crc32.c File Reference

#include <linux/crc32.h>
#include <linux/module.h>
#include <linux/types.h>
#include "crc32defs.h"
#include "crc32table.h"

Go to the source code of this file.

Macros
#define	tole(x)   ((__force u32) __constant_cpu_to_le32(x))
#define	tobe(x)   ((__force u32) __constant_cpu_to_be32(x))
#define	DO_CRC(x)   crc = t0[((crc >> 24) ^ (x)) & 255] ^ (crc << 8)
#define	DO_CRC4
#define	DO_CRC8

Functions
	MODULE_AUTHOR ("Matt Domsch <[email protected]>")
	MODULE_DESCRIPTION ("Various CRC32 calculations")
	MODULE_LICENSE ("GPL")
u32 __pure	crc32_le (u32 crc, unsigned char const *p, size_t len)
u32 __pure	__crc32c_le (u32 crc, unsigned char const *p, size_t len)
	EXPORT_SYMBOL (crc32_le)
	EXPORT_SYMBOL (__crc32c_le)
u32 __pure	crc32_be (u32 crc, unsigned char const *p, size_t len)
	EXPORT_SYMBOL (crc32_be)

Macro Definition Documentation

#define DO_CRC

(

x

)

crc = t0[((crc >> 24) ^ (x)) & 255] ^ (crc << 8)

#define DO_CRC4

Value:

(t0[(q) & 255] ^ t1[(q >> 8) & 255] ^ \
           t2[(q >> 16) & 255] ^ t3[(q >> 24) & 255])

#define DO_CRC8

Value:

(t4[(q) & 255] ^ t5[(q >> 8) & 255] ^ \
           t6[(q >> 16) & 255] ^ t7[(q >> 24) & 255])

#define tobe

(

x

)

((__force u32) __constant_cpu_to_be32(x))

Definition at line 41 of file crc32.c.

#define tole

(

x

)

((__force u32) __constant_cpu_to_le32(x))

Definition at line 35 of file crc32.c.

Function Documentation

u32 __pure __crc32c_le	(	u32	crc,
		unsigned char const *	p,
		size_t	len
	)

Definition at line 194 of file crc32.c.

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

Definition at line 256 of file crc32.c.

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

Definition at line 189 of file crc32.c.

EXPORT_SYMBOL

(

crc32_le

)

EXPORT_SYMBOL

(

__crc32c_le

)

EXPORT_SYMBOL

(

crc32_be

)

MODULE_AUTHOR

(

"Matt Domsch <[email protected]>"

)

MODULE_DESCRIPTION

(

"Various CRC32 calculations"

)

MODULE_LICENSE

(

"GPL"

)