[PATCH] ixgb: Shrink size and fix ordering of elements in ixgb_buffer

Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com>

drivers/net/ixgb/ixgb.h

@@ -120,9 +120,9 @@ struct ixgb_adapter;
 struct ixgb_buffer {
 	struct sk_buff *skb;
 	uint64_t dma;
-	unsigned long length;
 	unsigned long time_stamp;
-	unsigned int next_to_watch;
+	uint16_t length;
+	uint16_t next_to_watch;
 };
 
 struct ixgb_desc_ring {