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ACPI: Replace struct acpi_bus_ops with enum type

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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>
This commit is contained in:
Rafael J. Wysocki
2012-12-21 00:36:43 +01:00
parent ca7b3c4f3d
commit a2d06a1a08
2 changed files with 20 additions and 30 deletions
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15
include/acpi/acpi_bus.h
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@@ -63,6 +63,13 @@ 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,
@@ -95,12 +102,6 @@ typedef int (*acpi_op_bind) (struct acpi_device * device);
typedef int (*acpi_op_unbind) (struct acpi_device * device);
typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event);
struct acpi_bus_ops {
u32 acpi_op_add:1;
u32 acpi_op_start:1;
u32 acpi_op_match:1;
};
struct acpi_device_ops {
acpi_op_add add;
acpi_op_remove remove;
@@ -284,7 +285,7 @@ struct acpi_device {
struct acpi_driver *driver;
void *driver_data;
struct device dev;
struct acpi_bus_ops bus_ops; /* workaround for different code path for hotplug */
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;