From: LABBE Corentin Subject: [PATCH 2/8] crypto: niagara: Use precalculated hash from headers Date: Mon, 12 Oct 2015 18:53:40 +0200 Message-ID: <1444668826-6531-3-git-send-email-clabbe.montjoie@gmail.com> References: <1444668826-6531-1-git-send-email-clabbe.montjoie@gmail.com> Cc: linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org, LABBE Corentin To: herbert@gondor.apana.org.au, davem@davemloft.net, thomas.lendacky@amd.com, geert+renesas@glider.be, ulf.hansson@linaro.org, wsa@the-dreams.de, keescook@chromium.org, maxime.ripard@free-electrons.com Return-path: In-Reply-To: <1444668826-6531-1-git-send-email-clabbe.montjoie@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-crypto.vger.kernel.org Precalculated hash for empty message are now present in hash headers. This patch just use them. Signed-off-by: LABBE Corentin --- drivers/crypto/n2_core.c | 33 ++++++--------------------------- 1 file changed, 6 insertions(+), 27 deletions(-) diff --git a/drivers/crypto/n2_core.c b/drivers/crypto/n2_core.c index 2e8dab9..8ea6c32 100644 --- a/drivers/crypto/n2_core.c +++ b/drivers/crypto/n2_core.c @@ -241,7 +241,7 @@ static inline bool n2_should_run_async(struct spu_queue *qp, int this_len) struct n2_ahash_alg { struct list_head entry; - const char *hash_zero; + const u8 *hash_zero; const u32 *hash_init; u8 hw_op_hashsz; u8 digest_size; @@ -1267,7 +1267,7 @@ static LIST_HEAD(cipher_algs); struct n2_hash_tmpl { const char *name; - const char *hash_zero; + const u8 *hash_zero; const u32 *hash_init; u8 hw_op_hashsz; u8 digest_size; @@ -1276,40 +1276,19 @@ struct n2_hash_tmpl { u8 hmac_type; }; -static const char md5_zero[MD5_DIGEST_SIZE] = { - 0xd4, 0x1d, 0x8c, 0xd9, 0x8f, 0x00, 0xb2, 0x04, - 0xe9, 0x80, 0x09, 0x98, 0xec, 0xf8, 0x42, 0x7e, -}; static const u32 md5_init[MD5_HASH_WORDS] = { cpu_to_le32(MD5_H0), cpu_to_le32(MD5_H1), cpu_to_le32(MD5_H2), cpu_to_le32(MD5_H3), }; -static const char sha1_zero[SHA1_DIGEST_SIZE] = { - 0xda, 0x39, 0xa3, 0xee, 0x5e, 0x6b, 0x4b, 0x0d, 0x32, - 0x55, 0xbf, 0xef, 0x95, 0x60, 0x18, 0x90, 0xaf, 0xd8, - 0x07, 0x09 -}; static const u32 sha1_init[SHA1_DIGEST_SIZE / 4] = { SHA1_H0, SHA1_H1, SHA1_H2, SHA1_H3, SHA1_H4, }; -static const char sha256_zero[SHA256_DIGEST_SIZE] = { - 0xe3, 0xb0, 0xc4, 0x42, 0x98, 0xfc, 0x1c, 0x14, 0x9a, - 0xfb, 0xf4, 0xc8, 0x99, 0x6f, 0xb9, 0x24, 0x27, 0xae, - 0x41, 0xe4, 0x64, 0x9b, 0x93, 0x4c, 0xa4, 0x95, 0x99, - 0x1b, 0x78, 0x52, 0xb8, 0x55 -}; static const u32 sha256_init[SHA256_DIGEST_SIZE / 4] = { SHA256_H0, SHA256_H1, SHA256_H2, SHA256_H3, SHA256_H4, SHA256_H5, SHA256_H6, SHA256_H7, }; -static const char sha224_zero[SHA224_DIGEST_SIZE] = { - 0xd1, 0x4a, 0x02, 0x8c, 0x2a, 0x3a, 0x2b, 0xc9, 0x47, - 0x61, 0x02, 0xbb, 0x28, 0x82, 0x34, 0xc4, 0x15, 0xa2, - 0xb0, 0x1f, 0x82, 0x8e, 0xa6, 0x2a, 0xc5, 0xb3, 0xe4, - 0x2f -}; static const u32 sha224_init[SHA256_DIGEST_SIZE / 4] = { SHA224_H0, SHA224_H1, SHA224_H2, SHA224_H3, SHA224_H4, SHA224_H5, SHA224_H6, SHA224_H7, @@ -1317,7 +1296,7 @@ static const u32 sha224_init[SHA256_DIGEST_SIZE / 4] = { static const struct n2_hash_tmpl hash_tmpls[] = { { .name = "md5", - .hash_zero = md5_zero, + .hash_zero = md5_zero_message_hash, .hash_init = md5_init, .auth_type = AUTH_TYPE_MD5, .hmac_type = AUTH_TYPE_HMAC_MD5, @@ -1325,7 +1304,7 @@ static const struct n2_hash_tmpl hash_tmpls[] = { .digest_size = MD5_DIGEST_SIZE, .block_size = MD5_HMAC_BLOCK_SIZE }, { .name = "sha1", - .hash_zero = sha1_zero, + .hash_zero = sha1_zero_message_hash, .hash_init = sha1_init, .auth_type = AUTH_TYPE_SHA1, .hmac_type = AUTH_TYPE_HMAC_SHA1, @@ -1333,7 +1312,7 @@ static const struct n2_hash_tmpl hash_tmpls[] = { .digest_size = SHA1_DIGEST_SIZE, .block_size = SHA1_BLOCK_SIZE }, { .name = "sha256", - .hash_zero = sha256_zero, + .hash_zero = sha256_zero_message_hash, .hash_init = sha256_init, .auth_type = AUTH_TYPE_SHA256, .hmac_type = AUTH_TYPE_HMAC_SHA256, @@ -1341,7 +1320,7 @@ static const struct n2_hash_tmpl hash_tmpls[] = { .digest_size = SHA256_DIGEST_SIZE, .block_size = SHA256_BLOCK_SIZE }, { .name = "sha224", - .hash_zero = sha224_zero, + .hash_zero = sha224_zero_message_hash, .hash_init = sha224_init, .auth_type = AUTH_TYPE_SHA256, .hmac_type = AUTH_TYPE_RESERVED, -- 2.4.9