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-rw-r--r--drivers/net/macvlan.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 18373b6..74907f5 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))