linux-kernel - [PATCH 2/3] ACPI: Drop ACPI bus notifier call chain

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Date:	Sat, 29 Jun 2013 00:54:21 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	ACPI Devel Maling List <linux-acpi@...r.kernel.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Jiang Liu <liuj97@...il.com>, Yinghai Lu <yinghai@...nel.org>,
	"Alexander E. Patrakov" <patrakov@...il.com>
Subject: [PATCH 2/3] ACPI: Drop ACPI bus notifier call chain

From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

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@...el.com>
---
 drivers/acpi/bus.c      |   16 ----------------
 include/acpi/acpi_bus.h |    2 --
 2 files changed, 18 deletions(-)

Index: linux-pm/drivers/acpi/bus.c
===================================================================
--- linux-pm.orig/drivers/acpi/bus.c
+++ linux-pm/drivers/acpi/bus.c
@@ -499,19 +499,6 @@ static void acpi_bus_check_scope(acpi_ha
 	 */
 }
 
-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
 	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:
Index: linux-pm/include/acpi/acpi_bus.h
===================================================================
--- linux-pm.orig/include/acpi/acpi_bus.h
+++ linux-pm/include/acpi/acpi_bus.h
@@ -356,8 +356,6 @@ extern int acpi_notifier_call_chain(stru
 extern int register_acpi_notifier(struct notifier_block *);
 extern int unregister_acpi_notifier(struct notifier_block *);
 
-extern int register_acpi_bus_notifier(struct notifier_block *nb);
-extern void unregister_acpi_bus_notifier(struct notifier_block *nb);
 /*
  * External Functions
  */

--
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