Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (34 commits)
  ACPI, i915: Register ACPI video even when not modesetting
  Revert "ACPICA: delete check for AML access to port 0x81-83"
  I/O port protection: update for windows compatibility.
  sony-laptop: always try to unblock rfkill on load
  sony-laptop: fix bogus error message display on resume
  ACPI: EC: Fix ACPI EC resume non-query interrupt message
  sony-laptop: SNC input event 38 fix
  sony-laptop: SNC 127 Initialization Fix
  sony-laptop: Duplicate SNC 127 Event Fix
  ACPI: prevent processor.max_cstate=0 boot crash
  ACPI/hpet: prevent boot hang when hpet=force used on ICH-4M
  ACPI: delete obsolete "bus master activity" proc field
  ACPI: idle: mark_tsc_unstable() at init-time, not run-time
  ACPI: add /sys/firmware/acpi/interrupts/sci_not counter
  ACPI video: fix an error when the brightness levels on AC and on Battery are same
  acpi-cpufreq: Do not let get_measured perf depend on internal variable
  acpi-cpufreq: style-only: add parens to math expression
  acpi-cpufreq: Cleanup: Use printk_once
  x86, acpi_cpufreq: Fix the NULL pointer dereference in get_measured_perf
  thinkpad-acpi: bump up version to 0.23
  ...

1 files changed, 16 insertions, 14 deletions

diff --git a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
index ecdb682ab516..208ecf6643df 100644
--- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -65,14 +65,18 @@ enum {
 struct acpi_cpufreq_data {
         struct acpi_processor_performance *acpi_data;
         struct cpufreq_frequency_table *freq_table;
-        unsigned int max_freq;
         unsigned int resume;
         unsigned int cpu_feature;
-        u64 saved_aperf, saved_mperf;
 };
 
 static DEFINE_PER_CPU(struct acpi_cpufreq_data *, drv_data);
 
+struct acpi_msr_data {
+        u64 saved_aperf, saved_mperf;
+};
+
+static DEFINE_PER_CPU(struct acpi_msr_data, msr_data);
+
 DEFINE_TRACE(power_mark);
 
 /* acpi_perf_data is a pointer to percpu data. */
@@ -287,11 +291,11 @@ static unsigned int get_measured_perf(struct cpufreq_policy *policy,
                 return 0;
 
         cur.aperf.whole = readin.aperf.whole -
-                                per_cpu(drv_data, cpu)->saved_aperf;
+                                per_cpu(msr_data, cpu).saved_aperf;
         cur.mperf.whole = readin.mperf.whole -
-                                per_cpu(drv_data, cpu)->saved_mperf;
-        per_cpu(drv_data, cpu)->saved_aperf = readin.aperf.whole;
-        per_cpu(drv_data, cpu)->saved_mperf = readin.mperf.whole;
+                                per_cpu(msr_data, cpu).saved_mperf;
+        per_cpu(msr_data, cpu).saved_aperf = readin.aperf.whole;
+        per_cpu(msr_data, cpu).saved_mperf = readin.mperf.whole;
 
 #ifdef __i386__
         /*
@@ -335,7 +339,7 @@ static unsigned int get_measured_perf(struct cpufreq_policy *policy,
 
 #endif
 
-        retval = per_cpu(drv_data, policy->cpu)->max_freq * perf_percent / 100;
+        retval = (policy->cpuinfo.max_freq * perf_percent) / 100;
 
         return retval;
 }
@@ -688,16 +692,11 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
         /* Check for high latency (>20uS) from buggy BIOSes, like on T42 */
         if (perf->control_register.space_id == ACPI_ADR_SPACE_FIXED_HARDWARE &&
             policy->cpuinfo.transition_latency > 20 * 1000) {
-                static int print_once;
                 policy->cpuinfo.transition_latency = 20 * 1000;
-                if (!print_once) {
-                        print_once = 1;
-                        printk(KERN_INFO "Capping off P-state tranision latency"
-                                " at 20 uS\n");
-                }
+                        printk_once(KERN_INFO "Capping off P-state tranision"
+                                    " latency at 20 uS\n");
         }
 
-        data->max_freq = perf->states[0].core_frequency * 1000;
         /* table init */
         for (i = 0; i < perf->state_count; i++) {
                 if (i > 0 && perf->states[i].core_frequency >=
@@ -716,6 +715,9 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
         if (result)
                 goto err_freqfree;
 
+        if (perf->states[0].core_frequency * 1000 != policy->cpuinfo.max_freq)
+                printk(KERN_WARNING FW_WARN "P-state 0 is not max freq\n");
+
         switch (perf->control_register.space_id) {
         case ACPI_ADR_SPACE_SYSTEM_IO:
                 /* Current speed is unknown and not detectable by IO port */