Xen / ACPI / processor: use invalid_logical_cpuid()

Use invalid_logical_cpuid(pr->id) instead of direct comparison.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
CC: Boris Ostrovsky <boris.ostrovsky@oracle.com>
CC: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/xen/xen-acpi-cpuhotplug.c b/drivers/xen/xen-acpi-cpuhotplug.c
index 3e62ee4..5a62aa0 100644 (file)
--- a/drivers/xen/xen-acpi-cpuhotplug.c
+++ b/drivers/xen/xen-acpi-cpuhotplug.c
@@ -77,7 +77,7 @@ static int xen_acpi_processor_enable(struct acpi_device *device)
 
        pr->id = xen_pcpu_id(pr->acpi_id);
 
-       if ((int)pr->id < 0)
+       if (invalid_logical_cpuid(pr->id))
                /* This cpu is not presented at hypervisor, try to hotadd it */
                if (ACPI_FAILURE(xen_acpi_cpu_hotadd(pr))) {
                        pr_err(PREFIX "Hotadd CPU (acpi_id = %d) failed.\n",
@@ -226,7 +226,7 @@ static acpi_status xen_acpi_cpu_hotadd(struct acpi_processor *pr)
                return AE_ERROR;
 
        pr->id = xen_hotadd_cpu(pr);
-       if ((int)pr->id < 0)
+       if (invalid_logical_cpuid(pr->id))
                return AE_ERROR;
 
        /*