From: Julia Lawall <julia.lawall@inria.fr>
To: David Gow <davidgow@google.com>
Cc: Marcelo Schmitt <marcelo.schmitt1@gmail.com>,
Jonathan Corbet <corbet@lwn.net>,
Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
Daniel Latypov <dlatypov@google.com>,
"open list:DOCUMENTATION" <linux-doc@vger.kernel.org>,
linux-sparse@vger.kernel.org, cocci@inria.fr,
smatch@vger.kernel.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Shuah Khan <skhan@linuxfoundation.org>,
Dan Carpenter <dan.carpenter@oracle.com>,
julia.lawall@inria.fr
Subject: Re: [PATCH v2 2/2] Documentation: dev-tools: Enhance static analysis section with discussion
Date: Wed, 30 Mar 2022 10:07:49 +0200 (CEST) [thread overview]
Message-ID: <alpine.DEB.2.22.394.2203301007190.2592@hadrien> (raw)
In-Reply-To: <CABVgOSkb5CpnXDF_m7iy=A7RmN+KmY0T38TeZ4hKbmkdQgt6Yw@mail.gmail.com>
> > +Strong points of Smatch and Coccinelle
> > +--------------------------------------
> > +
> > +Coccinelle is probably the easiest for writing checks. It works before the
> > +pre-compiler so it's easier to check for bugs in macros using Coccinelle.
> > +Coccinelle also writes patches fixes for you which no other tool does.
> > +
> > +With Coccinelle you can do a mass conversion from
>
> (Maybe start this with "For example," just to make it clear that this
> paragraph is mostly following on from how useful it is that Coccinelle
> produces fixes, not just warnings.)
I also suggested "for example", in a different place, but either is fine.
julia
>
> > +``kmalloc(x * size, GFP_KERNEL)`` to ``kmalloc_array(x, size, GFP_KERNEL)``, and
> > +that's really useful. If you just created a Smatch warning and try to push the
> > +work of converting on to the maintainers they would be annoyed. You'd have to
> > +argue about each warning if can really overflow or not.
> > +
> > +Coccinelle does no analysis of variable values, which is the strong point of
> > +Smatch. On the other hand, Coccinelle allows you to do simple things in a simple
> > +way.
> > --
> > 2.35.1
> >
>
next prev parent reply other threads:[~2022-03-30 8:07 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-29 23:21 [PATCH v2 0/2] Add a section for static analysis tools Marcelo Schmitt
2022-03-29 23:22 ` [PATCH v2 1/2] Documentation: dev-tools: " Marcelo Schmitt
2022-03-29 23:48 ` Daniel Latypov
2022-03-30 2:33 ` David Gow
2022-03-30 8:04 ` Julia Lawall
2022-03-29 23:23 ` [PATCH v2 2/2] Documentation: dev-tools: Enhance static analysis section with discussion Marcelo Schmitt
2022-03-30 2:48 ` David Gow
2022-03-30 8:07 ` Julia Lawall [this message]
2022-03-30 19:30 ` Marcelo Schmitt
2022-04-01 0:18 ` David Gow
2022-03-31 8:14 ` Dan Carpenter
2022-04-01 0:19 ` David Gow
2022-03-30 8:06 ` Julia Lawall
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