Received: by 2002:a05:6a10:a852:0:0:0:0 with SMTP id d18csp818849pxy; Wed, 5 May 2021 14:56:25 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwfMWe1H/oh1wwIXiKnmemPr5ba44babl3JS+AW7+IK9AXKxuPASkhLX7+lJ37rpqfQBLH6 X-Received: by 2002:a17:906:5450:: with SMTP id d16mr883133ejp.274.1620251785259; Wed, 05 May 2021 14:56:25 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1620251785; cv=none; d=google.com; s=arc-20160816; b=KBaEnG048WiDaD2iiIntAocGhLl1BXOHFFjW+WqMQYqdSp8IDxRbjnM2zdsvdP3i6s GCH01QJxHy71R2n8B/liTJyGfJO4YePVNfevYIIN3SmVIJIz6q2m3FMHckNmXAA3tCiu y1umZu+pURgNx6dQXHbwNlPvAfHanAqvHiYLPVMMAXgrKA6d1IFllgphoaqIxZ2Wqf74 s8XqRe/tp/UKpfsu93mVN4U6xs52VycO6tvwkgabUFnsD1Vbs3jLUJfjY21zqxZXBZbb ZTJ1LsDWYVhMBVkOWklBTyrgEdYkIk8GrwQ5eS3/XuyAd8/OkQo4FqhWAJnB5n2aEwh6 1tzg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-language:content-transfer-encoding :in-reply-to:mime-version:user-agent:date:message-id:from:references :cc:to:subject:ironport-sdr:ironport-sdr; bh=EDcdb27hlZ4uRQ6XfO8Kin5TXYjcyW3EPHPjo7rQHb0=; b=juOf6Ko4SqTzkQIsWWVRsN0w1F9aGoNsWW9yrLKr/wCRaFusfjUerp8G6x0v0sZM23 Gdatqlp8v9mgMGlmgy4tEvONL27BbaHih3/awjGAoWjzXtk0q4Y67nYGtI7aP1tM0rLr ghHSgEuBkUwlXfMriBX6jLFLg9p6k0FmDfqGaqWIQ/Vw4AQ9aKOA7y2bGLTSOFOoabBH SIjcF28hDv5w6Zo9ua5jHCyLlU0/vNOB8oMy1fSxopL1v1+iN4TWiTKntaatADikv5A5 nQk7bY5kmzOD2CH0V5uoD8KxO6H9vdGYo4TSzrsrlqIbwGEsWrONZtCHON1gWatAXbwO e9ag== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id g21si480551ejx.118.2021.05.05.14.56.01; Wed, 05 May 2021 14:56:24 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237828AbhEERYW (ORCPT + 99 others); Wed, 5 May 2021 13:24:22 -0400 Received: from mga12.intel.com ([192.55.52.136]:25660 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240814AbhEERVz (ORCPT ); Wed, 5 May 2021 13:21:55 -0400 IronPort-SDR: Gy5WfCCn8aFWi/mK5icurepG65pTP4/nbE5fdG3WmiDuQiKHKxHoJHeYx1mX6tyownRGoe2QTR DFu2uKJRLyPg== X-IronPort-AV: E=McAfee;i="6200,9189,9975"; a="177816675" X-IronPort-AV: E=Sophos;i="5.82,276,1613462400"; d="scan'208";a="177816675" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 May 2021 10:20:55 -0700 IronPort-SDR: o0yYawx1/oCR50PF9y3RQo/kL4Ul4IoEzby+KDd4eOIHGD4boO5vcuxfAg3lZsk6M6TWjvEHWX nxfZZdfaeNjA== X-IronPort-AV: E=Sophos;i="5.82,276,1613462400"; d="scan'208";a="433926393" Received: from akleen-mobl1.amr.corp.intel.com (HELO [10.209.54.13]) ([10.209.54.13]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 May 2021 10:20:54 -0700 Subject: Re: [PATCH] sched: Work around undefined behavior in sched class checking To: Nick Desaulniers Cc: Florian Weimer , Peter Zijlstra , LKML , Andi Kleen , linux-toolchains@vger.kernel.org References: <20210505033945.1282851-1-ak@linux.intel.com> <875yzxh8j8.fsf@oldenburg.str.redhat.com> <20210505143916.GS4032392@tassilo.jf.intel.com> From: Andi Kleen Message-ID: <37defc3e-4050-d8c5-c056-fdf64f516098@linux.intel.com> Date: Wed, 5 May 2021 10:20:54 -0700 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.10.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >> But not sure why you want a test case? > In general, > when making a feature request to a compiler vendor, having a > digestible snippet of code that demonstrates the problem goes a long > way, much further than "clone this branch of my fork of this project > and do a build and something goes wrong somewhere." We're too busy to > do that, please take the time to isolate it before making such > requests. Ah you misunderstood. I'm not making any feature requests. -Andi