linux-kernel - Re: [PATCH 4/4] scripts/coccinelle: require coccinelle >= 1.0.4 on device_node

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Message-ID: <alpine.DEB.2.02.1606150807440.2231@localhost6.localdomain6>
Date:	Wed, 15 Jun 2016 08:08:41 +0200 (CEST)
From:	Julia Lawall <julia.lawall@...6.fr>
To:	"Luis R. Rodriguez" <mcgrof@...nel.org>
cc:	Gilles Muller <Gilles.Muller@...6.fr>, nicolas.palix@...g.fr,
	mmarek@...e.com, linux-kernel@...r.kernel.org,
	cocci@...teme.lip6.fr
Subject: Re: [PATCH 4/4] scripts/coccinelle: require coccinelle >= 1.0.4 on
 device_node_continue.cocci



On Tue, 14 Jun 2016, Luis R. Rodriguez wrote:

> Make use of the new kernel python requirements library to be able to
> specify coccinelle binary version requirements. The cocci file
> device_node_continue.cocci requires at least coccinelle 1.0.4.
> 
> Signed-off-by: Luis R. Rodriguez <mcgrof@...nel.org>
> ---
>  scripts/coccinelle/iterators/device_node_continue.cocci | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/scripts/coccinelle/iterators/device_node_continue.cocci b/scripts/coccinelle/iterators/device_node_continue.cocci
> index 38ab744a4037..b590de9418d1 100644
> --- a/scripts/coccinelle/iterators/device_node_continue.cocci
> +++ b/scripts/coccinelle/iterators/device_node_continue.cocci
> @@ -12,6 +12,19 @@ virtual context
>  virtual org
>  virtual report
>  
> +// This uses a conjunction, which requires at least coccinelle >= 1.0.4
> +@...ipt:python@
> +@@
> +
> +import sys
> +from lib import reqs
> +
> +req = reqs.Req()
> +req.coccinelle('1.0.4')
> +if not req.reqs_match():
> +    cocci.exit()
> +    sys.exit(1)

This doesn't look very appealing to me.  Shouldn't Coccinelle handle this 
itself?

julia

> +
>  @r exists@
>  expression e1,e2;
>  local idexpression n;
> -- 
> 2.8.2
> 
>