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 756DAC369CB for ; Sat, 26 Apr 2025 06:57:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ZH73GuCkNgA7hko09gw0nTiJprdfKFf92OcRN5NHxe0=; b=GGyNXpCpWo2uwj VwS183uICD8bMq1089gMriZv55f6o4Dp1mj0JPmD/NBWXwQfK+IcPpGhD/AcelsPv5A7zV4eehnAK cMED+IzJJwXtVyh5dGqPkAeSqNV+h1YsMKVd2vqjx6uQ9dGBKfLAaj3jEAoav8HB7OUgpp59gqz5k u637mt1iuV00hJbAE9IOiY7xqeBZQbJFFNbfKQmKet2tVH3lhqHgp04mHZYbl6uKUJwLMXPyVQcpk UxORTdUAxFiBckEwYJoTRy9ES8OQ6bfYV8PyLwvZR/rUIIdGGuUMZO57l2tMFplIcC5CsMzEIC7GP GgEYqEwvDuSkSsa4tIkQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1u8ZTc-00000001cOf-39qs; Sat, 26 Apr 2025 06:57:28 +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 1u8ZO2-00000001aZZ-02El; Sat, 26 Apr 2025 06:51:43 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 589675C290D; Sat, 26 Apr 2025 06:49:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BB467C4CEEB; Sat, 26 Apr 2025 06:51:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1745650301; bh=tT7xHizMSeBb7KvPb+oh3/Ig96zej6yrrgzCapsgU4A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Lcsr7CT6H9XpOvDDW/C83SMoazZN1PRVMrqjz50cIA8jvmCUTp4hbSP/O3xWDYddd YZ0Ca/KBHzX6l/dLL8hxBuVetdDeZw6hpcDAZ35cOMN09OfSLYS0ycv+SBXsap2x9T nYa388Rpg9JgkkRno5+iBFIWegN8KKu5pmrB5RAANFCP2wNWIJ8cg4uo4UGSC1YmXX 3PyA35KurVu6MUW3T2QiEAViSJb9VVp4oVLGMgGOqouczpABo7xEpnV5PbcofFOcyJ SrKpi4wF6nF6wj1xAmeQyg10nxHDcqBjKLSEqqQyHj2PlfzO/+3AwSUvpeth2rtySI 75WbMMZSzlWhA== From: Eric Biggers To: linux-crypto@vger.kernel.org Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, sparclinux@vger.kernel.org, linux-s390@vger.kernel.org, x86@kernel.org, Ard Biesheuvel , "Jason A . Donenfeld " , Linus Torvalds Subject: [PATCH 03/13] crypto: arm64/sha256 - remove obsolete chunking logic Date: Fri, 25 Apr 2025 23:50:29 -0700 Message-ID: <20250426065041.1551914-4-ebiggers@kernel.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250426065041.1551914-1-ebiggers@kernel.org> References: <20250426065041.1551914-1-ebiggers@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250425_235142_088826_74677624 X-CRM114-Status: GOOD ( 11.44 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org From: Eric Biggers Since kernel-mode NEON sections are now preemptible on arm64, there is no longer any need to limit the length of them. Signed-off-by: Eric Biggers --- arch/arm64/crypto/sha256-glue.c | 19 ++----------------- 1 file changed, 2 insertions(+), 17 deletions(-) diff --git a/arch/arm64/crypto/sha256-glue.c b/arch/arm64/crypto/sha256-glue.c index 26f9fdfae87bf..d63ea82e1374e 100644 --- a/arch/arm64/crypto/sha256-glue.c +++ b/arch/arm64/crypto/sha256-glue.c @@ -84,27 +84,12 @@ static struct shash_alg algs[] = { { } }; static int sha256_update_neon(struct shash_desc *desc, const u8 *data, unsigned int len) { - do { - unsigned int chunk = len; - - /* - * Don't hog the CPU for the entire time it takes to process all - * input when running on a preemptible kernel, but process the - * data block by block instead. - */ - if (IS_ENABLED(CONFIG_PREEMPTION)) - chunk = SHA256_BLOCK_SIZE; - - chunk -= sha256_base_do_update_blocks(desc, data, chunk, - sha256_neon_transform); - data += chunk; - len -= chunk; - } while (len >= SHA256_BLOCK_SIZE); - return len; + return sha256_base_do_update_blocks(desc, data, len, + sha256_neon_transform); } static int sha256_finup_neon(struct shash_desc *desc, const u8 *data, unsigned int len, u8 *out) { -- 2.49.0 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv