dev;
 	struct net_bridge *br = p->br;
 
-	if (netif_carrier_ok(dev))
+	if (netif_running(dev) && netif_carrier_ok(dev))
 		p->path_cost = port_cost(dev);
 
-	if (netif_running(br->dev)) {
-		spin_lock_bh(&br->lock);
-		if (netif_carrier_ok(dev)) {
-			if (p->state == BR_STATE_DISABLED)
-				br_stp_enable_port(p);
-		} else {
-			if (p->state != BR_STATE_DISABLED)
-				br_stp_disable_port(p);
-		}
-		spin_unlock_bh(&br->lock);
+	if (!netif_running(br->dev))
+		return;
+
+	spin_lock_bh(&br->lock);
+	if (netif_running(dev) && netif_carrier_ok(dev)) {
+		if (p->state == BR_STATE_DISABLED)
+			br_stp_enable_port(p);
+	} else {
+		if (p->state != BR_STATE_DISABLED)
+			br_stp_disable_port(p);
 	}
+	spin_unlock_bh(&br->lock);
 }
 
 static void release_nbp(struct kobject *kobj)
--
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