From owner-cvs-src@FreeBSD.ORG  Thu Jun 17 19:28:09 2004
Return-Path: <owner-cvs-src@FreeBSD.ORG>
Delivered-To: cvs-src@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP
	id 2018316A4CE; Thu, 17 Jun 2004 19:28:09 +0000 (GMT)
Received: from harmony.village.org (rover.village.org [168.103.84.182])
	by mx1.FreeBSD.org (Postfix) with ESMTP
	id A265943D49; Thu, 17 Jun 2004 19:28:08 +0000 (GMT)
	(envelope-from imp@bsdimp.com)
Received: from localhost (warner@rover2.village.org [10.0.0.1])
	by harmony.village.org (8.12.11/8.12.11) with ESMTP id i5HJP5jj040143;
	Thu, 17 Jun 2004 13:25:05 -0600 (MDT)
	(envelope-from imp@bsdimp.com)
Date: Thu, 17 Jun 2004 13:25:22 -0600 (MDT)
Message-Id: <20040617.132522.102576979.imp@bsdimp.com>
To: jhb@freebsd.org
From: "M. Warner Losh" <imp@bsdimp.com>
In-Reply-To: <200406171247.04461.jhb@FreeBSD.org>
References: <200406152008.50656.jhb@FreeBSD.org>
	<20040615.210216.97064988.imp@bsdimp.com>
	<200406171247.04461.jhb@FreeBSD.org>
X-Mailer: Mew version 3.3 on Emacs 21.3 / Mule 5.0 (SAKAKI)
Mime-Version: 1.0
Content-Type: Text/Plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
cc: cvs-src@freebsd.org
cc: njl@freebsd.org
cc: src-committers@freebsd.org
cc: cvs-all@freebsd.org
Subject: Re: cvs commit: src/sys/i386/i386 bios.c
X-BeenThere: cvs-src@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: CVS commit messages for the src tree <cvs-src.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src>,
	<mailto:cvs-src-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/cvs-src>
List-Post: <mailto:cvs-src@freebsd.org>
List-Help: <mailto:cvs-src-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src>,
	<mailto:cvs-src-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 17 Jun 2004 19:28:09 -0000

In message: <200406171247.04461.jhb@FreeBSD.org>
            John Baldwin <jhb@FreeBSD.org> writes:
: On Tuesday 15 June 2004 11:02 pm, M. Warner Losh wrote:
: > In message: <200406152008.50656.jhb@FreeBSD.org>
: >
: >             John Baldwin <jhb@freebsd.org> writes:
: > : On Monday 14 June 2004 10:12 pm, Nate Lawson wrote:
: > : > njl         2004-06-15 02:12:12 UTC
: > : >
: > : >   FreeBSD src repository
: > : >
: > : >   Modified files:
: > : >     sys/i386/i386        bios.c
: > : >   Log:
: > : >   We only need the devclass_find() result, not the softc.
: > :
: > : The devclass still exists if there is no acpi0 device due to 'set
: > : hint.acpi.0.disabled=1'.  Perhaps devclass_get_device() is more
: > : appropriate than devclass_get_softc() though.
: >
: > The hint is insufficient to create the devclass, I believe.  It exists
: > because there's a node in the tree or could be a node in the tree.
: > devclass_get_device() and checking to see if it is attached might be
: > even better.
: 
: The devclass exists even if there is no acpi0 device is my point.  If acpi.ko 
: is loaded or compiled into the kernel, then the driver is going to be loaded 
: and the devclass added to the kernel's list.

I think we're saying basically the same thing and arguing over how it
gets there :-)

Fetching the softc likely isn't the right answer.
device_is_attached(dev) is likely a better way to go.

Warner