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[u-boot.git] / include / tables_csum.h
1 /*
2 * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
3 *
4 * SPDX-License-Identifier: GPL-2.0+
5 */
6
7 #ifndef _TABLES_CSUM_H_
8 #define _TABLES_CSUM_H_
9
10 static inline u8 table_compute_checksum(void *v, int len)
11 {
12 u8 *bytes = v;
13 u8 checksum = 0;
14 int i;
15
16 for (i = 0; i < len; i++)
17 checksum -= bytes[i];
18
19 return checksum;
20 }
21
22 #endif