]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
rtnetlink: bring NETDEV_CHANGEMTU event process back in rtnetlink_event
authorXin Long <lucien.xin@gmail.com>
Sun, 15 Oct 2017 10:13:41 +0000 (18:13 +0800)
committerDavid S. Miller <davem@davemloft.net>
Mon, 16 Oct 2017 19:48:44 +0000 (20:48 +0100)
commit8a212589fe0e45f26c549dfa271a157ca8eea1ac
treefce3eaba2c663065959dbae25671ddc1cd9b76cd
parent8f718fa6bb668836dce3ca1ab8d29ce4b029a4a7
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>
net/core/rtnetlink.c