1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 949ba03959..015689d295 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -684,7 +684,7 @@ static void acpi_processor_notify(acpi_handle handle, u32 event, void *data)
 {
         struct acpi_processor *pr = data;
         struct acpi_device *device = NULL;
-
+        int saved;
 
         if (!pr)
                 return;
@@ -694,7 +694,10 @@ static void acpi_processor_notify(acpi_handle handle, u32 event, void *data)
 
         switch (event) {
         case ACPI_PROCESSOR_NOTIFY_PERFORMANCE:
+                saved = pr->performance_platform_limit;
                 acpi_processor_ppc_has_changed(pr);
+                if (saved == pr->performance_platform_limit)
+                        break;
                 acpi_bus_generate_proc_event(device, event,
                                         pr->performance_platform_limit);
                 acpi_bus_generate_netlink_event(device->pnp.device_class,