intel_pstate: remove MSR test

x86_match_cpu will not match our cpuid unless APERF/MPERF flag is
set, so there is no need to do the manual check for this MSR.

Signed-off-by: Kristen Carlson Accardi <kristen@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 0 insertions, 14 deletions

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 872c5772c5d3..8006d86da397 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -1024,25 +1024,11 @@ static unsigned int force_load;
 
 static int intel_pstate_msrs_not_valid(void)
 {
-        /* Check that all the msr's we are using are valid. */
-        u64 aperf, mperf, tmp;
-
-        rdmsrl(MSR_IA32_APERF, aperf);
-        rdmsrl(MSR_IA32_MPERF, mperf);
-
         if (!pstate_funcs.get_max() ||
             !pstate_funcs.get_min() ||
             !pstate_funcs.get_turbo())
                 return -ENODEV;
 
-        rdmsrl(MSR_IA32_APERF, tmp);
-        if (!(tmp - aperf))
-                return -ENODEV;
-
-        rdmsrl(MSR_IA32_MPERF, tmp);
-        if (!(tmp - mperf))
-                return -ENODEV;
-
         return 0;
 }