Mark functions as static in kernel/events/core.c because they are not
used outside this file. Also, remove unused function in
kernel/events/core.c.

This eliminates the following warning in kernel/events/core.c:
kernel/events/core.c:182:6: warning: no previous prototype for 
‘update_perf_cpu_limits’ [-Wmissing-prototypes]
kernel/events/core.c:470:6: warning: no previous prototype for 
‘perf_cgroup_switch’ [-Wmissing-prototypes]
kernel/events/core.c:781:6: warning: no previous prototype for 
‘perf_cpu_hrtimer_cancel’ [-Wmissing-prototypes]
kernel/events/core.c:6574:13: warning: no previous prototype for 
‘perf_init_event’ [-Wmissing-prototypes]
kernel/events/core.c:7707:5: warning: no previous prototype for 
‘perf_event_init_context’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.khe...@gmail.com>
Reviewed-by: Josh Triplett <j...@joshtriplett.org>
---
 kernel/events/core.c |   36 ++++--------------------------------
 1 file changed, 4 insertions(+), 32 deletions(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 56003c6..672e51f 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -179,7 +179,7 @@ static int perf_sample_period_ns __read_mostly      = 
DEFAULT_SAMPLE_PERIOD_NS;
 static int perf_sample_allowed_ns __read_mostly =
        DEFAULT_SAMPLE_PERIOD_NS * DEFAULT_CPU_TIME_MAX_PERCENT / 100;
 
-void update_perf_cpu_limits(void)
+static void update_perf_cpu_limits(void)
 {
        u64 tmp = perf_sample_period_ns;
 
@@ -467,7 +467,7 @@ perf_cgroup_set_timestamp(struct task_struct *task,
  * mode SWOUT : schedule out everything
  * mode SWIN : schedule in based on cgroup for next
  */
-void perf_cgroup_switch(struct task_struct *task, int mode)
+static void perf_cgroup_switch(struct task_struct *task, int mode)
 {
        struct perf_cpu_context *cpuctx;
        struct pmu *pmu;
@@ -777,34 +777,6 @@ static enum hrtimer_restart 
perf_cpu_hrtimer_handler(struct hrtimer *hr)
        return ret;
 }
 
-/* CPU is going down */
-void perf_cpu_hrtimer_cancel(int cpu)
-{
-       struct perf_cpu_context *cpuctx;
-       struct pmu *pmu;
-       unsigned long flags;
-
-       if (WARN_ON(cpu != smp_processor_id()))
-               return;
-
-       local_irq_save(flags);
-
-       rcu_read_lock();
-
-       list_for_each_entry_rcu(pmu, &pmus, entry) {
-               cpuctx = this_cpu_ptr(pmu->pmu_cpu_context);
-
-               if (pmu->task_ctx_nr == perf_sw_context)
-                       continue;
-
-               hrtimer_cancel(&cpuctx->hrtimer);
-       }
-
-       rcu_read_unlock();
-
-       local_irq_restore(flags);
-}
-
 static void __perf_cpu_hrtimer_init(struct perf_cpu_context *cpuctx, int cpu)
 {
        struct hrtimer *hr = &cpuctx->hrtimer;
@@ -6571,7 +6543,7 @@ void perf_pmu_unregister(struct pmu *pmu)
        free_pmu_context(pmu);
 }
 
-struct pmu *perf_init_event(struct perf_event *event)
+static struct pmu *perf_init_event(struct perf_event *event)
 {
        struct pmu *pmu = NULL;
        int idx;
@@ -7704,7 +7676,7 @@ inherit_task_group(struct perf_event *event, struct 
task_struct *parent,
 /*
  * Initialize the perf_event context in task_struct
  */
-int perf_event_init_context(struct task_struct *child, int ctxn)
+static int perf_event_init_context(struct task_struct *child, int ctxn)
 {
        struct perf_event_context *child_ctx, *parent_ctx;
        struct perf_event_context *cloned_ctx;
-- 
1.7.9.5

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to