From: Johannes Berg <johannes@sipsolutions.net>
Date: Fri, 2 Oct 2009 05:15:27 +0000 (+0000)
Subject: net: introduce NETDEV_POST_INIT notifier
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=v2.6.32-rc3-13-g7ffbe3f;p=linux-beck.git

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>
---

diff --git a/include/linux/notifier.h b/include/linux/notifier.h
index 44428d247dbe..29714b8441b1 100644
--- a/include/linux/notifier.h
+++ b/include/linux/notifier.h
@@ -201,6 +201,7 @@ static inline int notifier_to_errno(int ret)
 #define NETDEV_PRE_UP		0x000D
 #define NETDEV_BONDING_OLDTYPE  0x000E
 #define NETDEV_BONDING_NEWTYPE  0x000F
+#define NETDEV_POST_INIT	0x0010
 
 #define SYS_DOWN	0x0001	/* Notify of system down */
 #define SYS_RESTART	SYS_DOWN
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;