linux-kernel - Re: [PATCH 5/5] gpio: uapi: clarify the meaning of 'empty' char arrays

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Message-ID: <CAHp75VdJ7zqPtWXKp3cUqPw3ZT7K0Dxzf7NYK+Zk9ZBhAPqG4g@mail.gmail.com>
Date:   Mon, 5 Oct 2020 14:01:22 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Kent Gibson <warthog618@...il.com>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Linus Walleij <linus.walleij@...aro.org>
Subject: Re: [PATCH 5/5] gpio: uapi: clarify the meaning of 'empty' char arrays

On Mon, Oct 5, 2020 at 10:07 AM Kent Gibson <warthog618@...il.com> wrote:
>
> Clarify that a char array containing a string is considered 'empty' if
> the first character is the null terminator. The remaining characters
> are not relevant to this determination.

>   * @label: a functional name for this GPIO chip, such as a product
> - * number, may be empty
> + * number, may be empty (i.e. label[0] == '\0')

I would rather put it like
"...may be empty string (i.e. label == "")"

And so on for the rest.

-- 
With Best Regards,
Andy Shevchenko