From patchwork Fri Jan 25 08:49:14 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ard Biesheuvel X-Patchwork-Id: 156566 Delivered-To: patch@linaro.org Received: by 2002:a02:48:0:0:0:0:0 with SMTP id 69csp100506jaa; Fri, 25 Jan 2019 00:49:27 -0800 (PST) X-Google-Smtp-Source: ALg8bN7t4BNCdQVfweV51XtjkAx0MR0vL7Fq3PeQwkuExd26vDSWMjjDeqJn6daj7UhSAzkA7x8f X-Received: by 2002:a62:670f:: with SMTP id b15mr9990041pfc.212.1548406166972; Fri, 25 Jan 2019 00:49:26 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1548406166; cv=none; d=google.com; s=arc-20160816; b=fnUu8HOvX1ie8mMUs5BvcVdktnBCvS3FKIfgSOoTyaX19elJN35fDLGeGmwL/UjMNt frNL+GXmRchFWKf/l8avxb3YrZd0bsq4kVV6ek3vIKJG3FmAFLLl+1LJAjR3KJawkNhN OjDlZEPePSJlbRXj2gG0wMw2qBlBPNTMehIyuNXr9uUtdjbkzpSmgoza65Utna4fK4Wx AjdHGGQfu7hrkE5cfucX/NuGUsYqZ52ksC55vZYMHrzl66xjJxTLOTCsJCkhoXyzMO5t BFlTD3nLTA/kRTy+BwUwvLX0CAfcs9vSQlH3hypFySXlbMB2wHQv54ZRwGdiZLJUfvmc EAwQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:references:in-reply-to:message-id:date :subject:cc:to:from:dkim-signature; bh=3i4VSVBNJKNuInAMRTH6x98wcOlfnlNxdkcXRyELG3M=; b=vcz2GwsJ1oZ1SrzrNHy8jSlsoDP3AI9fHuh3oym9eYZNKjMUrZfrXhHcoerKId9btp 0mFfsbLwj5bU9os2XBg+nTcJ86BFxHT4dI4i4m+lcGe+/gFtYO3A3sBKKdNfGRB9dJJY TJGyT2fEBESVW0O8IinNV9J7GaGznzCHhNU1tRKhKb1I+pkuPQElssPk/ze3omPz0oDu +d5QmrLNu07ToPl0vgYk/QAbTuS3ipkxlFz5S4bx+ItvHqj7LB50iZPY1JFp4gVd5Y5M VwI8wYTj+eFq3P47nE2nDD2+nnQ5lYwK6uk5za5QgfzSn4HAFui6QdT91IKbc3UK5+UD dMmg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=WOkV3jNP; spf=pass (google.com: best guess record for domain of linux-crypto-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-crypto-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id e13si25448166pgh.251.2019.01.25.00.49.26; Fri, 25 Jan 2019 00:49:26 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-crypto-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=WOkV3jNP; spf=pass (google.com: best guess record for domain of linux-crypto-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-crypto-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726802AbfAYIt0 (ORCPT + 3 others); Fri, 25 Jan 2019 03:49:26 -0500 Received: from mail-wm1-f68.google.com ([209.85.128.68]:52257 "EHLO mail-wm1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726669AbfAYIt0 (ORCPT ); Fri, 25 Jan 2019 03:49:26 -0500 Received: by mail-wm1-f68.google.com with SMTP id m1so5926616wml.2 for ; Fri, 25 Jan 2019 00:49:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=3i4VSVBNJKNuInAMRTH6x98wcOlfnlNxdkcXRyELG3M=; b=WOkV3jNPR1KFdSATKSBt83Av+J5wm3/Fl7piyMS0+79fo+majgdNlXYpBLPEBOjs3f vJm6vW4JmUFftUoNnMGe5FbZym5jkf2NiN6H/butQcBl/U7UElpctMFACibJpfmBJn7L uMMRpCu3uvFsNAr/os/SvoX0EGx/RFxdyDrjc= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=3i4VSVBNJKNuInAMRTH6x98wcOlfnlNxdkcXRyELG3M=; b=OhdolyTZDvhTiL7zB3Oa95rMJ6ASmTbH96MZsZPVpUf314vexMWghIkUxyz8VeWWPt 3y5LtShc8SkDaFMiXyNCylsvLEFQhzJjtuszK8JsuS9jOigR9t0S3XFlW2dU+DSnWfzZ KZvKMC8qhgRUWP+j0DBDMlOcOvDPRCG/BNNcTcmiOEW/DfCJvSf/loeRQpSvd/KiKJ+m LwwPszYxRIb2WLoeKcGdXhVh38Z+i838vzxdUjxHmpIXJHUPVFECfVFJ3I3PufzR8Ql0 +S3TNOJoTy+YJO25qm8N+bOPBi9an4ookbAWvJr9Ps6YAvpnE2gSM9eIy/9EB1YBWfL2 iSwA== X-Gm-Message-State: AJcUukdm9d60RU6TcJGXo9K7CMWDzo8qnU2jjgBvO3PXU3KuCryZIKzZ BxL2RHd6ekfXW8hOn5+fPCoINef3pdCP6g== X-Received: by 2002:a1c:570d:: with SMTP id l13mr6050823wmb.139.1548406164011; Fri, 25 Jan 2019 00:49:24 -0800 (PST) Received: from dogfood.home ([2a01:cb1d:112:6f00:bcd4:806e:230a:673e]) by smtp.gmail.com with ESMTPSA id 125sm112594574wmm.26.2019.01.25.00.49.22 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 25 Jan 2019 00:49:23 -0800 (PST) From: Ard Biesheuvel To: linux-crypto@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, herbert@gondor.apana.org.au, ebiggers@kernel.org, Ard Biesheuvel Subject: [PATCH v2 3/4] crypto: arm/crct10dif - remove dead code Date: Fri, 25 Jan 2019 09:49:14 +0100 Message-Id: <20190125084915.25411-4-ard.biesheuvel@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190125084915.25411-1-ard.biesheuvel@linaro.org> References: <20190125084915.25411-1-ard.biesheuvel@linaro.org> Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Remove some code that is no longer called now that we make sure never to invoke the SIMD routine with less that 16 bytes of input. Signed-off-by: Ard Biesheuvel --- arch/arm/crypto/crct10dif-ce-core.S | 13 ------------- 1 file changed, 13 deletions(-) -- 2.17.1 diff --git a/arch/arm/crypto/crct10dif-ce-core.S b/arch/arm/crypto/crct10dif-ce-core.S index 16019b5961e7..d058fad423c2 100644 --- a/arch/arm/crypto/crct10dif-ce-core.S +++ b/arch/arm/crypto/crct10dif-ce-core.S @@ -342,7 +342,6 @@ CPU_LE( vrev64.8 q7, q7 ) cmp arg3, #16 beq _128_done // exactly 16 left - blt _less_than_16_left // now if there is, load the constants vldr d20, rk1 @@ -353,18 +352,6 @@ CPU_LE( vrev64.8 q7, q7 ) addlt arg3, arg3, #16 blt _get_last_two_regs b _16B_reduction_loop - -_less_than_16_left: - // shl r9, 4 - adr ip, tbl_shf_table + 16 - sub ip, ip, arg3 - vld1.8 {q0}, [ip] - vmov.i8 q9, #0x80 - veor.8 q0, q0, q9 - vtbl.8 d18, {d14-d15}, d0 - vtbl.8 d15, {d14-d15}, d1 - vmov d14, d18 - b _128_done ENDPROC(crc_t10dif_pmull) // precomputed constants