bonding: when cloning a MAC use NET_ADDR_STOLEN

A simple semantic change, when a slave's MAC is cloned by the bond
master then set addr_assign_type to NET_ADDR_STOLEN instead of
NET_ADDR_SET. Also use bond_set_dev_addr() in BOND_FOM_ACTIVE mode
to change the bond's MAC address because the assign_type has to be
set properly.

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 0da3c12..ec44580 100644 (file)
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -833,6 +833,24 @@ static void bond_hw_addr_swap(struct bonding *bond, struct slave *new_active,
        }
 }
 
+/**
+ * bond_set_dev_addr - clone slave's address to bond
+ * @bond_dev: bond net device
+ * @slave_dev: slave net device
+ *
+ * Should be called with RTNL held.
+ */
+static void bond_set_dev_addr(struct net_device *bond_dev,
+                             struct net_device *slave_dev)
+{
+       pr_debug("bond_dev=%p\n", bond_dev);
+       pr_debug("slave_dev=%p\n", slave_dev);
+       pr_debug("slave_dev->addr_len=%d\n", slave_dev->addr_len);
+       memcpy(bond_dev->dev_addr, slave_dev->dev_addr, slave_dev->addr_len);
+       bond_dev->addr_assign_type = NET_ADDR_STOLEN;
+       call_netdevice_notifiers(NETDEV_CHANGEADDR, bond_dev);
+}
+
 /*
  * bond_do_fail_over_mac
  *
@@ -855,11 +873,9 @@ static void bond_do_fail_over_mac(struct bonding *bond,
        switch (bond->params.fail_over_mac) {
        case BOND_FOM_ACTIVE:
                if (new_active) {
-                       memcpy(bond->dev->dev_addr,  new_active->dev->dev_addr,
-                              new_active->dev->addr_len);
                        write_unlock_bh(&bond->curr_slave_lock);
                        read_unlock(&bond->lock);
-                       call_netdevice_notifiers(NETDEV_CHANGEADDR, bond->dev);
+                       bond_set_dev_addr(bond->dev, new_active->dev);
                        read_lock(&bond->lock);
                        write_lock_bh(&bond->curr_slave_lock);
                }
@@ -1290,17 +1306,6 @@ static void bond_netpoll_cleanup(struct net_device *bond_dev)
 
 /*---------------------------------- IOCTL ----------------------------------*/
 
-static void bond_set_dev_addr(struct net_device *bond_dev,
-                             struct net_device *slave_dev)
-{
-       pr_debug("bond_dev=%p\n", bond_dev);
-       pr_debug("slave_dev=%p\n", slave_dev);
-       pr_debug("slave_dev->addr_len=%d\n", slave_dev->addr_len);
-       memcpy(bond_dev->dev_addr, slave_dev->dev_addr, slave_dev->addr_len);
-       bond_dev->addr_assign_type = NET_ADDR_SET;
-       call_netdevice_notifiers(NETDEV_CHANGEADDR, bond_dev);
-}
-
 static netdev_features_t bond_fix_features(struct net_device *dev,
        netdev_features_t features)
 {