diff options
Diffstat (limited to 'crypto/crc32.c')
-rw-r--r-- | crypto/crc32.c | 65 |
1 files changed, 6 insertions, 59 deletions
diff --git a/crypto/crc32.c b/crypto/crc32.c index cc371d42601f..489cbed9422e 100644 --- a/crypto/crc32.c +++ b/crypto/crc32.c @@ -59,29 +59,12 @@ static int crc32_update(struct shash_desc *desc, const u8 *data, { u32 *crcp = shash_desc_ctx(desc); - *crcp = crc32_le_base(*crcp, data, len); - return 0; -} - -static int crc32_update_arch(struct shash_desc *desc, const u8 *data, - unsigned int len) -{ - u32 *crcp = shash_desc_ctx(desc); - *crcp = crc32_le(*crcp, data, len); return 0; } /* No final XOR 0xFFFFFFFF, like crc32_le */ -static int __crc32_finup(u32 *crcp, const u8 *data, unsigned int len, - u8 *out) -{ - put_unaligned_le32(crc32_le_base(*crcp, data, len), out); - return 0; -} - -static int __crc32_finup_arch(u32 *crcp, const u8 *data, unsigned int len, - u8 *out) +static int __crc32_finup(u32 *crcp, const u8 *data, unsigned int len, u8 *out) { put_unaligned_le32(crc32_le(*crcp, data, len), out); return 0; @@ -93,12 +76,6 @@ static int crc32_finup(struct shash_desc *desc, const u8 *data, return __crc32_finup(shash_desc_ctx(desc), data, len, out); } -static int crc32_finup_arch(struct shash_desc *desc, const u8 *data, - unsigned int len, u8 *out) -{ - return __crc32_finup_arch(shash_desc_ctx(desc), data, len, out); -} - static int crc32_final(struct shash_desc *desc, u8 *out) { u32 *crcp = shash_desc_ctx(desc); @@ -113,13 +90,7 @@ static int crc32_digest(struct shash_desc *desc, const u8 *data, return __crc32_finup(crypto_shash_ctx(desc->tfm), data, len, out); } -static int crc32_digest_arch(struct shash_desc *desc, const u8 *data, - unsigned int len, u8 *out) -{ - return __crc32_finup_arch(crypto_shash_ctx(desc->tfm), data, len, out); -} - -static struct shash_alg algs[] = {{ +static struct shash_alg alg = { .setkey = crc32_setkey, .init = crc32_init, .update = crc32_update, @@ -130,46 +101,23 @@ static struct shash_alg algs[] = {{ .digestsize = CHKSUM_DIGEST_SIZE, .base.cra_name = "crc32", - .base.cra_driver_name = "crc32-generic", + .base.cra_driver_name = "crc32-lib", .base.cra_priority = 100, .base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY, .base.cra_blocksize = CHKSUM_BLOCK_SIZE, .base.cra_ctxsize = sizeof(u32), .base.cra_module = THIS_MODULE, .base.cra_init = crc32_cra_init, -}, { - .setkey = crc32_setkey, - .init = crc32_init, - .update = crc32_update_arch, - .final = crc32_final, - .finup = crc32_finup_arch, - .digest = crc32_digest_arch, - .descsize = sizeof(u32), - .digestsize = CHKSUM_DIGEST_SIZE, - - .base.cra_name = "crc32", - .base.cra_driver_name = "crc32-" __stringify(ARCH), - .base.cra_priority = 150, - .base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY, - .base.cra_blocksize = CHKSUM_BLOCK_SIZE, - .base.cra_ctxsize = sizeof(u32), - .base.cra_module = THIS_MODULE, - .base.cra_init = crc32_cra_init, -}}; - -static int num_algs; +}; static int __init crc32_mod_init(void) { - /* register the arch flavor only if it differs from the generic one */ - num_algs = 1 + ((crc32_optimizations() & CRC32_LE_OPTIMIZATION) != 0); - - return crypto_register_shashes(algs, num_algs); + return crypto_register_shash(&alg); } static void __exit crc32_mod_fini(void) { - crypto_unregister_shashes(algs, num_algs); + crypto_unregister_shash(&alg); } module_init(crc32_mod_init); @@ -179,4 +127,3 @@ MODULE_AUTHOR("Alexander Boyko <alexander_boyko@xyratex.com>"); MODULE_DESCRIPTION("CRC32 calculations wrapper for lib/crc32"); MODULE_LICENSE("GPL"); MODULE_ALIAS_CRYPTO("crc32"); -MODULE_ALIAS_CRYPTO("crc32-generic"); |