-#define OFFSET_OF_VBLK(Field) OFFSET_OF (VBLK_HDR, Field)\r
-#define SIZE_OF_VBLK(Field) (sizeof ((VBLK_HDR *) 0)->Field)\r
+#define OFFSET_OF_VBLK(Field) OFFSET_OF (VIRTIO_BLK_CONFIG, Field)\r
+#define SIZE_OF_VBLK(Field) (sizeof ((VIRTIO_BLK_CONFIG *) 0)->Field)\r