1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (c) 2013 Google, Inc
6 #include "linux/crc8.h"
8 #define POLY (0x1070U << 3)
10 static unsigned char _crc8(unsigned short data)
14 for (i = 0; i < 8; i++) {
20 return (unsigned char)(data >> 8);
23 unsigned int crc8(unsigned int crc, const unsigned char *vptr, int len)
27 for (i = 0; i < len; i++)
28 crc = _crc8((crc ^ vptr[i]) << 8);