net: add address assign type "SET"

This is the way to indicate that mac address of a device has been set by
dev_set_mac_address()

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 6835b5837f93..c5031a45e185 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -64,6 +64,8 @@ struct wireless_dev;
 #define NET_ADDR_PERM           0       /* address is permanent (default) */
 #define NET_ADDR_RANDOM         1       /* address is generated randomly */
 #define NET_ADDR_STOLEN         2       /* address is stolen from other device */
+#define NET_ADDR_SET            3       /* address is set using
+                                         * dev_set_mac_address() */
 
 /* Backlog congestion levels */
 #define NET_RX_SUCCESS          0       /* keep 'em coming, baby */
diff --git a/net/core/dev.c b/net/core/dev.c
index c85e32b30f04..bddb2f2ccaa9 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5022,6 +5022,7 @@ int dev_set_mac_address(struct net_device *dev, struct sockaddr *sa)
         err = ops->ndo_set_mac_address(dev, sa);
         if (err)
                 return err;
+        dev->addr_assign_type = NET_ADDR_SET;
         call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
         add_device_randomness(dev->dev_addr, dev->addr_len);
         return 0;