net/bonding: emit address change event also in bond_release

commit 7d26bb103c4 "bonding: emit event when bonding changes MAC" didn't
take care to emit the NETDEV_CHANGEADDR event in bond_release, where bonding
actually changes the mac address (to all zeroes). As a result the neighbours
aren't deleted by the core networking code (which does so upon getting that
event).

Signed-off-by: Shlomo Pongratz <shlomop@mellanox.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 941b4e189adf..5cb85cb0be4f 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2034,6 +2034,9 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev)
         write_unlock_bh(&bond->lock);
         unblock_netpoll_tx();
 
+        if (bond->slave_cnt == 0)
+                call_netdevice_notifiers(NETDEV_CHANGEADDR, bond->dev);
+
         bond_compute_features(bond);
         if (!(bond_dev->features & NETIF_F_VLAN_CHALLENGED) &&
             (old_features & NETIF_F_VLAN_CHALLENGED))