diff options
Diffstat (limited to 'crypto/crc32c.c')
| -rw-r--r-- | crypto/crc32c.c | 66 |
1 files changed, 5 insertions, 61 deletions
diff --git a/crypto/crc32c.c b/crypto/crc32c.c index e5377898414a..1eff54dde2f7 100644 --- a/crypto/crc32c.c +++ b/crypto/crc32c.c @@ -85,15 +85,6 @@ static int chksum_update(struct shash_desc *desc, const u8 *data, { struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); - ctx->crc = crc32c_base(ctx->crc, data, length); - return 0; -} - -static int chksum_update_arch(struct shash_desc *desc, const u8 *data, - unsigned int length) -{ - struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); - ctx->crc = crc32c(ctx->crc, data, length); return 0; } @@ -108,13 +99,6 @@ static int chksum_final(struct shash_desc *desc, u8 *out) static int __chksum_finup(u32 *crcp, const u8 *data, unsigned int len, u8 *out) { - put_unaligned_le32(~crc32c_base(*crcp, data, len), out); - return 0; -} - -static int __chksum_finup_arch(u32 *crcp, const u8 *data, unsigned int len, - u8 *out) -{ put_unaligned_le32(~crc32c(*crcp, data, len), out); return 0; } @@ -127,14 +111,6 @@ static int chksum_finup(struct shash_desc *desc, const u8 *data, return __chksum_finup(&ctx->crc, data, len, out); } -static int chksum_finup_arch(struct shash_desc *desc, const u8 *data, - unsigned int len, u8 *out) -{ - struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); - - return __chksum_finup_arch(&ctx->crc, data, len, out); -} - static int chksum_digest(struct shash_desc *desc, const u8 *data, unsigned int length, u8 *out) { @@ -143,14 +119,6 @@ static int chksum_digest(struct shash_desc *desc, const u8 *data, return __chksum_finup(&mctx->key, data, length, out); } -static int chksum_digest_arch(struct shash_desc *desc, const u8 *data, - unsigned int length, u8 *out) -{ - struct chksum_ctx *mctx = crypto_shash_ctx(desc->tfm); - - return __chksum_finup_arch(&mctx->key, data, length, out); -} - static int crc32c_cra_init(struct crypto_tfm *tfm) { struct chksum_ctx *mctx = crypto_tfm_ctx(tfm); @@ -159,7 +127,7 @@ static int crc32c_cra_init(struct crypto_tfm *tfm) return 0; } -static struct shash_alg algs[] = {{ +static struct shash_alg alg = { .digestsize = CHKSUM_DIGEST_SIZE, .setkey = chksum_setkey, .init = chksum_init, @@ -170,46 +138,23 @@ static struct shash_alg algs[] = {{ .descsize = sizeof(struct chksum_desc_ctx), .base.cra_name = "crc32c", - .base.cra_driver_name = "crc32c-generic", + .base.cra_driver_name = "crc32c-lib", .base.cra_priority = 100, .base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY, .base.cra_blocksize = CHKSUM_BLOCK_SIZE, .base.cra_ctxsize = sizeof(struct chksum_ctx), .base.cra_module = THIS_MODULE, .base.cra_init = crc32c_cra_init, -}, { - .digestsize = CHKSUM_DIGEST_SIZE, - .setkey = chksum_setkey, - .init = chksum_init, - .update = chksum_update_arch, - .final = chksum_final, - .finup = chksum_finup_arch, - .digest = chksum_digest_arch, - .descsize = sizeof(struct chksum_desc_ctx), - - .base.cra_name = "crc32c", - .base.cra_driver_name = "crc32c-" __stringify(ARCH), - .base.cra_priority = 150, - .base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY, - .base.cra_blocksize = CHKSUM_BLOCK_SIZE, - .base.cra_ctxsize = sizeof(struct chksum_ctx), - .base.cra_module = THIS_MODULE, - .base.cra_init = crc32c_cra_init, -}}; - -static int num_algs; +}; static int __init crc32c_mod_init(void) { - /* register the arch flavor only if it differs from the generic one */ - num_algs = 1 + ((crc32_optimizations() & CRC32C_OPTIMIZATION) != 0); - - return crypto_register_shashes(algs, num_algs); + return crypto_register_shash(&alg); } static void __exit crc32c_mod_fini(void) { - crypto_unregister_shashes(algs, num_algs); + crypto_unregister_shash(&alg); } module_init(crc32c_mod_init); @@ -219,4 +164,3 @@ MODULE_AUTHOR("Clay Haapala <chaapala@cisco.com>"); MODULE_DESCRIPTION("CRC32c (Castagnoli) calculations wrapper for lib/crc32c"); MODULE_LICENSE("GPL"); MODULE_ALIAS_CRYPTO("crc32c"); -MODULE_ALIAS_CRYPTO("crc32c-generic"); |