From patchwork Tue Jan 24 15:40:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pierre Gondois X-Patchwork-Id: 13114316 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 C1F04C38142 for ; Tue, 24 Jan 2023 15:42:20 +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=bHexwyQkeii2+aknlx/fmgxP3gWwfmgGI5tkZQUHxXQ=; b=lsbDuGI5S9vMdx 7Lrn+kL0DgzWTkAKXVFuWFe88zpWMc9qhKCdjgAXuZ7pc8XOFJM+/oCbpwbj8ff22KsqLYzDYBoDL toPGTZk86yAAVZtEfOpWjmFp6CvVHxaa1mpLLvh+1L0LPvxT6uCtjhIxbI8ebQhTN+gkqqNyg4GBK Xvb3JijS40dadRs56M0JHcM8GpcIBw0earnY/djb1bJv/lcSP53S98I7P6vEIeZtJl7ZIIhogMDoy 9TZ1xOzOlLwGbMeFvE4gz6VFZ/lX18H3IegBsfGRrTNUHdpqe9aRDucEtlojGOREhchG42kF6norU eq8GpvorCTmlFbUpovBg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pKLQH-004ZgR-L8; Tue, 24 Jan 2023 15:41:21 +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 1pKLQE-004Zes-Fq for linux-arm-kernel@lists.infradead.org; Tue, 24 Jan 2023 15:41:20 +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 33A0BC14; Tue, 24 Jan 2023 07:41:57 -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 01B003F5A1; Tue, 24 Jan 2023 07:41:12 -0800 (PST) From: Pierre Gondois To: linux-kernel@vger.kernel.org Cc: Geert Uytterhoeven , Conor Dooley , Dan Carpenter , Pierre Gondois , kernel test robot , Catalin Marinas , Will Deacon , Greg Kroah-Hartman , "Rafael J. Wysocki" , Sudeep Holla , Palmer Dabbelt , Oliver Upton , Akihiko Odaki , Gavin Shan , Jeremy Linton , linux-arm-kernel@lists.infradead.org Subject: [PATCH -next v2 1/3] cacheinfo: Initialize variables in fetch_cache_info() Date: Tue, 24 Jan 2023 16:40:46 +0100 Message-Id: <20230124154053.355376-2-pierre.gondois@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230124154053.355376-1-pierre.gondois@arm.com> References: <20230124154053.355376-1-pierre.gondois@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230124_074118_593154_43BD27B2 X-CRM114-Status: GOOD ( 10.47 ) 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 Set potentially uninitialized variables to 0. This is particularly relevant when CONFIG_ACPI_PPTT is not set. Reported-by: kernel test robot Link: https://lore.kernel.org/all/202301052307.JYt1GWaJ-lkp@intel.com/ Reported-by: Dan Carpenter Link: https://lore.kernel.org/all/Y86iruJPuwNN7rZw@kili/ Fixes: 5944ce092b97 ("arch_topology: Build cacheinfo from primary CPU") Signed-off-by: Pierre Gondois Reviewed-by: Conor Dooley --- drivers/base/cacheinfo.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/base/cacheinfo.c b/drivers/base/cacheinfo.c index 418a18acc8f9..f6573c335f4c 100644 --- a/drivers/base/cacheinfo.c +++ b/drivers/base/cacheinfo.c @@ -424,7 +424,7 @@ int allocate_cache_info(int cpu) int fetch_cache_info(unsigned int cpu) { struct cpu_cacheinfo *this_cpu_ci; - unsigned int levels, split_levels; + unsigned int levels = 0, split_levels = 0; int ret; if (acpi_disabled) {