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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>

Backport of r48048

git-svn-id: svn://svn.openwrt.org/openwrt/branches/chaos_calmer@48073 3c298f89-4303-0410-b956-a3cf2f4a3e73
master
Rafał Miłecki 2016-01-02 22:15:31 +00:00
parent c72f3c7574
commit 14b19c7d40
1 changed files with 3 additions and 2 deletions
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5
target/linux/generic/files/drivers/leds/ledtrig-netdev.c
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@ -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;