Alexander Graf | 120b041 | 2016-08-19 01:23:22 +0200 | [diff] [blame] | 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 |