diff options
| author | Jiri Pirko <jiri@mellanox.com> | 2015-10-16 14:01:22 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-10-16 07:15:05 -0700 |
| commit | 573c7ba006edbecff0714db651dd3602b9d0a6a0 (patch) | |
| tree | 95f4e65ae8d2940047c1211fca064bccd41b25eb /include/linux/netdevice.h | |
| parent | 125ecf4b5994f17cb581af399933d0bd0b153080 (diff) | |
net: introduce pre-change upper device notifier
This newly introduced netdevice notifier is called before actual change
upper happens. That provides a possibility for notifier handlers to
know upper change will happen and react to it, including possibility to
forbid the change. That is valuable for drivers which can check if the
upper device linkage is supported and forbid that in case it is not.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/netdevice.h')
| -rw-r--r-- | include/linux/netdevice.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index b3374402c1ea..69fdd427c8cb 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2106,6 +2106,7 @@ struct pcpu_sw_netstats { #define NETDEV_PRECHANGEMTU 0x0017 /* notify before mtu change happened */ #define NETDEV_CHANGEINFODATA 0x0018 #define NETDEV_BONDING_INFO 0x0019 +#define NETDEV_PRECHANGEUPPER 0x001A int register_netdevice_notifier(struct notifier_block *nb); int unregister_netdevice_notifier(struct notifier_block *nb); |