linux-kernel - Re: [Update 2][PATCH 2/3] ACPI / driver core: Introduce struct acpi_dev

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Message-ID: <20121120180819.GA12328@kroah.com>
Date:	Tue, 20 Nov 2012 10:08:19 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Jean Delvare <khali@...ux-fr.org>, ben-linux@...ff.org,
	w.sang@...gutronix.de, linux-kernel@...r.kernel.org,
	lenb@...nel.org, rafael.j.wysocki@...el.com,
	broonie@...nsource.wolfsonmicro.com, grant.likely@...retlab.ca,
	linus.walleij@...aro.org, mathias.nyman@...ux.intel.com,
	linux-acpi@...r.kernel.org
Subject: Re: [Update 2][PATCH 2/3] ACPI / driver core: Introduce struct
 acpi_dev_node and related macros

On Tue, Nov 20, 2012 at 10:34:04AM +0100, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> Subject: ACPI / driver core: Introduce struct acpi_dev_node and related macros
> 
> To avoid adding an ACPI handle pointer to struct device on
> architectures that don't use ACPI, or generally when CONFIG_ACPI is
> not set, in which cases that pointer is useless, define struct
> acpi_dev_node that will contain the handle pointer if CONFIG_ACPI is
> set and will be empty otherwise and use it to represent the ACPI
> device node field in struct device.
> 
> In addition to that define macros for reading and setting the ACPI
> handle of a device that don't generate code when CONFIG_ACPI is
> unset.  Modify the ACPI subsystem to use those macros instead of
> referring to the given device's ACPI handle directly.
> 
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>


Acked-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

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