From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S965436AbbLOSsq (ORCPT <rfc822;w@1wt.eu>);
	Tue, 15 Dec 2015 13:48:46 -0500
Received: from mail.linuxfoundation.org ([140.211.169.12]:36476 "EHLO
	mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with ESMTP id S965394AbbLOSsn (ORCPT
	<rfc822;linux-kernel@vger.kernel.org>);
	Tue, 15 Dec 2015 13:48:43 -0500
Date: Tue, 15 Dec 2015 10:48:42 -0800
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: "Simmons, James A." <simmonsja@ornl.gov>
Cc: "'Dan Carpenter'" <dan.carpenter@oracle.com>,
        James Simmons <jsimmons@infradead.org>,
        "devel@driverdev.osuosl.org" <devel@driverdev.osuosl.org>,
        Andreas Dilger <andreas.dilger@intel.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Oleg Drokin <oleg.drokin@intel.com>,
        Amir Shehata <amir.shehata@intel.com>,
        "lustre-devel@lists.lustre.org" <lustre-devel@lists.lustre.org>
Subject: Re: [PATCH 13/40] staging: lustre: Dynamic LNet Configuration (DLC)
 show command
Message-ID: <20151215184842.GC16129@kroah.com>
References: <1448062576-23757-1-git-send-email-jsimmons@infradead.org>
 <1448062576-23757-14-git-send-email-jsimmons@infradead.org>
 <20151202112055.GM18797@mwanda>
 <944b6e806bc44a3fa4d6d5e1904a894a@EXCHCS32.ornl.gov>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <944b6e806bc44a3fa4d6d5e1904a894a@EXCHCS32.ornl.gov>
User-Agent: Mutt/1.5.24 (2015-08-30)
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Tue, Dec 15, 2015 at 06:14:19PM +0000, Simmons, James A. wrote:
>   
> >>  struct libcfs_ioctl_hdr {
> >>  	__u32 ioc_len;
> >> @@ -87,6 +88,13 @@ do {						    \
> >>  	data.ioc_hdr.ioc_len = sizeof(data);			\
> >>  } while (0)
> >>  
> >> +#define LIBCFS_IOC_INIT_V2(data, hdr)			\
> >> +do {							\
> >> +	memset(&(data), 0, sizeof(data));		\
> >> +	(data).hdr.ioc_version = LIBCFS_IOCTL_VERSION2;	\
> >> +	(data).hdr.ioc_len = sizeof(data);		\
> >> +} while (0)
> >> +
> >
> >Do we really need this?
> 
> Would you be okay if this was a inline function? This is used by user
> land and kernel space code.

Then your code is broken, please never do that.