From be4fd8e5d9f5cd3fdc368e32e7957bcb83bcbb8b Mon Sep 17 00:00:00 2001 From: Alexander Aring Date: Wed, 12 Nov 2014 03:36:53 +0100 Subject: mac802154: add ifname change notifier This patch adds a netdev notifier for interface renaming. We have a name attribute inside of subif data struct. This is needed to have always the actual netdev name in sdata name attribute. Signed-off-by: Alexander Aring Signed-off-by: Marcel Holtmann --- net/mac802154/iface.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) (limited to 'net/mac802154/iface.c') diff --git a/net/mac802154/iface.c b/net/mac802154/iface.c index 85d215562b4a..ec92b48d1b0b 100644 --- a/net/mac802154/iface.c +++ b/net/mac802154/iface.c @@ -548,3 +548,38 @@ void ieee802154_remove_interfaces(struct ieee802154_local *local) } mutex_unlock(&local->iflist_mtx); } + +static int netdev_notify(struct notifier_block *nb, + unsigned long state, void *ptr) +{ + struct net_device *dev = netdev_notifier_info_to_dev(ptr); + struct ieee802154_sub_if_data *sdata; + + if (state != NETDEV_CHANGENAME) + return NOTIFY_DONE; + + if (!dev->ieee802154_ptr || !dev->ieee802154_ptr->wpan_phy) + return NOTIFY_DONE; + + if (dev->ieee802154_ptr->wpan_phy->privid != mac802154_wpan_phy_privid) + return NOTIFY_DONE; + + sdata = IEEE802154_DEV_TO_SUB_IF(dev); + memcpy(sdata->name, dev->name, IFNAMSIZ); + + return NOTIFY_OK; +} + +static struct notifier_block mac802154_netdev_notifier = { + .notifier_call = netdev_notify, +}; + +int ieee802154_iface_init(void) +{ + return register_netdevice_notifier(&mac802154_netdev_notifier); +} + +void ieee802154_iface_exit(void) +{ + unregister_netdevice_notifier(&mac802154_netdev_notifier); +} -- cgit v1.2.3