linux-kernel - [PATCH 1/2] acpi,memory-hotplug : export the function acpi_bus

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Date:	Thu, 4 Oct 2012 10:46:56 +0900
From:	Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>
To:	<linux-acpi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-mm@...ck.org>
CC:	<len.brown@...el.com>, <wency@...fujitsu.com>
Subject: [PATCH 1/2] acpi,memory-hotplug : export the function acpi_bus_remove()

From: Wen Congyang <wency@...fujitsu.com>

The function acpi_bus_remove() can remove a acpi device from acpi bus.
When a acpi device is removed, we need to call this function to remove
the acpi device from acpi bus. So export this function.

CC: Len Brown <len.brown@...el.com>
Reviewed-by: Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>
Signed-off-by: Wen Congyang <wency@...fujitsu.com>
---
 drivers/acpi/scan.c     |    3 ++-
 include/acpi/acpi_bus.h |    1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

Index: linux-3.6/drivers/acpi/scan.c
===================================================================
--- linux-3.6.orig/drivers/acpi/scan.c	2012-10-03 18:16:57.206246798 +0900
+++ linux-3.6/drivers/acpi/scan.c	2012-10-03 18:17:49.974249714 +0900
@@ -1224,7 +1224,7 @@ static int acpi_device_set_context(struc
 	return -ENODEV;
 }
 
-static int acpi_bus_remove(struct acpi_device *dev, int rmdevice)
+int acpi_bus_remove(struct acpi_device *dev, int rmdevice)
 {
 	if (!dev)
 		return -EINVAL;
@@ -1246,6 +1246,7 @@ static int acpi_bus_remove(struct acpi_d
 
 	return 0;
 }
+EXPORT_SYMBOL(acpi_bus_remove);
 
 static int acpi_add_single_object(struct acpi_device **child,
 				  acpi_handle handle, int type,
Index: linux-3.6/include/acpi/acpi_bus.h
===================================================================
--- linux-3.6.orig/include/acpi/acpi_bus.h	2012-10-03 18:16:57.208246800 +0900
+++ linux-3.6/include/acpi/acpi_bus.h	2012-10-03 18:17:49.976249717 +0900
@@ -360,6 +360,7 @@ bool acpi_bus_power_manageable(acpi_hand
 bool acpi_bus_can_wakeup(acpi_handle handle);
 int acpi_power_resource_register_device(struct device *dev, acpi_handle handle);
 void acpi_power_resource_unregister_device(struct device *dev, acpi_handle handle);
+int acpi_bus_remove(struct acpi_device *dev, int rmdevice);
 #ifdef CONFIG_ACPI_PROC_EVENT
 int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data);
 int acpi_bus_generate_proc_event4(const char *class, const char *bid, u8 type, int data);

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