1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 04dd5f46803d..0c50637e6bda 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -1746,6 +1746,10 @@ static void intel_pstate_update_util_pid(struct update_util_data *data,
         struct cpudata *cpu = container_of(data, struct cpudata, update_util);
         u64 delta_ns = time - cpu->sample.time;
 
+        /* Don't allow remote callbacks */
+        if (smp_processor_id() != cpu->cpu)
+                return;
+
         if ((s64)delta_ns < pid_params.sample_rate_ns)
                 return;
 
@@ -1763,6 +1767,10 @@ static void intel_pstate_update_util(struct update_util_data *data, u64 time,
         struct cpudata *cpu = container_of(data, struct cpudata, update_util);
         u64 delta_ns;
 
+        /* Don't allow remote callbacks */
+        if (smp_processor_id() != cpu->cpu)
+                return;
+
         if (flags & SCHED_CPUFREQ_IOWAIT) {
                 cpu->iowait_boost = int_tofp(1);
         } else if (cpu->iowait_boost) {