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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | #ifndef _LINUX_CRC_CCITT_H |
3 | #define _LINUX_CRC_CCITT_H | |
1da177e4 LT |
4 | |
5 | #include <linux/types.h> | |
6 | ||
7 | extern u16 const crc_ccitt_table[256]; | |
8 | ||
9 | extern u16 crc_ccitt(u16 crc, const u8 *buffer, size_t len); | |
10 | ||
11 | static inline u16 crc_ccitt_byte(u16 crc, const u8 c) | |
12 | { | |
13 | return (crc >> 8) ^ crc_ccitt_table[(crc ^ c) & 0xff]; | |
14 | } | |
15 | ||
1da177e4 | 16 | #endif /* _LINUX_CRC_CCITT_H */ |