| /* | |
| * 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 */ |