From patchwork Thu Mar 1 15:24:15 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sasha Levin X-Patchwork-Id: 130248 Delivered-To: patch@linaro.org Received: by 10.80.172.228 with SMTP id x91csp2941071edc; Thu, 1 Mar 2018 07:30:07 -0800 (PST) X-Google-Smtp-Source: AG47ELupCkL53WtF/5Cx80WxrWvrNnHzmAu5OE+6pEGMY+TNh5ejzT6J3RkWhArVcxqri1s3NWZ/ X-Received: by 10.99.125.69 with SMTP id m5mr1819439pgn.77.1519918207365; Thu, 01 Mar 2018 07:30:07 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1519918207; cv=none; d=google.com; s=arc-20160816; b=OxWz+NYAiYd3acqnqNlbnTgtWUPHbR7xxcA8mBo1ltEtxyWDw3RDrBOQ9npGp4v8ck TXHEb7MWcR0hRrILkRRLcfBBs0S2FI3JsewNBF6aNoU2ojpxbE39/QgdKyiiKFx2w5C7 3Ha9ujwnDIRzpgk816Gc/7xIlyn1wd6LiN6KHbNP53Bew8HYaiYULy0MWiJqtl7CnWfj 3pQJDq3ODftDjFKS1hrt8sqWLtxSdQ8/qizpUmSH8oxazXOq0+D70y8o0luyID0J5WmQ KQtZTSUjNm81IJeBDW5zr7ecFNA2xMGMWG8QnHr7QvX3O/V3XHWSj3nLYu4DFyXleKpU lKPQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:content-transfer-encoding :spamdiagnosticmetadata:spamdiagnosticoutput:content-language :accept-language:in-reply-to:references:message-id:date:thread-index :thread-topic:subject:cc:to:from:dkim-signature :arc-authentication-results; bh=rPf0Oatz1lQKZc4w0br46N6sA12dos1dMKnUFmh3lKo=; b=SJFz2VAextvnOe1DPq8mn9SKZDutfiZZwmqm4GZElxrYv3k80MLVO5je1ab5AAsO2w hS9HS+o7Qfw4+/zo9vfWPI/H4pXvSf7PYI7yleJvXDmaU4ng05JcNnLjI5XfUjU/Q5jy YBNcNdl5bH0IQG2HlZKtQnVM+269ELz+xDgRX8pwKYtOyk7UNTnb+6hv6x0Zw3hBO75N GGEuhYIV6RpcNs3m+DKLnpUAJglfHORBey1g4TDv9+ss3igTmCrE/3hFbizZoXeTGi93 y0gyLrl2GQnkA6l6td1UGb41Yf2oNafheR+X5d1xOBlyukl2fjKtpj+niZn2Tzzrxn9f Xkzg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@microsoft.com header.s=selector1 header.b=KPuFAs2w; spf=pass (google.com: best guess record for domain of stable-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=stable-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=microsoft.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id z7si2597209pgp.660.2018.03.01.07.30.06; Thu, 01 Mar 2018 07:30:07 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of stable-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=@microsoft.com header.s=selector1 header.b=KPuFAs2w; spf=pass (google.com: best guess record for domain of stable-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=stable-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=microsoft.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1032125AbeCAPaD (ORCPT + 10 others); Thu, 1 Mar 2018 10:30:03 -0500 Received: from mail-dm3nam03on0126.outbound.protection.outlook.com ([104.47.41.126]:51562 "EHLO NAM03-DM3-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1032212AbeCAP3q (ORCPT ); Thu, 1 Mar 2018 10:29:46 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=rPf0Oatz1lQKZc4w0br46N6sA12dos1dMKnUFmh3lKo=; b=KPuFAs2wm5TqNL25r8EG7e9g+lPrDdgpz4dGjIYLSRzXxN5lH10ZUTQ4Pteg/qt4r+6ZXUo9Vc3edCrePHmdxm0s8SnocIxIHCJqfJnDvCq+3a0M8BAT3CdEXSOJ/LJq5odVW5otM73wAgHWdXvANcUhzYX1zvEUkt9Y9K44vrc= Received: from DM5PR2101MB1032.namprd21.prod.outlook.com (52.132.128.13) by DM5PR2101MB0984.namprd21.prod.outlook.com (52.132.133.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.567.2; Thu, 1 Mar 2018 15:29:40 +0000 Received: from DM5PR2101MB1032.namprd21.prod.outlook.com ([fe80::8063:c68a:b210:7446]) by DM5PR2101MB1032.namprd21.prod.outlook.com ([fe80::8063:c68a:b210:7446%2]) with mapi id 15.20.0567.006; Thu, 1 Mar 2018 15:29:40 +0000 From: Sasha Levin To: "stable@vger.kernel.org" , "stable-commits@vger.kernel.org" CC: Arnd Bergmann , Michal Marek , Sasha Levin Subject: [added to the 4.1 stable tree] gcov: disable for COMPILE_TEST Thread-Topic: [added to the 4.1 stable tree] gcov: disable for COMPILE_TEST Thread-Index: AQHTsXFb3oPE0H1f9keojiqjoWMRQQ== Date: Thu, 1 Mar 2018 15:24:15 +0000 Message-ID: <20180301152116.1486-173-alexander.levin@microsoft.com> References: <20180301152116.1486-1-alexander.levin@microsoft.com> In-Reply-To: <20180301152116.1486-1-alexander.levin@microsoft.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [52.168.54.252] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1; DM5PR2101MB0984; 6:7/HiHBYkst5Q4QhxQIpqAqGbBuyZeomOXmByU/nB6svbkMYL28oFKjBWbZIQuLv1Izby20wQdJRB86aGrPz8maJl2Gdt6RQcgDqshXzS+cc8pig5NTna0ClHAkE2fcVDfaO/C/DAqGjD91aGf9b784S+NF40pebUVoU9O6OcdoZDWfRe1MeerMfbkn1HijA5QfY1slplCfrk1CnhphnkjR46juFiQU87bdsUrQ1+JtL/fO6mxqiK67eYo0p20wsUJX343rS92BEu+w+8xD2m0X2kSdldGRHEgxZO+HBod0ZiQRdAHsgIoZef+fDdT71SMtRdSSRnx4DUHTikayr2osiZyA3nFFvkZawcICBnbRoJHStt9y5n8UnkgdJI8oFX; 5:P8ROM+PNIMCvl+RJ8HETAdYWbMOuOYP7d98MVpGW/2vIQcMlM0Gfgw3zhLGGhRndHxYyDk9hp1LDNpVd7wCz4c4DDeP7DM3C3y5FeFVGHhsAr8SDOwMPVUZbUgVAAgdfSflNJF/wFDBMhAzbTMre2lEnnwp7cgDk7QXRcX2ZlJI=; 24:ybtHEkcuZ7z02vKGp4nF2Rsf64gf2vhOTMb/dbOGqBsZiF7/9Vi1UD7AmAF5RasmEVZ0XCy7aRD+CVtT7La7MuDyDiZnZuP5fjxe9j044YQ=; 7:umnAZsblJM2NlWYi1DV/D/xWS8X7ntkAofMPdHfNcQnbuoCQi4/GwQPHIveep1CxCKB3MT8LGIvmXv05E9/KqIZWgrmX9CH0I2HAjUIVio5EEtcOggqEnwWu77CBN7Tbr/KHJ0LgTAl1qrlt4c5X3/Kz1gi27MZGiXny4ex9puFd2xvND42h95xt8DFkxMhQvOTsdY9Gsp6DHwkP5khL/9/xaSdTsjbGBqubMddXUl85goYzBg/WXZnHIYGOU8TZ x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 94292915-9e22-4e48-9275-08d57f893ff8 x-microsoft-antispam: UriScan:; BCL:0; PCL:0; RULEID:(7020095)(4652020)(4534165)(4627221)(201703031133081)(201702281549075)(48565401081)(5600026)(4604075)(3008032)(2017052603307)(7193020); SRVR:DM5PR2101MB0984; x-ms-traffictypediagnostic: DM5PR2101MB0984: x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:(28532068793085)(89211679590171)(104084551191319); x-exchange-antispam-report-cfa-test: BCL:0; PCL:0; RULEID:(8211001083)(61425038)(6040501)(2401047)(5005006)(8121501046)(3002001)(93006095)(93001095)(10201501046)(3231220)(944501228)(52105095)(6055026)(61426038)(61427038)(6041288)(20161123564045)(20161123560045)(20161123558120)(20161123562045)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(6072148)(201708071742011); SRVR:DM5PR2101MB0984; BCL:0; PCL:0; RULEID:; SRVR:DM5PR2101MB0984; x-forefront-prvs: 05986C03E0 x-forefront-antispam-report: SFV:NSPM; SFS:(10019020)(39860400002)(366004)(39380400002)(376002)(396003)(346002)(189003)(199004)(68736007)(14454004)(6346003)(6116002)(26005)(1076002)(99286004)(4326008)(305945005)(186003)(86612001)(10290500003)(2906002)(97736004)(86362001)(107886003)(6666003)(66066001)(105586002)(3846002)(2900100001)(3660700001)(3280700002)(316002)(5660300001)(8676002)(8936002)(81166006)(81156014)(22452003)(36756003)(54906003)(10090500001)(76176011)(25786009)(6512007)(6486002)(110136005)(7736002)(478600001)(72206003)(106356001)(6506007)(2950100002)(2501003)(53936002)(5250100002)(6436002)(102836004)(22906009); DIR:OUT; SFP:1102; SCL:1; SRVR:DM5PR2101MB0984; H:DM5PR2101MB1032.namprd21.prod.outlook.com; FPR:; SPF:None; PTR:InfoNoRecords; MX:1; A:1; LANG:en; received-spf: None (protection.outlook.com: microsoft.com does not designate permitted sender hosts) authentication-results: spf=none (sender IP is ) smtp.mailfrom=Alexander.Levin@microsoft.com; x-microsoft-antispam-message-info: k6lZfu2deA167ZC7vi80oOY1bhqcOPX2ybUU/KGfdc2+e5m44MbExWpQcWihiLoYcnrbuiLSbYZnNpTfxyn5divshOO9s20Uf5vZiOqGcGBdk5H7bKfIkGcQQfZg/RTDj2W/QnFRfyHOk45KPyDisN08OCzoPNN295l/tf8ekgM= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: 94292915-9e22-4e48-9275-08d57f893ff8 X-MS-Exchange-CrossTenant-originalarrivaltime: 01 Mar 2018 15:24:15.6806 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR2101MB0984 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Arnd Bergmann This patch has been added to the 4.1 stable tree. If you have any objections, please let us know. -- 2.14.1 =============== [ Upstream commit cc622420798c4bcf093785d872525087a7798db9 ] Enabling gcov is counterproductive to compile testing: it significantly increases the kernel image size, compile time, and it produces lots of false positive "may be used uninitialized" warnings as the result of missed optimizations. This is in line with how UBSAN_SANITIZE_ALL and PROFILE_ALL_BRANCHES work, both of which have similar problems. With an ARM allmodconfig kernel, I see the build time drop from 283 minutes CPU time to 225 minutes, and the vmlinux size drops from 43MB to 26MB. Signed-off-by: Arnd Bergmann Acked-by: Peter Oberparleiter Signed-off-by: Michal Marek Signed-off-by: Sasha Levin --- kernel/gcov/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/gcov/Kconfig b/kernel/gcov/Kconfig index c92e44855ddd..1276aabaab55 100644 --- a/kernel/gcov/Kconfig +++ b/kernel/gcov/Kconfig @@ -37,6 +37,7 @@ config ARCH_HAS_GCOV_PROFILE_ALL config GCOV_PROFILE_ALL bool "Profile entire Kernel" + depends on !COMPILE_TEST depends on GCOV_KERNEL depends on ARCH_HAS_GCOV_PROFILE_ALL default n