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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 F0D77C54E8F for ; Mon, 11 May 2020 15:25:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D84E2206D5 for ; Mon, 11 May 2020 15:25:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730417AbgEKPZ7 (ORCPT ); Mon, 11 May 2020 11:25:59 -0400 Received: from mail-oi1-f194.google.com ([209.85.167.194]:36978 "EHLO mail-oi1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726410AbgEKPZ6 (ORCPT ); Mon, 11 May 2020 11:25:58 -0400 Received: by mail-oi1-f194.google.com with SMTP id r25so15415948oij.4; Mon, 11 May 2020 08:25:57 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=TzBIrOjeonGRZOL/Fq7k9DQ5ZvmwekoG5+JYmyzDCXE=; b=jOR/6PLEpfED1ickDxn5i2ZrU3OM+CrqcXnBUtHMbnWSnkl6n6KaDix3nyu9JJO0F/ FfdrvHpPXZAM5WZZc/sC/eyV8V4lrdJXmvGHqXpSiPzLKN+VSuUrNfuGxKMJpQjreoMM AzAy+PI8DEoVz2icsbyhP0YFl8siNsITfrPQSjoQPy18A6PbAGobwRG4E0fOWCXGSsVb MQvaNTX4vk7/l4tO0ivuyg90lMBGLh8YWYPrR9IBMGqXsxgJCe6WDO8GvaJqUKgcXcoS s8BqoOVWbymQKb2ovrdKUKEQDnKrfXvVtoM7eMhJb7rLOz/lEX2VNizsKIdbY24WJ9a0 XjlA== X-Gm-Message-State: AGi0PuZXRLSMWl+TlgDCCeF6yJHFuJETAiti9ETrRx3W3GXlMeQsP3DT OcuUc0Z8gZQ3pqhYGqDaz6Bm7Evuxpd5h18aZlI= X-Google-Smtp-Source: APiQypLlj1mTr31cEwJB2xy6sDTZQtzFBc6S7Z09a7MvI75cUG4xFy+vj6rnOik7yeSDKBHlS8j7JE0DJYDjRznsD0s= X-Received: by 2002:aca:895:: with SMTP id 143mr19322774oii.153.1589210756876; Mon, 11 May 2020 08:25:56 -0700 (PDT) MIME-Version: 1.0 References: <20200510075510.987823-1-hch@lst.de> <20200511151356.GB28634@lst.de> In-Reply-To: <20200511151356.GB28634@lst.de> From: Geert Uytterhoeven Date: Mon, 11 May 2020 17:25:45 +0200 Message-ID: Subject: Re: sort out the flush_icache_range mess To: Christoph Hellwig Cc: Andrew Morton , Arnd Bergmann , Roman Zippel , Linux-Arch , "open list:TENSILICA XTENSA PORT (xtensa)" , Michal Simek , Jessica Yu , "linux-ia64@vger.kernel.org" , linux-c6x-dev@linux-c6x.org, Linux-sh list , "open list:QUALCOMM HEXAGON..." , "the arch/x86 maintainers" , linux-um , Linux Kernel Mailing List , "open list:BROADCOM NVRAM DRIVER" , Linux MM , linux-m68k , Openrisc , alpha , sparclinux , Linux FS Devel , linux-riscv@lists.infradead.org, linuxppc-dev , Linux ARM Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Christoph, On Mon, May 11, 2020 at 5:14 PM Christoph Hellwig wrote: > On Mon, May 11, 2020 at 09:46:17AM +0200, Geert Uytterhoeven wrote: > > On Sun, May 10, 2020 at 9:55 AM Christoph Hellwig wrote: > > > none of which really are used by a typical MMU enabled kernel, as a.out can > > > only be build for alpha and m68k to start with. > > > > Quoting myself: > > "I think it's safe to assume no one still runs a.out binaries on m68k." > > http://lore.kernel.org/r/CAMuHMdW+m0Q+j3rsQdMXnrEPm+XB5Y2AQrxW5sD1mZAKgmEqoA@mail.gmail.com > > Do you want to drop the: > > select HAVE_AOUT if MMU > > for m68k then? If that helps to reduce maintenance, it's fine for me. That leaves alpha as the sole user? > Note that we'll still need flush_icache_user_range for m68k with mmu, > as it also allows binfmt_flat for mmu configs. Understood. Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds