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Date:	Fri, 14 Sep 2007 16:40:20 -0700
From:	Jay Vosburgh <>
	Moni Shoua <>
Subject: [PATCH 01/11] IB/ipoib: Export call to call_netdevice_notifiers and add new private flag

From: Moni Shoua <>

Export the call to raw_notifier_call_chain so modules can send notifications
on netdev events to the netdev_chain.
Add IFF_SLAVE_DETACH to the list of priv_flags for net_device.
This flag is set by a slave that is about to unregisster from the kernel.

Both changes are used in bonding slaves that wish to inform the bonding master
about coming detachment.

Signed-off-by: Moni Shoua <>
Acked-by: Jay Vosburgh <>
 include/linux/if.h |    1 +
 net/core/dev.c     |    1 +
 2 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/include/linux/if.h b/include/linux/if.h
index 32bf419..b302b22 100644
--- a/include/linux/if.h
+++ b/include/linux/if.h
@@ -61,6 +61,7 @@
 #define IFF_MASTER_ALB	0x10		/* bonding master, balance-alb.	*/
 #define IFF_BONDING	0x20		/* bonding master or slave	*/
 #define IFF_SLAVE_NEEDARP 0x40		/* need ARPs for validation	*/
+#define IFF_SLAVE_DETACH 0x80		/* slave is about to unregister */
 #define IF_GET_IFACE	0x0001		/* for querying only */
 #define IF_GET_PROTO	0x0002
diff --git a/net/core/dev.c b/net/core/dev.c
index a76021c..5322add 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1148,6 +1148,7 @@ int call_netdevice_notifiers(unsigned long val, void *v)
 	return raw_notifier_call_chain(&netdev_chain, val, v);
 /* When > 0 there are consumers of rx skb time stamps */
 static atomic_t netstamp_needed = ATOMIC_INIT(0);

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