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Subject[RFC 2/2] clocksource: don't suspend/resume when unused
Date
There is no point in calling suspend/resume for unused
clocksources.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
---
kernel/time/clocksource.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index 920a4da58eb0..baea4e42ae90 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -493,7 +493,7 @@ void clocksource_suspend(void)
struct clocksource *cs;

list_for_each_entry_reverse(cs, &clocksource_list, list)
- if (cs->suspend)
+ if (cs->suspend && (cs->flags & CLOCK_SOURCE_USED))
cs->suspend(cs);
}

@@ -505,7 +505,7 @@ void clocksource_resume(void)
struct clocksource *cs;

list_for_each_entry(cs, &clocksource_list, list)
- if (cs->resume)
+ if (cs->resume && (cs->flags & CLOCK_SOURCE_USED))
cs->resume(cs);

clocksource_resume_watchdog();
--
2.1.0


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