linux-kernel - Re: [PATCH] platform/x86: acer-wmi: use true and false for boolean values

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Date:   Mon, 6 Aug 2018 12:24:26 -0500
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Joe Perches <joe@...ches.com>,
        David Laight <David.Laight@...LAB.COM>,
        'Andy Shevchenko' <andy.shevchenko@...il.com>
Cc:     "Lee, Chun-Yi" <jlee@...e.com>, Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Platform Driver <platform-driver-x86@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] platform/x86: acer-wmi: use true and false for boolean
 values



On 08/06/2018 11:42 AM, Joe Perches wrote:
> On Mon, 2018-08-06 at 16:41 +0000, David Laight wrote:
>> From: Andy Shevchenko
>>> Sent: 05 August 2018 11:26
>>>
>>> On Sun, Aug 5, 2018 at 3:18 AM, Gustavo A. R. Silva
>>> <gustavo@...eddedor.com> wrote:
>>>> Return statements in functions returning bool should use true or false
>>>> instead of an integer value.
>>>>
>>>> This code was detected with the help of Coccinelle.
>>>>  static bool has_cap(u32 cap)
>>>>  {
>>>>         if ((interface->capability & cap) != 0)
>>>> -               return 1;
>>>> +               return true;
>>>>
>>>> -       return 0;
>>>> +       return false;
>>>>  }
>>>
>>> this entire function can be oneliner:
>>>
>>> return !!(...);
>>
>> Why the !! ?? Just:
>> 	return (interface->capability & cap) != 0;
> 
> Because the return is bool you don't need the !! either.
> The compiler does that.
> 

Hi all,

I'll send v2 with the suggested improvements.

Thanks for your feedback.
--
Gustavo