linux-kernel - Re: [Cocci] [RFC] Convert "resource->end - resource->start + 1" to resource

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Message-ID: <Pine.LNX.4.64.1106070706000.18329@ask.diku.dk>
Date:	Tue, 7 Jun 2011 07:07:35 +0200 (CEST)
From:	Julia Lawall <julia@...u.dk>
To:	Joe Perches <joe@...ches.com>
Cc:	H Hartley Sweeten <hartleys@...ionengravers.com>,
	cocci <cocci@...u.dk>, vinod.koul@...el.com,
	dan.j.williams@...el.com,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [Cocci] [RFC] Convert "resource->end - resource->start + 1" to
 resource_size(resource) via coccinelle

On Mon, 6 Jun 2011, Joe Perches wrote:

> On Mon, 2011-06-06 at 13:49 -0700, H Hartley Sweeten wrote:
> > Signed-off-by: H Hartley Sweeten <hsweeten@...ionengravers.com>
> > Cc: Dan Williams <dan.j.williams@...el.com> (supporter:ASYNCHRONOUS TRAN...)
> > Cc: Vinod Koul <vinod.koul@...el.com> (supporter:DMA GENERIC OFFLO...)
> 
> Perhaps do a treewide update via:
> 
> $ cat resource.cocci
> @@
> struct resource *ptr;
> @@
> 
> - ptr->end - ptr->start + 1
> + resource_size(ptr)
> 
> $ spatch -sp_file resource.cocci linux-2.6/

There might be some cases that have the +1 in a different place, or that 
have some parentheses.

I suspect that a lot of these non-uses of resource_size still exist.

julia
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