linux-kernel - Re: [PATCH] Coccinelle: use false positive annotation

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Date:   Mon, 30 Oct 2017 11:52:13 +0800 (CST)
From:   Julia Lawall <julia.lawall@...6.fr>
To:     Masahiro Yamada <yamada.masahiro@...ionext.com>
cc:     Fengguang Wu <fengguang.wu@...el.com>,
        "Rafael J . Wysocki" <rjw@...ysocki.net>,
        kernel-janitors@...r.kernel.org,
        Gilles Muller <Gilles.Muller@...6.fr>,
        Nicolas Palix <nicolas.palix@...g.fr>,
        Michal Marek <michal.lkml@...kovi.net>, cocci@...teme.lip6.fr,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Coccinelle: use false positive annotation



On Mon, 30 Oct 2017, Masahiro Yamada wrote:

> Hi Julia,
>
>
> 2017-10-29 8:43 GMT+09:00 Julia Lawall <Julia.Lawall@...6.fr>:
> > /// is to describe the semantic patch, while //# indicates reasons
> > for false positives.
> >
> > Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>
> >
> > ---
> >  scripts/coccinelle/misc/ifcol.cocci |    6 +++---
> >  1 file changed, 3 insertions(+), 3 deletions(-)
> >
> > diff --git a/scripts/coccinelle/misc/ifcol.cocci b/scripts/coccinelle/misc/ifcol.cocci
> > index d0d00ef..30b248b 100644
> > --- a/scripts/coccinelle/misc/ifcol.cocci
> > +++ b/scripts/coccinelle/misc/ifcol.cocci
> > @@ -3,9 +3,9 @@
> >  /// Sometimes, code after an if that is indented is actually intended to be
> >  /// part of the if branch.
> >  ///
> > -/// This has a high rate of false positives, because Coccinelle's column
> > -/// calculation does not distinguish between spaces and tabs, so code that
> > -/// is not visually aligned may be considered to be in the same column.
> > +//# This has a high rate of false positives, because Coccinelle's column
> > +//# calculation does not distinguish between spaces and tabs, so code that
> > +//# is not visually aligned may be considered to be in the same column.
> >  ///
>
> Just a nit.
>
> The last /// should be turned into //
> if you want to avoid two blank lines in a series
> after the semantic patch information.
>
> (I can fix it locally if you agree with it and I am supposed to pick up this.)

Thanks for detecting the problem.  It would be great if you could pick it
up, since I haven't heard confirmation from Michal that he will start this
again.  The change seems fine.  Thanks for your help.

julia

>
>
>
> >  // Confidence: Low
> >  // Copyright: (C) 2010 Nicolas Palix, DIKU.  GPLv2.
> >
>
>
>
> --
> Best Regards
> Masahiro Yamada
>