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| author | Viresh Kumar <viresh.kumar@linaro.org> | 2013-10-03 21:26:48 +0530 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-10-30 01:21:22 +0100 |
| commit | fb11c9c63f995afbe0e909f061d9866a722cb4bf (patch) | |
| tree | 2a0f0fce4e7d3bd66cffe9d8282d5e618305b667 /drivers/cpuidle/cpuidle.c | |
| parent | 9b29a86f04f87cdb9eaacadf2e2d33a55af1c7cc (diff) | |
| download | linux-next-fb11c9c63f995afbe0e909f061d9866a722cb4bf.tar.gz | |
cpuidle: reduce code duplication inside cpuidle_idle_call()
We are doing this twice in cpuidle_idle_call() routine:
drv->states[next_state].flags & CPUIDLE_FLAG_TIMER_STOP
Would be better if we actually store this in a local variable and
use that. That reduces code duplication and likely makes this piece
of code run faster (in case the compiler wasn't able to optimize it
earlier)
[rjw: Cast the result of bitwise AND to bool explicitly using !!]
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpuidle/cpuidle.c')
| -rw-r--r-- | drivers/cpuidle/cpuidle.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c index 518b542cad54..86e805986d6f 100644 --- a/drivers/cpuidle/cpuidle.c +++ b/drivers/cpuidle/cpuidle.c @@ -118,6 +118,7 @@ int cpuidle_idle_call(void) struct cpuidle_device *dev = __this_cpu_read(cpuidle_devices); struct cpuidle_driver *drv; int next_state, entered_state; + bool broadcast; if (off || !initialized) return -ENODEV; @@ -141,7 +142,9 @@ int cpuidle_idle_call(void) trace_cpu_idle_rcuidle(next_state, dev->cpu); - if (drv->states[next_state].flags & CPUIDLE_FLAG_TIMER_STOP) + broadcast = !!(drv->states[next_state].flags & CPUIDLE_FLAG_TIMER_STOP); + + if (broadcast) clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &dev->cpu); @@ -151,7 +154,7 @@ int cpuidle_idle_call(void) else entered_state = cpuidle_enter_state(dev, drv, next_state); - if (drv->states[next_state].flags & CPUIDLE_FLAG_TIMER_STOP) + if (broadcast) clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &dev->cpu); |