net: pass changed flags along with NETDEV_CHANGE event
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>
v2->v3: shortened notifier_info struct name
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 13a3484..8502718 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1604,6 +1604,11 @@
struct net_device *dev;
};
+struct netdev_notifier_change_info {
+ struct netdev_notifier_info info; /* must be first */
+ unsigned int flags_changed;
+};
+
static inline struct net_device *
netdev_notifier_info_to_dev(const struct netdev_notifier_info *info)
{
diff --git a/net/core/dev.c b/net/core/dev.c
index 54fce60..6eb621c 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4771,8 +4771,13 @@
}
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 netdev_notifier_change_info change_info;
+
+ change_info.flags_changed = changes;
+ call_netdevice_notifiers_info(NETDEV_CHANGE, dev,
+ &change_info.info);
+ }
}
/**