From: John Crispin <john@openwrt.org>
Date: Fri, 1 Jan 2016 21:19:41 +0000 (+0000)
Subject: ledtrig-netdev: add support for renamed devices
X-Git-Tag: reboot~1035
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=df165974c32a6ad2499b815d9d9f72b250d622f8;p=openwrt%2Fopenwrt.git

ledtrig-netdev: add support for renamed devices

The ppp0 interface is renamed after the connection is established. Due
to a missing NETDEV_REGISTER event, the ledtrig-netdev isn't aware of
the renamed interface and literally ignores the device
(no tx/rx indication, led isn't switched off with 'ifdown wan').

Signed-off-by: Mathias Kresin <openwrt@kresin.me>

SVN-Revision: 48048
---

diff --git a/target/linux/generic/files/drivers/leds/ledtrig-netdev.c b/target/linux/generic/files/drivers/leds/ledtrig-netdev.c
index 4e0fd667b0..5d0f95499b 100644
--- a/target/linux/generic/files/drivers/leds/ledtrig-netdev.c
+++ b/target/linux/generic/files/drivers/leds/ledtrig-netdev.c
@@ -265,7 +265,7 @@ static int netdev_trig_notify(struct notifier_block *nb,
 	struct net_device *dev = netdev_notifier_info_to_dev((struct netdev_notifier_info *) dv);
 	struct led_netdev_data *trigger_data = container_of(nb, struct led_netdev_data, notifier);
 
-	if (evt != NETDEV_UP && evt != NETDEV_DOWN && evt != NETDEV_CHANGE && evt != NETDEV_REGISTER && evt != NETDEV_UNREGISTER)
+	if (evt != NETDEV_UP && evt != NETDEV_DOWN && evt != NETDEV_CHANGE && evt != NETDEV_REGISTER && evt != NETDEV_UNREGISTER && evt != NETDEV_CHANGENAME)
 		return NOTIFY_DONE;
 
 	spin_lock_bh(&trigger_data->lock);
@@ -274,9 +274,10 @@ static int netdev_trig_notify(struct notifier_block *nb,
 	if (strcmp(dev->name, trigger_data->device_name))
 		goto done;
 
-	if (evt == NETDEV_REGISTER) {
+	if (evt == NETDEV_REGISTER || evt == NETDEV_CHANGENAME) {
 		if (trigger_data->net_dev != NULL)
 			dev_put(trigger_data->net_dev);
+
 		dev_hold(dev);
 		trigger_data->net_dev = dev;
 		trigger_data->link_up = 0;