linux-kernel - Re: [PATCH v2] gpiolib: Add stubs for gpiod lookup table interface

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Date:   Thu, 27 Apr 2017 16:25:34 +0200
From:   Anatolij Gustschin <agust@...x.de>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Alexandre Courbot <gnurou@...il.com>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] gpiolib: Add stubs for gpiod lookup table interface

On Thu, 27 Apr 2017 17:07:23 +0300
Andy Shevchenko andy.shevchenko@...il.com wrote:

>On Thu, Apr 27, 2017 at 9:52 AM, Anatolij Gustschin <agust@...x.de> wrote:
>> Add stubs for gpiod_add_lookup_table() and gpiod_remove_lookup_table()
>> for the !GPIOLIB case to prevent build errors. Also add prototypes.
>>
>> Signed-off-by: Anatolij Gustschin <agust@...x.de>
>> Reviewed-by: Andy Shevchenko <andy.shevchenko@...il.com>  
>
>Oh, has to take my tag back. See below why.
>
>
>> --- a/include/linux/gpio/consumer.h
>> +++ b/include/linux/gpio/consumer.h  
>
>It is already defined in machine.h.
>
>What you basically need is to add stubs for !GPIOLIB case
>
>#ifdef ...
>...existing prototypes...
>#else /* GPIOLIB */
>static inline void gpiod_add_lookup_table(struct gpiod_lookup_table *table) {}
>static inline void gpiod_remove_lookup_table(struct gpiod_lookup_table
>*table) {}
>#endif /* !GPIOLIB */
>
>P.S. please notice how I put the stubs. It would be good to keep them
>in two lines.

this will exceed 80 char line limit.

Thanks,

Anatolij