diff options
| author | Hanjun Guo <hanjun.guo@linaro.org> | 2015-05-11 07:17:13 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-05-14 00:28:14 +0300 |
| commit | 25956b6612601cf36022392ffa83f6bf97939bcd (patch) | |
| tree | f3b8efbce1c45c7ccf5796e38046f13477d22a76 /drivers/acpi/processor_pdc.c | |
| parent | 030bbdbf4c833bc69f502eae58498bc5572db736 (diff) | |
| download | linux-25956b6612601cf36022392ffa83f6bf97939bcd.tar.xz | |
ACPI / processor: Introduce invalid_logical_cpuid()
In ACPI processor drivers, we use direct comparisons of cpu logical
id with -1 which are error prone in case logical cpuid is accidentally
assinged an error code and prevents us from returning an error-encoding
cpuid directly in some cases.
So introduce invalid_logical_cpuid() to identify cpu with invalid
logical cpu num, then it will be used to replace the direct comparisons
with -1.
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/processor_pdc.c')
| -rw-r--r-- | drivers/acpi/processor_pdc.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/acpi/processor_pdc.c b/drivers/acpi/processor_pdc.c index e5dd80800930..7cfbda4d7c51 100644 --- a/drivers/acpi/processor_pdc.c +++ b/drivers/acpi/processor_pdc.c @@ -52,10 +52,7 @@ static bool __init processor_physically_present(acpi_handle handle) type = (acpi_type == ACPI_TYPE_DEVICE) ? 1 : 0; cpuid = acpi_get_cpuid(handle, type, acpi_id); - if (cpuid == -1) - return false; - - return true; + return !invalid_logical_cpuid(cpuid); } static void acpi_set_pdc_bits(u32 *buf) |