firewire: simplify a struct type

cleanup after "firewire: support S100B...S400B and link slower than PHY"

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
diff --git a/drivers/firewire/fw-topology.h b/drivers/firewire/fw-topology.h
index da61ec0..1b56b4a 100644
--- a/drivers/firewire/fw-topology.h
+++ b/drivers/firewire/fw-topology.h
@@ -27,10 +27,6 @@
 	FW_NODE_LINK_OFF =  0x04,
 };
 
-struct fw_port {
-	struct fw_node *node;
-};
-
 struct fw_node {
 	u16 node_id;
 	u8 color;
@@ -51,7 +47,7 @@
 	/* Upper layer specific data. */
 	void *data;
 
-	struct fw_port ports[0];
+	struct fw_node *ports[0];
 };
 
 static inline struct fw_node *