From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 99A1EC61DB2 for ; Wed, 11 Jun 2025 03:24:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=l6L5kLiMXVSLesfMswCHaMgooGTQlEM//lxdnBmxha8=; b=iFpaQNeG/p9aQRshXBhZ556gJ5 Dk1H18foCnkmZ3rtI31doXwfYje89S1z+9C+2AHkd9QC/bHjUJQZkba5lC94O4R4JOO8hCPLIy32s iZhvSuVcw0/YjTgMfvsg1J+KnarG90bI7RW4zWFdmouV0dGJRqyWPbWrR+7FsiImw5VXeIrf5FtU1 yctjSn5gJ1leCnZrDtGzxJsfruCEJRdf1qxYdRaghMlnJb8NtYBy0bbeMyygo6gIdKoYY8upi7q8e QnG1MEH0NfVjPF+9LhUAa/S5oGhvEBmbAyeki0IuTvzDNfx+HQkEMGOSR1Yhhla6SsASx+NIE4wmH Zec2heuw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uPC4I-00000008jUT-0AIE; Wed, 11 Jun 2025 03:24:02 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uPAxT-00000008cNv-3boc; Wed, 11 Jun 2025 02:12:56 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 89B865C58D7; Wed, 11 Jun 2025 02:10:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B1C4BC4CEF5; Wed, 11 Jun 2025 02:12:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1749607975; bh=VjWSxk5rTs8+2YM7TLECuuSPNRzmvS+Q0pNNnwsrogA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PszQ96pbYZGKnEs0HNc9JVgtTPdRXqHfZiholh1Lrl6KG0nU/bEhzCLeuGaJzXEyv xYis4SIZ8EKhSzUL5Eipysmh9VNU6LRnswFmYQbcThAx+pHzRTQaRN9Y8bCqBi07iG hLPUZblCbsroMPDzWbjZDaghLqqwkv3/KM2RyblH1zjlDh89v9Icbw/Lz615XwZWXl Px2hER0r9yV9PyvvgPVjk6U7JatTo1JpGhRcd9AbIuldbBL1FTIme7DvenSzaA8o1W LmC2MV/s4kaJe9uAqXZBLM8yfekmfgsdo9J3ub9lBMAhSoeWZIhL0aGoClnRNKynd1 OJ9mKE5+J+vYg== From: Eric Biggers To: linux-crypto@vger.kernel.org Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, x86@kernel.org, Ard Biesheuvel , "Jason A . Donenfeld " , Linus Torvalds Subject: [PATCH 06/16] crypto: riscv/sha512 - stop depending on sha512_generic_block_fn Date: Tue, 10 Jun 2025 19:09:13 -0700 Message-ID: <20250611020923.1482701-7-ebiggers@kernel.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250611020923.1482701-1-ebiggers@kernel.org> References: <20250611020923.1482701-1-ebiggers@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250610_191255_940274_9ADF45F4 X-CRM114-Status: GOOD ( 13.64 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Eric Biggers sha512_generic_block_fn() will no longer be available when the SHA-512 support in the old-school crypto API is changed to just wrap the SHA-512 library. Replace the use of sha512_generic_block_fn() in sha512-riscv64-glue.c with temporary code that uses the library's __sha512_update(). This is just a temporary workaround to keep the kernel building and functional at each commit; this code gets superseded when the RISC-V optimized SHA-512 is migrated to lib/crypto/ anyway. Signed-off-by: Eric Biggers --- arch/riscv/crypto/Kconfig | 1 + arch/riscv/crypto/sha512-riscv64-glue.c | 8 +++++++- 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/arch/riscv/crypto/Kconfig b/arch/riscv/crypto/Kconfig index cd9b776602f89..53e4e1eacf554 100644 --- a/arch/riscv/crypto/Kconfig +++ b/arch/riscv/crypto/Kconfig @@ -29,10 +29,11 @@ config CRYPTO_GHASH_RISCV64 - Zvkg vector crypto extension config CRYPTO_SHA512_RISCV64 tristate "Hash functions: SHA-384 and SHA-512" depends on 64BIT && RISCV_ISA_V && TOOLCHAIN_HAS_VECTOR_CRYPTO + select CRYPTO_LIB_SHA512 select CRYPTO_SHA512 help SHA-384 and SHA-512 secure hash algorithm (FIPS 180) Architecture: riscv64 using: diff --git a/arch/riscv/crypto/sha512-riscv64-glue.c b/arch/riscv/crypto/sha512-riscv64-glue.c index 4634fca78ae24..b3dbc71de07b0 100644 --- a/arch/riscv/crypto/sha512-riscv64-glue.c +++ b/arch/riscv/crypto/sha512-riscv64-glue.c @@ -36,11 +36,17 @@ static void sha512_block(struct sha512_state *state, const u8 *data, if (crypto_simd_usable()) { kernel_vector_begin(); sha512_transform_zvknhb_zvkb(state, data, num_blocks); kernel_vector_end(); } else { - sha512_generic_block_fn(state, data, num_blocks); + struct __sha512_ctx ctx = {}; + + static_assert(sizeof(ctx.state) == sizeof(state->state)); + memcpy(&ctx.state, state->state, sizeof(ctx.state)); + __sha512_update(&ctx, data, + (size_t)num_blocks * SHA512_BLOCK_SIZE); + memcpy(state->state, &ctx.state, sizeof(state->state)); } } static int riscv64_sha512_update(struct shash_desc *desc, const u8 *data, unsigned int len) -- 2.49.0