From mboxrd@z Thu Jan 1 00:00:00 1970 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=-2.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 B31D4CA9EA0 for ; Fri, 25 Oct 2019 21:42:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7FA2321872 for ; Fri, 25 Oct 2019 21:42:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="corvTpm1" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725865AbfJYVmQ (ORCPT ); Fri, 25 Oct 2019 17:42:16 -0400 Received: from mail-wr1-f50.google.com ([209.85.221.50]:35611 "EHLO mail-wr1-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725811AbfJYVmQ (ORCPT ); Fri, 25 Oct 2019 17:42:16 -0400 Received: by mail-wr1-f50.google.com with SMTP id l10so3934614wrb.2 for ; Fri, 25 Oct 2019 14:42:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=to:cc:from:subject:message-id:date:user-agent:mime-version :content-language:content-transfer-encoding; bh=GNJc1rR1j79hhkXaFdZUlmiWSIF64yC4QKn+617csog=; b=corvTpm1tnK+SOj4ko+AJFC0ohUtwqVkB2GPwKagd6DMv79Y1KfODZIkI2HTbA50dk t+emLftvQBsh6jy6TXfbRFNdIR4bsQ///3kezULLZsyxcyIQe3Imj9FM+H+hEO8eAZE1 TeVNoeOTn7UeI8b+EgJu8L2Za5YvWRBQQV9bc1y1U6Jr9XMvXSvis/dnOJK4hwWCcw+4 6KNkOe66IKIutXeqKoKfKgXdcye9oiFYAazPshP7YD4qKZYlZFu5YlPaTBEFp7EuK8Nv 9h/JyUuHPIfP4Zv09cvx/+xGfDiELk87hcUv0fMFz5e8ulavQ+VYH/AOuC+RxVLTctTv RLbw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:to:cc:from:subject:message-id:date:user-agent :mime-version:content-language:content-transfer-encoding; bh=GNJc1rR1j79hhkXaFdZUlmiWSIF64yC4QKn+617csog=; b=dxA62Bu6CJmYKsbmF8U04tgL5OhIa1Y5LNXdS2z2V3WHKplLfnuktYJXPevW0+iP5k +rX8cvL5/uaTokKcmIbg3rx0snG+3PHo7Hs+kwDUsXeTN+MqSDgUWa8QzqPolLu1ziF7 vOpSJLP0QTGgPytJnwCIDO3LC9REkxKnS1AieLuitDzfTUggYx9oLNc3TC8TkZzX0/+m t9Bc5IZL/vOxCBKsJ8zFKp0V+7SCU0qyF3L9eIfFPNI6FvwXmYTz8qmCBHIHzQkE0ndB /PCdYi6FozlkMND3n+wmz2wkqM2uJSF/BNNU2B86wRsmwcNLqqBo2zatW1J3ZJ49++S6 FVDQ== X-Gm-Message-State: APjAAAVJG9CeLEl/VUiWQgoB+OnvxZQwGH8ZSaaxBukoF7JiQR7vqW0v FLoPckoLu94ejew/2zg1WalyUtrv X-Google-Smtp-Source: APXvYqwd9MyN8Nx8BXezJZQuk5OayHXGKeK3LB19oLYBK3SqM61uNbbYc5jCKQD0/TosCF2rxv0t0A== X-Received: by 2002:a5d:5704:: with SMTP id a4mr5124871wrv.281.1572039734557; Fri, 25 Oct 2019 14:42:14 -0700 (PDT) Received: from ?IPv6:2003:ea:8f26:6400:adc9:ea2:903e:e65d? (p200300EA8F266400ADC90EA2903EE65D.dip0.t-ipconnect.de. [2003:ea:8f26:6400:adc9:ea2:903e:e65d]) by smtp.googlemail.com with ESMTPSA id u10sm4395034wmj.0.2019.10.25.14.42.13 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 25 Oct 2019 14:42:14 -0700 (PDT) To: Bjorn Helgaas Cc: "linux-pci@vger.kernel.org" From: Heiner Kallweit Subject: Drop Kconfig option PCIEASPM? Message-ID: <1f784101-fe7a-becf-d855-ddc6d03a3f92@gmail.com> Date: Fri, 25 Oct 2019 23:42:06 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org I wonder whether anybody actually wants to disable ASPM support. In an old Kconfig commit message is mentioned that it may help to reduce kernel size of embedded systems. However I would think that on embedded systems ASPM is quite useful as it saves significant power and may result in a lower system temperature therefore. W/o ASPM support we have to live with devices coming up in whatever mode boot loader or firmware configure. Heiner