net: introduce NETDEV_POST_INIT notifier

For various purposes including a wireless extensions
bugfix, we need to hook into the netdev creation before
before netdev_register_kobject(). This will also ease
doing the dev type assignment that Marcel was working
on for cfg80211 drivers w/o touching them all.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 0 deletions

diff --git a/net/core/dev.c b/net/core/dev.c
index b8f74cfb1bfd..a74c8fd69556 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4836,6 +4836,12 @@ int register_netdevice(struct net_device *dev)
                 dev->features |= NETIF_F_GSO;
 
         netdev_initialize_kobject(dev);
+
+        ret = call_netdevice_notifiers(NETDEV_POST_INIT, dev);
+        ret = notifier_to_errno(ret);
+        if (ret)
+                goto err_uninit;
+
         ret = netdev_register_kobject(dev);
         if (ret)
                 goto err_uninit;