diff --git a/kernel/ethosu_buffer.h b/kernel/ethosu_buffer.h
index bc5958c..1829fbe 100644
--- a/kernel/ethosu_buffer.h
+++ b/kernel/ethosu_buffer.h
@@ -1,5 +1,6 @@
 /*
- * Copyright 2020,2022-2023 Arm Limited and/or its affiliates
+ * SPDX-FileCopyrightText: Copyright 2020,2022-2023 Arm Limited and/or its affiliates <open-source-office@arm.com>
+ * SPDX-License-Identifier: GPL-2.0-only
  *
  * This program is free software and is provided to you under the terms of the
  * GNU General Public License version 2 as published by the Free Software
@@ -14,8 +15,6 @@
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, you can access it online at
  * http://www.gnu.org/licenses/gpl-2.0.html.
- *
- * SPDX-License-Identifier: GPL-2.0-only
  */
 
 #ifndef ETHOSU_BUFFER_H
@@ -40,21 +39,14 @@
  * @dev:		Device
  * @file:		File
  * @kref:		Reference counting
- * @capacity:		Maximum capacity of the buffer
- * @offset:		Offset to first byte of buffer
- * @size:		Size of the data in the buffer
+ * @size:		Size of the buffer
  * @cpu_addr:		Kernel mapped address
  * @dma_addr:		DMA address
- * @dma_addr_orig:	Original DMA address before range mapping
- *
- * 'offset + size' must not be larger than 'capacity'.
  */
 struct ethosu_buffer {
 	struct device *dev;
 	struct file   *file;
 	struct kref   kref;
-	size_t        capacity;
-	size_t        offset;
 	size_t        size;
 	void          *cpu_addr;
 	dma_addr_t    dma_addr;
@@ -72,7 +64,7 @@
  * Return: fd on success, else error code.
  */
 int ethosu_buffer_create(struct device *dev,
-			 size_t capacity);
+			 size_t size);
 
 /**
  * ethosu_buffer_get_from_fd() - Get buffer handle from fd
@@ -93,13 +85,4 @@
  */
 void ethosu_buffer_put(struct ethosu_buffer *buf);
 
-/**
- * ethosu_buffer_resize() - Resize and validate buffer
- *
- * Return: 0 on success, else error code.
- */
-int ethosu_buffer_resize(struct ethosu_buffer *buf,
-			 size_t size,
-			 size_t offset);
-
 #endif /* ETHOSU_BUFFER_H */