Re: [RFC v9 PATCH 06/21] memory-hotplug: export the function acpi_bus_remove()

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On 09/05/2012 05:25 PM, wency@xxxxxxxxxxxxxx wrote:
From: Wen Congyang <wency@xxxxxxxxxxxxxx>

The function acpi_bus_remove() can remove a acpi device from acpi device.

IIUC, s/acpi device/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: David Rientjes <rientjes@xxxxxxxxxx>
CC: Jiang Liu <liuj97@xxxxxxxxx>
CC: Len Brown <len.brown@xxxxxxxxx>
CC: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
CC: Paul Mackerras <paulus@xxxxxxxxx>
CC: Christoph Lameter <cl@xxxxxxxxx>
Cc: Minchan Kim <minchan.kim@xxxxxxxxx>
CC: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
CC: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
CC: Yasuaki Ishimatsu <isimatu.yasuaki@xxxxxxxxxxxxxx>
Signed-off-by: Wen Congyang <wency@xxxxxxxxxxxxxx>
---
  drivers/acpi/scan.c     |    3 ++-
  include/acpi/acpi_bus.h |    1 +
  2 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index d1ecca2..1cefc34 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1224,7 +1224,7 @@ static int acpi_device_set_context(struct acpi_device *device)
  	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_device *dev, int rmdevice)
return 0;
  }
+EXPORT_SYMBOL(acpi_bus_remove);
static int acpi_add_single_object(struct acpi_device **child,
  				  acpi_handle handle, int type,
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index bde976e..2ccf109 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -360,6 +360,7 @@ bool acpi_bus_power_manageable(acpi_handle handle);
  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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