linux-kernel - Re: [PATCH 3/4] auxdisplay: charlcd: fix x/y address commands

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Date:   Mon, 26 Feb 2018 23:38:54 +0100
From:   Robert Abel <rabel@...ertabel.eu>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     linux-kernel <linux-kernel@...r.kernel.org>,
        Miguel Ojeda <miguel.ojeda.sandonis@...il.com>,
        Willy Tarreau <w@....eu>,
        Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: Re: [PATCH 3/4] auxdisplay: charlcd: fix x/y address commands

Hi Andy, Hi Miguel,

On 26 Feb 2018 12:44, Andy Shevchenko wrote:
> Can we avoid yoda style of programming?
On 26 Feb 2018 17:49, Miguel Ojeda wrote:
> Please do not change the style of the code w.r.t to the rest of the
> file, which writes tests with the non-lvalue on the right-hand side
> and do not compare against '\0'. Same for the rest.

I am actually a fan of yoda-style programming, although its value is
diminished with modern IDEs, which we all use, right?

On 26 Feb 2018 17:54, Miguel Ojeda wrote:
> On Mon, Feb 26, 2018 at 12:44 PM, Andy Shevchenko
>> Perhaps instead of dancing around kstrtox() better to switch to
>> simple_strtoul() ?
>
> It seems deprecated:
>
> /* Obsolete, do not use.  Use kstrto<foo> instead */
> extern unsigned long simple_strtoul(const char *,char **,unsigned int);

I thought the whole point was that simple_strtoul is deprecated and on
the kill list? Isn't that kind of against the whole argument of
re-inventing the wheel?
If using simple_strtoul is an option, it might be best to bring it back
and not touch the buffer at all.

Regards,

Robert