summaryrefslogtreecommitdiff
path: root/drivers/cpufreq
diff options
context:
space:
mode:
authorMatthew Garrett <mjg@redhat.com>2011-07-14 01:58:32 +0400
committerDave Jones <davej@redhat.com>2011-07-14 02:29:49 +0400
commit92e03c41a415e8e9e8009a1f5bbb9036f3bfb2f4 (patch)
treef6f723abb63d5ee3a0dc041a541bda5f51746525 /drivers/cpufreq
parent8d86e5f91440aa56a5df516bf58fe3883552ad56 (diff)
downloadlinux-92e03c41a415e8e9e8009a1f5bbb9036f3bfb2f4.tar.xz
[CPUFREQ] Handle CPUs with different capabilities in acpi-cpufreq
acpi-cpufreq checks each CPU for aperf/mperf support, but only sets a global flag. This will cause errors if some CPUs in the system don't support the feature. Check boot_cpu_has() instead in order to make sure that all CPUs support it. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'drivers/cpufreq')
-rw-r--r--drivers/cpufreq/acpi-cpufreq.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 596d5dd32f41..56c6c6b4eb4d 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -655,7 +655,7 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
acpi_processor_notify_smm(THIS_MODULE);
/* Check for APERF/MPERF support in hardware */
- if (cpu_has(c, X86_FEATURE_APERFMPERF))
+ if (boot_cpu_has(X86_FEATURE_APERFMPERF))
acpi_cpufreq_driver.getavg = cpufreq_get_measured_perf;
pr_debug("CPU%u - ACPI performance management activated.\n", cpu);