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Date:   Fri, 12 Apr 2019 21:26:41 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>
CC:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>
Subject: Re: [PATCH v2] gpio: merrifield: Fix build err without CONFIG_ACPI

On 2019/4/12 21:13, Andy Shevchenko wrote:
> On Fri, Apr 12, 2019 at 3:55 AM Rafael J. Wysocki <rjw@...ysocki.net> wrote:
>> On Friday, April 5, 2019 4:50:09 PM CEST Andy Shevchenko wrote:
>>> On Fri, Apr 05, 2019 at 10:21:12PM +0800, Yue Haibing wrote:
>>>> From: YueHaibing <yuehaibing@...wei.com>
>>>>
>>>> When building CONFIG_ACPI is not set
>>>> gcc warn this:
>>>>
>>>> drivers/gpio/gpio-merrifield.c: In function
>>>> mrfld_gpio_get_pinctrl_dev_name: drivers/gpio/gpio-merrifield.c:388:19:
>>>> error: dereferencing pointer to incomplete type struct acpi_device>
>>>>    put_device(&adev->dev);
>>>>
>>>>                    ^
>>>>
>>>> Reported-by: Hulk Robot <hulkci@...wei.com>
>>>> Suggested-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
>>>> Fixes:d00d2109c367 ("gpio: merrifield: Convert to use
>>>> acpi_dev_get_first_match_dev()") Signed-off-by: YueHaibing
>>>> <yuehaibing@...wei.com>
>>>
>>> Thank you for an update, I have a comment below, but before sending v3, let
>>> Rafael to have a chance to look at it.
>>>
>>>>  #ifdef CONFIG_ACPI
>>>>  extern int acpi_platform_notify(struct device *dev, enum kobject_action
>>>>  action);>
>>>> +
>>>> +static inline void put_acpi_device(struct acpi_device *adev)
>>>> +{
>>>> +   put_device(&adev->dev);
>>>> +}
>>>
>>> This should probably go to acpi_bus.h under acpi_dev_get_first_match_dev().
>>> And talking to Mika we agreed that naming would be better as acpi_dev_put().
>>
>> Agreed on both accounts.
> 
> Thanks!
> YueHaibing, please, send v3 with suggested changes.

Ok.

> 

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