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

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

#include <linux/types.h>

u8 table_compute_checksum(const void *v, const int len)
{
	const 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	*/
1befb38b AG	5
467382ca	6	#include <linux/types.h>
1befb38b	7
e3db8d60	8	u8 table_compute_checksum(const void *v, const int len)
1befb38b	9	{
e3db8d60	10	const u8 *bytes = v;
1befb38b AG	11	u8 checksum = 0;
	12	int i;
	13
	14	for (i = 0; i < len; i++)
	15	checksum -= bytes[i];
	16
	17	return checksum;
	18	}