diff options
| author | Krzysztof Kozlowski <krzk@kernel.org> | 2018-07-17 18:05:37 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-07-27 13:04:33 +0200 |
| commit | e37f2f93afe594682702439ca34eb8130598cdf2 (patch) | |
| tree | 7a732e598720bc519788034b13c1cfcb2fa44361 | |
| parent | lib/crc: Move polynomial definition to separate header (diff) | |
| download | linux-e37f2f93afe594682702439ca34eb8130598cdf2.tar.xz linux-e37f2f93afe594682702439ca34eb8130598cdf2.zip | |
lib/crc: Use consistent naming for CRC-32 polynomials
Header was defining CRCPOLY_LE/BE and CRC32C_POLY_LE but in fact all of
them are CRC-32 polynomials so use consistent naming.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | include/linux/crc32poly.h | 4 | ||||
| -rw-r--r-- | lib/crc32.c | 10 | ||||
| -rw-r--r-- | lib/gen_crc32table.c | 4 |
3 files changed, 9 insertions, 9 deletions
diff --git a/include/linux/crc32poly.h b/include/linux/crc32poly.h index 7ad5aa92d3c7..62c4b7790a28 100644 --- a/include/linux/crc32poly.h +++ b/include/linux/crc32poly.h @@ -7,8 +7,8 @@ * *the* standard CRC-32 polynomial, first popularized by Ethernet. * x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x^1+x^0 */ -#define CRCPOLY_LE 0xedb88320 -#define CRCPOLY_BE 0x04c11db7 +#define CRC32_POLY_LE 0xedb88320 +#define CRC32_POLY_BE 0x04c11db7 /* * This is the CRC32c polynomial, as outlined by Castagnoli. diff --git a/lib/crc32.c b/lib/crc32.c index 341c54cb4edf..a6c9afafc8c8 100644 --- a/lib/crc32.c +++ b/lib/crc32.c @@ -185,7 +185,7 @@ static inline u32 __pure crc32_le_generic(u32 crc, unsigned char const *p, #if CRC_LE_BITS == 1 u32 __pure crc32_le(u32 crc, unsigned char const *p, size_t len) { - return crc32_le_generic(crc, p, len, NULL, CRCPOLY_LE); + return crc32_le_generic(crc, p, len, NULL, CRC32_POLY_LE); } u32 __pure __crc32c_le(u32 crc, unsigned char const *p, size_t len) { @@ -195,7 +195,7 @@ u32 __pure __crc32c_le(u32 crc, unsigned char const *p, size_t len) u32 __pure crc32_le(u32 crc, unsigned char const *p, size_t len) { return crc32_le_generic(crc, p, len, - (const u32 (*)[256])crc32table_le, CRCPOLY_LE); + (const u32 (*)[256])crc32table_le, CRC32_POLY_LE); } u32 __pure __crc32c_le(u32 crc, unsigned char const *p, size_t len) { @@ -269,7 +269,7 @@ static u32 __attribute_const__ crc32_generic_shift(u32 crc, size_t len, u32 __attribute_const__ crc32_le_shift(u32 crc, size_t len) { - return crc32_generic_shift(crc, len, CRCPOLY_LE); + return crc32_generic_shift(crc, len, CRC32_POLY_LE); } u32 __attribute_const__ __crc32c_le_shift(u32 crc, size_t len) @@ -331,13 +331,13 @@ static inline u32 __pure crc32_be_generic(u32 crc, unsigned char const *p, #if CRC_LE_BITS == 1 u32 __pure crc32_be(u32 crc, unsigned char const *p, size_t len) { - return crc32_be_generic(crc, p, len, NULL, CRCPOLY_BE); + return crc32_be_generic(crc, p, len, NULL, CRC32_POLY_BE); } #else u32 __pure crc32_be(u32 crc, unsigned char const *p, size_t len) { return crc32_be_generic(crc, p, len, - (const u32 (*)[256])crc32table_be, CRCPOLY_BE); + (const u32 (*)[256])crc32table_be, CRC32_POLY_BE); } #endif EXPORT_SYMBOL(crc32_be); diff --git a/lib/gen_crc32table.c b/lib/gen_crc32table.c index 34c3bc826f45..f755b997b967 100644 --- a/lib/gen_crc32table.c +++ b/lib/gen_crc32table.c @@ -58,7 +58,7 @@ static void crc32init_le_generic(const uint32_t polynomial, static void crc32init_le(void) { - crc32init_le_generic(CRCPOLY_LE, crc32table_le); + crc32init_le_generic(CRC32_POLY_LE, crc32table_le); } static void crc32cinit_le(void) @@ -77,7 +77,7 @@ static void crc32init_be(void) crc32table_be[0][0] = 0; for (i = 1; i < BE_TABLE_SIZE; i <<= 1) { - crc = (crc << 1) ^ ((crc & 0x80000000) ? CRCPOLY_BE : 0); + crc = (crc << 1) ^ ((crc & 0x80000000) ? CRC32_POLY_BE : 0); for (j = 0; j < i; j++) crc32table_be[0][i + j] = crc ^ crc32table_be[0][j]; } |