macvlan fdb replace support

Add support for iproute2 command 'bridge fdb replace ...'.
The rtnletlink call back function ndo_fdb_add will be called
with the NLM_F_REPLACE flag set.
Simply return -EOPNOTSUP.

Resubmitted because net-next was closed last week.

Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 18373b6ae37d..74907f53fdb4 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -597,6 +597,9 @@ static int macvlan_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
         if (!vlan->port->passthru)
                 return -EOPNOTSUPP;
 
+        if (flags & NLM_F_REPLACE)
+                return -EOPNOTSUPP;
+
         if (is_unicast_ether_addr(addr))
                 err = dev_uc_add_excl(dev, addr);
         else if (is_multicast_ether_addr(addr))