drivers/nvdimm/nd_perf.c:159:6: warning: symbol 
'nvdimm_pmu_free_hotplug_memory' was not declared. Should it be static?

Reported-by: kernel test robot <l...@intel.com>
Signed-off-by: kernel test robot <l...@intel.com>
---
 nd_perf.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvdimm/nd_perf.c b/drivers/nvdimm/nd_perf.c
index 4c49d1bc2a3c6..b129e5e702d59 100644
--- a/drivers/nvdimm/nd_perf.c
+++ b/drivers/nvdimm/nd_perf.c
@@ -156,7 +156,7 @@ static int nvdimm_pmu_cpu_hotplug_init(struct nvdimm_pmu 
*nd_pmu)
        return 0;
 }
 
-void nvdimm_pmu_free_hotplug_memory(struct nvdimm_pmu *nd_pmu)
+static void nvdimm_pmu_free_hotplug_memory(struct nvdimm_pmu *nd_pmu)
 {
        cpuhp_state_remove_instance_nocalls(nd_pmu->cpuhp_state, &nd_pmu->node);
        cpuhp_remove_multi_state(nd_pmu->cpuhp_state);

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