linux-kernel - Re: [PATCH 1/1] gpio: add sloppy logic analyzer using polling

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Date:   Mon, 6 Sep 2021 14:21:26 +0200
From:   Wolfram Sang <wsa+renesas@...g-engineering.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linus Walleij <linus.walleij@...aro.org>
Subject: Re: [PATCH 1/1] gpio: add sloppy logic analyzer using polling


> Yes, it means you are not able to use * (a.k.a. glob() function) in
> the shell which increases a lot security and other (misuse) concerns.
> Instead you have to use `find` or similar tools to collect the list of
> the files of your interest.

I see. I don't think this is relevant for the script here, but I'll try
it nonetheless for educational reasons.

> To me it's less error prone to have something like this:
> 
> while [ $# -gt 1 ]; do # notice the condition, btw
>   case "$1" in
>   opt_with_parameter) ...; shift;;
>   toggler_opt) ...;;
>   esac
>   shift
> done

Ok, I like it. Thanks!


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