Merge branches 'acerhdf', 'acpi-pci-bind', 'bjorn-pci-root', 'bugzilla-12904', 'bugzi...

[platform/adaptation/renesas_rcar/renesas_kernel.git] / drivers / acpi / processor_core.c

diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index cabff4c..84e0f3c 100644 (file)
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -649,7 +649,16 @@ static int acpi_processor_get_info(struct acpi_device *device)
                        return -ENODEV;
                }
        }
-
+       /*
+        * On some boxes several processors use the same processor bus id.
+        * But they are located in different scope. For example:
+        * \_SB.SCK0.CPU0
+        * \_SB.SCK1.CPU0
+        * Rename the processor device bus id. And the new bus id will be
+        * generated as the following format:
+        * CPU+CPU ID.
+        */
+       sprintf(acpi_device_bid(device), "CPU%X", pr->id);
        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Processor [%d:%d]\n", pr->id,
                          pr->acpi_id));
 
@@ -731,6 +740,8 @@ static int __cpuinit acpi_processor_start(struct acpi_device *device)
        /* _PDC call should be done before doing anything else (if reqd.). */
        arch_acpi_processor_init_pdc(pr);
        acpi_processor_set_pdc(pr);
+       arch_acpi_processor_cleanup_pdc(pr);
+
 #ifdef CONFIG_CPU_FREQ
        acpi_processor_ppc_has_changed(pr);
 #endif
@@ -844,7 +855,7 @@ static int acpi_processor_add(struct acpi_device *device)
        if (!pr)
                return -ENOMEM;
 
-       if (!alloc_cpumask_var(&pr->throttling.shared_cpu_map, GFP_KERNEL)) {
+       if (!zalloc_cpumask_var(&pr->throttling.shared_cpu_map, GFP_KERNEL)) {
                kfree(pr);
                return -ENOMEM;
        }