A clockevent device's rate should be configured before or at registration
and changed afterwards through clockevents_update_freq() only.

For the configuration at registration, we already have

Right now, there are no clockevents_config() users outside of the
clockevents core.

To mitigiate the risk of drivers errorneously reconfiguring their rates
through clockevents_config() *after* device registration, make
clockevents_config() static.

Signed-off-by: Nicolai Stange <nicsta...@gmail.com>
 include/linux/clockchips.h | 1 -
 kernel/time/clockevents.c  | 2 +-
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/include/linux/clockchips.h b/include/linux/clockchips.h
index 0d442e3..a116926 100644
--- a/include/linux/clockchips.h
+++ b/include/linux/clockchips.h
@@ -182,7 +182,6 @@ extern u64 clockevent_delta2ns(unsigned long latch, struct 
clock_event_device *e
 extern void clockevents_register_device(struct clock_event_device *dev);
 extern int clockevents_unbind_device(struct clock_event_device *ced, int cpu);
-extern void clockevents_config(struct clock_event_device *dev, u32 freq);
 extern void clockevents_config_and_register(struct clock_event_device *dev,
                                            u32 freq, unsigned long min_delta,
                                            unsigned long max_delta);
diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index 2c5bc77..e73ac7f 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -468,7 +468,7 @@ void clockevents_register_device(struct clock_event_device 
-void clockevents_config(struct clock_event_device *dev, u32 freq)
+static void clockevents_config(struct clock_event_device *dev, u32 freq)
        u64 sec;

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