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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 CB1C7C64E7B for ; Tue, 1 Dec 2020 09:47:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3AB60206CA for ; Tue, 1 Dec 2020 09:47:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=ellerman.id.au header.i=@ellerman.id.au header.b="lOWjBLMU" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728332AbgLAJrE (ORCPT ); Tue, 1 Dec 2020 04:47:04 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57880 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727892AbgLAJrD (ORCPT ); Tue, 1 Dec 2020 04:47:03 -0500 Received: from ozlabs.org (ozlabs.org [IPv6:2401:3900:2:1::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 82303C0613CF; Tue, 1 Dec 2020 01:46:23 -0800 (PST) Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4ClcgJ1NLgz9sVq; Tue, 1 Dec 2020 20:46:20 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ellerman.id.au; s=201909; t=1606815981; bh=fD4i2kWXYM+NtcZwGi7GTAphrjHdrxgTeHlMHf91pa0=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=lOWjBLMUC9WIwnhRiztyWkKagDwj6VM4DtUDLlX9dsYxaM0KfRpzIwn2NEsGwyAHI JWChlSyQwEaZDEJY2iznV9TMCvsKQn/lj3dEatn4CSDhv4TFH6D6SRc/T575MrOwUt 6XJM1OgLF8NzenHXp4v9k1GTrHq4XOrW7HZcJCWoBDuseDL33J6FUUjMFzkYSACsKy Vu+wLorwjC+DHzqxv9DTHlxQSnxSTN04hEZtH2uI3Q0mh5gCPhaw52+aafk16VteWW y8JumwPf965YkB4gV7wf8I/DCZM+duKMrfajQssf1KKsqrWj3PYevBAaq9lqq1tZzS HmveDfLK7KJNQ== From: Michael Ellerman To: Arnd Bergmann , "Eric W. Biederman" Cc: Geoff Levand , Linus Torvalds , Oleg Nesterov , Linux Kernel Mailing List , linux-fsdevel , Alexander Viro , Arnd Bergmann Subject: Re: [PATCH v2 02/24] exec: Simplify unshare_files In-Reply-To: References: <87r1on1v62.fsf@x220.int.ebiederm.org> <20201120231441.29911-2-ebiederm@xmission.com> <20201123175052.GA20279@redhat.com> <87im9vx08i.fsf@x220.int.ebiederm.org> <87pn42r0n7.fsf@x220.int.ebiederm.org> <877dqap76p.fsf@x220.int.ebiederm.org> Date: Tue, 01 Dec 2020 20:46:19 +1100 Message-ID: <87lfehx3is.fsf@mpe.ellerman.id.au> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Arnd Bergmann writes: ... > > If there are no objections, I can also send a patch to remove > CONFIG_PPC_CELL_NATIVE, PPC_IBM_CELL_BLADE and > everything that depends on those symbols, leaving only the > bits needed by ps3 in the arch/powerpc/platforms/cell directory. I'm not sure I'd merge it. The only way I am able to (easily) test Cell code is by using one of those blades, a QS22 to be precise. So if the blade support is removed then the rest of the Cell code is likely to bitrot quickly. Which may be the goal. I'd be more inclined to support removal of the core dump code. That seems highly unlikely to be in active use, I don't have the impression there are many folks doing active development on Cell. cheers