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authorMike Manning <mmanning@brocade.com>2016-05-27 17:45:07 +0100
committerDavid S. Miller <davem@davemloft.net>2016-05-31 11:56:48 -0700
commit308453aa9156a3b8ee382c0949befb507a32b0c1 (patch)
tree145f2f5206b47c3e1234aebc8208c6f872aa3e72 /net/8021q/vlan.h
parentf2633d2eaaab773ea8b29cea3785cf0f8a8872a5 (diff)
downloadlinux-308453aa9156a3b8ee382c0949befb507a32b0c1.tar.bz2
vlan: Propagate MAC address to VLANs
The MAC address of the physical interface is only copied to the VLAN when it is first created, resulting in an inconsistency after MAC address changes of only newly created VLANs having an up-to-date MAC. The VLANs should continue inheriting the MAC address of the physical interface until the VLAN MAC address is explicitly set to any value. This allows IPv6 EUI64 addresses for the VLAN to reflect any changes to the MAC of the physical interface and thus for DAD to behave as expected. Signed-off-by: Mike Manning <mmanning@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/8021q/vlan.h')
-rw-r--r--net/8021q/vlan.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/8021q/vlan.h b/net/8021q/vlan.h
index 9d010a09ab98..cc1557978066 100644
--- a/net/8021q/vlan.h
+++ b/net/8021q/vlan.h
@@ -109,6 +109,8 @@ int vlan_check_real_dev(struct net_device *real_dev,
void vlan_setup(struct net_device *dev);
int register_vlan_dev(struct net_device *dev);
void unregister_vlan_dev(struct net_device *dev, struct list_head *head);
+bool vlan_dev_inherit_address(struct net_device *dev,
+ struct net_device *real_dev);
static inline u32 vlan_get_ingress_priority(struct net_device *dev,
u16 vlan_tci)