bridge: use dev->addr_assign_type to see if user change mac

And remove no longer used br->flags.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/bridge/br_device.c

@@ -176,7 +176,6 @@ static int br_set_mac_address(struct net_device *dev, void *p)
 		br_fdb_change_mac_address(br, addr->sa_data);
 		br_stp_change_bridge_id(br, addr->sa_data);
 	}
-	br->flags |= BR_SET_MAC_ADDR;
 	spin_unlock_bh(&br->lock);
 
 	return 0;

net/bridge/br_private.h

@@ -197,9 +197,6 @@ struct net_bridge
 	bool				nf_call_ip6tables;
 	bool				nf_call_arptables;
 #endif
-	unsigned long			flags;
-#define BR_SET_MAC_ADDR		0x00000001
-
 	u16				group_fwd_mask;
 
 	/* STP */

net/bridge/br_stp_if.c

@@ -216,7 +216,7 @@ bool br_stp_recalculate_bridge_id(struct net_bridge *br)
 	struct net_bridge_port *p;
 
 	/* user has chosen a value so keep it */
-	if (br->flags & BR_SET_MAC_ADDR)
+	if (br->dev->addr_assign_type == NET_ADDR_SET)
 		return false;
 
 	list_for_each_entry(p, &br->port_list, list) {