--- zzzz-none-000/linux-4.9.279/drivers/mtd/ubi/debug.c	2021-08-08 06:38:54.000000000 +0000
+++ puma7-arm-6591-750/linux-4.9.279/drivers/mtd/ubi/debug.c	2023-02-08 10:58:13.000000000 +0000
@@ -18,6 +18,11 @@
  * Author: Artem Bityutskiy (Битюцкий Артём)
  */
 
+/*
+ * Includes Intel Corporation's changes/modifications dated: 2017.
+ * Changed/modified portions - Copyright (c) 2017, Intel Corporation.
+ */
+
 #include "ubi.h"
 #include <linux/debugfs.h>
 #include <linux/uaccess.h>
@@ -100,6 +105,7 @@
 		       vid_hdr, UBI_VID_HDR_SIZE, 1);
 }
 
+#ifdef CONFIG_MTD_UBI_DEBUG
 /**
  * ubi_dump_vol_info - dump volume information.
  * @vol: UBI volume description object
@@ -512,6 +518,8 @@
 		debugfs_remove_recursive(ubi->dbg.dfs_dir);
 }
 
+#endif /* CONFIG_MTD_UBI_DEBUG */
+
 /**
  * ubi_dbg_power_cut - emulate a power cut if it is time to do so
  * @ubi: UBI device description object