From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <SRS0=aKpC=P3=lists.ozlabs.org=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@kernel.org>
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=-6.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,
	MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_NEOMUTT
	autolearn=unavailable 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 ADF45C5AE5E
	for <linuxppc-dev@archiver.kernel.org>; Sat, 19 Jan 2019 03:16:57 +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 CE4E520850
	for <linuxppc-dev@archiver.kernel.org>; Sat, 19 Jan 2019 03:16:56 +0000 (UTC)
DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CE4E520850
Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=iram.es
Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org
Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])
	by lists.ozlabs.org (Postfix) with ESMTP id 43hNJk1hlRzDrF0
	for <linuxppc-dev@archiver.kernel.org>; Sat, 19 Jan 2019 14:16:54 +1100 (AEDT)
Authentication-Results: lists.ozlabs.org;
 spf=pass (mailfrom) smtp.mailfrom=iram.es
 (client-ip=130.206.19.138; helo=mx01.puc.rediris.es;
 envelope-from=paubert@iram.es; receiver=<UNKNOWN>)
Authentication-Results: lists.ozlabs.org;
 dmarc=none (p=none dis=none) header.from=iram.es
Received: from mx01.puc.rediris.es (outbound1mad.lav.puc.rediris.es
 [130.206.19.138])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (No client certificate requested)
 by lists.ozlabs.org (Postfix) with ESMTPS id 43hNGt1HR0zDrB3
 for <linuxppc-dev@lists.ozlabs.org>; Sat, 19 Jan 2019 14:15:17 +1100 (AEDT)
Received: from sim.rediris.es (mta-out04.sim.rediris.es [130.206.24.46])
 (user=smtp-out_iram mech=LOGIN bits=0)
 by mx01.puc.rediris.es  with ESMTP id x0IHIvZD032248-x0IHIvZF032248
 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO);
 Fri, 18 Jan 2019 18:18:57 +0100
Received: from sim.rediris.es (localhost.localdomain [127.0.0.1])
 by sim.rediris.es (Postfix) with ESMTPS id 2AC0A3957F;
 Fri, 18 Jan 2019 18:18:50 +0100 (CET)
Received: from sim.rediris.es (localhost.localdomain [127.0.0.1])
 by sim.rediris.es (Postfix) with ESMTPS id 0AF0F39581;
 Fri, 18 Jan 2019 18:18:46 +0100 (CET)
Received: from lt-gp.iram.es (46.246.223.87.dynamic.jazztel.es [87.223.246.46])
 by sim.rediris.es (Postfix) with ESMTPA id 7728C3957F;
 Fri, 18 Jan 2019 18:18:37 +0100 (CET)
Date: Fri, 18 Jan 2019 18:18:30 +0100
From: Gabriel Paubert <paubert@iram.es>
To: Arnd Bergmann <arnd@arndb.de>
Subject: Re: [PATCH v2 13/29] arch: add split IPC system calls where needed
Message-ID: <20190118171830.quvvwdgbuhq2nqrh@lt-gp.iram.es>
References: <20190118161835.2259170-1-arnd@arndb.de>
 <20190118161835.2259170-14-arnd@arndb.de>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20190118161835.2259170-14-arnd@arndb.de>
User-Agent: NeoMutt/20170113 (1.7.2)
X-FEAS-AUTH-USER: smtp-out_iram
X-BeenThere: linuxppc-dev@lists.ozlabs.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Linux on PowerPC Developers Mail List <linuxppc-dev.lists.ozlabs.org>
List-Unsubscribe: <https://lists.ozlabs.org/options/linuxppc-dev>,
 <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe>
List-Archive: <http://lists.ozlabs.org/pipermail/linuxppc-dev/>
List-Post: <mailto:linuxppc-dev@lists.ozlabs.org>
List-Help: <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help>
List-Subscribe: <https://lists.ozlabs.org/listinfo/linuxppc-dev>,
 <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe>
Cc: dalias@libc.org, linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
 catalin.marinas@arm.com, will.deacon@arm.com, linux-mips@vger.kernel.org,
 jcmvbkbc@gmail.com, deepa.kernel@gmail.com, hpa@zytor.com,
 sparclinux@vger.kernel.org, linux-arch@vger.kernel.org,
 linux-s390@vger.kernel.org, y2038@lists.linaro.org, deller@gmx.de,
 x86@kernel.org, linux@armlinux.org.uk, mingo@redhat.com, geert@linux-m68k.org,
 firoz.khan@linaro.org, mattst88@gmail.com, fenghua.yu@intel.com,
 heiko.carstens@de.ibm.com, linux-alpha@vger.kernel.org, schwidefsky@de.ibm.com,
 linux-m68k@lists.linux-m68k.org, luto@kernel.org, tglx@linutronix.de,
 linux-arm-kernel@lists.infradead.org, monstr@monstr.eu, tony.luck@intel.com,
 linux-parisc@vger.kernel.org, linux-api@vger.kernel.org,
 linux-kernel@vger.kernel.org, paul.burton@mips.com, ebiederm@xmission.com,
 netdev@vger.kernel.org, linux-fsdevel@vger.kernel.org,
 akpm@linux-foundation.org, linuxppc-dev@lists.ozlabs.org, davem@davemloft.net
Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org
Sender: "Linuxppc-dev"
 <linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org>

On Fri, Jan 18, 2019 at 05:18:19PM +0100, Arnd Bergmann wrote:
> The IPC system call handling is highly inconsistent across architectures,
> some use sys_ipc, some use separate calls, and some use both.  We also
> have some architectures that require passing IPC_64 in the flags, and
> others that set it implicitly.
> 
> For the additon of a y2083 safe semtimedop() system call, I chose to only

It's not critical, but there are two typos in that line: 
additon -> addition
2083 -> 2038

	Gabriel

> support the separate entry points, but that requires first supporting
> the regular ones with their own syscall numbers.
> 
> The IPC_64 is now implied by the new semctl/shmctl/msgctl system
> calls even on the architectures that require passing it with the ipc()
> multiplexer.
> 
> I'm not adding the new semtimedop() or semop() on 32-bit architectures,
> those will get implemented using the new semtimedop_time64() version
> that gets added along with the other time64 calls.
> Three 64-bit architectures (powerpc, s390 and sparc) get semtimedop().
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>