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ACPI power_resource: remove unused procfs I/F

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Remove unused ACPI power procfs I/F.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Zhang Rui 2010-07-15 10:46:38 +08:00 committed by Len Brown
parent 47f5c892b0
commit 06af7eb043
1 changed files with 1 additions and 127 deletions
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128
drivers/acpi/power.c
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@ -40,8 +40,6 @@
#include <linux/init.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
#include "sleep.h"
@ -64,7 +62,6 @@ module_param_named(power_nocheck, acpi_power_nocheck, bool, 000);
static int acpi_power_add(struct acpi_device *device);
static int acpi_power_remove(struct acpi_device *device, int type);
static int acpi_power_resume(struct acpi_device *device);
static int acpi_power_open_fs(struct inode *inode, struct file *file);
static const struct acpi_device_id power_device_ids[] = {
{ACPI_POWER_HID, 0},
@ -99,14 +96,6 @@ struct acpi_power_resource {
static struct list_head acpi_power_resource_list;
static const struct file_operations acpi_power_fops = {
.owner = THIS_MODULE,
.open = acpi_power_open_fs,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
/* --------------------------------------------------------------------------
Power Resource Management
-------------------------------------------------------------------------- */
@ -541,102 +530,6 @@ int acpi_power_transition(struct acpi_device *device, int state)
return result;
}
/* --------------------------------------------------------------------------
FS Interface (/proc)
-------------------------------------------------------------------------- */
static struct proc_dir_entry *acpi_power_dir;
static int acpi_power_seq_show(struct seq_file *seq, void *offset)
{
int count = 0;
int result = 0, state;
struct acpi_power_resource *resource = NULL;
struct list_head *node, *next;
struct acpi_power_reference *ref;
resource = seq->private;
if (!resource)
goto end;
result = acpi_power_get_state(resource->device->handle, &state);
if (result)
goto end;
seq_puts(seq, "state: ");
switch (state) {
case ACPI_POWER_RESOURCE_STATE_ON:
seq_puts(seq, "on\n");
break;
case ACPI_POWER_RESOURCE_STATE_OFF:
seq_puts(seq, "off\n");
break;
default:
seq_puts(seq, "unknown\n");
break;
}
mutex_lock(&resource->resource_lock);
list_for_each_safe(node, next, &resource->reference) {
ref = container_of(node, struct acpi_power_reference, node);
count++;
}
mutex_unlock(&resource->resource_lock);
seq_printf(seq, "system level: S%d\n"
"order: %d\n"
"reference count: %d\n",
resource->system_level,
resource->order, count);
end:
return 0;
}
static int acpi_power_open_fs(struct inode *inode, struct file *file)
{
return single_open(file, acpi_power_seq_show, PDE(inode)->data);
}
static int acpi_power_add_fs(struct acpi_device *device)
{
struct proc_dir_entry *entry = NULL;
if (!device)
return -EINVAL;
if (!acpi_device_dir(device)) {
acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
acpi_power_dir);
if (!acpi_device_dir(device))
return -ENODEV;
}
/* 'status' [R] */
entry = proc_create_data(ACPI_POWER_FILE_STATUS,
S_IRUGO, acpi_device_dir(device),
&acpi_power_fops, acpi_driver_data(device));
if (!entry)
return -EIO;
return 0;
}
static int acpi_power_remove_fs(struct acpi_device *device)
{
if (acpi_device_dir(device)) {
remove_proc_entry(ACPI_POWER_FILE_STATUS,
acpi_device_dir(device));
remove_proc_entry(acpi_device_bid(device), acpi_power_dir);
acpi_device_dir(device) = NULL;
}
return 0;
}
/* --------------------------------------------------------------------------
Driver Interface
-------------------------------------------------------------------------- */
@ -690,10 +583,6 @@ static int acpi_power_add(struct acpi_device *device)
break;
}
result = acpi_power_add_fs(device);
if (result)
goto end;
printk(KERN_INFO PREFIX "%s [%s] (%s)\n", acpi_device_name(device),
acpi_device_bid(device), state ? "on" : "off");
@ -715,8 +604,6 @@ static int acpi_power_remove(struct acpi_device *device, int type)
resource = acpi_driver_data(device);
acpi_power_remove_fs(device);
mutex_lock(&resource->resource_lock);
list_for_each_safe(node, next, &resource->reference) {
struct acpi_power_reference *ref = container_of(node, struct acpi_power_reference, node);
@ -760,19 +647,6 @@ static int acpi_power_resume(struct acpi_device *device)
int __init acpi_power_init(void)
{
int result = 0;
INIT_LIST_HEAD(&acpi_power_resource_list);
acpi_power_dir = proc_mkdir(ACPI_POWER_CLASS, acpi_root_dir);
if (!acpi_power_dir)
return -ENODEV;
result = acpi_bus_register_driver(&acpi_power_driver);
if (result < 0) {
remove_proc_entry(ACPI_POWER_CLASS, acpi_root_dir);
return -ENODEV;
}
return 0;
return acpi_bus_register_driver(&acpi_power_driver);
}