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ACPI: Replace ACPI device add_type field with a match_driver flag 

After the removal of the second argument of acpi_bus_scan() there is
no difference between the ACPI_BUS_ADD_MATCH and ACPI_BUS_ADD_START
add types, so the add_type field in struct acpi_device may be
replaced with a single flag.  Do that calling the flag match_driver.

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>
This commit is contained in:
Rafael J. Wysocki 2012-12-21 00:36:48 +01:00
parent e3863094c6
commit 209d3b1743
2 changed files with 11 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/acpi/scan.c
View File

@ -494,7 +494,7 @@ static int acpi_bus_match(struct device *dev, struct device_driver *drv)
struct acpi_device *acpi_dev = to_acpi_device(dev);
struct acpi_driver *acpi_drv = to_acpi_driver(drv);
return acpi_dev->add_type >= ACPI_BUS_ADD_MATCH
return acpi_dev->flags.match_driver
&& !acpi_match_device_ids(acpi_dev, acpi_drv->ids);
}
@ -1410,8 +1410,7 @@ static void acpi_hot_add_bind(struct acpi_device *device)
static int acpi_add_single_object(struct acpi_device **child,
acpi_handle handle, int type,
unsigned long long sta,
enum acpi_bus_add_type add_type)
unsigned long long sta, bool match_driver)
{
int result;
struct acpi_device *device;
@ -1427,7 +1426,6 @@ static int acpi_add_single_object(struct acpi_device **child,
device->device_type = type;
device->handle = handle;
device->parent = acpi_bus_get_parent(handle);
device->add_type = add_type;
STRUCT_TO_INT(device->status) = sta;
acpi_device_get_busid(device);
@ -1478,9 +1476,10 @@ static int acpi_add_single_object(struct acpi_device **child,
if ((result = acpi_device_set_context(device)))
goto end;
device->flags.match_driver = match_driver;
result = acpi_device_register(device);
if (device->add_type >= ACPI_BUS_ADD_MATCH)
if (device->flags.match_driver)
acpi_hot_add_bind(device);
end:
@ -1509,7 +1508,7 @@ static void acpi_bus_add_power_resource(acpi_handle handle)
acpi_bus_get_device(handle, &device);
if (!device)
acpi_add_single_object(&device, handle, ACPI_BUS_TYPE_POWER,
ACPI_STA_DEFAULT, ACPI_BUS_ADD_START);
ACPI_STA_DEFAULT, true);
}
static int acpi_bus_type_and_status(acpi_handle handle, int *type,
@ -1580,11 +1579,11 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used,
return AE_CTRL_DEPTH;
}
acpi_add_single_object(&device, handle, type, sta, ACPI_BUS_ADD_BASIC);
acpi_add_single_object(&device, handle, type, sta, false);
if (!device)
return AE_CTRL_DEPTH;
device->add_type = ACPI_BUS_ADD_START;
device->flags.match_driver = true;
acpi_hot_add_bind(device);
out:
@ -1749,16 +1748,14 @@ static int acpi_bus_scan_fixed(void)
if ((acpi_gbl_FADT.flags & ACPI_FADT_POWER_BUTTON) == 0) {
result = acpi_add_single_object(&device, NULL,
ACPI_BUS_TYPE_POWER_BUTTON,
ACPI_STA_DEFAULT,
ACPI_BUS_ADD_START);
ACPI_STA_DEFAULT, true);
device_init_wakeup(&device->dev, true);
}
if ((acpi_gbl_FADT.flags & ACPI_FADT_SLEEP_BUTTON) == 0) {
result = acpi_add_single_object(&device, NULL,
ACPI_BUS_TYPE_SLEEP_BUTTON,
ACPI_STA_DEFAULT,
ACPI_BUS_ADD_START);
ACPI_STA_DEFAULT, true);
}
return result;

11
include/acpi/acpi_bus.h
View File

@ -63,13 +63,6 @@ acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld
#define ACPI_BUS_FILE_ROOT "acpi"
extern struct proc_dir_entry *acpi_root_dir;
enum acpi_bus_add_type {
ACPI_BUS_ADD_BASIC = 0,
ACPI_BUS_ADD_MATCH,
ACPI_BUS_ADD_START,
ACPI_BUS_ADD_TYPE_COUNT
};
enum acpi_bus_removal_type {
ACPI_BUS_REMOVAL_NORMAL = 0,
ACPI_BUS_REMOVAL_EJECT,
@ -150,7 +143,8 @@ struct acpi_device_flags {
u32 power_manageable:1;
u32 performance_manageable:1;
u32 eject_pending:1;
u32 reserved:24;
u32 match_driver:1;
u32 reserved:23;
};
/* File System */
@ -285,7 +279,6 @@ struct acpi_device {
struct acpi_driver *driver;
void *driver_data;
struct device dev;
enum acpi_bus_add_type add_type; /* how to handle adding */
enum acpi_bus_removal_type removal_type; /* indicate for different removal type */
u8 physical_node_count;
struct list_head physical_node_list;