In several cases, functions take handle and parent device pointers in
addition to acpi_device pointers. But the acpi_device structure contains
both the handle and the parent pointer, so it's pointless and error-prone
to pass them all. This patch removes the unnecessary "handle" and "parent"
arguments.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@xxxxxx>
---
drivers/acpi/scan.c | 28 ++++++++++++----------------
1 files changed, 12 insertions(+), 16 deletions(-)
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 091d967..aade372 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -470,12 +470,12 @@ struct bus_type acpi_bus_type = {
.uevent = acpi_device_uevent,
};
-static int acpi_device_register(struct acpi_device *device,
- struct acpi_device *parent)
+static int acpi_device_register(struct acpi_device *device)
{
int result;
struct acpi_device_bus_id *acpi_device_bus_id, *new_bus_id;
int found = 0;
+
/*
* Linkage
* -------
@@ -520,7 +520,7 @@ static int acpi_device_register(struct acpi_device *device,
mutex_unlock(&acpi_device_lock);
if (device->parent)
- device->dev.parent = &parent->dev;
+ device->dev.parent = &device->parent->dev;
device->dev.bus = &acpi_bus_type;
device->dev.release = &acpi_device_release;
result = device_register(&device->dev);
@@ -913,8 +913,7 @@ static int acpi_bus_get_flags(struct acpi_device *device)
return 0;
}
-static void acpi_device_get_busid(struct acpi_device *device,
- acpi_handle handle, int type)
+static void acpi_device_get_busid(struct acpi_device *device, int type)
{
char bus_id[5] = { '?', 0 };
struct acpi_buffer buffer = { sizeof(bus_id), bus_id };
@@ -937,7 +936,7 @@ static void acpi_device_get_busid(struct acpi_device *device,
strcpy(device->pnp.bus_id, "SLPF");
break;
default:
- acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer);
+ acpi_get_name(device->handle, ACPI_SINGLE_NAME, &buffer);
/* Clean up trailing underscores (if any) */
for (i = 3; i > 1; i--) {
if (bus_id[i] == '_')
@@ -995,9 +994,7 @@ static int acpi_dock_match(struct acpi_device *device)
return acpi_get_handle(device->handle, "_DCK", &tmp);
}
-static void acpi_device_set_id(struct acpi_device *device,
- struct acpi_device *parent, acpi_handle handle,
- int type)
+static void acpi_device_set_id(struct acpi_device *device, int type)
{
struct acpi_device_info *info;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
@@ -1009,7 +1006,7 @@ static void acpi_device_set_id(struct acpi_device *device,
switch (type) {
case ACPI_BUS_TYPE_DEVICE:
- status = acpi_get_object_info(handle, &buffer);
+ status = acpi_get_object_info(device->handle, &buffer);
if (ACPI_FAILURE(status)) {
printk(KERN_ERR PREFIX "%s: Error reading device info\n", __func__);
return;
@@ -1065,7 +1062,8 @@ static void acpi_device_set_id(struct acpi_device *device,
* ----
* Fix for the system root bus device -- the only root-level device.
*/
- if (((acpi_handle)parent == ACPI_ROOT_OBJECT) && (type == ACPI_BUS_TYPE_DEVICE)) {
+ if (((acpi_handle)device->parent == ACPI_ROOT_OBJECT) &&
+ (type == ACPI_BUS_TYPE_DEVICE)) {
hid = ACPI_BUS_HID;
strcpy(device->pnp.device_name, ACPI_BUS_DEVICE_NAME);
strcpy(device->pnp.device_class, ACPI_BUS_CLASS);
@@ -1194,8 +1192,7 @@ acpi_add_single_object(struct acpi_device **child,
device->parent = parent;
device->bus_ops = *ops; /* workround for not call .start */
-
- acpi_device_get_busid(device, handle, type);
+ acpi_device_get_busid(device, type);
/*
* Flags
@@ -1258,7 +1255,7 @@ acpi_add_single_object(struct acpi_device **child,
* Hardware ID, Unique ID, & Bus Address
* -------------------------------------
*/
- acpi_device_set_id(device, parent, handle, type);
+ acpi_device_set_id(device, type);
/*
* The ACPI device is attached to acpi handle before getting
@@ -1300,8 +1297,7 @@ acpi_add_single_object(struct acpi_device **child,
goto end;
}
-
- result = acpi_device_register(device, parent);
+ result = acpi_device_register(device);
/*
* Bind _ADR-Based Devices when hot add
--
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