linux-kernel - Re: [v5] Coccinelle: semantic code search for missing put

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Date:   Sat, 16 Feb 2019 09:44:04 +0100
From:   Markus Elfring <Markus.Elfring@....de>
To:     Julia Lawall <julia.lawall@...6.fr>,
        Wen Yang <wen.yang99@....com.cn>
Cc:     Gilles Muller <Gilles.Muller@...6.fr>,
        Nicolas Palix <nicolas.palix@...g.fr>,
        Michal Marek <michal.lkml@...kovi.net>,
        Yi Wang <wang.yi59@....com.cn>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Wen Yang <yellowriver2010@...mail.com>,
        Cheng Shengyu <cheng.shengyu@....com.cn>,
        cocci@...teme.lip6.fr, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: Re: [v5] Coccinelle: semantic code search for missing put_device()

>> Thus I do not see a need (or requirement) for a duplicate search attempt.
>
> Why don't you actually try it and see what the difference is rather than
> repeatedly giving false information?

I suggest to clarify this software development disagreement by the following
SmPL code.


 ... when != put_stuff(my_pointer)
     when != if (...) { ... put_stuff(my_pointer) ... }


Is this a specification for a bit of duplicate code?


Or:
Do you insist to find such a function call only within a branch of an if statement?

Regards,
Markus