ACPI / AC: Remove AC's proc directory.

AC's proc directory is not used and so remove it. Prepare for removing
/proc/acpi directory.

Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 3 insertions, 126 deletions

diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 324b5a096eff..b9f0d5f4bba5 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -30,10 +30,6 @@
 #include <linux/types.h>
 #include <linux/dmi.h>
 #include <linux/delay.h>
-#ifdef CONFIG_ACPI_PROCFS_POWER
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#endif
 #include <linux/platform_device.h>
 #include <linux/power_supply.h>
 #include <acpi/acpi_bus.h>
@@ -56,12 +52,6 @@ MODULE_AUTHOR("Paul Diefenbaugh");
 MODULE_DESCRIPTION("ACPI AC Adapter Driver");
 MODULE_LICENSE("GPL");
 
-#ifdef CONFIG_ACPI_PROCFS_POWER
-extern struct proc_dir_entry *acpi_lock_ac_dir(void);
-extern void *acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir);
-static int acpi_ac_open_fs(struct inode *inode, struct file *file);
-#endif
-
 static int ac_sleep_before_get_state_ms;
 
 struct acpi_ac {
@@ -73,16 +63,6 @@ struct acpi_ac {
 
 #define to_acpi_ac(x) container_of(x, struct acpi_ac, charger)
 
-#ifdef CONFIG_ACPI_PROCFS_POWER
-static const struct file_operations acpi_ac_fops = {
-        .owner = THIS_MODULE,
-        .open = acpi_ac_open_fs,
-        .read = seq_read,
-        .llseek = seq_lseek,
-        .release = single_release,
-};
-#endif
-
 /* --------------------------------------------------------------------------
                                AC Adapter Management
    -------------------------------------------------------------------------- */
@@ -132,83 +112,6 @@ static enum power_supply_property ac_props[] = {
         POWER_SUPPLY_PROP_ONLINE,
 };
 
-#ifdef CONFIG_ACPI_PROCFS_POWER
-/* --------------------------------------------------------------------------
-                              FS Interface (/proc)
-   -------------------------------------------------------------------------- */
-
-static struct proc_dir_entry *acpi_ac_dir;
-
-static int acpi_ac_seq_show(struct seq_file *seq, void *offset)
-{
-        struct acpi_ac *ac = seq->private;
-
-
-        if (!ac)
-                return 0;
-
-        if (acpi_ac_get_state(ac)) {
-                seq_puts(seq, "ERROR: Unable to read AC Adapter state\n");
-                return 0;
-        }
-
-        seq_puts(seq, "state:                   ");
-        switch (ac->state) {
-        case ACPI_AC_STATUS_OFFLINE:
-                seq_puts(seq, "off-line\n");
-                break;
-        case ACPI_AC_STATUS_ONLINE:
-                seq_puts(seq, "on-line\n");
-                break;
-        default:
-                seq_puts(seq, "unknown\n");
-                break;
-        }
-
-        return 0;
-}
-
-static int acpi_ac_open_fs(struct inode *inode, struct file *file)
-{
-        return single_open(file, acpi_ac_seq_show, PDE_DATA(inode));
-}
-
-static int acpi_ac_add_fs(struct acpi_ac *ac)
-{
-        struct proc_dir_entry *entry = NULL;
-
-        printk(KERN_WARNING PREFIX "Deprecated procfs I/F for AC is loaded,"
-                        " please retry with CONFIG_ACPI_PROCFS_POWER cleared\n");
-        if (!acpi_device_dir(ac->adev)) {
-                acpi_device_dir(ac->adev) =
-                        proc_mkdir(acpi_device_bid(ac->adev), acpi_ac_dir);
-                if (!acpi_device_dir(ac->adev))
-                        return -ENODEV;
-        }
-
-        /* 'state' [R] */
-        entry = proc_create_data(ACPI_AC_FILE_STATE,
-                                 S_IRUGO, acpi_device_dir(ac->adev),
-                                 &acpi_ac_fops, ac);
-        if (!entry)
-                return -ENODEV;
-        return 0;
-}
-
-static int acpi_ac_remove_fs(struct acpi_ac *ac)
-{
-
-        if (acpi_device_dir(ac->adev)) {
-                remove_proc_entry(ACPI_AC_FILE_STATE,
-                                  acpi_device_dir(ac->adev));
-                remove_proc_entry(acpi_device_bid(ac->adev), acpi_ac_dir);
-                acpi_device_dir(ac->adev) = NULL;
-        }
-
-        return 0;
-}
-#endif
-
 /* --------------------------------------------------------------------------
                                    Driver Model
    -------------------------------------------------------------------------- */
@@ -293,11 +196,6 @@ static int acpi_ac_probe(struct platform_device *pdev)
         if (result)
                 goto end;
 
-#ifdef CONFIG_ACPI_PROCFS_POWER
-        result = acpi_ac_add_fs(ac);
-        if (result)
-                goto end;
-#endif
         ac->charger.name = acpi_device_bid(adev);
         ac->charger.type = POWER_SUPPLY_TYPE_MAINS;
         ac->charger.properties = ac_props;
@@ -317,13 +215,9 @@ static int acpi_ac_probe(struct platform_device *pdev)
                acpi_device_name(adev), acpi_device_bid(adev),
                ac->state ? "on-line" : "off-line");
 
-      end:
-        if (result) {
-#ifdef CONFIG_ACPI_PROCFS_POWER
-                acpi_ac_remove_fs(ac);
-#endif
+end:
+        if (result)
                 kfree(ac);
-        }
 
         dmi_check_system(ac_dmi_table);
         return result;
@@ -366,10 +260,6 @@ static int acpi_ac_remove(struct platform_device *pdev)
         if (ac->charger.dev)
                 power_supply_unregister(&ac->charger);
 
-#ifdef CONFIG_ACPI_PROCFS_POWER
-        acpi_ac_remove_fs(ac);
-#endif
-
         kfree(ac);
 
         return 0;
@@ -399,19 +289,9 @@ static int __init acpi_ac_init(void)
         if (acpi_disabled)
                 return -ENODEV;
 
-#ifdef CONFIG_ACPI_PROCFS_POWER
-        acpi_ac_dir = acpi_lock_ac_dir();
-        if (!acpi_ac_dir)
-                return -ENODEV;
-#endif
-
         result = platform_driver_register(&acpi_ac_driver);
-        if (result < 0) {
-#ifdef CONFIG_ACPI_PROCFS_POWER
-                acpi_unlock_ac_dir(acpi_ac_dir);
-#endif
+        if (result < 0)
                 return -ENODEV;
-        }
 
         return 0;
 }
@@ -419,9 +299,6 @@ static int __init acpi_ac_init(void)
 static void __exit acpi_ac_exit(void)
 {
         platform_driver_unregister(&acpi_ac_driver);
-#ifdef CONFIG_ACPI_PROCFS_POWER
-        acpi_unlock_ac_dir(acpi_ac_dir);
-#endif
 }
 module_init(acpi_ac_init);
 module_exit(acpi_ac_exit);