netdev: Handle ->addr_list_lock just like ->_xmit_lock for lockdep.

The new address list lock needs to handle the same device layering
issues that the _xmit_lock one does.

This integrates work done by Patrick McHardy.

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 efbc15567dd3..42394505bb50 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -276,6 +276,7 @@ static int macvlan_change_mtu(struct net_device *dev, int new_mtu)
  * separate class since they always nest.
  */
 static struct lock_class_key macvlan_netdev_xmit_lock_key;
+static struct lock_class_key macvlan_netdev_addr_lock_key;
 
 #define MACVLAN_FEATURES \
         (NETIF_F_SG | NETIF_F_ALL_CSUM | NETIF_F_HIGHDMA | NETIF_F_FRAGLIST | \
@@ -295,6 +296,8 @@ static void macvlan_set_lockdep_class_one(struct net_device *dev,
 
 static void macvlan_set_lockdep_class(struct net_device *dev)
 {
+        lockdep_set_class(&dev->addr_list_lock,
+                          &macvlan_netdev_addr_lock_key);
         netdev_for_each_tx_queue(dev, macvlan_set_lockdep_class_one, NULL);
 }