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[2620:137:e000::1:20]) by mx.google.com with ESMTP id z17-20020a2e8851000000b0024db298bd63si7222980ljj.371.2022.04.29.01.31.16; Fri, 29 Apr 2022 01:31:49 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347443AbiD1Nok (ORCPT + 99 others); Thu, 28 Apr 2022 09:44:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56250 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241572AbiD1Noi (ORCPT ); Thu, 28 Apr 2022 09:44:38 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 465225BE5E; Thu, 28 Apr 2022 06:41:24 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id E50A9B82D5F; Thu, 28 Apr 2022 13:41:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5DD67C385A9; Thu, 28 Apr 2022 13:41:20 +0000 (UTC) Message-ID: <99adb257-bf94-a291-b5a9-d22e97ce967a@linux-m68k.org> Date: Thu, 28 Apr 2022 23:41:17 +1000 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.7.0 Subject: Re: [PATCH 4/4] m68knommu: allow elf_fdpic loader to be selected Content-Language: en-US To: Geert Uytterhoeven Cc: Linux/m68k , Linux MM , Linux Kernel Mailing List , Rich Felker References: <20220428033319.239341-1-gerg@linux-m68k.org> <20220428033319.239341-5-gerg@linux-m68k.org> From: Greg Ungerer In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-6.7 required=5.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,NICE_REPLY_A,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Geert, On 28/4/22 17:20, Geert Uytterhoeven wrote: > Hi Greg, > > On Thu, Apr 28, 2022 at 7:05 AM Greg Ungerer wrote: >> The m68k architecture code is capable of supporting the binfmt_elf_fdpic >> loader, so allow it to be configured. It is restricted to nommu >> configurations at this time due to the MMU context structures/code not >> supporting everything elf_fdpic needs when MMU is enabled. >> >> Signed-off-by: Greg Ungerer > > Reviewed-by: Geert Uytterhoeven > >> --- a/fs/Kconfig.binfmt >> +++ b/fs/Kconfig.binfmt >> @@ -58,7 +58,7 @@ config ARCH_USE_GNU_PROPERTY >> config BINFMT_ELF_FDPIC >> bool "Kernel support for FDPIC ELF binaries" >> default y if !BINFMT_ELF >> - depends on (ARM || (SUPERH && !MMU)) >> + depends on (ARM || ((M68K || SUPERH) && !MMU)) > > While at it, you may want to drop the unneeded outer parentheses, > as they make the expression harder to round, IMHO. Sure thing, will do, Regards Greg >> select ELFCORE >> help >> ELF FDPIC binaries are based on ELF, but allow the individual load > > 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