u-boot/lib/tables_csum.c
Heinrich Schuchardt e3db8d60be lib: make table_compute_checksum() arguments const
table_compute_checksum() does neither changes the content of the
checksummed buffer nor the buffer length. Adding const to the
definition makes the function wider usable.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2024-01-09 10:08:52 +01:00

18 lines
303 B
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;
}