From: Amerigo Wang <amwang@redhat.com>
Date: Fri, 10 Aug 2012 01:24:43 +0000 (+0000)
Subject: bridge: add some comments for NETDEV_RELEASE
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=d30362c0712eb567334b3b66de7c40d4372f2c6f;p=sagit-ice-cold%2Fkernel_xiaomi_msm8998.git

bridge: add some comments for NETDEV_RELEASE

Add comments on why we don't notify NETDEV_RELEASE.

Cc: David Miller <davem@davemloft.net>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Cong Wang <amwang@redhat.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 171fd6b9bfe6..1c8fdc3558cd 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -427,6 +427,10 @@ int br_del_if(struct net_bridge *br, struct net_device *dev)
 	if (!p || p->br != br)
 		return -EINVAL;
 
+	/* Since more than one interface can be attached to a bridge,
+	 * there still maybe an alternate path for netconsole to use;
+	 * therefore there is no reason for a NETDEV_RELEASE event.
+	 */
 	del_nbp(p);
 
 	spin_lock_bh(&br->lock);