Received: by 2002:a05:6a10:2785:0:0:0:0 with SMTP id ia5csp639615pxb;
        Thu, 14 Jan 2021 15:00:09 -0800 (PST)
X-Google-Smtp-Source: ABdhPJw7r5a/Pvwr6VNGPyOwDavQhQpW2Jphe6HULqKJKRYq85kLKxMDvMx/UEz8TzCnge7ErSVQ
X-Received: by 2002:a05:6402:158:: with SMTP id s24mr7632609edu.19.1610665208816;
        Thu, 14 Jan 2021 15:00:08 -0800 (PST)
ARC-Seal: i=1; a=rsa-sha256; t=1610665208; cv=none;
        d=google.com; s=arc-20160816;
        b=kiQmlTVqQeou/0S6ZkMpcFKF+5Bqz7c4Pr9GJXgTUbCz5ozVyFH+WFbCcVhfpPJe1c
         vpwTYKrGfSvRfBL5WmBUQoPV9CtbVqhFOMGhOiqYRea0m+3h8HPbQGQiICPv+fVP49Q0
         VbFjldbj5AZ7JCxEJMqUonXGL55MY+8Vga9qLiCG5kMJIXODlKSAJH0ECNSFyRrMEsyE
         nRDPmcYHL+3/+IXYkSCWc0J/5EfuR0ZIjFB65I2P5ywKlQv+zWDE0eRlO++TTlJGYXME
         YmQT1dbOUSznOVULnyJYkHHL0IyTB/AkPncuFrh3IxHZp4CPiRKEH69JT9iCcfFOFriz
         mrgw==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816;
        h=list-id:precedence:mime-version:references:message-id:in-reply-to
         :subject:cc:to:from:date;
        bh=D8bU3k9tOyZzMcy9/rM39Mt0dh47/vlQW6qEnYdevyY=;
        b=VSqUTG9JnP8NTtzTFuVDt9D/7r1QokpsnM70bkA4CXrkhcoO/924/GUCc8y9ECtEwk
         pHWbAOxRCXWEAS/V6OU1mXUVXj2aWGV3iSI+0HG7k4s2NetOmAy0f84p/dSHu5hVi9rp
         hfIidiq4KnmlM6sYcl2jTm4I3CR4wxGmf2QmlIuCwfe+4A3t1VPSUUtxPGVVig3xBNEW
         Sx9zLkK0rvqLtgBUeJbkEnJHviBTwLTjCw07FfeRQ72KqSFARzpYu4grBxrYmyN7GMt/
         xokByKBdrZ5zdk/c9KIhAt2K/2EkLyYQjb4MUZJ5P1R/Y555lruW9NiDtZLfouPHulJ3
         pJzw==
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
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18])
        by mx.google.com with ESMTP id qq23si2984468ejb.232.2021.01.14.14.59.45;
        Thu, 14 Jan 2021 15:00:08 -0800 (PST)
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
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1731027AbhANWzY (ORCPT <rfc822;lizhong0730@gmail.com>
        + 99 others); Thu, 14 Jan 2021 17:55:24 -0500
Received: from kvm5.telegraphics.com.au ([98.124.60.144]:60780 "EHLO
        kvm5.telegraphics.com.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S1730849AbhANWzX (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Thu, 14 Jan 2021 17:55:23 -0500
Received: from localhost (localhost.localdomain [127.0.0.1])
        by kvm5.telegraphics.com.au (Postfix) with ESMTP id A2390227AE;
        Thu, 14 Jan 2021 17:54:39 -0500 (EST)
Date:   Fri, 15 Jan 2021 09:54:37 +1100 (AEDT)
From:   Finn Thain <fthain@telegraphics.com.au>
To:     Arnd Bergmann <arnd@kernel.org>
cc:     John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>,
        Linus Walleij <linus.walleij@linaro.org>,
        Gerhard Pircher <gerhard_pircher@gmx.net>,
        Arnd Bergmann <arnd@arndb.de>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        linux-m68k <linux-m68k@lists.linux-m68k.org>,
        Sparc kernel list <sparclinux@vger.kernel.org>,
        Linux-sh list <linux-sh@vger.kernel.org>
Subject: Undesirable code, was Re: Old platforms etc.
In-Reply-To: <CAK8P3a1+SdAW8VKnvMdXNVcpR-ykNdPoqLqb59uxzB+jNFJRtg@mail.gmail.com>
Message-ID: <alpine.LNX.2.23.453.2101150924260.7@nippy.intranet>
References: <ef1dc21f-694b-2433-e1c6-aa121320173e@physik.fu-berlin.de> <f48bcf43-9dcc-e48b-d29d-f75f3814398b@gmx.net> <cb5a2e11-d423-96ec-3d43-3568a109e37f@physik.fu-berlin.de> <CACRpkda4E2NwNw29J7x5gehtqn_m3M_Z2dHpc7xRgvb0b-p22A@mail.gmail.com>
 <1be37673-db0e-f09d-68c8-f929be4019ab@physik.fu-berlin.de> <CAK8P3a1+SdAW8VKnvMdXNVcpR-ykNdPoqLqb59uxzB+jNFJRtg@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Thu, 14 Jan 2021, Arnd Bergmann wrote:

> I think it's mainly a misunderstanding of what I am trying to do
> in finding the platforms that have been completely abandoned.

Have you tried to identify those drivers and Kconfig symbols in mainline 
that are used only by devices that don't function with mainline kernels?