ACPI: processor: driver doesn't need to evaluate _PDC

Now that the early _PDC evaluation path knows how to correctly
evaluate _PDC on only physically present processors, there's no
need for the processor driver to evaluate it later when it loads.

To cover the hotplug case, push _PDC evaluation down into the
hotplug paths.

Cc: x86@kernel.org
Cc: Tony Luck <tony.luck@intel.com>
Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>

2 files changed, 0 insertions, 10 deletions

diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index ef34faad6003..626c75479868 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -317,8 +317,6 @@ acpi_processor_eval_pdc(acpi_handle handle, struct acpi_object_list *pdc_in)
         return status;
 }
 
-static int early_pdc_done;
-
 void acpi_processor_set_pdc(acpi_handle handle)
 {
         struct acpi_object_list *obj_list;
@@ -326,9 +324,6 @@ void acpi_processor_set_pdc(acpi_handle handle)
         if (arch_has_acpi_pdc() == false)
                 return;
 
-        if (early_pdc_done)
-                return;
-
         obj_list = acpi_processor_alloc_pdc();
         if (!obj_list)
                 return;
@@ -369,6 +364,4 @@ void __init acpi_early_processor_set_pdc(void)
         acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT,
                             ACPI_UINT32_MAX,
                             early_init_pdc, NULL, NULL, NULL);
-
-        early_pdc_done = 1;
 }
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index 7eedf7475f4e..b5658cdce27f 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -608,9 +608,6 @@ static int __cpuinit acpi_processor_add(struct acpi_device *device)
                 goto err_remove_fs;
         }
 
-        /* _PDC call should be done before doing anything else (if reqd.). */
-        acpi_processor_set_pdc(pr->handle);
-
 #ifdef CONFIG_CPU_FREQ
         acpi_processor_ppc_has_changed(pr, 0);
 #endif