linux-kernel - Re: [PATCH] coccinelle: api: remove kobj_to

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Date:   Mon, 21 Jun 2021 20:47:38 +0200 (CEST)
From:   Julia Lawall <julia.lawall@...ia.fr>
To:     Denis Efremov <efremov@...ux.com>
cc:     Keith Busch <kbusch@...nel.org>, linux-kernel@...r.kernel.org,
        Christoph Hellwig <hch@....de>, Jens Axboe <axboe@...nel.dk>
Subject: Re: [PATCH] coccinelle: api: remove kobj_to_dev.cocci script



On Mon, 21 Jun 2021, Denis Efremov wrote:

>
>
> On 6/21/21 8:48 PM, Keith Busch wrote:
> > Using kobj_to_dev() instead of container_of() is not universally
> > accepted among maintainers as an improvement. The warning leads to
> > repeated patch submissions that won't be accepted. Remove the script.
> >
> > Cc: Christoph Hellwig <hch@....de>
> > Cc: Jens Axboe <axboe@...nel.dk>
> > Cc: Denis Efremov <efremov@...ux.com>
> > Cc: Julia Lawall <Julia.Lawall@...ia.fr>
> > Signed-off-by: Keith Busch <kbusch@...nel.org>
>
> Acked-by: Denis Efremov <efremov@...ux.com>

Applied.

>
> > ---
> >  scripts/coccinelle/api/kobj_to_dev.cocci | 45 ------------------------
> >  1 file changed, 45 deletions(-)
> >  delete mode 100644 scripts/coccinelle/api/kobj_to_dev.cocci
> >
> > diff --git a/scripts/coccinelle/api/kobj_to_dev.cocci b/scripts/coccinelle/api/kobj_to_dev.cocci
> > deleted file mode 100644
> > index cd5d31c6fe76..000000000000
> > --- a/scripts/coccinelle/api/kobj_to_dev.cocci
> > +++ /dev/null
> > @@ -1,45 +0,0 @@
> > -// SPDX-License-Identifier: GPL-2.0-only
> > -///
> > -/// Use kobj_to_dev() instead of container_of()
> > -///
> > -// Confidence: High
> > -// Copyright: (C) 2020 Denis Efremov ISPRAS
> > -// Options: --no-includes --include-headers
> > -//
> > -// Keywords: kobj_to_dev, container_of
> > -//
> > -
> > -virtual context
> > -virtual report
> > -virtual org
> > -virtual patch
> > -
> > -
> > -@r depends on !patch@
> > -expression ptr;
> > -symbol kobj;
> > -position p;
> > -@@
> > -
> > -* container_of(ptr, struct device, kobj)@p
> > -
> > -
> > -@...ends on patch@
> > -expression ptr;
> > -@@
> > -
> > -- container_of(ptr, struct device, kobj)
> > -+ kobj_to_dev(ptr)
> > -
> > -
> > -@...ipt:python depends on report@
> > -p << r.p;
> > -@@
> > -
> > -coccilib.report.print_report(p[0], "WARNING opportunity for kobj_to_dev()")
> > -
> > -@...ipt:python depends on org@
> > -p << r.p;
> > -@@
> > -
> > -coccilib.org.print_todo(p[0], "WARNING opportunity for kobj_to_dev()")
> >
>