--- zzzz-none-000/linux-4.9.279/drivers/mtd/ubi/vtbl.c	2021-08-08 06:38:54.000000000 +0000
+++ puma7-arm-6591-750/linux-4.9.279/drivers/mtd/ubi/vtbl.c	2023-02-08 10:58:13.000000000 +0000
@@ -20,6 +20,11 @@
  */
 
 /*
+ * Includes Intel Corporation's changes/modifications dated: 2017.
+ * Changed/modified portions - Copyright (c) 2017, Intel Corporation.
+ */
+
+/*
  * This file includes volume table manipulation code. The volume table is an
  * on-flash table containing volume meta-data like name, number of reserved
  * physical eraseblocks, type, etc. The volume table is stored in the so-called
@@ -64,7 +69,12 @@
 #include <asm/div64.h>
 #include "ubi.h"
 
+#ifdef CONFIG_MTD_UBI_DEBUG
 static void self_vtbl_check(const struct ubi_device *ubi);
+#else
+#define self_vtbl_check(ubi)
+#define ubi_dump_av(av)
+#endif
 
 /* Empty volume table record */
 static struct ubi_vtbl_record empty_vtbl_record;
@@ -855,6 +865,8 @@
 	return err;
 }
 
+#ifdef CONFIG_MTD_UBI_DEBUG
+
 /**
  * self_vtbl_check - check volume table.
  * @ubi: UBI device description object
@@ -869,3 +881,5 @@
 		BUG();
 	}
 }
+
+#endif