linux-kernel - Re: [PATCH V6 09/11] ACPI: introduce flag .is_master

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Message-ID: <20140521085207.GR1651@lahna.fi.intel.com>
Date:	Wed, 21 May 2014 11:52:07 +0300
From:	Mika Westerberg <mika.westerberg@...ux.intel.com>
To:	Zhang Rui <rui.zhang@...el.com>
Cc:	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
	bhelgaas@...gle.com, matthew.garrett@...ula.com,
	rafael.j.wysocki@...el.com, dmitry.torokhov@...il.com
Subject: Re: [PATCH V6 09/11] ACPI: introduce flag .is_master_device

On Thu, May 15, 2014 at 02:44:14PM +0800, Zhang Rui wrote:
> For some ACPI device objects, they represent master devices,
> and their children devices are enumerated by bus controller drivers
> for the buses they are on.
> 
> In this case, we do not want to enumerate their children devices to
> platform bus explicitly in acpi scan code.
> 
> Thus a new flag .is_master_device is introduced in this patch.
> 
> For devices with this flag set, we will not do default enumeration
> for their children.

Is there any particular reason we would like to enumerate everything
below the first device by default?
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