linux-kernel - Re: [v2 1/4] coccinelle: api: extend memdup_user transformation with GFP

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Date:   Sat, 18 Jul 2020 14:14:20 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     Julia Lawall <julia.lawall@...ia.fr>,
        Denis Efremov <efremov@...ux.com>,
        Coccinelle <cocci@...teme.lip6.fr>
Cc:     Gilles Muller <Gilles.Muller@...6.fr>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        Nicolas Palix <nicolas.palix@...g.fr>,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [v2 1/4] coccinelle: api: extend memdup_user transformation with
 GFP_USER

> You proposed essentially  \( A \| B \) \( | C \| \)

Will the software development attention grow for a topic
like “Extend support for handling of optional source code parts”?
https://github.com/coccinelle/coccinelle/issues/53

How do you think about another tiny example script for the semantic patch language?

@display@
constant A, B;
@@
*A
?| B


elfring@...ne:~/Projekte/Coccinelle/Probe> spatch --parse-cocci optional_disjunction_test3-20200718.cocci
…
warning: incompatible arity found on line 4
incompatible minus and plus code starting on lines 4 and 4


Regards,
Markus