From owner-freebsd-arch@FreeBSD.ORG  Sun Feb  5 08:48:21 2006
Return-Path: <owner-freebsd-arch@FreeBSD.ORG>
X-Original-To: arch@FreeBSD.org
Delivered-To: freebsd-arch@FreeBSD.ORG
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 7911416A420
	for <arch@FreeBSD.org>; Sun,  5 Feb 2006 08:48:21 +0000 (GMT)
	(envelope-from stefan@fafoe.narf.at)
Received: from viefep20-int.chello.at (viefep12-int.chello.at [213.46.255.25])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 59BA543D45
	for <arch@FreeBSD.org>; Sun,  5 Feb 2006 08:48:19 +0000 (GMT)
	(envelope-from stefan@fafoe.narf.at)
Received: from wombat.fafoe.narf.at ([213.47.85.26]) by viefep20-int.chello.at
	(InterMail vM.6.01.04.04 201-2131-118-104-20050224) with ESMTP id
	<20060205084817.DFCI24926.viefep20-int.chello.at@wombat.fafoe.narf.at>;
	Sun, 5 Feb 2006 09:48:17 +0100
Received: by wombat.fafoe.narf.at (Postfix, from userid 1001)
	id 47A30BC8C; Sun,  5 Feb 2006 09:48:15 +0100 (CET)
Date: Sun, 5 Feb 2006 09:48:15 +0100
From: Stefan Farfeleder <stefanf@FreeBSD.org>
To: "M. Warner Losh" <imp@bsdimp.com>
Message-ID: <20060205084813.GN21806@wombat.fafoe.narf.at>
References: <20060204211357.GD7604@ip.net.ua>
	<20060204.143353.109955782.imp@bsdimp.com>
	<86fymyn5il.fsf@xps.des.no>
	<20060204.155856.39766510.imp@bsdimp.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20060204.155856.39766510.imp@bsdimp.com>
User-Agent: Mutt/1.5.11
Cc: des@des.no, arch@FreeBSD.org
Subject: Re: [releng_6 tinderbox] failure on sparc64/sparc64
X-BeenThere: freebsd-arch@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussion related to FreeBSD architecture <freebsd-arch.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-arch>,
	<mailto:freebsd-arch-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-arch>
List-Post: <mailto:freebsd-arch@freebsd.org>
List-Help: <mailto:freebsd-arch-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-arch>,
	<mailto:freebsd-arch-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 05 Feb 2006 08:48:21 -0000

On Sat, Feb 04, 2006 at 03:58:56PM -0700, M. Warner Losh wrote:
> 
> This driver wants to access these structures as arrays of uint32_t.
> It used to cast directly, but that isn't allowed.  So, I've passed
> the cast through a (void *).  Is that allowed?  Eg:
> 
> 	struct foo foo;
> 	((uint32_t *)(void *)&foo)[3] = 12;
> 
> is that OK?

I'm afraid that only silences the warning without solving the underlying
problem.  I don't think there's a Standard conforming way to treat a
struct foo as an uint32_t array.

Stefan