[PATCH net-next 4/8] rtnetlink: Do not generate notifications for POST_TYPE_CHANGE event

[David Ahern]

Changing the master device for a link generates many messages; the one
generated for POST_TYPE_CHANGE is redundant:

[LINK]11: dummy1: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue master 
br1 state UNKNOWN group default event POST_TYPE_CHANGE
    link/ether 02:02:02:02:02:03 brd ff:ff:ff:ff:ff:ff
[LINK]11: dummy1: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue master 
br1 state UNKNOWN group default
    link/ether 02:02:02:02:02:03 brd ff:ff:ff:ff:ff:ff

Remove POST_TYPE_CHANGE from the list of notifiers that generate
notifications.

Signed-off-by: David Ahern <d...@cumulusnetworks.com>
---
 include/uapi/linux/if_link.h | 1 -
 net/core/rtnetlink.c         | 4 ----
 2 files changed, 5 deletions(-)

diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index df5ade1bc684..80f3574a4630 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -906,7 +906,6 @@ enum {
        IFLA_EVENT_CHANGE_NAME,
        IFLA_EVENT_FEAT_CHANGE,
        IFLA_EVENT_BONDING_FAILOVER,
-       IFLA_EVENT_POST_TYPE_CHANGE,
        IFLA_EVENT_NOTIFY_PEERS,
        IFLA_EVENT_CHANGE_UPPER,
        IFLA_EVENT_RESEND_IGMP,
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 1503138ebfe1..739b06ac3e7f 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1294,9 +1294,6 @@ static int rtnl_fill_link_event(struct sk_buff *skb, 
unsigned long event)
        case NETDEV_BONDING_FAILOVER:
                rtnl_event = IFLA_EVENT_BONDING_FAILOVER;
                break;
-       case NETDEV_POST_TYPE_CHANGE:
-               rtnl_event = IFLA_EVENT_POST_TYPE_CHANGE;
-               break;
        case NETDEV_NOTIFY_PEERS:
                rtnl_event = IFLA_EVENT_NOTIFY_PEERS;
                break;
@@ -4182,7 +4179,6 @@ static int rtnetlink_event(struct notifier_block *this, 
unsigned long event, voi
        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:
-- 
2.1.4