| Tom Rini | 10e4779 | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| Alexander Graf | ee532d9 | 2016-08-19 01:23:21 +0200 | [diff] [blame] | 2 | /* |
| 3 | * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com> | ||||
| Alexander Graf | ee532d9 | 2016-08-19 01:23:21 +0200 | [diff] [blame] | 4 | */ |
| 5 | |||||
| Tom Rini | a877ce1 | 2023-12-14 13:16:58 -0500 | [diff] [blame] | 6 | #include <linux/types.h> |
| Alexander Graf | ee532d9 | 2016-08-19 01:23:21 +0200 | [diff] [blame] | 7 | |
| Heinrich Schuchardt | 822cf85 | 2024-01-09 09:36:44 +0100 | [diff] [blame] | 8 | u8 table_compute_checksum(const void *v, const int len) |
| Alexander Graf | ee532d9 | 2016-08-19 01:23:21 +0200 | [diff] [blame] | 9 | { |
| Heinrich Schuchardt | 822cf85 | 2024-01-09 09:36:44 +0100 | [diff] [blame] | 10 | const u8 *bytes = v; |
| Alexander Graf | ee532d9 | 2016-08-19 01:23:21 +0200 | [diff] [blame] | 11 | u8 checksum = 0; |
| 12 | int i; | ||||
| 13 | |||||
| 14 | for (i = 0; i < len; i++) | ||||
| 15 | checksum -= bytes[i]; | ||||
| 16 | |||||
| 17 | return checksum; | ||||
| 18 | } | ||||