linux-kernel - RE: spdxcheck.py complains about the second OR?

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Date:   Tue, 5 Nov 2019 10:11:31 +0000
From:   "Zavras, Alexios" <alexios.zavras@...el.com>
To:     Joe Perches <joe@...ches.com>, Thomas Gleixner <tglx@...utronix.de>
CC:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "linux-spdx@...r.kernel.org" <linux-spdx@...r.kernel.org>,
        "Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>
Subject: RE: spdxcheck.py complains about the second OR?

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.

-- zvr

-----Original Message-----
From: linux-spdx-owner@...r.kernel.org <linux-spdx-owner@...r.kernel.org> On Behalf Of Joe Perches
Sent: Monday, 4 November, 2019 23:24
To: Thomas Gleixner <tglx@...utronix.de>; Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>; linux-spdx@...r.kernel.org; Linux Kernel Mailing List <linux-kernel@...r.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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