[VLAN]: set_rx_mode support for unicast address list

Reuse the existing logic for multicast list synchronization for the
unicast address list. The core of dev_mc_sync/unsync are split out as
__dev_addr_sync/unsync and moved from dev_mcast.c to dev.c.  These are
then used to implement dev_unicast_sync/unsync as well.

I'm working on cleaning up Intel's FCoE stack, which generates new MAC
addresses from the fibre channel device id assigned by the fabric as
per the current draft specification in T11.  When using such a
protocol in a VLAN environment it would be nice to not always be
forced into promiscuous mode, assuming the underlying Ethernet driver
supports multiple unicast addresses as well.

Signed-off-by: Chris Leech <christopher.leech@intel.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index b0813c3286b1..047d432bde55 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1414,12 +1414,16 @@ extern void		dev_set_rx_mode(struct net_device *dev);
 extern void             __dev_set_rx_mode(struct net_device *dev);
 extern int              dev_unicast_delete(struct net_device *dev, void *addr, int alen);
 extern int              dev_unicast_add(struct net_device *dev, void *addr, int alen);
+extern int              dev_unicast_sync(struct net_device *to, struct net_device *from);
+extern void             dev_unicast_unsync(struct net_device *to, struct net_device *from);
 extern int              dev_mc_delete(struct net_device *dev, void *addr, int alen, int all);
 extern int              dev_mc_add(struct net_device *dev, void *addr, int alen, int newonly);
 extern int              dev_mc_sync(struct net_device *to, struct net_device *from);
 extern void             dev_mc_unsync(struct net_device *to, struct net_device *from);
 extern int              __dev_addr_delete(struct dev_addr_list **list, int *count, void *addr, int alen, int all);
 extern int              __dev_addr_add(struct dev_addr_list **list, int *count, void *addr, int alen, int newonly);
+extern int              __dev_addr_sync(struct dev_addr_list **to, int *to_count, struct dev_addr_list **from, int *from_count);
+extern void             __dev_addr_unsync(struct dev_addr_list **to, int *to_count, struct dev_addr_list **from, int *from_count);
 extern void             dev_set_promiscuity(struct net_device *dev, int inc);
 extern void             dev_set_allmulti(struct net_device *dev, int inc);
 extern void             netdev_state_change(struct net_device *dev);