linux-kernel - Re: [PATCH] staging: wlan-ng: improved readability of function prism2_add

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Message-ID: <20180620200829.qm2zxeyyl5kqh6gu@mwanda>
Date:   Wed, 20 Jun 2018 23:08:29 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Chris Opperman <eklikeroomys@...il.com>
Cc:     Kate Stewart <kstewart@...uxfoundation.org>,
        devel@...verdev.osuosl.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org,
        Philippe Ombredanne <pombredanne@...b.com>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH] staging: wlan-ng: improved readability of function
 prism2_add_key

On Wed, Jun 20, 2018 at 07:10:26PM +0200, Chris Opperman wrote:
> b) Added temporary "key" variable to reduce line length.

No, that's nonsense.  Just fix the original variable so that it's not a
million characters long.

Using a shorter variable is good if it simplifies the code like so:

	struct foo *foo = &my->random_variable[INDEX].whatever;

You've reduced 4 variable names and a butt load of punctuation down to
just "foo" so that we don't have to look at it repeated over and over
on every line.

But if you're just using a temporary variable because the original
variable name was poorly chosen, that's not the right thing.

regards,
dan carpenter