linux-kernel - Re: [PATCH] ACPI: Remove useless type argument of driver .remove() operation

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Date:	Tue, 22 Jan 2013 13:54:47 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>, Len Brown <lenb@...nel.org>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Toshi Kani <toshi.kani@...com>
Subject: Re: [PATCH] ACPI: Remove useless type argument of driver .remove() operation

On Sun, Jan 20, 2013 at 2:06 PM, Rafael J. Wysocki <rjw@...k.pl> wrote:
> On Sunday, January 20, 2013 11:04:47 PM Rafael J. Wysocki wrote:
>> From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
>>
>> The second argument of ACPI driver .remove() operation is only used
>> by the ACPI processor driver and the value passed to that driver
>> through it is always available from the given struct acpi_device
>> object's removal_type field.  For this reason, the second ACPI driver
>> .remove() argument is in fact useless, so drop it.
>>
>> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
>
> Forgot to say: This is on top of the linux-next branch of the linux-pm.git tree.
>
> Thanks,
> Rafael
>
>
>> ---
>>  drivers/acpi/ac.c                        |    4 ++--
>>  drivers/acpi/acpi_memhotplug.c           |    4 ++--
>>  drivers/acpi/acpi_pad.c                  |    3 +--
>>  drivers/acpi/battery.c                   |    2 +-
>>  drivers/acpi/button.c                    |    4 ++--
>>  drivers/acpi/container.c                 |    4 ++--
>>  drivers/acpi/ec.c                        |    2 +-
>>  drivers/acpi/fan.c                       |    4 ++--
>>  drivers/acpi/hed.c                       |    2 +-
>>  drivers/acpi/pci_link.c                  |    4 ++--
>>  drivers/acpi/pci_root.c                  |    4 ++--
>>  drivers/acpi/processor_driver.c          |    6 +++---
>>  drivers/acpi/sbs.c                       |    6 +++---
>>  drivers/acpi/sbshc.c                     |    4 ++--
>>  drivers/acpi/scan.c                      |    5 ++---
>>  drivers/acpi/thermal.c                   |    4 ++--
>>  drivers/acpi/video.c                     |    4 ++--
>>  drivers/char/hpet.c                      |    2 +-
>>  drivers/char/sonypi.c                    |    2 +-
>>  drivers/hwmon/acpi_power_meter.c         |    2 +-
>>  drivers/hwmon/asus_atk0110.c             |    4 ++--
>>  drivers/i2c/busses/i2c-scmi.c            |    2 +-
>>  drivers/input/misc/atlas_btns.c          |    2 +-
>>  drivers/platform/x86/asus-laptop.c       |    2 +-
>>  drivers/platform/x86/classmate-laptop.c  |    8 ++++----
>>  drivers/platform/x86/eeepc-laptop.c      |    2 +-
>>  drivers/platform/x86/fujitsu-laptop.c    |    4 ++--
>>  drivers/platform/x86/fujitsu-tablet.c    |    2 +-
>>  drivers/platform/x86/hp_accel.c          |    2 +-
>>  drivers/platform/x86/ideapad-laptop.c    |    2 +-
>>  drivers/platform/x86/intel_menlow.c      |    2 +-
>>  drivers/platform/x86/panasonic-laptop.c  |    4 ++--
>>  drivers/platform/x86/sony-laptop.c       |    4 ++--
>>  drivers/platform/x86/topstar-laptop.c    |    2 +-
>>  drivers/platform/x86/toshiba_acpi.c      |    4 ++--
>>  drivers/platform/x86/toshiba_bluetooth.c |    4 ++--
>>  drivers/platform/x86/wmi.c               |    4 ++--
>>  drivers/platform/x86/xo15-ebook.c        |    2 +-
>>  drivers/staging/quickstart/quickstart.c  |    2 +-
>>  drivers/video/backlight/apple_bl.c       |    2 +-
>>  drivers/xen/xen-acpi-pad.c               |    3 +--
>>  include/acpi/acpi_bus.h                  |    2 +-
>>  42 files changed, 67 insertions(+), 70 deletions(-)
>>
>> Index: linux-pm/include/acpi/acpi_bus.h
>> ===================================================================
>> --- linux-pm.orig/include/acpi/acpi_bus.h
>> +++ linux-pm/include/acpi/acpi_bus.h
>> @@ -89,7 +89,7 @@ struct acpi_device;
>>   */
>>
>>  typedef int (*acpi_op_add) (struct acpi_device * device);
>> -typedef int (*acpi_op_remove) (struct acpi_device * device, int type);
>> +typedef int (*acpi_op_remove) (struct acpi_device * device);
>>  typedef int (*acpi_op_start) (struct acpi_device * device);
>>  typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event);

Acked-by: Yinghai Lu <yinghai@...nel.org>

Also can you remove acpi_op_start ? there is no user with it.

Yinghai
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