| Tom Rini | 10e4779 | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
| Alexander Graf | 120b041 | 2016-08-19 01:23:22 +0200 | [diff] [blame] | 2 | /* |
| 3 | * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com> |
| Alexander Graf | 120b041 | 2016-08-19 01:23:22 +0200 | [diff] [blame] | 4 | */ |
| 5 | |
| 6 | #ifndef _TABLES_CSUM_H_ |
| 7 | #define _TABLES_CSUM_H_ |
| 8 | |
| 9 | static inline 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 | } |
| 20 | |
| 21 | #endif |