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/*

 * crc32.h

 * See linux/lib/crc32.c for license and changes

 */

#ifndef _LINUX_CRC32_H

#define _LINUX_CRC32_H

#include <linux/types.h>

#include <linux/bitrev.h>

extern u32  crc32_le(u32 crc, unsigned char const *p, size_t len);

extern u32  crc32_be(u32 crc, unsigned char const *p, size_t len);

#define crc32(seed, data, length)  crc32_le(seed, (unsigned char const *)data, length)

/*

 * Helpers for hash table generation of ethernet nics:

 *

 * Ethernet sends the least significant bit of a byte first, thus crc32_le

 * is used. The output of crc32_le is bit reversed [most significant bit

 * is in bit nr 0], thus it must be reversed before use. Except for

 * nics that bit swap the result internally...

 */

#define ether_crc(length, data)    bitrev32(crc32_le(~0, data, length))

#define ether_crc_le(length, data) crc32_le(~0, data, length)

#endif /* _LINUX_CRC32_H */