diff --git a/lib/efi_loader/efi_disk.c b/lib/efi_loader/efi_disk.c
index ed99700..013842f 100644
--- a/lib/efi_loader/efi_disk.c
+++ b/lib/efi_loader/efi_disk.c
@@ -31,20 +31,15 @@
  *
  * @header:	EFI object header
  * @ops:	EFI disk I/O protocol interface
- * @dev_index:	device index of block device
  * @media:	block I/O media information
  * @dp:		device path to the block device
- * @part:	partition
  * @volume:	simple file system protocol of the partition
- * @dev:	associated DM device
  */
 struct efi_disk_obj {
 	struct efi_object header;
 	struct efi_block_io ops;
-	int dev_index;
 	struct efi_block_io_media media;
 	struct efi_device_path *dp;
-	unsigned int part;
 	struct efi_simple_file_system_protocol *volume;
 };
 
@@ -382,7 +377,6 @@
  * @parent:		parent handle
  * @dp_parent:		parent device path
  * @desc:		internal block device
- * @dev_index:		device index for block device
  * @part_info:		partition info
  * @part:		partition
  * @disk:		pointer to receive the created handle
@@ -393,7 +387,6 @@
 				efi_handle_t parent,
 				struct efi_device_path *dp_parent,
 				struct blk_desc *desc,
-				int dev_index,
 				struct disk_partition *part_info,
 				unsigned int part,
 				struct efi_disk_obj **disk,
@@ -455,7 +448,6 @@
 		diskobj->dp = efi_dp_from_part(desc, part);
 		diskobj->media.last_block = desc->lba - 1;
 	}
-	diskobj->part = part;
 
 	/*
 	 * Install the device path and the block IO protocol.
@@ -498,7 +490,6 @@
 			goto error;
 	}
 	diskobj->ops = block_io_disk_template;
-	diskobj->dev_index = dev_index;
 
 	/* Fill in EFI IO Media info (for read/write callbacks) */
 	diskobj->media.removable_media = desc->removable;
@@ -518,7 +509,7 @@
 
 	EFI_PRINT("BlockIO: part %u, present %d, logical %d, removable %d"
 		  ", last_block %llu\n",
-		  diskobj->part,
+		  part,
 		  diskobj->media.media_present,
 		  diskobj->media.logical_partition,
 		  diskobj->media.removable_media,
@@ -565,7 +556,7 @@
 	diskid = desc->devnum;
 
 	ret = efi_disk_add_dev(NULL, NULL, desc,
-			       diskid, NULL, 0, &disk, agent_handle);
+			       NULL, 0, &disk, agent_handle);
 	if (ret != EFI_SUCCESS) {
 		if (ret == EFI_NOT_READY) {
 			log_notice("Disk %s not ready\n", dev->name);
@@ -626,7 +617,7 @@
 		return -1;
 	dp_parent = (struct efi_device_path *)handler->protocol_interface;
 
-	ret = efi_disk_add_dev(parent, dp_parent, desc, diskid,
+	ret = efi_disk_add_dev(parent, dp_parent, desc,
 			       info, part, &disk, agent_handle);
 	if (ret != EFI_SUCCESS) {
 		log_err("Adding partition for %s failed\n", dev->name);