[thirdparty/u-boot.git] / lib / tables_csum.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
 */

#include <common.h>
#include <linux/ctype.h>

u8 table_compute_checksum(void *v, int len)
{
	u8 *bytes = v;
	u8 checksum = 0;
	int i;

	for (i = 0; i < len; i++)
		checksum -= bytes[i];

	return checksum;
}
Commit	Line	Data
83d290c5	1	// SPDX-License-Identifier: GPL-2.0+
1befb38b AG	2	/*
1befb38b AG	3	* Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
1befb38b AG	4	*/
	5
	6	#include <common.h>
	7	#include <linux/ctype.h>
	8
	9	u8 table_compute_checksum(void *v, int len)
	10	{
	11	u8 *bytes = v;
	12	u8 checksum = 0;
	13	int i;
	14
	15	for (i = 0; i < len; i++)
	16	checksum -= bytes[i];
	17
	18	return checksum;
	19	}