linux-kernel - Re: [4/5] Coccinelle: put_device: Extend when constraints for twoSmPL ellipses

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Date:   Tue, 14 May 2019 11:51:41 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     Wen Yang <wen.yang99@....com.cn>
Cc:     Julia Lawall <julia.lawall@...6.fr>,
        Gilles Muller <Gilles.Muller@...6.fr>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Michal Marek <michal.lkml@...kovi.net>,
        Nicolas Palix <nicolas.palix@...g.fr>,
        Yi Wang <wang.yi59@....com.cn>,
        LKML <linux-kernel@...r.kernel.org>,
        Coccinelle <cocci@...teme.lip6.fr>
Subject: Re: [4/5] Coccinelle: put_device: Extend when constraints for twoSmPL
 ellipses

> I did another experiment at that time and found that this modification will
> reduce the false positive rate,

Thanks for such feedback.

Will my update suggestion influence the current (or future) software situation?


> but it may also reduce the recall rate.

Would you like to explain this information a bit more?


> Could we use it to find out as many bugs as possible in the current kernel
> and then modify it?

I hope so.

* Will the false positive rate influence change acceptance considerably?

* Would you like to work with source code analysis approaches based on
  adjusted confidence settings?

Regards,
Markus