linux-kernel - Re: [PATCH v9 10/17] arm: tegra20: cpuidle: Make abort

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Message-ID: <20200221152515.GM10516@linaro.org>
Date:   Fri, 21 Feb 2020 16:25:15 +0100
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     Dmitry Osipenko <digetx@...il.com>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Peter De Schrijver <pdeschrijver@...dia.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Michał Mirosław <mirq-linux@...e.qmqm.pl>,
        Jasper Korten <jja2000@...il.com>,
        David Heidelberg <david@...t.cz>,
        Peter Geis <pgwipeout@...il.com>, linux-pm@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v9 10/17] arm: tegra20: cpuidle: Make abort_flag atomic

On Thu, Feb 13, 2020 at 02:51:27AM +0300, Dmitry Osipenko wrote:
> Replace memory accessors with atomic API just to make code consistent
> with the abort_barrier. The new variant may be even more correct now since
> atomic_read() will prevent compiler from generating wrong things like
> carrying abort_flag value in a register instead of re-fetching it from
> memory.
> 
> Acked-by: Peter De Schrijver <pdeschrijver@...dia.com>
> Tested-by: Peter Geis <pgwipeout@...il.com>
> Tested-by: Jasper Korten <jja2000@...il.com>
> Tested-by: David Heidelberg <david@...t.cz>
> Signed-off-by: Dmitry Osipenko <digetx@...il.com>

Acked-by: Daniel Lezcano <daniel.lezcano@...aro.org>