From: Julia Lawall <julia.lawall@inria.fr>
To: Markus Elfring <Markus.Elfring@web.de>
Cc: kernel-janitors@vger.kernel.org,
Michal Marek <michal.lkml@markovi.net>,
Gilles Muller <Gilles.Muller@lip6.fr>,
Dejin Zheng <zhengdejin5@gmail.com>,
Nicolas Palix <nicolas.palix@imag.fr>,
LKML <linux-kernel@vger.kernel.org>,
Coccinelle <cocci@systeme.lip6.fr>
Subject: Re: [Cocci] [PATCH] Coccinelle: api: Add SmPL script “use_devm_platform_get_and_ioremap_resource.cocci”
Date: Mon, 7 Sep 2020 16:18:56 +0200 (CEST) [thread overview]
Message-ID: <alpine.DEB.2.22.394.2009071618200.2476@hadrien> (raw)
In-Reply-To: <8aaa799f-0ec4-cfd0-854a-e1006d0d200a@web.de>
[-- Attachment #1: Type: text/plain, Size: 2381 bytes --]
On Mon, 7 Sep 2020, Markus Elfring wrote:
> >>>>>> +@replacement depends on patch@
> >>>>>> +expression base, device1, device2, index, private, resource;
> >>>>>> +@@
> >>>>>> +(
> >>>>>> +-resource = platform_get_resource(device1, IORESOURCE_MEM, index);
> >>>>>> + base =
> >>>>>> +- devm_ioremap_resource
> >>>>>> ++ devm_platform_get_and_ioremap_resource
> >>>>>> + (
> >>>>>> +- &
> >>>>>> + device1
> >>>>>> +- ->dev
> >>>>>> + ,
> >>>>>> +- resource
> >>>>>> ++ index, &resource
> >>>>>> + );
> >>>>>> +|
> >>>>>> +-private->res = platform_get_resource(device1, IORESOURCE_MEM, index);
> >>>>>> + base =
> >>>>>> +- devm_ioremap_resource
> >>>>>> ++ devm_platform_get_and_ioremap_resource
> >>>>>> + (device2,
> …
> >> Both source code change patterns from these branches of a SmPL disjunction
> >> work as I would expect it by the current Coccinelle software.
> >> Would you like to clarify any remaining related open issues?
> >
> > In one case the first argument of devm_ioremap_resource has to be changed
> > to produce the first argument of devm_platform_get_and_ioremap_resource
> > and in the other case there is no such change. "work as I would expect"
> > is not a proper explanation of why this is correct.
>
> Would like to achieve that a SmPL script (like the one which I present here)
> can help to adjust the implementation of the functions “mvebu_sei_probe”
> and “hi655x_pmic_probe” (for example) for the desired reuse of the wrapper
> function “devm_platform_get_and_ioremap_resource”?
>
>
> > Maybe you can point to some previous commits that have made the change in this way.
I looked at some of the provided examples, but none of them leaves the
first argument of devm_ioremap_resource unchanged.
julia
>
> Not yet for these source code examples.
>
> Some patches were contributed.
> https://lore.kernel.org/patchwork/project/lkml/list/?q=devm_platform_get_and_ioremap_resource&archive=both&state=*
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/log/?qt=grep&q=devm_platform_get_and_ioremap_resource
>
> Regards,
> Markus
>
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next prev parent reply other threads:[~2020-09-07 14:19 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-15 15:21 [Cocci] Checking the replacement of two specific function calls Markus Elfring
2020-04-15 17:52 ` Julia Lawall
2020-04-15 18:22 ` Markus Elfring
2020-04-16 7:12 ` Markus Elfring
2020-04-16 8:53 ` Julia Lawall
2020-04-16 9:11 ` Markus Elfring
2020-04-16 12:45 ` Julia Lawall
2020-04-16 14:15 ` Markus Elfring
2020-04-16 14:28 ` Julia Lawall
2020-04-17 6:08 ` Markus Elfring
2020-04-17 14:51 ` Markus Elfring
2020-04-17 18:56 ` Markus Elfring
2020-04-20 6:30 ` Markus Elfring
2020-04-16 14:30 ` Markus Elfring
2020-06-17 18:20 ` Markus Elfring
2020-04-16 12:26 ` Markus Elfring
2020-09-07 11:43 ` [Cocci] [PATCH] Coccinelle: api: Add SmPL script “use_devm_platform_get_and_ioremap_resource.cocci” Markus Elfring
2020-09-07 12:00 ` Julia Lawall
2020-09-07 13:05 ` Markus Elfring
2020-09-07 13:11 ` Julia Lawall
[not found] ` <46d314d5-822e-3d73-2d70-015794556e56@web.de>
2020-09-07 13:46 ` Julia Lawall
[not found] ` <8aaa799f-0ec4-cfd0-854a-e1006d0d200a@web.de>
2020-09-07 14:18 ` Julia Lawall [this message]
2020-09-07 16:54 ` [Cocci] [PATCH v2] " Markus Elfring
2020-09-07 17:03 ` Julia Lawall
[not found] ` <8fb7782c-538b-b657-af13-da71124e6afa@web.de>
2020-09-07 17:31 ` Julia Lawall
[not found] ` <01ea8faa-6fca-a91e-2b5d-378262dcc671@web.de>
2023-01-06 13:04 ` [cocci] [PATCH v3] " Markus Elfring
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