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[net-next,2/3] net: pass changed flags along with NETDEV_CHANGE event

Message ID 1369728655-26649-3-git-send-email-jiri@resnulli.us
State Changes Requested, archived
Headers show

Commit Message

Jiri Pirko May 28, 2013, 8:10 a.m. UTC 
Use new netdevice notifier infrastructure to pass along changed flags.

Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
---
 include/linux/netdevice.h | 5 +++++
 net/core/dev.c            | 9 +++++++--
 2 files changed, 12 insertions(+), 2 deletions(-)
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Patch

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 153127b..38dae4f 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1602,6 +1602,11 @@  struct netdevice_notifier_info {
 	struct net_device *dev;
 };
 
+struct netdevice_notifier_change_info {
+	struct netdevice_notifier_info info; /* must be first */
+	unsigned int flags_changed;
+};
+
 static inline struct net_device *
 get_netdevice_notifier_info_dev(const struct netdevice_notifier_info *info)
 {
diff --git a/net/core/dev.c b/net/core/dev.c
index 9a891e0..77f1653 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4778,8 +4778,13 @@  void __dev_notify_flags(struct net_device *dev, unsigned int old_flags)
 	}
 
 	if (dev->flags & IFF_UP &&
-	    (changes & ~(IFF_UP | IFF_PROMISC | IFF_ALLMULTI | IFF_VOLATILE)))
-		call_netdevice_notifiers(NETDEV_CHANGE, dev);
+	    (changes & ~(IFF_UP | IFF_PROMISC | IFF_ALLMULTI | IFF_VOLATILE))) {
+		struct netdevice_notifier_change_info change_info;
+
+		change_info.flags_changed = changes;
+		call_netdevice_notifiers_info(NETDEV_CHANGE, dev,
+					      &change_info.info);
+	}
 }
 
 /**