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cpufreq: stats: Mark few conditionals with unlikely() 

Since this will be part of the scheduler's hotpath in some cases, use
unlikely() for few of the obvious conditionals.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Viresh Kumar 2020-10-05 13:26:03 +05:30 committed by Rafael J. Wysocki
parent 381abb942a
commit 4958b46efb
1 changed files with 2 additions and 2 deletions
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4
drivers/cpufreq/cpufreq_stats.c
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@ -260,7 +260,7 @@ void cpufreq_stats_record_transition(struct cpufreq_policy *policy,
struct cpufreq_stats *stats = policy->stats;
int old_index, new_index;
if (!stats)
if (unlikely(!stats))
return;
if (unlikely(READ_ONCE(stats->reset_pending)))
@ -270,7 +270,7 @@ void cpufreq_stats_record_transition(struct cpufreq_policy *policy,
new_index = freq_table_get_index(stats, new_freq);
/* We can't do stats->time_in_state[-1]= .. */
if (old_index == -1 || new_index == -1 || old_index == new_index)
if (unlikely(old_index == -1 || new_index == -1 || old_index == new_index))
return;
cpufreq_stats_update(stats, stats->last_time);