From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757488AbbEEThs (ORCPT ); Tue, 5 May 2015 15:37:48 -0400 Received: from mout.kundenserver.de ([212.227.126.130]:49172 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751247AbbEEThq (ORCPT ); Tue, 5 May 2015 15:37:46 -0400 From: Arnd Bergmann To: a22017@motorola.com Cc: akpm@linux-foundation.org, linux-api@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] ipc/sem: 64bit union semun definition Date: Tue, 05 May 2015 21:37:37 +0200 Message-ID: <2165666.hrkl3t0kHm@wuerfel> User-Agent: KMail/4.11.5 (Linux/3.16.0-10-generic; KDE/4.11.5; x86_64; ; ) In-Reply-To: <1430850523-7522-1-git-send-email-a22017@motorola.com> References: <1430850523-7522-1-git-send-email-a22017@motorola.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Provags-ID: V03:K0:izmbzb20mzzJIxT6P96KjHHdMPUsRtfeFZbdCmYJHVjStnHMK15 9V7AJGAtzRoXs4AIpD+efndSM9SQXgL9Sta9usqS9iXRvmOin3kN5pyVNSiHxISlLMk8LJw 7qaVKrjChmaL5cZMlDUUmWCPtcbMlzKOSWH1ayBZaWFRu7PSlJ/tulfE28Ge9tmAP11/7X9 eIFnj4ZYZwvZJ+ZoLVcYA== X-UI-Out-Filterresults: notjunk:1; Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tuesday 05 May 2015 11:28:43 a22017@motorola.com wrote: > From: Ling-Juan Sun > > The member of semun semid_ds has new definition > semid64_ds for 64bit architectures. > > Signed-off-by: Ling-Juan Sun > Please describe in more detail what this is needed for. The way I understood this, used space would always define union semun to define semid_ds, but that would normally match the kernel's semid64_ds. Also, what is the connection with 64-bit architectures here? Arnd