[PATCH 1/1] dev_change_net_namespace: send a KOBJ_REMOVED to original netns

[Serge Hallyn]

Signed-off-by: Serge Hallyn <serge.hallyn at canonical.com>
---
 net/core/dev.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/core/dev.c b/net/core/dev.c
index e2215ee..8062a5a 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -6172,6 +6172,10 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char
 	dev_uc_flush(dev);
 	dev_mc_flush(dev);
 
+	/* Send a netdev-removed uevent to the old namespace */
+#ifdef CONFIG_HOTPLUG
+	kobject_uevent(&dev->dev.kobj, KOBJ_REMOVE);
+#endif
 	/* Actually switch the network namespace */
 	dev_net_set(dev, net);
 
-- 
1.7.9.5