rtnetlink: ignore NETDEV_RELEASE and NETDEV_JOIN event

These two events are not expected to be caught by userspace.

Signed-off-by: WANG Cong <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index d2ba2597c75a4c6d93c60c56fa13c6be938dde13..d1644e317e70cd2634e92fb5a61153ec18c74882 100644 (file)
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1956,6 +1956,8 @@ static int rtnetlink_event(struct notifier_block *this, unsigned long event, voi
        case NETDEV_GOING_DOWN:
        case NETDEV_UNREGISTER:
        case NETDEV_UNREGISTER_BATCH:
+       case NETDEV_RELEASE:
+       case NETDEV_JOIN:
                break;
        default:
                rtmsg_ifinfo(RTM_NEWLINK, dev, 0);