linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Julia Lawall <julia.lawall@lip6.fr>
To: Markus Elfring <Markus.Elfring@web.de>
Cc: Joe Perches <joe@perches.com>,
	cocci@systeme.lip6.fr, kernel-janitors@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	David Laight <David.Laight@ACULAB.COM>
Subject: Re: [PATCH 1/2] string: Add stracpy and stracpy_pad mechanisms
Date: Thu, 25 Jul 2019 06:34:38 -0500 (CDT)	[thread overview]
Message-ID: <alpine.DEB.2.21.1907250632500.2535@hadrien> (raw)
In-Reply-To: <e3a37d93-0353-ebed-948a-991add184616@web.de>

[-- Attachment #1: Type: text/plain, Size: 1076 bytes --]



On Thu, 25 Jul 2019, Markus Elfring wrote:

> > New version.  I check for non-use of the return value of strlcpy and
> > address some issues that affected the matching of the case where the first
> > argument involves a pointer dereference.
>
> I suggest to take another look at corresponding implementation details
> of the shown SmPL script.
>
>
> > \(strscpy\|strlcpy\)(e1.f, e2, i2)@p
>
> Can the data access operator “->” (arrow) matter also here?

What did my email say about isomorphisms?

>
>
> > @@
> > identifier r.i1,r.i2;
> > type T;
> > @@
> > struct i1 { ... T i1[i2]; ... }
>
> Will an additional SmPL rule name be helpful for this part?

Yes, sorry, it would seem that that is necessary.  I will fix and resend
the results.

>
>
> > @@
> > (
> > -x = strlcpy
> > +stracpy
> >   (e1.f, e2
> > -    , i2
> >   )@p;
> >   ... when != x
> >
> > |
>
> I wonder about the deletion of the assignment target.
> Should the setting of such a variable be usually preserved?

If it is a local variable and never subsequently used, it doesn't seem
very useful.

julia

  reply	other threads:[~2019-07-25 11:34 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-23  0:38 [PATCH 0/2] string: Add stracpy and stracpy_pad Joe Perches
2019-07-23  0:38 ` [PATCH 1/2] string: Add stracpy and stracpy_pad mechanisms Joe Perches
2019-07-23  4:35   ` Andrew Morton
2019-07-23  4:42     ` Joe Perches
2019-07-23 21:29       ` Kees Cook
2019-07-23  6:55   ` Rasmus Villemoes
2019-07-23 15:41     ` David Laight
2019-07-23 15:50       ` Joe Perches
2019-07-23 21:34       ` Kees Cook
2019-07-24 12:05       ` Yann Droneaud
2019-07-24 13:09         ` Rasmus Villemoes
2019-07-24 17:08           ` Linus Torvalds
2019-07-25 20:03             ` Kees Cook
2019-07-26  2:46               ` Joe Perches
     [not found]   ` <66fcdbf607d7d0bea41edb39e5579d63b62b7d84.camel@perches.com>
2019-07-23 20:52     ` [Fwd: [PATCH 1/2] string: Add stracpy and stracpy_pad mechanisms] Julia Lawall
2019-07-23 23:42       ` Joe Perches
2019-07-24  3:54         ` Julia Lawall
2019-07-24  4:19           ` Joe Perches
2019-07-24  4:27             ` Julia Lawall
2019-07-24  4:37               ` Joe Perches
2019-07-24 10:28                 ` David Laight
2019-07-24 10:43                   ` Joe Perches
2019-07-24 11:45                     ` Julia Lawall
2019-07-25  1:42                     ` Julia Lawall
2019-07-25  7:46                       ` [PATCH 1/2] string: Add stracpy and stracpy_pad mechanisms Markus Elfring
2019-07-25 11:34                         ` Julia Lawall [this message]
2019-07-25 12:40                           ` [1/2] " Markus Elfring
2019-07-25 13:45                       ` [PATCH 1/2] " Markus Elfring
2019-07-25 13:48                         ` Julia Lawall
2019-07-25 14:48                           ` [1/2] " Markus Elfring
2019-07-25 13:50                       ` [Fwd: [PATCH 1/2] string: Add stracpy and stracpy_pad mechanisms] Joe Perches
2019-07-25 13:58                         ` Julia Lawall
2019-07-25 14:12                           ` Joe Perches
2019-07-25 22:51                             ` Julia Lawall
2019-07-26  6:15                               ` [1/2] string: Add stracpy and stracpy_pad mechanisms Markus Elfring
2019-07-29 14:07                             ` [Fwd: [PATCH 1/2] string: Add stracpy and stracpy_pad mechanisms] Julia Lawall
2019-07-29 16:28                               ` Joe Perches
2019-07-23 21:36   ` [PATCH 1/2] string: Add stracpy and stracpy_pad mechanisms Kees Cook
2019-07-24 11:40     ` Joe Perches
2019-07-23  0:38 ` [PATCH 2/2] kernel-doc: core-api: Include string.h into core-api Joe Perches
2019-07-23 21:28   ` Kees Cook

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=alpine.DEB.2.21.1907250632500.2535@hadrien \
    --to=julia.lawall@lip6.fr \
    --cc=David.Laight@ACULAB.COM \
    --cc=Markus.Elfring@web.de \
    --cc=cocci@systeme.lip6.fr \
    --cc=joe@perches.com \
    --cc=kernel-janitors@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).