From 8a212589fe0e45f26c549dfa271a157ca8eea1ac Mon Sep 17 00:00:00 2001 From: Xin Long Date: Sun, 15 Oct 2017 18:13:41 +0800 Subject: rtnetlink: bring NETDEV_CHANGEMTU event process back in rtnetlink_event Commit 085e1a65f04f ("rtnetlink: Do not generate notifications for MTU events") tried to fix the redundant notifications issue when ip link set mtu by removing NETDEV_CHANGEMTU event process in rtnetlink_event. But it also resulted in no notification generated when dev's mtu is changed via other methods, like: 'ifconfig eth1 mtu 1400' or 'echo 1400 > /sys/class/net/eth1/mtu' It would cause users not to be notified by this change. This patch is to fix it by bringing NETDEV_CHANGEMTU event back into rtnetlink_event, and the redundant notifications issue will be fixed in the later patch 'rtnetlink: check DO_SETLINK_NOTIFY correctly in do_setlink'. Fixes: 085e1a65f04f ("rtnetlink: Do not generate notifications for MTU events") Signed-off-by: Xin Long Signed-off-by: David S. Miller --- net/core/rtnetlink.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index d4bcdcc68e92..72053ed7c891 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -4279,6 +4279,7 @@ 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: -- cgit v1.2.3-59-g8ed1b