linux-kernel - Re: [PATCH v2 1/5] ACPI: move acpi_os_handler() so it can be made arch-dependent later

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Message-ID: <54D2B00C.3000804@linaro.org>
Date:	Wed, 04 Feb 2015 16:49:32 -0700
From:	Al Stone <al.stone@...aro.org>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>, Al Stone <ahs3@...hat.com>
CC:	lenb@...nel.org, catalin.marinas@....com, will.deacon@....com,
	robert.moore@...el.com, tony.luck@...el.com, fenghua.yu@...el.com,
	linux-ia64@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-acpi@...r.kernel.org, devel@...ica.org,
	linux-arm-kernel@...ts.infradead.org, linaro-acpi@...ts.linaro.org,
	linaro-kernel@...ts.linaro.org, patches@...aro.org
Subject: Re: [PATCH v2 1/5] ACPI: move acpi_os_handler() so it can be made
 arch-dependent later

On 02/04/2015 04:21 PM, Rafael J. Wysocki wrote:
> On Wednesday, February 04, 2015 03:44:50 PM Al Stone wrote:
>> On 02/04/2015 06:50 AM, Rafael J. Wysocki wrote:
>>> On Tuesday, February 03, 2015 05:21:40 PM al.stone@...aro.org wrote:
>>>> From: Al Stone <al.stone@...aro.org>
>>>>
>>>> In order to deprecate the use of _OSI for arm64 or other new architectures,
>>>> we need to make the default handler something we can change for various
>>>> platforms.  This patch moves the definition of acpi_osi_handler() -- the
>>>> function used by ACPICA as a callback for evaluating _OSI -- into a separate
>>>> file.  Subsequent patches will change which files get built so that we can
>>>> then build the version of _OSI we need for a particular architecture.
>>>>
>>>> There is no functional change.
>>>>
>>>> Signed-off-by: Al Stone <al.stone@...aro.org>
>>>> ---
>>>>  drivers/acpi/Makefile |   2 +-
>>>>  drivers/acpi/osi.c    | 100 ++++++++++++++++++++++++++++++++++++++++++++++++++
>>>>  drivers/acpi/osl.c    |  24 ------------
>>>>  include/linux/acpi.h  |   1 +
>>>>  4 files changed, 102 insertions(+), 25 deletions(-)
>>>>  create mode 100644 drivers/acpi/osi.c
>>>>
>>>> diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
>>>> index c346011..df348b3 100644
>>>> --- a/drivers/acpi/Makefile
>>>> +++ b/drivers/acpi/Makefile
>>>> @@ -18,7 +18,7 @@ obj-y				+= acpi.o \
>>>>  					acpica/
>>>>  
>>>>  # All the builtin files are in the "acpi." module_param namespace.
>>>> -acpi-y				+= osl.o utils.o reboot.o
>>>> +acpi-y				+= osl.o utils.o reboot.o osi.o
>>>>  acpi-y				+= nvs.o
>>>>  
>>>>  # Power management related files
>>>> diff --git a/drivers/acpi/osi.c b/drivers/acpi/osi.c
>>>> new file mode 100644
>>>> index 0000000..fff2b0c
>>>> --- /dev/null
>>>> +++ b/drivers/acpi/osi.c
>>>> @@ -0,0 +1,100 @@
>>>> +/*
>>>> + *  osi.c - _OSI implementation (moved from drivers/acpi/osl.c)
>>>> + *
>>>> + *  Copyright (C) 2000       Andrew Henroid
>>>> + *  Copyright (C) 2001, 2002 Andy Grover <andrew.grover@...el.com>
>>>> + *  Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@...el.com>
>>>> + *  Copyright (c) 2008 Intel Corporation
>>>> + *   Author: Matthew Wilcox <willy@...ux.intel.com>
>>>> + *
>>>> + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>>> + *
>>>> + *  This program is free software; you can redistribute it and/or modify
>>>> + *  it under the terms of the GNU General Public License as published by
>>>> + *  the Free Software Foundation; either version 2 of the License, or
>>>> + *  (at your option) any later version.
>>>> + *
>>>> + *  This program is distributed in the hope that it will be useful,
>>>> + *  but WITHOUT ANY WARRANTY; without even the implied warranty of
>>>> + *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
>>>> + *  GNU General Public License for more details.
>>>
>>> Nit: The street address of the FSF is not really useful here.  What if they move? :-)
>>
>> This was one of the things checkpatch complained about, understandably :).  It's
>> a direct cut'n'paste from osl.c.
>>
>> I can clean these up in the new file; would it help to clean up osl.c (at least
>> from checkpatch's point of view), as long as I'm at it?
> 
> Yeah, won't hurt. :-)
> 
> In a separate patch please, though.
> 
> 

Of course.  Will do.

-- 
ciao,
al
-----------------------------------
Al Stone
Software Engineer
Linaro Enterprise Group
al.stone@...aro.org
-----------------------------------
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