From patchwork Fri Jan 10 14:54:12 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Brown X-Patchwork-Id: 198254 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.1 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8E81CC33CA3 for ; Fri, 10 Jan 2020 14:54:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5ABC42082E for ; Fri, 10 Jan 2020 14:54:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578668069; bh=8soFUltSYxNhU9DgIw0d+HJqTNgB32ofA77Yn6aW/lw=; h=From:To:Cc:Subject:Date:List-ID:From; b=Rx6+i5f5NpZ0hNu01cx5oVk8/HhR4znX5/VQfOQCQBSvaJkgo7IXQ9doDHqYC8FCX NPrqAOEReZki8Sj6Z4snPVsI23TJP19mVyfqtqgQrCNJeLHwfNtygMt6LP+JOiCbTt n7LiiN5Ng9dmktpBAhSSM9rO+pO2qp8qWgi6O078= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728174AbgAJOy2 (ORCPT ); Fri, 10 Jan 2020 09:54:28 -0500 Received: from foss.arm.com ([217.140.110.172]:45768 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728137AbgAJOy2 (ORCPT ); Fri, 10 Jan 2020 09:54:28 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id C647A30E; Fri, 10 Jan 2020 06:54:27 -0800 (PST) Received: from localhost (unknown [10.37.6.21]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 4AFA33F6C4; Fri, 10 Jan 2020 06:54:27 -0800 (PST) From: Mark Brown To: linux-arch@vger.kernel.org Cc: Richard Henderson , Borislav Petkov , linux-s390@vger.kernel.org, herbert@gondor.apana.org.au, x86@kernel.org, linux-crypto@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, Mark Brown Subject: [PATCH v2 00/10] Impveovements for random.h/archrandom.h Date: Fri, 10 Jan 2020 14:54:12 +0000 Message-Id: <20200110145422.49141-1-broonie@kernel.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org This is a resend of a series from Richard Henderson last posted back in November: https://lore.kernel.org/linux-arm-kernel/20191106141308.30535-1-rth@twiddle.net/ Back then Borislav said they looked good and asked if he should take them through the tip tree but things seem to have got lost since then. Original cover letter: During patch review for an addition of archrandom.h for arm64, it was suggeted that the arch_random_get_* functions should be marked __must_check. Which does sound like a good idea, since the by-reference integer output may be uninitialized when the boolean result is false. In addition, it turns out that arch_has_random() and arch_has_random_seed() are not used, and not easy to support for arm64. Rather than cobble something together that would not be testable, remove the interfaces against some future accidental use. In addition, I noticed a few other minor inconsistencies between the different architectures, e.g. powerpc isn't using bool. Change since v1: * Remove arch_has_random, arch_has_random_seed. Richard Henderson (10): x86: Remove arch_has_random, arch_has_random_seed powerpc: Remove arch_has_random, arch_has_random_seed s390: Remove arch_has_random, arch_has_random_seed linux/random.h: Remove arch_has_random, arch_has_random_seed linux/random.h: Use false with bool linux/random.h: Mark CONFIG_ARCH_RANDOM functions __must_check x86: Mark archrandom.h functions __must_check powerpc: Use bool in archrandom.h powerpc: Mark archrandom.h functions __must_check s390x: Mark archrandom.h functions __must_check arch/powerpc/include/asm/archrandom.h | 27 +++++++++----------------- arch/s390/include/asm/archrandom.h | 20 ++++--------------- arch/x86/include/asm/archrandom.h | 28 ++++++++++++--------------- include/linux/random.h | 24 ++++++++--------------- 4 files changed, 33 insertions(+), 66 deletions(-)