From patchwork Tue Jan 24 15:40:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pierre Gondois X-Patchwork-Id: 13114315 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 00DE3C54EAA for ; Tue, 24 Jan 2023 15:42:10 +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: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:In-Reply-To:References: List-Owner; bh=wydyZ2yP8Y50AEN0bwxZAfAuLMZFObYpXX57vmtB11Y=; b=qWZZqpvMoHEuak uD6ZzehhCbsUk9zqsJFLFbGCAK1vH4wg5HOdKugWjEt5LJGF1/EI/Z0ZfQtai1K0mYaqlRXGdUcRW Wc9tmiio/WKPfarIQ4e4X4dRpHZqtAUjDfK+xU7/NbQv6TolBjQshvk3MO0wUOT3ydJqU/Qkut5YP 5VliOhB8z3QU+s6AMkJcPMYbIj0fRk7yEAXfsp6CvB8d5FfjXUkz1qZD18uAtC0b9WaAmBKkiOmdB UDJaH5qNqBZRoQnp+Ng4UdImN+xJqaQDg6MAYwv1w5fR29IEbK2mMSuUOznnuq7QOjF9qZu6rt00t lL9ef9AKqO+sUzoRRl9g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pKLQ7-004Zc1-DP; Tue, 24 Jan 2023 15:41:11 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pKLQ4-004Zaz-I3 for linux-arm-kernel@lists.infradead.org; Tue, 24 Jan 2023 15:41:10 +0000 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 3D60B4B3; Tue, 24 Jan 2023 07:41:49 -0800 (PST) Received: from cam-smtp0.cambridge.arm.com (pierre123.nice.arm.com [10.34.100.128]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 4789A3F5A1; Tue, 24 Jan 2023 07:41:05 -0800 (PST) From: Pierre Gondois To: linux-kernel@vger.kernel.org Cc: Geert Uytterhoeven , Conor Dooley , Dan Carpenter , Pierre Gondois , Catalin Marinas , Will Deacon , Greg Kroah-Hartman , "Rafael J. Wysocki" , Sudeep Holla , Jeremy Linton , Akihiko Odaki , Palmer Dabbelt , Gavin Shan , linux-arm-kernel@lists.infradead.org Subject: [PATCH -next v2 0/3] cacheinfo: Fix misbehaviours around init_cache_level() Date: Tue, 24 Jan 2023 16:40:45 +0100 Message-Id: <20230124154053.355376-1-pierre.gondois@arm.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230124_074108_668588_EB66595F X-CRM114-Status: UNSURE ( 7.74 ) X-CRM114-Notice: Please train this message. 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 v2: https://lore.kernel.org/all/20230124123450.321852-1-pierre.gondois@arm.com/ - Split initial patch in 3. - Add links to static-analysis reports. Some cases were not correctly evaluated when updating init_cache_level()'s prototype, in particular if CONFIG_ACPI_PPTT is not defined. Fix them. The initial diagnostic was done thanks to: - the kernel test robot Link: https://lore.kernel.org/all/202301052307.JYt1GWaJ-lkp@intel.com/ - Dan Carpenter Link: https://lore.kernel.org/all/Y86iruJPuwNN7rZw@kili/ Pierre Gondois (3): cacheinfo: Initialize variables in fetch_cache_info() cacheinfo: Make default acpi_get_cache_info() return an error cacheinfo: Remove unused check in init_cache_level() arch/arm64/kernel/cacheinfo.c | 5 +---- drivers/base/cacheinfo.c | 2 +- include/linux/cacheinfo.h | 2 +- 3 files changed, 3 insertions(+), 6 deletions(-)