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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* crc16.h - CRC-16 routine
*
* Implements the standard CRC-16:
* Width 16
* Poly 0x8005 (x^16 + x^15 + x^2 + 1)
* Init 0
*
* Copyright (c) 2005 Ben Gardner <[email protected]>
*/
#ifndef __CRC16_H
#define __CRC16_H
#include <linux/types.h>
extern u16 const crc16_table[256];
extern u16 crc16(u16 crc, const u8 *buffer, size_t len);
static inline u16 crc16_byte(u16 crc, const u8 data)
{
return (crc >> 8) ^ crc16_table[(crc ^ data) & 0xff];
}
#endif /* __CRC16_H */