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authorXin Long <lucien.xin@gmail.com>2017-10-15 18:13:41 +0800
committerDavid S. Miller <davem@davemloft.net>2017-10-16 20:48:44 +0100
commit8a212589fe0e45f26c549dfa271a157ca8eea1ac (patch)
treefce3eaba2c663065959dbae25671ddc1cd9b76cd
parent8f718fa6bb668836dce3ca1ab8d29ce4b029a4a7 (diff)
downloadlinux-8a212589fe0e45f26c549dfa271a157ca8eea1ac.tar.bz2
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 <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/core/rtnetlink.c1
1 files changed, 1 insertions, 0 deletions
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: