rtnetlink: Do not generate notifications for MTU events
Changing MTU on a link currently causes 3 messages to be sent to userspace: [LINK]11: dummy1: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1490 qdisc noqueue state UNKNOWN group default link/ether f2:52:5c:6d:21:f3 brd ff:ff:ff:ff:ff:ff [LINK]11: dummy1: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default link/ether f2:52:5c:6d:21:f3 brd ff:ff:ff:ff:ff:ff [LINK]11: dummy1: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default link/ether f2:52:5c:6d:21:f3 brd ff:ff:ff:ff:ff:ff Remove the messages sent for PRE_CHANGE_MTU and CHANGE_MTU netdev events. Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -4117,7 +4117,6 @@ static int rtnetlink_event(struct notifier_block *this, unsigned long event, voi
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switch (event) {
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case NETDEV_REBOOT:
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case NETDEV_CHANGEMTU:
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case NETDEV_CHANGEADDR:
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case NETDEV_CHANGENAME:
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case NETDEV_FEAT_CHANGE:
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@ -4126,7 +4125,6 @@ static int rtnetlink_event(struct notifier_block *this, unsigned long event, voi
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case NETDEV_NOTIFY_PEERS:
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case NETDEV_CHANGEUPPER:
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case NETDEV_RESEND_IGMP:
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case NETDEV_PRECHANGEMTU:
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case NETDEV_CHANGEINFODATA:
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case NETDEV_PRECHANGEUPPER:
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case NETDEV_CHANGELOWERSTATE:
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