Merge commit 'upstream/master'

[pandora-kernel.git] / drivers / base / cpu.c

diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 6fe4174..64f5d54 100644 (file)
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -18,18 +18,19 @@ struct sysdev_class cpu_sysdev_class = {
 };
 EXPORT_SYMBOL(cpu_sysdev_class);
 
-static struct sys_device *cpu_sys_devices[NR_CPUS];
+static DEFINE_PER_CPU(struct sys_device *, cpu_sys_devices);
 
 #ifdef CONFIG_HOTPLUG_CPU
-static ssize_t show_online(struct sys_device *dev, char *buf)
+static ssize_t show_online(struct sys_device *dev, struct sysdev_attribute *attr,
+                          char *buf)
 {
        struct cpu *cpu = container_of(dev, struct cpu, sysdev);
 
        return sprintf(buf, "%u\n", !!cpu_online(cpu->sysdev.id));
 }
 
-static ssize_t __ref store_online(struct sys_device *dev, const char *buf,
-                           size_t count)
+static ssize_t __ref store_online(struct sys_device *dev, struct sysdev_attribute *attr,
+                                const char *buf, size_t count)
 {
        struct cpu *cpu = container_of(dev, struct cpu, sysdev);
        ssize_t ret;
@@ -68,7 +69,7 @@ void unregister_cpu(struct cpu *cpu)
        sysdev_remove_file(&cpu->sysdev, &attr_online);
 
        sysdev_unregister(&cpu->sysdev);
-       cpu_sys_devices[logical_cpu] = NULL;
+       per_cpu(cpu_sys_devices, logical_cpu) = NULL;
        return;
 }
 #else /* ... !CONFIG_HOTPLUG_CPU */
@@ -80,7 +81,8 @@ static inline void register_cpu_control(struct cpu *cpu)
 #ifdef CONFIG_KEXEC
 #include <linux/kexec.h>
 
-static ssize_t show_crash_notes(struct sys_device *dev, char *buf)
+static ssize_t show_crash_notes(struct sys_device *dev, struct sysdev_attribute *attr,
+                               char *buf)
 {
        struct cpu *cpu = container_of(dev, struct cpu, sysdev);
        ssize_t rc;
@@ -119,14 +121,14 @@ static ssize_t print_cpus_##type(struct sysdev_class *class, char *buf)   \
 {                                                                      \
        return print_cpus_map(buf, &cpu_##type##_map);                  \
 }                                                                      \
-struct sysdev_class_attribute attr_##type##_map =                      \
+static struct sysdev_class_attribute attr_##type##_map =               \
        _SYSDEV_CLASS_ATTR(type, 0444, print_cpus_##type, NULL)
 
 print_cpus_func(online);
 print_cpus_func(possible);
 print_cpus_func(present);
 
-struct sysdev_class_attribute *cpu_state_attr[] = {
+static struct sysdev_class_attribute *cpu_state_attr[] = {
        &attr_online_map,
        &attr_possible_map,
        &attr_present_map,
@@ -167,7 +169,7 @@ int __cpuinit register_cpu(struct cpu *cpu, int num)
        if (!error && cpu->hotpluggable)
                register_cpu_control(cpu);
        if (!error)
-               cpu_sys_devices[num] = &cpu->sysdev;
+               per_cpu(cpu_sys_devices, num) = &cpu->sysdev;
        if (!error)
                register_cpu_under_node(num, cpu_to_node(num));
 
@@ -180,8 +182,8 @@ int __cpuinit register_cpu(struct cpu *cpu, int num)
 
 struct sys_device *get_cpu_sysdev(unsigned cpu)
 {
-       if (cpu < NR_CPUS)
-               return cpu_sys_devices[cpu];
+       if (cpu < nr_cpu_ids && cpu_possible(cpu))
+               return per_cpu(cpu_sys_devices, cpu);
        else
                return NULL;
 }