Messages in this thread Patch in this message | | | From | Alexandre Belloni <> | Subject | [PATCH] clockevents: don't suspend/resume if unused | Date | Fri, 16 Jan 2015 10:05:51 +0100 |
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There is no point in calling suspend/resume for unused clockevents as they are already stopped and disabled.
Furthermore, it can take some time to wait for some IPs to stop counting.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Reported-by: Sylvain Rochet <sylvain.rochet@finsecur.com> --- kernel/time/clockevents.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c index 55449909f114..0eff982c1c11 100644 --- a/kernel/time/clockevents.c +++ b/kernel/time/clockevents.c @@ -525,7 +525,7 @@ void clockevents_suspend(void) struct clock_event_device *dev; list_for_each_entry_reverse(dev, &clockevent_devices, list) - if (dev->suspend) + if (dev->suspend && dev->mode != CLOCK_EVT_MODE_UNUSED) dev->suspend(dev); } @@ -537,7 +537,7 @@ void clockevents_resume(void) struct clock_event_device *dev; list_for_each_entry(dev, &clockevent_devices, list) - if (dev->resume) + if (dev->resume && dev->mode != CLOCK_EVT_MODE_UNUSED) dev->resume(dev); } -- 2.1.0
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