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    SubjectRe: [RFC v9 PATCH 06/21] memory-hotplug: export the function acpi_bus_remove()
    On 09/05/2012 05:25 PM, wency@cn.fujitsu.com wrote:
    > From: Wen Congyang <wency@cn.fujitsu.com>
    >
    > 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@google.com>
    > CC: Jiang Liu <liuj97@gmail.com>
    > CC: Len Brown <len.brown@intel.com>
    > CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    > CC: Paul Mackerras <paulus@samba.org>
    > CC: Christoph Lameter <cl@linux.com>
    > Cc: Minchan Kim <minchan.kim@gmail.com>
    > CC: Andrew Morton <akpm@linux-foundation.org>
    > CC: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
    > CC: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
    > Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
    > ---
    > 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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