linux-kernel - Re: [PATCH v5] printf: add support for printing symbolic error names

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Message-ID: <CAHp75Vcw9Wn6a2VEhQ00o1FZq=egtiQGjC1=uX1J71wQ9pf-pw@mail.gmail.com>
Date:   Wed, 16 Oct 2019 16:49:41 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Rasmus Villemoes <linux@...musvillemoes.dk>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Jonathan Corbet <corbet@....net>,
        Joe Perches <joe@...ches.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Uwe Kleine-König <uwe@...ine-koenig.org>,
        Petr Mladek <pmladek@...e.com>,
        Linux Documentation List <linux-doc@...r.kernel.org>
Subject: Re: [PATCH v5] printf: add support for printing symbolic error names

On Tue, Oct 15, 2019 at 10:07 PM Rasmus Villemoes
<linux@...musvillemoes.dk> wrote:

> +const char *errname(int err)
> +{
> +       const char *name = __errname(err > 0 ? err : -err);

Looks like mine comment left unseen.
What about to simple use abs(err) here?

> +       if (!name)
> +               return NULL;
> +
> +       return err > 0 ? name + 1 : name;
> +}

-- 
With Best Regards,
Andy Shevchenko