From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann Subject: Re: [PATCH] ipc/sem: 64bit union semun definition Date: Tue, 05 May 2015 21:37:37 +0200 Message-ID: <2165666.hrkl3t0kHm@wuerfel> References: <1430850523-7522-1-git-send-email-a22017@motorola.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Return-path: In-Reply-To: <1430850523-7522-1-git-send-email-a22017-3WKxDLwmzFNWk0Htik3J/w@public.gmane.org> Sender: linux-api-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: a22017-3WKxDLwmzFNWk0Htik3J/w@public.gmane.org Cc: akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org, linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-api@vger.kernel.org On Tuesday 05 May 2015 11:28:43 a22017-3WKxDLwmzFNWk0Htik3J/w@public.gmane.org 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