https://github.com/torvalds/linux
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Tip revision: de9c2c66ad8e787abec7c9d7eff4f8c3cdd28aed authored by Linus Torvalds on 04 August 2024, 20:50:53 UTC
Linux 6.11-rc2
Tip revision: de9c2c6
crc-ccitt.h
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_CRC_CCITT_H
#define _LINUX_CRC_CCITT_H

#include <linux/types.h>

extern u16 const crc_ccitt_table[256];

extern u16 crc_ccitt(u16 crc, const u8 *buffer, size_t len);

static inline u16 crc_ccitt_byte(u16 crc, const u8 c)
{
	return (crc >> 8) ^ crc_ccitt_table[(crc ^ c) & 0xff];
}

#endif /* _LINUX_CRC_CCITT_H */
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