/*
   * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
   *
   * SPDX-License-Identifier:	GPL-2.0+
   */
  
  #include <common.h>
  #include <linux/ctype.h>
  
  u8 table_compute_checksum(void *v, int len)
  {
  	u8 *bytes = v;
  	u8 checksum = 0;
  	int i;
  
  	for (i = 0; i < len; i++)
  		checksum -= bytes[i];
  
  	return checksum;
  }