ACPI: Replace struct acpi_bus_ops with enum type
Notice that one member of struct acpi_bus_ops, acpi_op_add, is not
used anywhere any more and the relationship between its remaining
members, acpi_op_match and acpi_op_start, is such that it doesn't
make sense to set the latter without setting the former at the same
time. Therefore, replace struct acpi_bus_ops with new a enum type,
enum acpi_bus_add_type, with three values, ACPI_BUS_ADD_BASIC,
ACPI_BUS_ADD_MATCH, ACPI_BUS_ADD_START, corresponding to
both acpi_op_match and acpi_op_start unset, acpi_op_match set and
acpi_op_start unset, and both acpi_op_match and acpi_op_start set,
respectively.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Toshi Kani <toshi.kani@hp.com>
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 8dde0e7..7082d11 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -494,7 +494,7 @@
struct acpi_device *acpi_dev = to_acpi_device(dev);
struct acpi_driver *acpi_drv = to_acpi_driver(drv);
- return acpi_dev->bus_ops.acpi_op_match
+ return acpi_dev->add_type >= ACPI_BUS_ADD_MATCH
&& !acpi_match_device_ids(acpi_dev, acpi_drv->ids);
}
@@ -580,7 +580,7 @@
ret = acpi_bus_driver_init(acpi_dev, acpi_drv);
if (!ret) {
- if (acpi_dev->bus_ops.acpi_op_start)
+ if (acpi_dev->add_type == ACPI_BUS_ADD_START)
acpi_start_single_object(acpi_dev);
if (acpi_drv->ops.notify) {
@@ -1433,7 +1433,7 @@
static int acpi_add_single_object(struct acpi_device **child,
acpi_handle handle, int type,
unsigned long long sta,
- struct acpi_bus_ops *ops)
+ enum acpi_bus_add_type add_type)
{
int result;
struct acpi_device *device;
@@ -1449,7 +1449,7 @@
device->device_type = type;
device->handle = handle;
device->parent = acpi_bus_get_parent(handle);
- device->bus_ops = *ops; /* workround for not call .start */
+ device->add_type = add_type;
STRUCT_TO_INT(device->status) = sta;
acpi_device_get_busid(device);
@@ -1502,7 +1502,7 @@
result = acpi_device_register(device);
- if (device->bus_ops.acpi_op_match)
+ if (device->add_type >= ACPI_BUS_ADD_MATCH)
acpi_hot_add_bind(device);
end:
@@ -1526,16 +1526,12 @@
static void acpi_bus_add_power_resource(acpi_handle handle)
{
- struct acpi_bus_ops ops = {
- .acpi_op_start = 1,
- .acpi_op_match = 1,
- };
struct acpi_device *device = NULL;
acpi_bus_get_device(handle, &device);
if (!device)
acpi_add_single_object(&device, handle, ACPI_BUS_TYPE_POWER,
- ACPI_STA_DEFAULT, &ops);
+ ACPI_STA_DEFAULT, ACPI_BUS_ADD_START);
}
static int acpi_bus_type_and_status(acpi_handle handle, int *type,
@@ -1604,16 +1600,13 @@
acpi_bus_get_device(handle, &device);
if (!device) {
- struct acpi_bus_ops ops = {
- .acpi_op_start = !!context,
- .acpi_op_match = 0,
- };
-
- acpi_add_single_object(&device, handle, type, sta, &ops);
+ acpi_add_single_object(&device, handle, type, sta,
+ ACPI_BUS_ADD_BASIC);
if (!device)
return AE_CTRL_DEPTH;
- device->bus_ops.acpi_op_match = 1;
+ device->add_type = context ?
+ ACPI_BUS_ADD_START : ACPI_BUS_ADD_MATCH;
acpi_hot_add_bind(device);
}
@@ -1793,10 +1786,6 @@
{
int result = 0;
struct acpi_device *device = NULL;
- struct acpi_bus_ops ops = {
- .acpi_op_start = 1,
- .acpi_op_match = 1,
- };
/*
* Enumerate all fixed-feature devices.
@@ -1805,7 +1794,7 @@
result = acpi_add_single_object(&device, NULL,
ACPI_BUS_TYPE_POWER_BUTTON,
ACPI_STA_DEFAULT,
- &ops);
+ ACPI_BUS_ADD_START);
device_init_wakeup(&device->dev, true);
}
@@ -1813,7 +1802,7 @@
result = acpi_add_single_object(&device, NULL,
ACPI_BUS_TYPE_SLEEP_BUTTON,
ACPI_STA_DEFAULT,
- &ops);
+ ACPI_BUS_ADD_START);
}
return result;