From: stephen hemminger <shemminger@vyatta.com>
Date: Tue, 24 Aug 2010 13:12:56 +0000 (+0000)
Subject: bridge: avoid ethtool on non running interface
X-Git-Tag: v3.12-rc1~8399^2~663
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=aa7c6e5fa08bb5014b6432a690d28748f11e93fc;p=kernel%2Fkernel-generic.git

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@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index 1707945..89ad25a 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -67,20 +67,21 @@ void br_port_carrier_check(struct net_bridge_port *p)
 	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)