net: rtnetlink: ignore NETDEV_PRE_TYPE_CHANGE in rtnetlink_event()
Ignore the new NETDEV_PRE_TYPE_CHANGE event in rtnetlink_event() since
there have been no changes userspace needs to be notified of.
Also add a comment to the netdev notifier event definitions to remind
people to update the exclusion list when adding new event types.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/notifier.h b/include/linux/notifier.h
index f3635fc..9c5d3fa 100644
--- a/include/linux/notifier.h
+++ b/include/linux/notifier.h
@@ -182,7 +182,10 @@
* VC switch chains (for loadable kernel svgalib VC switch helpers) etc...
*/
-/* netdevice notifier chain */
+/* netdevice notifier chain. Please remember to update the rtnetlink
+ * notification exclusion list in rtnetlink_event() when adding new
+ * types.
+ */
#define NETDEV_UP 0x0001 /* For now you can't veto a device up/down */
#define NETDEV_DOWN 0x0002
#define NETDEV_REBOOT 0x0003 /* Tell a protocol stack a network interface
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index e1121f0..ffc6cf3 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1513,6 +1513,7 @@
case NETDEV_POST_INIT:
case NETDEV_REGISTER:
case NETDEV_CHANGE:
+ case NETDEV_PRE_TYPE_CHANGE:
case NETDEV_GOING_DOWN:
case NETDEV_UNREGISTER:
case NETDEV_UNREGISTER_BATCH: