From: Dmitry Osipenko <digetx@gmail.com>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
Peter Crosthwaite <peter.crosthwaite@xilinx.com>,
QEMU Developers <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] [PATCH] arm_mptimer: Fix timer shutdown
Date: Thu, 02 Jul 2015 15:10:05 +0300 [thread overview]
Message-ID: <55952A1D.2030806@gmail.com> (raw)
In-Reply-To: <CAFEAcA_zE9UVS2L82-5Jhh_TKeWCQ8ms2KvFuZhhsfyk1PqJug@mail.gmail.com>
Hello Peter, thanks a lot for comment.
02.07.2015 12:27, Peter Maydell пишет:
> Thanks; this does look like a bug. This change will mean we
> call timer_del() even if the timer was already disabled,
> though, so I think it would be slightly better to rearrange
> the existing logic something like this:
>
> if ((old & 1) != (value & 1)) {
> if (value & 1) {
> if (tb->count == 0 && (tb->control & 2)) {
> tb->count = tb->load;
> }
> timerblock_reload(tb, 1);
> } else {
> timer_del(tb->timer);
> }
> }
>
> thanks
> -- PMM
>
Calling timer_del() twice is safe, but I agree that it would be better to avoid
it. I'll send V2.
--
Dmitry
next prev parent reply other threads:[~2015-07-02 12:10 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-01 21:15 [Qemu-devel] [PATCH] arm_mptimer: Fix timer shutdown Dmitry Osipenko
2015-07-02 9:27 ` Peter Maydell
2015-07-02 12:10 ` Dmitry Osipenko [this message]
2015-07-02 17:20 ` [Qemu-devel] [PATCH v2] " Dmitry Osipenko
2015-07-02 17:34 ` Peter Maydell
2015-07-02 17:43 ` Dmitry Osipenko
2015-07-02 17:52 ` Dmitry Osipenko
2015-07-02 18:09 ` Peter Maydell
2015-07-02 18:43 ` Dmitry Osipenko
2015-07-02 18:50 ` Dmitry Osipenko
2015-07-03 11:41 ` Dmitry Osipenko
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