cpufreq: ACPI: Only set boost MSRs on supported CPUs

Stop trying to set boost MSRs on CPUs that don't support boost.

This corrects a bug in the recent patch "Defer setting boost MSRs".

Fixes: 13fdbc8b8da6 ("cpufreq: ACPI: Defer setting boost MSRs")
Signed-off-by: Stuart Hayes <stuart.w.hayes@gmail.com>
Reported-by: Borislav Petkov (AMD) <bp@alien8.de>
Tested-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 74ef0e05ff7b3171a8c8fec520b14ff1f2b9cd37..78adfb2ffff6e7d09111304057a689cd08fbd310 100644 (file)
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -889,7 +889,8 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
        if (perf->states[0].core_frequency * 1000 != freq_table[0].frequency)
                pr_warn(FW_WARN "P-state 0 is not max freq\n");
 
-       set_boost(policy, acpi_cpufreq_driver.boost_enabled);
+       if (acpi_cpufreq_driver.set_boost)
+               set_boost(policy, acpi_cpufreq_driver.boost_enabled);
 
        return result;