ACPI: Drop ACPI bus notifier call chain

There are no users of the ACPI bus notifier call chain,
acpi_bus_notify_list, any more, so drop it.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 0 insertions, 16 deletions

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index a5a032e2344e..6fd27a9abcda 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -499,19 +499,6 @@ static void acpi_bus_check_scope(acpi_handle handle)
          */
 }
 
-static BLOCKING_NOTIFIER_HEAD(acpi_bus_notify_list);
-int register_acpi_bus_notifier(struct notifier_block *nb)
-{
-        return blocking_notifier_chain_register(&acpi_bus_notify_list, nb);
-}
-EXPORT_SYMBOL_GPL(register_acpi_bus_notifier);
-
-void unregister_acpi_bus_notifier(struct notifier_block *nb)
-{
-        blocking_notifier_chain_unregister(&acpi_bus_notify_list, nb);
-}
-EXPORT_SYMBOL_GPL(unregister_acpi_bus_notifier);
-
 /**
  * acpi_bus_notify
  * ---------------
@@ -525,9 +512,6 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
         ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Notification %#02x to handle %p\n",
                           type, handle));
 
-        blocking_notifier_call_chain(&acpi_bus_notify_list,
-                type, (void *)handle);
-
         switch (type) {
 
         case ACPI_NOTIFY_BUS_CHECK: