linux-kernel - Re: [Cocci] [v3 05/10] mmap locking API: Checking the Coccinelle software

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Date:   Sat, 28 Mar 2020 15:16:32 +0100
From:   Markus Elfring <Markus.Elfring@....de>
To:     Julia Lawall <julia.lawall@...ia.fr>,
        Michel Lespinasse <walken@...gle.com>,
        Coccinelle <cocci@...teme.lip6.fr>
Cc:     linux-mm@...ck.org, Davidlohr Bueso <dave@...olabs.net>,
        Peter Zijlstra <peterz@...radead.org>,
        Hugh Dickins <hughd@...gle.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Liam Howlett <Liam.Howlett@...cle.com>,
        Jason Gunthorpe <jgg@...pe.ca>,
        Matthew Wilcox <willy@...radead.org>,
        Ying Han <yinghan@...gle.com>,
        David Rientjes <rientjes@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Laurent Dufour <ldufour@...ux.ibm.com>,
        Vlastimil Babka <vbabka@...e.cz>
Subject: Re: [Cocci] [v3 05/10] mmap locking API: Checking the Coccinelle
 software

> The problem can be seen with the --debug option:
>
> FLOW: can't jump to VMALLOC_FAULT_TARGET: because we can't find this label
>
> It's not apparent with the --parse-c option because it's not a parsing problem.

Thanks for such information.

Can the example be transformed even if extra source code was intentionally deleted
for the easier clarification of the shown software test?

Regards,
Markus