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 9320BC54E8D for ; Mon, 11 May 2020 15:34:35 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 51D57206DB for ; Mon, 11 May 2020 15:34:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 51D57206DB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-m68k.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 49LQ3D2SwBzDqTP for ; Tue, 12 May 2020 01:34:32 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gmail.com (client-ip=209.85.167.195; helo=mail-oi1-f195.google.com; envelope-from=geert.uytterhoeven@gmail.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux-m68k.org Received: from mail-oi1-f195.google.com (mail-oi1-f195.google.com [209.85.167.195]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 49LPsM75PczDqQD for ; Tue, 12 May 2020 01:25:59 +1000 (AEST) Received: by mail-oi1-f195.google.com with SMTP id o7so15428471oif.2 for ; Mon, 11 May 2020 08:25:59 -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=BJGaxwOXlNgTgiBbSSRPvaKwuqTqKXcSR0cBdz4ZShctC/axn4Wq1nlGwg/rnudp4S pbPNbmtYD69GqdORXG9LJXBgyn6LYyxDmwBZyN/Yjk1OAIvutEgCLYU6Y+NCvHctS2s7 kbEk8mLNAR3G3n+Xxpx+VzOozcyLvSFgNfSMWCMdRNzOJDZpd3Sw198o5H3jBlZYWrsl bB1bglBPQFgfdA4Jaw/JHMcoe1+mS/TSN8DRv8KING/CR6vb34YmuDHTp6NYiCB5H5Y2 BgWmTV3ASY8h09hZvVfBpo/DfgwfgdXf5Y92VBmtas+BKjPVVlFQgCMthV5LyIS/K944 Vj3Q== X-Gm-Message-State: AGi0PuYniHxz4r0tmASRNUhCQaCwg9eKRMdRE6AqJqnBpVCkr/08EWbe alfBslVDPBWZt+wRVjn4VyHAXYfPsW+YtJ+W5qs= 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 Content-Type: text/plain; charset="UTF-8" X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "linux-ia64@vger.kernel.org" , Linux-sh list , Roman Zippel , "open list:BROADCOM NVRAM DRIVER" , Linux MM , sparclinux , linux-riscv@lists.infradead.org, Linux-Arch , linux-c6x-dev@linux-c6x.org, "open list:QUALCOMM HEXAGON..." , the arch/x86 maintainers , "open list:TENSILICA XTENSA PORT \(xtensa\)" , Arnd Bergmann , Jessica Yu , linux-um , linux-m68k , Openrisc , Linux ARM , Michal Simek , Linux Kernel Mailing List , alpha , Linux FS Devel , Andrew Morton , linuxppc-dev Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" 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