linux-kernel - Re: [PATCH] checkpatch: Fix check for embedded filename

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Date:   Sat, 05 Jun 2021 11:52:30 -0700
From:   Joe Perches <joe@...ches.com>
To:     Dwaipayan Ray <dwaipayanray1@...il.com>
Cc:     linux-kernel <linux-kernel@...r.kernel.org>,
        Lukas Bulwahn <lukas.bulwahn@...il.com>
Subject: Re: [PATCH] checkpatch: Fix check for embedded filename

On Sun, 2021-06-06 at 00:14 +0530, Dwaipayan Ray wrote:
> On Sun, Jun 6, 2021 at 12:03 AM Joe Perches <joe@...ches.com> wrote:
> > On Sat, 2021-06-05 at 23:03 +0530, Dwaipayan Ray wrote:
> > > On Sat, Jun 5, 2021 at 10:51 PM Joe Perches <joe@...ches.com> wrote:
> > > > On Sat, 2021-06-05 at 21:42 +0530, Dwaipayan Ray wrote:
> > > > > When checkpatch is run on file contents piped through stdin,
> > > > > it may generate false EMBEDDED_FILENAME warnings if the
> > > > > --file flag is used.
> > > > 
> > > > I think this is a "don't do that" scenario and this change
> > > > is not necessary.
> > > > 
> > > 
> > > Okay then. I will drop this.
> > > Sorry for the noise.
> > 
> > I think you want something like this:
> > ---
> > diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
[]
> > @@ -331,6 +331,7 @@ help(0) if ($help);
> > 
> >  die "$P: --git cannot be used with --file or --fix\n" if ($git && ($file || $fix));
> >  die "$P: --verbose cannot be used with --terse\n" if ($verbose && $terse);
> > +die "$P: -f/--file requires at least one filename\n" if ($file && $#ARGV < 0);
> > 
> >  if ($color =~ /^[01]$/) {
> >         $color = !$color;
> > 
> 
> Yes, that's nice.
> Most of the checks don't work with piped input when --file
> is specified. So disabling it will avoid any confusion.
> 
> I can send in a patch if it's okay with you.

Fine by me.  You noticed, your patch...