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Subject: Re: spdxcheck.py complains about the second OR?
From:   Joe Perches <joe@perches.com>
To:     "Zavras, Alexios" <alexios.zavras@intel.com>,
        Thomas Gleixner <tglx@linutronix.de>
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        "linux-spdx@vger.kernel.org" <linux-spdx@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Masahiro Yamada <yamada.masahiro@socionext.com>
Date:   Tue, 05 Nov 2019 07:10:52 -0800
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On Tue, 2019-11-05 at 10:11 +0000, Zavras, Alexios wrote:
> This is not correct.
> Since the grammar includes the production "expr: expr OR expr",
> there is absolutely no need to add a rule with more than two operands --
> it will be handled recursively.

You sure about the recursion?

It does work and spdxcheck no longer emits a message for
these two files.

> -- zvr
> 
> -----Original Message-----
> From: linux-spdx-owner@vger.kernel.org <linux-spdx-owner@vger.kernel.org> On Behalf Of Joe Perches
> Sent: Monday, 4 November, 2019 23:24
> To: Thomas Gleixner <tglx@linutronix.de>; Masahiro Yamada <yamada.masahiro@socionext.com>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>; linux-spdx@vger.kernel.org; Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
> Subject: Re: spdxcheck.py complains about the second OR?
> 
> On Mon, 2019-11-04 at 23:11 +0100, Thomas Gleixner wrote:
> > On Fri, 1 Nov 2019, Masahiro Yamada wrote:
> > > scripts/spdxcheck.py warns the following two files.
> > > 
> > > $ ./scripts/spdxcheck.py
> > > drivers/net/ethernet/pensando/ionic/ionic_if.h: 1:52 Syntax error: 
> > > OR
> > > drivers/net/ethernet/pensando/ionic/ionic_regs.h: 1:52 Syntax error: 
> > > OR
> > > 
> > > I do not understand what is wrong with them.
> > > 
> > > I think "A OR B OR C" is sane.
> > 
> > Yes it is, but obviously we did not expect files with 3 possible 
> > alternative licenses.
> 
> Perhaps just this, but the generic logic obviously isn't complete.
> ---
>  scripts/spdxcheck.py | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/scripts/spdxcheck.py b/scripts/spdxcheck.py index 6374e0..00be34 100755
> --- a/scripts/spdxcheck.py
> +++ b/scripts/spdxcheck.py
> @@ -150,6 +150,7 @@ class id_parser(object):
>                  | ID WITH EXC
>                  | expr AND expr
>                  | expr OR expr
> +                | expr OR expr OR expr
>                  | LPAR expr RPAR'''
>          pass
>  
> 
> 
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