Merge branch 'rtnetlink-cleanup-user-notifications'

David Ahern says:

====================
rtnetlink: Cleanup user notifications for netdev events

Vlad's recent patch to add the event type to rtnetlink notifications
points out a number of redundant or unnecessary notifications sent to
userspace for events that are essentially internal to the kernel. Trim
the list to put a dent in the notification storm.

v2
- rebased to top of net-next with IFLA_EVENT patch reverted
- dropped removal NETDEV_CHANGEINFODATA since it is intentionally
  only to send a message to userspace
- dropped NOTIFY_PEERS since Vlad's says it is needed for macvlans
- add patches to remove NETDEV_CHANGEUPPER and NETDEV_CHANGE_TX_QUEUE_LEN
  from the event list
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

net/core/rtnetlink.c

@@ -4117,21 +4117,12 @@ static int rtnetlink_event(struct notifier_block *this, unsigned long event, voi
 
 	switch (event) {
 	case NETDEV_REBOOT:
-	case NETDEV_CHANGEMTU:
-	case NETDEV_CHANGEADDR:
 	case NETDEV_CHANGENAME:
 	case NETDEV_FEAT_CHANGE:
 	case NETDEV_BONDING_FAILOVER:
-	case NETDEV_POST_TYPE_CHANGE:
 	case NETDEV_NOTIFY_PEERS:
-	case NETDEV_CHANGEUPPER:
 	case NETDEV_RESEND_IGMP:
-	case NETDEV_PRECHANGEMTU:
 	case NETDEV_CHANGEINFODATA:
-	case NETDEV_PRECHANGEUPPER:
-	case NETDEV_CHANGELOWERSTATE:
-	case NETDEV_UDP_TUNNEL_PUSH_INFO:
-	case NETDEV_CHANGE_TX_QUEUE_LEN:
 		rtmsg_ifinfo(RTM_NEWLINK, dev, 0, GFP_KERNEL);
 		break;
 	default: