net: switchdev: extract struct switchdev_obj_*

Now that switchdev and its drivers directly use specific switchdev_obj_*
structures, move them out of the switchdev_obj union and get rif of this
outer structure.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/switchdev.h

@@ -64,16 +64,15 @@ enum switchdev_obj_id {
 	SWITCHDEV_OBJ_PORT_FDB,
 };
 
-struct switchdev_obj {
-	enum switchdev_obj_id id;
-	int (*cb)(struct switchdev_obj *obj);
-	union {
-		struct switchdev_obj_vlan {		/* PORT_VLAN */
+/* SWITCHDEV_OBJ_PORT_VLAN */
+struct switchdev_obj_vlan {
 	u16 flags;
 	u16 vid_begin;
 	u16 vid_end;
-		} vlan;
-		struct switchdev_obj_ipv4_fib {		/* IPV4_FIB */
+};
+
+/* SWITCHDEV_OBJ_IPV4_FIB */
+struct switchdev_obj_ipv4_fib {
 	u32 dst;
 	int dst_len;
 	struct fib_info *fi;
@@ -81,13 +80,13 @@ struct switchdev_obj {
 	u8 type;
 	u32 nlflags;
 	u32 tb_id;
-		} ipv4_fib;
-		struct switchdev_obj_fdb {		/* PORT_FDB */
+};
+
+/* SWITCHDEV_OBJ_PORT_FDB */
+struct switchdev_obj_fdb {
 	const unsigned char *addr;
 	u16 vid;
 	u16 ndm_state;
-		} fdb;
-	} u;
 };
 
 void switchdev_trans_item_enqueue(struct switchdev_trans *trans,
@@ -102,11 +101,11 @@ void *switchdev_trans_item_dequeue(struct switchdev_trans *trans);
  *
  * @switchdev_port_attr_set: Set a port attribute (see switchdev_attr).
  *
- * @switchdev_port_obj_add: Add an object to port (see switchdev_obj).
+ * @switchdev_port_obj_add: Add an object to port (see switchdev_obj_*).
  *
- * @switchdev_port_obj_del: Delete an object from port (see switchdev_obj).
+ * @switchdev_port_obj_del: Delete an object from port (see switchdev_obj_*).
  *
- * @switchdev_port_obj_dump: Dump port objects (see switchdev_obj).
+ * @switchdev_port_obj_dump: Dump port objects (see switchdev_obj_*).
  */
 struct switchdev_ops {
 	int	(*switchdev_port_attr_get)(struct net_device *dev,