static struct battery_file {
        struct file_operations ops;
        mode_t mode;
-       char *name;
+       const char *name;
 } acpi_battery_file[] = {
        FILE_DESCRIPTION_RO(info),
        FILE_DESCRIPTION_RO(state),
 
        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,
 
        return count;
 }
 
-struct file_operations acpi_processor_limit_fops = {
+const struct file_operations acpi_processor_limit_fops = {
        .owner = THIS_MODULE,
        .open = acpi_processor_limit_open_fs,
        .read = seq_read,
 
        return count;
 }
 
-struct file_operations acpi_processor_throttling_fops = {
+const struct file_operations acpi_processor_throttling_fops = {
        .owner = THIS_MODULE,
        .open = acpi_processor_throttling_open_fs,
        .read = seq_read,
 
 acpi_sbs_add_fs(struct proc_dir_entry **dir,
                struct proc_dir_entry *parent_dir,
                char *dir_name,
-               struct file_operations *info_fops,
-               struct file_operations *state_fops,
-               struct file_operations *alarm_fops, void *data)
+               const struct file_operations *info_fops,
+               const struct file_operations *state_fops,
+               const struct file_operations *alarm_fops, void *data)
 {
        if (!*dir) {
                *dir = proc_mkdir(dir_name, parent_dir);
        return single_open(file, acpi_battery_read_alarm, PDE(inode)->data);
 }
 
-static struct file_operations acpi_battery_info_fops = {
+static const struct file_operations acpi_battery_info_fops = {
        .open = acpi_battery_info_open_fs,
        .read = seq_read,
        .llseek = seq_lseek,
        .owner = THIS_MODULE,
 };
 
-static struct file_operations acpi_battery_state_fops = {
+static const struct file_operations acpi_battery_state_fops = {
        .open = acpi_battery_state_open_fs,
        .read = seq_read,
        .llseek = seq_lseek,
        .owner = THIS_MODULE,
 };
 
-static struct file_operations acpi_battery_alarm_fops = {
+static const struct file_operations acpi_battery_alarm_fops = {
        .open = acpi_battery_alarm_open_fs,
        .read = seq_read,
        .write = acpi_battery_write_alarm,
        return single_open(file, acpi_ac_read_state, PDE(inode)->data);
 }
 
-static struct file_operations acpi_ac_state_fops = {
+static const struct file_operations acpi_ac_state_fops = {
        .open = acpi_ac_state_open_fs,
        .read = seq_read,
        .llseek = seq_lseek,
 
 
 /* bus */
 static int acpi_video_bus_info_open_fs(struct inode *inode, struct file *file);
-static struct file_operations acpi_video_bus_info_fops = {
+static const struct file_operations acpi_video_bus_info_fops = {
        .owner = THIS_MODULE,
        .open = acpi_video_bus_info_open_fs,
        .read = seq_read,
 };
 
 static int acpi_video_bus_ROM_open_fs(struct inode *inode, struct file *file);
-static struct file_operations acpi_video_bus_ROM_fops = {
+static const struct file_operations acpi_video_bus_ROM_fops = {
        .owner = THIS_MODULE,
        .open = acpi_video_bus_ROM_open_fs,
        .read = seq_read,
 
 static int acpi_video_bus_POST_info_open_fs(struct inode *inode,
                                            struct file *file);
-static struct file_operations acpi_video_bus_POST_info_fops = {
+static const struct file_operations acpi_video_bus_POST_info_fops = {
        .owner = THIS_MODULE,
        .open = acpi_video_bus_POST_info_open_fs,
        .read = seq_read,
 /* device */
 static int acpi_video_device_info_open_fs(struct inode *inode,
                                          struct file *file);
-static struct file_operations acpi_video_device_info_fops = {
+static const struct file_operations acpi_video_device_info_fops = {
        .owner = THIS_MODULE,
        .open = acpi_video_device_info_open_fs,
        .read = seq_read,
 
 static int acpi_video_device_EDID_open_fs(struct inode *inode,
                                          struct file *file);
-static struct file_operations acpi_video_device_EDID_fops = {
+static const struct file_operations acpi_video_device_EDID_fops = {
        .owner = THIS_MODULE,
        .open = acpi_video_device_EDID_open_fs,
        .read = seq_read,
 
 int acpi_processor_tstate_has_changed(struct acpi_processor *pr);
 int acpi_processor_get_throttling_info(struct acpi_processor *pr);
 extern int acpi_processor_set_throttling(struct acpi_processor *pr, int state);
-extern struct file_operations acpi_processor_throttling_fops;
+extern const struct file_operations acpi_processor_throttling_fops;
 extern void acpi_processor_throttling_init(void);
 /* in processor_idle.c */
 int acpi_processor_power_init(struct acpi_processor *pr,
 
 /* in processor_thermal.c */
 int acpi_processor_get_limit_info(struct acpi_processor *pr);
-extern struct file_operations acpi_processor_limit_fops;
+extern const struct file_operations acpi_processor_limit_fops;
 extern struct thermal_cooling_device_ops processor_cooling_ops;
 #ifdef CONFIG_CPU_FREQ
 void acpi_thermal_cpufreq_init(void);