linux-kernel - Re: [PATCH] usb: fix breakage on systems without ACPI

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Message-ID: <20120516122153.GA31684@kroah.com>
Date:	Wed, 16 May 2012 05:21:53 -0700
From:	Greg KH <gregkh@...uxfoundation.org>
To:	Sasha Levin <levinsasha928@...il.com>
Cc:	mjg@...hat.com, tianyu.lan@...el.com, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] usb: fix breakage on systems without ACPI

On Wed, May 16, 2012 at 02:11:15PM +0200, Sasha Levin wrote:
> Commit da0af6e ("usb: Bind devices to ACPI devices when possible") really
> tries to force-bind devices even when impossible, unlike what it says in
> the subject.
> 
> CONFIG_ACPI is not an indication that ACPI tables are actually present, nor
> is an indication that any USB relevant information is present in them. There
> is no reason to fail the creation of a USB bus if it can't bind it to
> ACPI device during initialization.
> 
> On systems with CONFIG_ACPI set but without ACPI tables it would cause a
> boot panic.

Nice catch, sorry about that, I'll go queue this up.

greg k-h
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