[PATCH] acpi-cpufreq: Add a miss ifdef CONFIG_X86_ACPI_CPUFREQ_CPB

[Pan Xinhui]

If CONFIG_X86_ACPI_CPUFREQ_CPB has not been defined, the placeholder for
cpb is not needed. Add ifdef around it.

Signed-off-by: Pan Xinhui <xinhuix.pan@xxxxxxxxx>
---
 drivers/cpufreq/acpi-cpufreq.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index e7fcaa6..314a19e 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -884,7 +884,9 @@ static int acpi_cpufreq_resume(struct cpufreq_policy *policy)
 static struct freq_attr *acpi_cpufreq_attr[] = {
 	&cpufreq_freq_attr_scaling_available_freqs,
 	&freqdomain_cpus,
+#ifdef CONFIG_X86_ACPI_CPUFREQ_CPB
 	NULL,	/* this is a placeholder for cpb, do not remove */
+#endif
 	NULL,
 };
 
-- 
1.9.1
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