linux-kernel - Re: [Cocci] coccinelle: Convert comma to semicolons (was Re: [PATCH] checkpatch: Add test for comma use that should be semicolon)

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Date:   Thu, 24 Sep 2020 13:33:06 -0700
From:   Joe Perches <joe@...ches.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Julia Lawall <julia.lawall@...ia.fr>
Cc:     Valdis Klētnieks <valdis.kletnieks@...edu>,
        kernel-janitors <kernel-janitors@...r.kernel.org>,
        kernelnewbies <kernelnewbies@...nelnewbies.org>,
        linux-kernel-mentees@...ts.linuxfoundation.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        cocci <cocci@...teme.lip6.fr>,
        Giuseppe Scrivano <gscrivan@...hat.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Andy Whitcroft <apw@...dowen.org>
Subject: Re: [Cocci] coccinelle: Convert comma to semicolons (was Re:
 [PATCH] checkpatch: Add test for comma use that should be semicolon)

On Thu, 2020-09-24 at 22:19 +0200, Thomas Gleixner wrote:
> On Sat, Aug 22 2020 at 09:07, Julia Lawall wrote:
> > On Fri, 21 Aug 2020, Joe Perches wrote:
> > > True enough for a general statement, though the coccinelle
> > > script Julia provided does not change a single instance of
> > > for loop expressions with commas.
> > > 
> > > As far as I can tell, no logic defect is introduced by the
> > > script at all.
> > 
> > The script has a rule to ensure that what is changed is part of a top
> > level statement that has the form e1, e2;.  I put that in to avoid
> > transforming cases where the comma is the body of a macro, but it protects
> > against for loop headers as well.
> 
> Right. I went through the lot and did not find something dodgy. Except
> for two hunks this still applies. Can someone please send a proper patch
> with changelog/SOB etc. for this?

Treewide?

Somebody no doubt would complain, but there
_really should_ be some mechanism for these
trivial and correct treewide changes...