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crc-ccitt.h

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linux-6.19.14/include/linux/crc-ccitt.h C
 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _LINUX_CRC_CCITT_H
 3#define _LINUX_CRC_CCITT_H
 4
 5#include <linux/types.h>
 6
 7extern u16 const crc_ccitt_table[256];
 8
 9extern u16 crc_ccitt(u16 crc, const u8 *buffer, size_t len);
10
11static inline u16 crc_ccitt_byte(u16 crc, const u8 c)
12{
13	return (crc >> 8) ^ crc_ccitt_table[(crc ^ c) & 0xff];
14}
15
16#endif /* _LINUX_CRC_CCITT_H */
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