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=-5.0 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,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 82DF8C433E0 for ; Thu, 21 Jan 2021 18:25:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4314523A56 for ; Thu, 21 Jan 2021 18:25:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725860AbhAUSWk (ORCPT ); Thu, 21 Jan 2021 13:22:40 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45870 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1733310AbhAUSTi (ORCPT ); Thu, 21 Jan 2021 13:19:38 -0500 Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [IPv6:2001:4d48:ad52:32c8:5054:ff:fe00:142]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AD0B1C06174A for ; Thu, 21 Jan 2021 10:18:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=n+7s1NqxCgqXJcbfxpzaNn6cyTg9f2ty1WaVqSroHUE=; b=C5cwTVIZtcI1L+vPDI+GhXsYz mS+hK6eec6X/LKTnMi/uMQF9FeUihvXgox4gpKqxAaCJMhGrq6RMy4JVEmNWc6j99bZGZfM5doTBZ YV5JMKC1gWCRIFyF282sD1HNUlWMX8S7egP2sNzUST06adftheesvM5Fny1+dp6ye/X0E0Rq6EhNM HB5BCWUM+hZ4QqsGyRA+cCMfTlLOsh6xEXSJK27x7JVzDdt2TfS4ygULVRzYNkBtd8GvHu1XQtk9m 05b7kmbMyQZ1v/GUOmYMz6u5Q1QTaEIX8JVKaN3mYJmbnULOaSyfihyY0V6y8v1RjMSJCRxgwD5bd Xgzy6g5Xg==; Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:50910) by pandora.armlinux.org.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1l2eXg-0001l4-Ry; Thu, 21 Jan 2021 18:18:48 +0000 Received: from linux by shell.armlinux.org.uk with local (Exim 4.92) (envelope-from ) id 1l2eXf-0007Gr-HJ; Thu, 21 Jan 2021 18:18:47 +0000 Date: Thu, 21 Jan 2021 18:18:47 +0000 From: Russell King - ARM Linux admin To: Richard Cochran , Arnd Bergmann Cc: Andrew Lunn , Heiner Kallweit , "David S. Miller" , Jakub Kicinski , netdev@vger.kernel.org Subject: Re: [PATCH net-next] net: ethtool: allow MAC drivers to override ethtool get_ts_info Message-ID: <20210121181847.GQ1551@shell.armlinux.org.uk> References: <20210114125506.GC3154@hoboy.vegasvil.org> <20210114132217.GR1551@shell.armlinux.org.uk> <20210114133235.GP1605@shell.armlinux.org.uk> <20210114172712.GA13644@hoboy.vegasvil.org> <20210114173111.GX1551@shell.armlinux.org.uk> <20210114223800.GR1605@shell.armlinux.org.uk> <20210121040451.GB14465@hoboy.vegasvil.org> <20210121102738.GN1551@shell.armlinux.org.uk> <20210121150611.GA20321@hoboy.vegasvil.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210121150611.GA20321@hoboy.vegasvil.org> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: Russell King - ARM Linux admin Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Thu, Jan 21, 2021 at 07:06:11AM -0800, Richard Cochran wrote: > On Thu, Jan 21, 2021 at 10:27:38AM +0000, Russell King - ARM Linux admin wrote: > > As I already explained to you, you can *NOT* use kernel configuration > > to make the choice. ARM is a multi-platform kernel, and we will not > > stand for platform choices dictated by kernel configuration options. > > This has nothing to do with ARM as a platform. The same limitation > applies to x86 and all the rest. You don't plainly don't understand, because you just called ARM a platform. ARM isn't a platform, it's an architecture, which is a totally different thing. A platform is a device, like a phone, or a router, or a computer. However, all platforms may have the same CPU architecture - that being ARM. ARM as an architecture is in the situation where distributions have pushed hard for it to be like x86. You build one kernel for your distribution, not multiple hardware specific kernels. That means, there is one kernel configuration. Platform specifics are handled through firmware such as device tree. Having platform specific kernel configuration options, such as "we want to use PHY timestamping" vs "we want to use MAC timestamping" do not work in this environment. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!