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    Subject[RFC PATCH 01/19] cpufreq: do not expose cpufreq_governor_lock
    Date
    From: Michael Turquette <mturquette@baylibre.com>

    Since commit 3a91b069eabf ("cpufreq: governor: Quit work-handlers early if
    governor is stopped") cpufreq_governor_lock is not used anywhere outside
    cpufreq.c. Make it static again.

    Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
    Cc: Viresh Kumar <viresh.kumar@linaro.org>
    Signed-off-by: Juri Lelli <juri.lelli@arm.com>
    Signed-off-by: Michael Turquette <mturquette@baylibre.com>
    ---
    drivers/cpufreq/cpufreq.c | 2 +-
    drivers/cpufreq/cpufreq_governor.h | 2 --
    2 files changed, 1 insertion(+), 3 deletions(-)

    diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
    index c35e7da..7bdd845 100644
    --- a/drivers/cpufreq/cpufreq.c
    +++ b/drivers/cpufreq/cpufreq.c
    @@ -102,7 +102,7 @@ static LIST_HEAD(cpufreq_governor_list);
    static struct cpufreq_driver *cpufreq_driver;
    static DEFINE_PER_CPU(struct cpufreq_policy *, cpufreq_cpu_data);
    static DEFINE_RWLOCK(cpufreq_driver_lock);
    -DEFINE_MUTEX(cpufreq_governor_lock);
    +static DEFINE_MUTEX(cpufreq_governor_lock);

    /* Flag to suspend/resume CPUFreq governors */
    static bool cpufreq_suspended;
    diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
    index 91e767a..65b2893 100644
    --- a/drivers/cpufreq/cpufreq_governor.h
    +++ b/drivers/cpufreq/cpufreq_governor.h
    @@ -269,8 +269,6 @@ static ssize_t show_sampling_rate_min_gov_pol \
    return sprintf(buf, "%u\n", dbs_data->min_sampling_rate); \
    }

    -extern struct mutex cpufreq_governor_lock;
    -
    void gov_add_timers(struct cpufreq_policy *policy, unsigned int delay);
    void gov_cancel_work(struct cpu_common_dbs_info *shared);
    void dbs_check_cpu(struct dbs_data *dbs_data, int cpu);
    --
    2.2.2
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