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net: Add netif_is_l3_slave

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IPv6 addrconf keys off of IFF_SLAVE so can not use it for L3 slave.
Add a new private flag and add netif_is_l3_slave function for checking
it.

Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern
2015-10-05 08:51:24 -07:00
committed by David S. Miller
parent 6e2895a8e3
commit fee6d4c777
3 changed files with 15 additions and 10 deletions
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7
include/linux/netdevice.h
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@@ -1261,6 +1261,7 @@ struct net_device_ops {
* @IFF_L3MDEV_MASTER: device is an L3 master device
* @IFF_NO_QUEUE: device can run without qdisc attached
* @IFF_OPENVSWITCH: device is a Open vSwitch master
* @IFF_L3MDEV_SLAVE: device is enslaved to an L3 master device
*/
enum netdev_priv_flags {
IFF_802_1Q_VLAN = 1<<0,
@@ -1286,6 +1287,7 @@ enum netdev_priv_flags {
IFF_L3MDEV_MASTER = 1<<20,
IFF_NO_QUEUE = 1<<21,
IFF_OPENVSWITCH = 1<<22,
IFF_L3MDEV_SLAVE = 1<<23,
};
#define IFF_802_1Q_VLAN IFF_802_1Q_VLAN
@@ -3830,6 +3832,11 @@ static inline bool netif_is_l3_master(const struct net_device *dev)
return dev->priv_flags & IFF_L3MDEV_MASTER;
}
static inline bool netif_is_l3_slave(const struct net_device *dev)
{
return dev->priv_flags & IFF_L3MDEV_SLAVE;
}
static inline bool netif_is_bridge_master(const struct net_device *dev)
{
return dev->priv_flags & IFF_EBRIDGE;