bonding: don't add duplicate targets to arp_ip_target

Print a warning and skip them.

Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 976d28e3498a..1645130c0a60 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4588,7 +4588,11 @@ static int bond_check_params(struct bond_params *params)
                                    arp_ip_target[i]);
                         arp_interval = 0;
                 } else {
-                        arp_target[arp_ip_count++] = ip;
+                        if (bond_get_targets_ip(arp_target, ip) == -1)
+                                arp_target[arp_ip_count++] = ip;
+                        else
+                                pr_warning("Warning: duplicate address %pI4 in arp_ip_target, skipping\n",
+                                           &ip);
                 }
         }