ACPI / processor: Introduce invalid_phys_cpuid()

Introduce invalid_phys_cpuid() to identify cpu with invalid
physical ID, then used it as replacement of the direct comparisons
with PHYS_CPUID_INVALID.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index 62c846befb62..92a5f738e370 100644
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -170,7 +170,7 @@ static int acpi_processor_hotadd_init(struct acpi_processor *pr)
         acpi_status status;
         int ret;
 
-        if (pr->phys_id == PHYS_CPUID_INVALID)
+        if (invalid_phys_cpuid(pr->phys_id))
                 return -ENODEV;
 
         status = acpi_evaluate_integer(pr->handle, "_STA", NULL, &sta);
@@ -264,7 +264,7 @@ static int acpi_processor_get_info(struct acpi_device *device)
 
         pr->phys_id = acpi_get_phys_id(pr->handle, device_declaration,
                                         pr->acpi_id);
-        if (pr->phys_id == PHYS_CPUID_INVALID)
+        if (invalid_phys_cpuid(pr->phys_id))
                 acpi_handle_debug(pr->handle, "failed to get CPU physical ID.\n");
 
         pr->id = acpi_map_cpuid(pr->phys_id, pr->acpi_id);