From patchwork Sat Dec 7 19:57:45 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Biggers X-Patchwork-Id: 13898378 X-Patchwork-Delegate: herbert@gondor.apana.org.au Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2FF91153573 for ; Sat, 7 Dec 2024 19:58:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733601513; cv=none; b=fO+oLp+oNIgv+d46sU0orPp8mURbmD5a8lQXUWMmAg430XBdlfyRPcmIan/su/SpBZpsEf2Z/D02vkSWqRYQHE3Klht+2Tn5vkZpDrnTpkcaheqNdz/Ranpk0PfkKyVpRCjNY5Qg7bS4GbiiQAyYHjKVJ4QOSc371GMsaTVnQrI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733601513; c=relaxed/simple; bh=VUa1mmLsSCRwI64/KwV+wAc3rjy9YU3dBQo80ZMq2TM=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=YvmQv6ptZyi+4dHlg3hhgoQ46xfzPA44soAW+PENG/c9V5lUFMVetzUdR+Jj2ra3siS6NjnyKF1NIDFgf/vDYKugeiAjDsAJkitcmkXBOEh5ZZqCinsxAucCqIMENxkezLNsc0tsHYSrlfKYD9hbuBIiXaOo7ycKLhZgmaEoWEM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=klK/72BZ; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="klK/72BZ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 99953C4CEDD for ; Sat, 7 Dec 2024 19:58:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1733601512; bh=VUa1mmLsSCRwI64/KwV+wAc3rjy9YU3dBQo80ZMq2TM=; h=From:To:Subject:Date:In-Reply-To:References:From; b=klK/72BZDm4CerH61JJbXqD6+eC7TNaQBwrlyw/xX0/Ox+AL9Dpef4/VNkRzFb65C IgUNJmNzd0Ld2aPLKMrpj8N3VeUTcIo2DdNYb+HQu5XMi6NRm4URQUcSHR2+STxRM9 OdrOuOCvrXVzeioadWCdgkRQUV2cZd41SWlZalv9fmNaN4ClXcKzLnVq1poyvuJrxi WID+O+QJjX+YfBax264dKeAMpTob0IdqNlyfyaF1W9tt9csPvM2LOlZC8X0yOltx+8 TWwh1uIL4JIfMDMoBkQrili4vSutAmgxseJ8qTTw3vSK6iQ11uQO9ryZW7g+eEY8aG pfDz2cdsarMyw== From: Eric Biggers To: linux-crypto@vger.kernel.org Subject: [PATCH 1/8] crypto: anubis - stop using cra_alignmask Date: Sat, 7 Dec 2024 11:57:45 -0800 Message-ID: <20241207195752.87654-2-ebiggers@kernel.org> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20241207195752.87654-1-ebiggers@kernel.org> References: <20241207195752.87654-1-ebiggers@kernel.org> Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Eric Biggers Instead of specifying a nonzero alignmask, use the unaligned access helpers. This eliminates unnecessary alignment operations on most CPUs, which can handle unaligned accesses efficiently, and brings us a step closer to eventually removing support for the alignmask field. Signed-off-by: Eric Biggers --- crypto/anubis.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/crypto/anubis.c b/crypto/anubis.c index 9f0cf61bbc6e2..886e7c9136886 100644 --- a/crypto/anubis.c +++ b/crypto/anubis.c @@ -31,11 +31,11 @@ #include #include #include #include -#include +#include #include #define ANUBIS_MIN_KEY_SIZE 16 #define ANUBIS_MAX_KEY_SIZE 40 #define ANUBIS_BLOCK_SIZE 16 @@ -461,11 +461,10 @@ static const u32 rc[] = { static int anubis_setkey(struct crypto_tfm *tfm, const u8 *in_key, unsigned int key_len) { struct anubis_ctx *ctx = crypto_tfm_ctx(tfm); - const __be32 *key = (const __be32 *)in_key; int N, R, i, r; u32 kappa[ANUBIS_MAX_N]; u32 inter[ANUBIS_MAX_N]; switch (key_len) { @@ -480,11 +479,11 @@ static int anubis_setkey(struct crypto_tfm *tfm, const u8 *in_key, N = ctx->key_len >> 5; ctx->R = R = 8 + N; /* * map cipher key to initial key state (mu): */ for (i = 0; i < N; i++) - kappa[i] = be32_to_cpu(key[i]); + kappa[i] = get_unaligned_be32(&in_key[4 * i]); /* * generate R + 1 round keys: */ for (r = 0; r <= R; r++) { @@ -568,24 +567,22 @@ static int anubis_setkey(struct crypto_tfm *tfm, const u8 *in_key, return 0; } static void anubis_crypt(u32 roundKey[ANUBIS_MAX_ROUNDS + 1][4], - u8 *ciphertext, const u8 *plaintext, const int R) + u8 *dst, const u8 *src, const int R) { - const __be32 *src = (const __be32 *)plaintext; - __be32 *dst = (__be32 *)ciphertext; int i, r; u32 state[4]; u32 inter[4]; /* * map plaintext block to cipher state (mu) * and add initial round key (sigma[K^0]): */ for (i = 0; i < 4; i++) - state[i] = be32_to_cpu(src[i]) ^ roundKey[0][i]; + state[i] = get_unaligned_be32(&src[4 * i]) ^ roundKey[0][i]; /* * R - 1 full rounds: */ @@ -652,11 +649,11 @@ static void anubis_crypt(u32 roundKey[ANUBIS_MAX_ROUNDS + 1][4], /* * map cipher state to ciphertext block (mu^{-1}): */ for (i = 0; i < 4; i++) - dst[i] = cpu_to_be32(inter[i]); + put_unaligned_be32(inter[i], &dst[4 * i]); } static void anubis_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) { struct anubis_ctx *ctx = crypto_tfm_ctx(tfm); @@ -673,11 +670,10 @@ static struct crypto_alg anubis_alg = { .cra_name = "anubis", .cra_driver_name = "anubis-generic", .cra_flags = CRYPTO_ALG_TYPE_CIPHER, .cra_blocksize = ANUBIS_BLOCK_SIZE, .cra_ctxsize = sizeof (struct anubis_ctx), - .cra_alignmask = 3, .cra_module = THIS_MODULE, .cra_u = { .cipher = { .cia_min_keysize = ANUBIS_MIN_KEY_SIZE, .cia_max_keysize = ANUBIS_MAX_KEY_SIZE, .cia_setkey = anubis_setkey,