1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _LINUX_CRC4_H 3 #define _LINUX_CRC4_H 4 5 #include <linux/types.h> 6 7 extern uint8_t crc4(uint8_t c, uint64_t x, int bits); 8 9 #endif /* _LINUX_CRC4_H */ 10