ACPI: bus: Eliminate struct acpi_driver

Now that struct acpi_driver has no more users, eliminate it along with
all of the code related to it.

Also remove the file added by commit b8c8a8ea18ad ("ACPI: Documentation:
driver-api: Disapprove of using ACPI drivers") because it will not be
necessary any more after eliminating struct acpi_driver from the code.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/5132944.31r3eYUQgx@rafael.j.wysocki

1 files changed, 1 insertions, 49 deletions

diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 714d111d8053..7b8051baed75 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -108,7 +108,6 @@ enum acpi_bus_device_type {
 	ACPI_BUS_DEVICE_TYPE_COUNT
 };
 
-struct acpi_driver;
 struct acpi_device;
 
 /*
@@ -159,32 +158,6 @@ struct acpi_hotplug_context {
 };
 
 /*
- * ACPI Driver
- * -----------
- */
-
-typedef int (*acpi_op_add) (struct acpi_device * device);
-typedef void (*acpi_op_remove) (struct acpi_device *device);
-typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event);
-
-struct acpi_device_ops {
-	acpi_op_add add;
-	acpi_op_remove remove;
-	acpi_op_notify notify;
-};
-
-#define ACPI_DRIVER_ALL_NOTIFY_EVENTS	0x1	/* system AND device events */
-
-struct acpi_driver {
-	char name[80];
-	char class[80];
-	const struct acpi_device_id *ids; /* Supported Hardware IDs */
-	unsigned int flags;
-	struct acpi_device_ops ops;
-	struct device_driver drv;
-};
-
-/*
  * ACPI Device
  * -----------
  */
@@ -211,7 +184,6 @@ struct acpi_device_flags {
 	u32 removable:1;
 	u32 ejectable:1;
 	u32 power_manageable:1;
-	u32 match_driver:1;
 	u32 initialized:1;
 	u32 visited:1;
 	u32 hotplug_notify:1;
@@ -221,7 +193,7 @@ struct acpi_device_flags {
 	u32 cca_seen:1;
 	u32 enumeration_by_parent:1;
 	u32 honor_deps:1;
-	u32 reserved:18;
+	u32 reserved:19;
 };
 
 /* File System */
@@ -570,7 +542,6 @@ static inline void *acpi_driver_data(struct acpi_device *d)
 }
 
 #define to_acpi_device(d)	container_of(d, struct acpi_device, dev)
-#define to_acpi_driver(d)	container_of_const(d, struct acpi_driver, drv)
 
 static inline struct acpi_device *acpi_dev_parent(struct acpi_device *adev)
 {
@@ -676,13 +647,6 @@ void acpi_scan_lock_release(void);
 void acpi_lock_hp_context(void);
 void acpi_unlock_hp_context(void);
 int acpi_scan_add_handler(struct acpi_scan_handler *handler);
-/*
- * use a macro to avoid include chaining to get THIS_MODULE
- */
-#define acpi_bus_register_driver(drv) \
-	__acpi_bus_register_driver(drv, THIS_MODULE)
-int __acpi_bus_register_driver(struct acpi_driver *driver, struct module *owner);
-void acpi_bus_unregister_driver(struct acpi_driver *driver);
 int acpi_bus_scan(acpi_handle handle);
 void acpi_bus_trim(struct acpi_device *start);
 acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd);
@@ -696,18 +660,6 @@ static inline bool acpi_device_enumerated(struct acpi_device *adev)
 	return adev && adev->flags.initialized && adev->flags.visited;
 }
 
-/**
- * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver
- * @__acpi_driver: acpi_driver struct
- *
- * Helper macro for ACPI drivers which do not do anything special in module
- * init/exit. This eliminates a lot of boilerplate. Each module may only
- * use this macro once, and calling it replaces module_init() and module_exit()
- */
-#define module_acpi_driver(__acpi_driver) \
-	module_driver(__acpi_driver, acpi_bus_register_driver, \
-		      acpi_bus_unregister_driver)
-
 /*
  * Bind physical devices with ACPI devices
  */