Merge branch 'wip-2.6.34' into old-private-masterarchived-private-master

5 files changed, 178 insertions, 46 deletions

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index ff57c40e9b8b..75d293eeb3ee 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -64,14 +64,14 @@ static DEFINE_SPINLOCK(cpufreq_driver_lock);
  * - Lock should not be held across
  *     __cpufreq_governor(data, CPUFREQ_GOV_STOP);
  */
-static DEFINE_PER_CPU(int, policy_cpu);
+static DEFINE_PER_CPU(int, cpufreq_policy_cpu);
 static DEFINE_PER_CPU(struct rw_semaphore, cpu_policy_rwsem);
 
 #define lock_policy_rwsem(mode, cpu)                                    \
 int lock_policy_rwsem_##mode                                            \
 (int cpu)                                                               \
 {                                                                       \
-        int policy_cpu = per_cpu(policy_cpu, cpu);                      \
+        int policy_cpu = per_cpu(cpufreq_policy_cpu, cpu);              \
         BUG_ON(policy_cpu == -1);                                       \
         down_##mode(&per_cpu(cpu_policy_rwsem, policy_cpu));            \
         if (unlikely(!cpu_online(cpu))) {                               \
@@ -90,7 +90,7 @@ EXPORT_SYMBOL_GPL(lock_policy_rwsem_write);
 
 void unlock_policy_rwsem_read(int cpu)
 {
-        int policy_cpu = per_cpu(policy_cpu, cpu);
+        int policy_cpu = per_cpu(cpufreq_policy_cpu, cpu);
         BUG_ON(policy_cpu == -1);
         up_read(&per_cpu(cpu_policy_rwsem, policy_cpu));
 }
@@ -98,7 +98,7 @@ EXPORT_SYMBOL_GPL(unlock_policy_rwsem_read);
 
 void unlock_policy_rwsem_write(int cpu)
 {
-        int policy_cpu = per_cpu(policy_cpu, cpu);
+        int policy_cpu = per_cpu(cpufreq_policy_cpu, cpu);
         BUG_ON(policy_cpu == -1);
         up_write(&per_cpu(cpu_policy_rwsem, policy_cpu));
 }
@@ -647,6 +647,21 @@ static ssize_t show_scaling_setspeed(struct cpufreq_policy *policy, char *buf)
         return policy->governor->show_setspeed(policy, buf);
 }
 
+/**
+ * show_scaling_driver - show the current cpufreq HW/BIOS limitation
+ */
+static ssize_t show_bios_limit(struct cpufreq_policy *policy, char *buf)
+{
+        unsigned int limit;
+        int ret;
+        if (cpufreq_driver->bios_limit) {
+                ret = cpufreq_driver->bios_limit(policy->cpu, &limit);
+                if (!ret)
+                        return sprintf(buf, "%u\n", limit);
+        }
+        return sprintf(buf, "%u\n", policy->cpuinfo.max_freq);
+}
+
 #define define_one_ro(_name) \
 static struct freq_attr _name = \
 __ATTR(_name, 0444, show_##_name, NULL)
@@ -666,6 +681,7 @@ define_one_ro(cpuinfo_transition_latency);
 define_one_ro(scaling_available_governors);
 define_one_ro(scaling_driver);
 define_one_ro(scaling_cur_freq);
+define_one_ro(bios_limit);
 define_one_ro(related_cpus);
 define_one_ro(affected_cpus);
 define_one_rw(scaling_min_freq);
@@ -750,7 +766,7 @@ static void cpufreq_sysfs_release(struct kobject *kobj)
         complete(&policy->kobj_unregister);
 }
 
-static struct sysfs_ops sysfs_ops = {
+static const struct sysfs_ops sysfs_ops = {
         .show   = show,
         .store  = store,
 };
@@ -767,8 +783,9 @@ static struct kobj_type ktype_cpufreq = {
  *   0:        Success
  *   Positive: When we have a managed CPU and the sysfs got symlinked
  */
-int cpufreq_add_dev_policy(unsigned int cpu, struct cpufreq_policy *policy,
-                struct sys_device *sys_dev)
+static int cpufreq_add_dev_policy(unsigned int cpu,
+                                  struct cpufreq_policy *policy,
+                                  struct sys_device *sys_dev)
 {
         int ret = 0;
 #ifdef CONFIG_SMP
@@ -801,7 +818,7 @@ int cpufreq_add_dev_policy(unsigned int cpu, struct cpufreq_policy *policy,
 
                         /* Set proper policy_cpu */
                         unlock_policy_rwsem_write(cpu);
-                        per_cpu(policy_cpu, cpu) = managed_policy->cpu;
+                        per_cpu(cpufreq_policy_cpu, cpu) = managed_policy->cpu;
 
                         if (lock_policy_rwsem_write(cpu) < 0) {
                                 /* Should not go through policy unlock path */
@@ -842,7 +859,8 @@ int cpufreq_add_dev_policy(unsigned int cpu, struct cpufreq_policy *policy,
 
 
 /* symlink affected CPUs */
-int cpufreq_add_dev_symlink(unsigned int cpu, struct cpufreq_policy *policy)
+static int cpufreq_add_dev_symlink(unsigned int cpu,
+                                   struct cpufreq_policy *policy)
 {
         unsigned int j;
         int ret = 0;
@@ -869,8 +887,9 @@ int cpufreq_add_dev_symlink(unsigned int cpu, struct cpufreq_policy *policy)
         return ret;
 }
 
-int cpufreq_add_dev_interface(unsigned int cpu, struct cpufreq_policy *policy,
-                struct sys_device *sys_dev)
+static int cpufreq_add_dev_interface(unsigned int cpu,
+                                     struct cpufreq_policy *policy,
+                                     struct sys_device *sys_dev)
 {
         struct cpufreq_policy new_policy;
         struct freq_attr **drv_attr;
@@ -902,13 +921,18 @@ int cpufreq_add_dev_interface(unsigned int cpu, struct cpufreq_policy *policy,
                 if (ret)
                         goto err_out_kobj_put;
         }
+        if (cpufreq_driver->bios_limit) {
+                ret = sysfs_create_file(&policy->kobj, &bios_limit.attr);
+                if (ret)
+                        goto err_out_kobj_put;
+        }
 
         spin_lock_irqsave(&cpufreq_driver_lock, flags);
         for_each_cpu(j, policy->cpus) {
         if (!cpu_online(j))
                 continue;
                 per_cpu(cpufreq_cpu_data, j) = policy;
-                per_cpu(policy_cpu, j) = policy->cpu;
+                per_cpu(cpufreq_policy_cpu, j) = policy->cpu;
         }
         spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
 
@@ -996,7 +1020,7 @@ static int cpufreq_add_dev(struct sys_device *sys_dev)
         cpumask_copy(policy->cpus, cpumask_of(cpu));
 
         /* Initially set CPU itself as the policy_cpu */
-        per_cpu(policy_cpu, cpu) = cpu;
+        per_cpu(cpufreq_policy_cpu, cpu) = cpu;
         ret = (lock_policy_rwsem_write(cpu) < 0);
         WARN_ON(ret);
 
@@ -1089,6 +1113,8 @@ static int __cpufreq_remove_dev(struct sys_device *sys_dev)
         unsigned int cpu = sys_dev->id;
         unsigned long flags;
         struct cpufreq_policy *data;
+        struct kobject *kobj;
+        struct completion *cmp;
 #ifdef CONFIG_SMP
         struct sys_device *cpu_sys_dev;
         unsigned int j;
@@ -1117,10 +1143,11 @@ static int __cpufreq_remove_dev(struct sys_device *sys_dev)
                 dprintk("removing link\n");
                 cpumask_clear_cpu(cpu, data->cpus);
                 spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
-                sysfs_remove_link(&sys_dev->kobj, "cpufreq");
+                kobj = &sys_dev->kobj;
                 cpufreq_cpu_put(data);
                 cpufreq_debug_enable_ratelimit();
                 unlock_policy_rwsem_write(cpu);
+                sysfs_remove_link(kobj, "cpufreq");
                 return 0;
         }
 #endif
@@ -1157,7 +1184,10 @@ static int __cpufreq_remove_dev(struct sys_device *sys_dev)
                                 data->governor->name, CPUFREQ_NAME_LEN);
 #endif
                         cpu_sys_dev = get_cpu_sysdev(j);
-                        sysfs_remove_link(&cpu_sys_dev->kobj, "cpufreq");
+                        kobj = &cpu_sys_dev->kobj;
+                        unlock_policy_rwsem_write(cpu);
+                        sysfs_remove_link(kobj, "cpufreq");
+                        lock_policy_rwsem_write(cpu);
                         cpufreq_cpu_put(data);
                 }
         }
@@ -1168,19 +1198,22 @@ static int __cpufreq_remove_dev(struct sys_device *sys_dev)
         if (cpufreq_driver->target)
                 __cpufreq_governor(data, CPUFREQ_GOV_STOP);
 
-        kobject_put(&data->kobj);
+        kobj = &data->kobj;
+        cmp = &data->kobj_unregister;
+        unlock_policy_rwsem_write(cpu);
+        kobject_put(kobj);
 
         /* we need to make sure that the underlying kobj is actually
          * not referenced anymore by anybody before we proceed with
          * unloading.
          */
         dprintk("waiting for dropping of refcount\n");
-        wait_for_completion(&data->kobj_unregister);
+        wait_for_completion(cmp);
         dprintk("wait complete\n");
 
+        lock_policy_rwsem_write(cpu);
         if (cpufreq_driver->exit)
                 cpufreq_driver->exit(data);
-
         unlock_policy_rwsem_write(cpu);
 
         free_cpumask_var(data->related_cpus);
@@ -1978,7 +2011,7 @@ static int __init cpufreq_core_init(void)
         int cpu;
 
         for_each_possible_cpu(cpu) {
-                per_cpu(policy_cpu, cpu) = -1;
+                per_cpu(cpufreq_policy_cpu, cpu) = -1;
                 init_rwsem(&per_cpu(cpu_policy_rwsem, cpu));
         }
 
diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
index c7b081b839ff..3a147874a465 100644
--- a/drivers/cpufreq/cpufreq_conservative.c
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -164,20 +164,22 @@ static struct notifier_block dbs_cpufreq_notifier_block = {
 };
 
 /************************** sysfs interface ************************/
-static ssize_t show_sampling_rate_max(struct cpufreq_policy *policy, char *buf)
+static ssize_t show_sampling_rate_max(struct kobject *kobj,
+                                      struct attribute *attr, char *buf)
 {
         printk_once(KERN_INFO "CPUFREQ: conservative sampling_rate_max "
                     "sysfs file is deprecated - used by: %s\n", current->comm);
         return sprintf(buf, "%u\n", -1U);
 }
 
-static ssize_t show_sampling_rate_min(struct cpufreq_policy *policy, char *buf)
+static ssize_t show_sampling_rate_min(struct kobject *kobj,
+                                      struct attribute *attr, char *buf)
 {
         return sprintf(buf, "%u\n", min_sampling_rate);
 }
 
 #define define_one_ro(_name)            \
-static struct freq_attr _name =         \
+static struct global_attr _name =       \
 __ATTR(_name, 0444, show_##_name, NULL)
 
 define_one_ro(sampling_rate_max);
@@ -186,7 +188,7 @@ define_one_ro(sampling_rate_min);
 /* cpufreq_conservative Governor Tunables */
 #define show_one(file_name, object)                                     \
 static ssize_t show_##file_name                                         \
-(struct cpufreq_policy *unused, char *buf)                              \
+(struct kobject *kobj, struct attribute *attr, char *buf)               \
 {                                                                       \
         return sprintf(buf, "%u\n", dbs_tuners_ins.object);             \
 }
@@ -197,8 +199,40 @@ show_one(down_threshold, down_threshold);
 show_one(ignore_nice_load, ignore_nice);
 show_one(freq_step, freq_step);
 
-static ssize_t store_sampling_down_factor(struct cpufreq_policy *unused,
-                const char *buf, size_t count)
+/*** delete after deprecation time ***/
+#define DEPRECATION_MSG(file_name)                                      \
+        printk_once(KERN_INFO "CPUFREQ: Per core conservative sysfs "   \
+                "interface is deprecated - " #file_name "\n");
+
+#define show_one_old(file_name)                                         \
+static ssize_t show_##file_name##_old                                   \
+(struct cpufreq_policy *unused, char *buf)                              \
+{                                                                       \
+        printk_once(KERN_INFO "CPUFREQ: Per core conservative sysfs "   \
+                "interface is deprecated - " #file_name "\n");          \
+        return show_##file_name(NULL, NULL, buf);                       \
+}
+show_one_old(sampling_rate);
+show_one_old(sampling_down_factor);
+show_one_old(up_threshold);
+show_one_old(down_threshold);
+show_one_old(ignore_nice_load);
+show_one_old(freq_step);
+show_one_old(sampling_rate_min);
+show_one_old(sampling_rate_max);
+
+#define define_one_ro_old(object, _name)        \
+static struct freq_attr object =                \
+__ATTR(_name, 0444, show_##_name##_old, NULL)
+
+define_one_ro_old(sampling_rate_min_old, sampling_rate_min);
+define_one_ro_old(sampling_rate_max_old, sampling_rate_max);
+
+/*** delete after deprecation time ***/
+
+static ssize_t store_sampling_down_factor(struct kobject *a,
+                                          struct attribute *b,
+                                          const char *buf, size_t count)
 {
         unsigned int input;
         int ret;
@@ -214,8 +248,8 @@ static ssize_t store_sampling_down_factor(struct cpufreq_policy *unused,
         return count;
 }
 
-static ssize_t store_sampling_rate(struct cpufreq_policy *unused,
-                const char *buf, size_t count)
+static ssize_t store_sampling_rate(struct kobject *a, struct attribute *b,
+                                   const char *buf, size_t count)
 {
         unsigned int input;
         int ret;
@@ -231,8 +265,8 @@ static ssize_t store_sampling_rate(struct cpufreq_policy *unused,
         return count;
 }
 
-static ssize_t store_up_threshold(struct cpufreq_policy *unused,
-                const char *buf, size_t count)
+static ssize_t store_up_threshold(struct kobject *a, struct attribute *b,
+                                  const char *buf, size_t count)
 {
         unsigned int input;
         int ret;
@@ -251,8 +285,8 @@ static ssize_t store_up_threshold(struct cpufreq_policy *unused,
         return count;
 }
 
-static ssize_t store_down_threshold(struct cpufreq_policy *unused,
-                const char *buf, size_t count)
+static ssize_t store_down_threshold(struct kobject *a, struct attribute *b,
+                                    const char *buf, size_t count)
 {
         unsigned int input;
         int ret;
@@ -272,8 +306,8 @@ static ssize_t store_down_threshold(struct cpufreq_policy *unused,
         return count;
 }
 
-static ssize_t store_ignore_nice_load(struct cpufreq_policy *policy,
-                const char *buf, size_t count)
+static ssize_t store_ignore_nice_load(struct kobject *a, struct attribute *b,
+                                      const char *buf, size_t count)
 {
         unsigned int input;
         int ret;
@@ -308,8 +342,8 @@ static ssize_t store_ignore_nice_load(struct cpufreq_policy *policy,
         return count;
 }
 
-static ssize_t store_freq_step(struct cpufreq_policy *policy,
-                const char *buf, size_t count)
+static ssize_t store_freq_step(struct kobject *a, struct attribute *b,
+                               const char *buf, size_t count)
 {
         unsigned int input;
         int ret;
@@ -331,7 +365,7 @@ static ssize_t store_freq_step(struct cpufreq_policy *policy,
 }
 
 #define define_one_rw(_name) \
-static struct freq_attr _name = \
+static struct global_attr _name = \
 __ATTR(_name, 0644, show_##_name, store_##_name)
 
 define_one_rw(sampling_rate);
@@ -358,11 +392,59 @@ static struct attribute_group dbs_attr_group = {
         .name = "conservative",
 };
 
+/*** delete after deprecation time ***/
+
+#define write_one_old(file_name)                                        \
+static ssize_t store_##file_name##_old                                  \
+(struct cpufreq_policy *unused, const char *buf, size_t count)          \
+{                                                                       \
+        printk_once(KERN_INFO "CPUFREQ: Per core conservative sysfs "   \
+                "interface is deprecated - " #file_name "\n");  \
+        return store_##file_name(NULL, NULL, buf, count);               \
+}
+write_one_old(sampling_rate);
+write_one_old(sampling_down_factor);
+write_one_old(up_threshold);
+write_one_old(down_threshold);
+write_one_old(ignore_nice_load);
+write_one_old(freq_step);
+
+#define define_one_rw_old(object, _name)        \
+static struct freq_attr object =                \
+__ATTR(_name, 0644, show_##_name##_old, store_##_name##_old)
+
+define_one_rw_old(sampling_rate_old, sampling_rate);
+define_one_rw_old(sampling_down_factor_old, sampling_down_factor);
+define_one_rw_old(up_threshold_old, up_threshold);
+define_one_rw_old(down_threshold_old, down_threshold);
+define_one_rw_old(ignore_nice_load_old, ignore_nice_load);
+define_one_rw_old(freq_step_old, freq_step);
+
+static struct attribute *dbs_attributes_old[] = {
+        &sampling_rate_max_old.attr,
+        &sampling_rate_min_old.attr,
+        &sampling_rate_old.attr,
+        &sampling_down_factor_old.attr,
+        &up_threshold_old.attr,
+        &down_threshold_old.attr,
+        &ignore_nice_load_old.attr,
+        &freq_step_old.attr,
+        NULL
+};
+
+static struct attribute_group dbs_attr_group_old = {
+        .attrs = dbs_attributes_old,
+        .name = "conservative",
+};
+
+/*** delete after deprecation time ***/
+
 /************************** sysfs end ************************/
 
 static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info)
 {
         unsigned int load = 0;
+        unsigned int max_load = 0;
         unsigned int freq_target;
 
         struct cpufreq_policy *policy;
@@ -420,6 +502,9 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info)
                         continue;
 
                 load = 100 * (wall_time - idle_time) / wall_time;
+
+                if (load > max_load)
+                        max_load = load;
         }
 
         /*
@@ -430,7 +515,7 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info)
                 return;
 
         /* Check for frequency increase */
-        if (load > dbs_tuners_ins.up_threshold) {
+        if (max_load > dbs_tuners_ins.up_threshold) {
                 this_dbs_info->down_skip = 0;
 
                 /* if we are already at full speed then break out early */
@@ -457,7 +542,7 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info)
          * can support the current CPU usage without triggering the up
          * policy. To be safe, we focus 10 points under the threshold.
          */
-        if (load < (dbs_tuners_ins.down_threshold - 10)) {
+        if (max_load < (dbs_tuners_ins.down_threshold - 10)) {
                 freq_target = (dbs_tuners_ins.freq_step * policy->max) / 100;
 
                 this_dbs_info->requested_freq -= freq_target;
@@ -530,7 +615,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
 
                 mutex_lock(&dbs_mutex);
 
-                rc = sysfs_create_group(&policy->kobj, &dbs_attr_group);
+                rc = sysfs_create_group(&policy->kobj, &dbs_attr_group_old);
                 if (rc) {
                         mutex_unlock(&dbs_mutex);
                         return rc;
@@ -564,6 +649,13 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
                         if (latency == 0)
                                 latency = 1;
 
+                        rc = sysfs_create_group(cpufreq_global_kobject,
+                                                &dbs_attr_group);
+                        if (rc) {
+                                mutex_unlock(&dbs_mutex);
+                                return rc;
+                        }
+
                         /*
                          * conservative does not implement micro like ondemand
                          * governor, thus we are bound to jiffes/HZ
@@ -591,7 +683,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
                 dbs_timer_exit(this_dbs_info);
 
                 mutex_lock(&dbs_mutex);
-                sysfs_remove_group(&policy->kobj, &dbs_attr_group);
+                sysfs_remove_group(&policy->kobj, &dbs_attr_group_old);
                 dbs_enable--;
                 mutex_destroy(&this_dbs_info->timer_mutex);
 
@@ -605,6 +697,9 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
                                         CPUFREQ_TRANSITION_NOTIFIER);
 
                 mutex_unlock(&dbs_mutex);
+                if (!dbs_enable)
+                        sysfs_remove_group(cpufreq_global_kobject,
+                                           &dbs_attr_group);
 
                 break;
 
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index 4b34ade2332b..bd444dc93cf2 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -554,6 +554,9 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info)
                                 (dbs_tuners_ins.up_threshold -
                                  dbs_tuners_ins.down_differential);
 
+                if (freq_next < policy->min)
+                        freq_next = policy->min;
+
                 if (!dbs_tuners_ins.powersave_bias) {
                         __cpufreq_driver_target(policy, freq_next,
                                         CPUFREQ_RELATION_L);
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index 5a62d678dd19..00d73fc8e4e2 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -10,6 +10,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/slab.h>
 #include <linux/sysdev.h>
 #include <linux/cpu.h>
 #include <linux/sysfs.h>
diff --git a/drivers/cpufreq/freq_table.c b/drivers/cpufreq/freq_table.c
index a9bd3a05a684..05432216e224 100644
--- a/drivers/cpufreq/freq_table.c
+++ b/drivers/cpufreq/freq_table.c
@@ -174,7 +174,7 @@ int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
 }
 EXPORT_SYMBOL_GPL(cpufreq_frequency_table_target);
 
-static DEFINE_PER_CPU(struct cpufreq_frequency_table *, show_table);
+static DEFINE_PER_CPU(struct cpufreq_frequency_table *, cpufreq_show_table);
 /**
  * show_available_freqs - show available frequencies for the specified CPU
  */
@@ -185,10 +185,10 @@ static ssize_t show_available_freqs(struct cpufreq_policy *policy, char *buf)
         ssize_t count = 0;
         struct cpufreq_frequency_table *table;
 
-        if (!per_cpu(show_table, cpu))
+        if (!per_cpu(cpufreq_show_table, cpu))
                 return -ENODEV;
 
-        table = per_cpu(show_table, cpu);
+        table = per_cpu(cpufreq_show_table, cpu);
 
         for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++) {
                 if (table[i].frequency == CPUFREQ_ENTRY_INVALID)
@@ -217,20 +217,20 @@ void cpufreq_frequency_table_get_attr(struct cpufreq_frequency_table *table,
                                       unsigned int cpu)
 {
         dprintk("setting show_table for cpu %u to %p\n", cpu, table);
-        per_cpu(show_table, cpu) = table;
+        per_cpu(cpufreq_show_table, cpu) = table;
 }
 EXPORT_SYMBOL_GPL(cpufreq_frequency_table_get_attr);
 
 void cpufreq_frequency_table_put_attr(unsigned int cpu)
 {
         dprintk("clearing show_table for cpu %u\n", cpu);
-        per_cpu(show_table, cpu) = NULL;
+        per_cpu(cpufreq_show_table, cpu) = NULL;
 }
 EXPORT_SYMBOL_GPL(cpufreq_frequency_table_put_attr);
 
 struct cpufreq_frequency_table *cpufreq_frequency_get_table(unsigned int cpu)
 {
-        return per_cpu(show_table, cpu);
+        return per_cpu(cpufreq_show_table, cpu);
 }
 EXPORT_SYMBOL_GPL(cpufreq_frequency_get_table);