linux-kernel - Re: [PATCH -rcu] asm-generic, kcsan: Add KCSAN instrumentation for bitops

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Message-ID: <CAK8P3a0p9Y8080T-RR2pp-p2_A0FBae7zB-kSq09sMZ_X7AOhw@mail.gmail.com>
Date:   Mon, 20 Jan 2020 15:40:24 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Marco Elver <elver@...gle.com>
Cc:     "Paul E. McKenney" <paulmck@...nel.org>,
        Andrey Konovalov <andreyknvl@...gle.com>,
        Alexander Potapenko <glider@...gle.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        kasan-dev <kasan-dev@...glegroups.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        christophe leroy <christophe.leroy@....fr>,
        Daniel Axtens <dja@...ens.net>,
        linux-arch <linux-arch@...r.kernel.org>
Subject: Re: [PATCH -rcu] asm-generic, kcsan: Add KCSAN instrumentation for bitops

On Mon, Jan 20, 2020 at 3:23 PM Marco Elver <elver@...gle.com> wrote:
> On Fri, 17 Jan 2020 at 14:14, Marco Elver <elver@...gle.com> wrote:
> > On Fri, 17 Jan 2020 at 13:25, Arnd Bergmann <arnd@...db.de> wrote:
> > > On Wed, Jan 15, 2020 at 9:50 PM Marco Elver <elver@...gle.com> wrote:

> > > If you can't find any, I would prefer having the simpler interface
> > > with just one set of annotations.
> >
> > That's fair enough. I'll prepare a v2 series that first introduces the
> > new header, and then applies it to the locations that seem obvious
> > candidates for having both checks.
>
> I've sent a new patch series which introduces instrumented.h:
>    http://lkml.kernel.org/r/20200120141927.114373-1-elver@google.com

Looks good to me, feel free to add

Acked-by: Arnd Bergmann <arnd@...db.de>

if you are merging this through your own tree or someone else's,
or let me know if I should put it into the asm-generic git tree.

     Arnd