16 files changed, 46 insertions, 66 deletions

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index fef7bab12244..56c5ba874623 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -107,7 +107,6 @@ config ACPI_BUTTON
 config ACPI_VIDEO
         tristate "Video"
         depends on X86
-        default y
         help
           This driver implement the ACPI Extensions For Display Adapters
           for integrated graphics devices on motherboard, as specified in
@@ -135,8 +134,7 @@ config ACPI_FAN
 
 config ACPI_DOCK
         tristate "Dock"
-        depends on !ACPI_IBM_DOCK
-        default y
+        depends on EXPERIMENTAL
         help
           This driver adds support for ACPI controlled docking stations
 
@@ -214,6 +212,7 @@ config ACPI_IBM
 config ACPI_IBM_DOCK
         bool "Legacy Docking Station Support"
         depends on ACPI_IBM
+        depends on ACPI_DOCK=n
         default n
         ---help---
           Allows the ibm_acpi driver to handle docking station events.
@@ -357,7 +356,6 @@ config ACPI_SBS
         tristate "Smart Battery System (EXPERIMENTAL)"
         depends on X86 && I2C
         depends on EXPERIMENTAL
-        default y
         help
           This driver adds support for the Smart Battery System.
           Depends on I2C (Device Drivers ---> I2C support)
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 24ccf81d135f..96309b9660da 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -72,7 +72,7 @@ struct acpi_ac {
         unsigned long state;
 };
 
-static struct file_operations acpi_ac_fops = {
+static const struct file_operations acpi_ac_fops = {
         .open = acpi_ac_open_fs,
         .read = seq_read,
         .llseek = seq_lseek,
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 24bf4dca88cc..6e5221707d97 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -557,7 +557,7 @@ static int acpi_battery_alarm_open_fs(struct inode *inode, struct file *file)
         return single_open(file, acpi_battery_read_alarm, PDE(inode)->data);
 }
 
-static struct file_operations acpi_battery_info_ops = {
+static const struct file_operations acpi_battery_info_ops = {
         .open = acpi_battery_info_open_fs,
         .read = seq_read,
         .llseek = seq_lseek,
@@ -565,7 +565,7 @@ static struct file_operations acpi_battery_info_ops = {
         .owner = THIS_MODULE,
 };
 
-static struct file_operations acpi_battery_state_ops = {
+static const struct file_operations acpi_battery_state_ops = {
         .open = acpi_battery_state_open_fs,
         .read = seq_read,
         .llseek = seq_lseek,
@@ -573,7 +573,7 @@ static struct file_operations acpi_battery_state_ops = {
         .owner = THIS_MODULE,
 };
 
-static struct file_operations acpi_battery_alarm_ops = {
+static const struct file_operations acpi_battery_alarm_ops = {
         .open = acpi_battery_alarm_open_fs,
         .read = seq_read,
         .write = acpi_battery_write_alarm,
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index ea5a0496a4fd..b2977695e120 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -192,8 +192,8 @@ int acpi_bus_set_power(acpi_handle handle, int state)
         /* Make sure this is a valid target state */
 
         if (!device->flags.power_manageable) {
-                printk(KERN_DEBUG "Device `[%s]' is not power manageable",
-                                device->kobj.name);
+                ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device `[%s]' is not power manageable",
+                                device->kobj.name));
                 return -ENODEV;
         }
         /*
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index fd1ba05eab68..5ef885e82c78 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -87,14 +87,14 @@ struct acpi_button {
         unsigned long pushed;
 };
 
-static struct file_operations acpi_button_info_fops = {
+static const struct file_operations acpi_button_info_fops = {
         .open = acpi_button_info_open_fs,
         .read = seq_read,
         .llseek = seq_lseek,
         .release = single_release,
 };
 
-static struct file_operations acpi_button_state_fops = {
+static const struct file_operations acpi_button_state_fops = {
         .open = acpi_button_state_open_fs,
         .read = seq_read,
         .llseek = seq_lseek,
diff --git a/drivers/acpi/cm_sbs.c b/drivers/acpi/cm_sbs.c
index 574a75a166c5..a01ce6700bfe 100644
--- a/drivers/acpi/cm_sbs.c
+++ b/drivers/acpi/cm_sbs.c
@@ -39,50 +39,43 @@ ACPI_MODULE_NAME("cm_sbs")
 static struct proc_dir_entry *acpi_ac_dir;
 static struct proc_dir_entry *acpi_battery_dir;
 
-static struct semaphore cm_sbs_sem;
+static DEFINE_MUTEX(cm_sbs_mutex);
 
-static int lock_ac_dir_cnt = 0;
-static int lock_battery_dir_cnt = 0;
+static int lock_ac_dir_cnt;
+static int lock_battery_dir_cnt;
 
 struct proc_dir_entry *acpi_lock_ac_dir(void)
 {
-
-        down(&cm_sbs_sem);
-        if (!acpi_ac_dir) {
+        mutex_lock(&cm_sbs_mutex);
+        if (!acpi_ac_dir)
                 acpi_ac_dir = proc_mkdir(ACPI_AC_CLASS, acpi_root_dir);
-        }
         if (acpi_ac_dir) {
                 lock_ac_dir_cnt++;
         } else {
                 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
                                   "Cannot create %s\n", ACPI_AC_CLASS));
         }
-        up(&cm_sbs_sem);
+        mutex_unlock(&cm_sbs_mutex);
         return acpi_ac_dir;
 }
-
 EXPORT_SYMBOL(acpi_lock_ac_dir);
 
 void acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir_param)
 {
-
-        down(&cm_sbs_sem);
-        if (acpi_ac_dir_param) {
+        mutex_lock(&cm_sbs_mutex);
+        if (acpi_ac_dir_param)
                 lock_ac_dir_cnt--;
-        }
         if (lock_ac_dir_cnt == 0 && acpi_ac_dir_param && acpi_ac_dir) {
                 remove_proc_entry(ACPI_AC_CLASS, acpi_root_dir);
                 acpi_ac_dir = 0;
         }
-        up(&cm_sbs_sem);
+        mutex_unlock(&cm_sbs_mutex);
 }
-
 EXPORT_SYMBOL(acpi_unlock_ac_dir);
 
 struct proc_dir_entry *acpi_lock_battery_dir(void)
 {
-
-        down(&cm_sbs_sem);
+        mutex_lock(&cm_sbs_mutex);
         if (!acpi_battery_dir) {
                 acpi_battery_dir =
                     proc_mkdir(ACPI_BATTERY_CLASS, acpi_root_dir);
@@ -93,39 +86,28 @@ struct proc_dir_entry *acpi_lock_battery_dir(void)
                 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
                                   "Cannot create %s\n", ACPI_BATTERY_CLASS));
         }
-        up(&cm_sbs_sem);
+        mutex_unlock(&cm_sbs_mutex);
         return acpi_battery_dir;
 }
-
 EXPORT_SYMBOL(acpi_lock_battery_dir);
 
 void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir_param)
 {
-
-        down(&cm_sbs_sem);
-        if (acpi_battery_dir_param) {
+        mutex_lock(&cm_sbs_mutex);
+        if (acpi_battery_dir_param)
                 lock_battery_dir_cnt--;
-        }
         if (lock_battery_dir_cnt == 0 && acpi_battery_dir_param
             && acpi_battery_dir) {
                 remove_proc_entry(ACPI_BATTERY_CLASS, acpi_root_dir);
                 acpi_battery_dir = 0;
         }
-        up(&cm_sbs_sem);
+        mutex_unlock(&cm_sbs_mutex);
         return;
 }
-
 EXPORT_SYMBOL(acpi_unlock_battery_dir);
 
 static int __init acpi_cm_sbs_init(void)
 {
-
-        if (acpi_disabled)
-                return 0;
-
-        init_MUTEX(&cm_sbs_sem);
-
         return 0;
 }
-
 subsys_initcall(acpi_cm_sbs_init);
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 8c5d7df7d343..e5d796362854 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -929,7 +929,7 @@ static int acpi_ec_info_open_fs(struct inode *inode, struct file *file)
         return single_open(file, acpi_ec_read_info, PDE(inode)->data);
 }
 
-static struct file_operations acpi_ec_info_ops = {
+static const struct file_operations acpi_ec_info_ops = {
         .open = acpi_ec_info_open_fs,
         .read = seq_read,
         .llseek = seq_lseek,
diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c
index a901b23e95e7..959a893c8d1f 100644
--- a/drivers/acpi/event.c
+++ b/drivers/acpi/event.c
@@ -99,7 +99,7 @@ static unsigned int acpi_system_poll_event(struct file *file, poll_table * wait)
         return 0;
 }
 
-static struct file_operations acpi_system_event_ops = {
+static const struct file_operations acpi_system_event_ops = {
         .open = acpi_system_open_event,
         .read = acpi_system_read_event,
         .release = acpi_system_close_event,
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index daed2460924d..045c89477e59 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -120,7 +120,7 @@ acpi_fan_write_state(struct file *file, const char __user * buffer,
         return count;
 }
 
-static struct file_operations acpi_fan_state_ops = {
+static const struct file_operations acpi_fan_state_ops = {
         .open = acpi_fan_state_open_fs,
         .read = seq_read,
         .write = acpi_fan_write_state,
diff --git a/drivers/acpi/hotkey.c b/drivers/acpi/hotkey.c
index fd81a0f5222f..32c9d88fd196 100644
--- a/drivers/acpi/hotkey.c
+++ b/drivers/acpi/hotkey.c
@@ -184,7 +184,7 @@ static union acpi_hotkey *get_hotkey_by_event(struct
                                               *hotkey_list, int event);
 
 /* event based config */
-static struct file_operations hotkey_config_fops = {
+static const struct file_operations hotkey_config_fops = {
         .open = hotkey_open_config,
         .read = seq_read,
         .write = hotkey_write_config,
@@ -193,7 +193,7 @@ static struct file_operations hotkey_config_fops = {
 };
 
 /* polling based config */
-static struct file_operations hotkey_poll_config_fops = {
+static const struct file_operations hotkey_poll_config_fops = {
         .open = hotkey_poll_open_config,
         .read = seq_read,
         .write = hotkey_write_config,
@@ -202,7 +202,7 @@ static struct file_operations hotkey_poll_config_fops = {
 };
 
 /* hotkey driver info */
-static struct file_operations hotkey_info_fops = {
+static const struct file_operations hotkey_info_fops = {
         .open = hotkey_info_open_fs,
         .read = seq_read,
         .llseek = seq_lseek,
@@ -210,7 +210,7 @@ static struct file_operations hotkey_info_fops = {
 };
 
 /* action */
-static struct file_operations hotkey_action_fops = {
+static const struct file_operations hotkey_action_fops = {
         .open = hotkey_action_open_fs,
         .read = seq_read,
         .write = hotkey_execute_aml_method,
@@ -219,7 +219,7 @@ static struct file_operations hotkey_action_fops = {
 };
 
 /* polling results */
-static struct file_operations hotkey_polling_fops = {
+static const struct file_operations hotkey_polling_fops = {
         .open = hotkey_polling_open_fs,
         .read = seq_read,
         .llseek = seq_lseek,
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 5d3447f4582c..fec225d1b6b7 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -80,7 +80,7 @@ struct acpi_power_resource {
 
 static struct list_head acpi_power_resource_list;
 
-static struct file_operations acpi_power_fops = {
+static const struct file_operations acpi_power_fops = {
         .open = acpi_power_open_fs,
         .read = seq_read,
         .llseek = seq_lseek,
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 52674323b14d..b13d64415b7a 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -102,7 +102,7 @@ static struct acpi_driver acpi_processor_driver = {
 #define INSTALL_NOTIFY_HANDLER          1
 #define UNINSTALL_NOTIFY_HANDLER        2
 
-static struct file_operations acpi_processor_info_fops = {
+static const struct file_operations acpi_processor_info_fops = {
         .open = acpi_processor_info_open_fs,
         .read = seq_read,
         .llseek = seq_lseek,
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 8e9c26aae8fe..71066066d626 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -1070,7 +1070,7 @@ static int acpi_processor_power_open_fs(struct inode *inode, struct file *file)
                            PDE(inode)->data);
 }
 
-static struct file_operations acpi_processor_power_fops = {
+static const struct file_operations acpi_processor_power_fops = {
         .open = acpi_processor_power_open_fs,
         .read = seq_read,
         .llseek = seq_lseek,
diff --git a/drivers/acpi/sleep/proc.c b/drivers/acpi/sleep/proc.c
index 4696a85a98b9..34962578039d 100644
--- a/drivers/acpi/sleep/proc.c
+++ b/drivers/acpi/sleep/proc.c
@@ -434,7 +434,7 @@ acpi_system_wakeup_device_open_fs(struct inode *inode, struct file *file)
                            PDE(inode)->data);
 }
 
-static struct file_operations acpi_system_wakeup_device_fops = {
+static const struct file_operations acpi_system_wakeup_device_fops = {
         .open = acpi_system_wakeup_device_open_fs,
         .read = seq_read,
         .write = acpi_system_write_wakeup_device,
@@ -443,7 +443,7 @@ static struct file_operations acpi_system_wakeup_device_fops = {
 };
 
 #ifdef  CONFIG_ACPI_SLEEP_PROC_SLEEP
-static struct file_operations acpi_system_sleep_fops = {
+static const struct file_operations acpi_system_sleep_fops = {
         .open = acpi_system_sleep_open_fs,
         .read = seq_read,
         .write = acpi_system_write_sleep,
@@ -452,7 +452,7 @@ static struct file_operations acpi_system_sleep_fops = {
 };
 #endif                          /* CONFIG_ACPI_SLEEP_PROC_SLEEP */
 
-static struct file_operations acpi_system_alarm_fops = {
+static const struct file_operations acpi_system_alarm_fops = {
         .open = acpi_system_alarm_open_fs,
         .read = seq_read,
         .write = acpi_system_write_alarm,
diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c
index c3bb7faad75e..d86dcb3c2366 100644
--- a/drivers/acpi/system.c
+++ b/drivers/acpi/system.c
@@ -57,7 +57,7 @@ static int acpi_system_info_open_fs(struct inode *inode, struct file *file)
         return single_open(file, acpi_system_read_info, PDE(inode)->data);
 }
 
-static struct file_operations acpi_system_info_ops = {
+static const struct file_operations acpi_system_info_ops = {
         .open = acpi_system_info_open_fs,
         .read = seq_read,
         .llseek = seq_lseek,
@@ -67,7 +67,7 @@ static struct file_operations acpi_system_info_ops = {
 static ssize_t acpi_system_read_dsdt(struct file *, char __user *, size_t,
                                      loff_t *);
 
-static struct file_operations acpi_system_dsdt_ops = {
+static const struct file_operations acpi_system_dsdt_ops = {
         .read = acpi_system_read_dsdt,
 };
 
@@ -94,7 +94,7 @@ acpi_system_read_dsdt(struct file *file,
 static ssize_t acpi_system_read_fadt(struct file *, char __user *, size_t,
                                      loff_t *);
 
-static struct file_operations acpi_system_fadt_ops = {
+static const struct file_operations acpi_system_fadt_ops = {
         .read = acpi_system_read_fadt,
 };
 
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 503c0b99db12..480a31796886 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -176,21 +176,21 @@ struct acpi_thermal {
         struct timer_list timer;
 };
 
-static struct file_operations acpi_thermal_state_fops = {
+static const struct file_operations acpi_thermal_state_fops = {
         .open = acpi_thermal_state_open_fs,
         .read = seq_read,
         .llseek = seq_lseek,
         .release = single_release,
 };
 
-static struct file_operations acpi_thermal_temp_fops = {
+static const struct file_operations acpi_thermal_temp_fops = {
         .open = acpi_thermal_temp_open_fs,
         .read = seq_read,
         .llseek = seq_lseek,
         .release = single_release,
 };
 
-static struct file_operations acpi_thermal_trip_fops = {
+static const struct file_operations acpi_thermal_trip_fops = {
         .open = acpi_thermal_trip_open_fs,
         .read = seq_read,
         .write = acpi_thermal_write_trip_points,
@@ -198,7 +198,7 @@ static struct file_operations acpi_thermal_trip_fops = {
         .release = single_release,
 };
 
-static struct file_operations acpi_thermal_cooling_fops = {
+static const struct file_operations acpi_thermal_cooling_fops = {
         .open = acpi_thermal_cooling_open_fs,
         .read = seq_read,
         .write = acpi_thermal_write_cooling_mode,
@@ -206,7 +206,7 @@ static struct file_operations acpi_thermal_cooling_fops = {
         .release = single_release,
 };
 
-static struct file_operations acpi_thermal_polling_fops = {
+static const struct file_operations acpi_thermal_polling_fops = {
         .open = acpi_thermal_polling_open_fs,
         .read = seq_read,
         .write = acpi_thermal_write_polling,