On Wed, Oct 19, 2011 at 10:47 AM, <pingfank@xxxxxxxxxxxxxxxxxx> wrote:
> From: Liu Ping Fan <pingfank@xxxxxxxxxxxxxxxxxx>
>
> Call the remove handler for ACPI_NOTIFY_EJECT_REQUEST
>
> Signed-off-by: Liu Ping Fan <pingfank@xxxxxxxxxxxxxxxxxx>
> ---
> drivers/acpi/bus.c | 2 +-
> drivers/acpi/scan.c | 2 +-
> include/acpi/acpi_bus.h | 2 ++
> 3 files changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
> index 437ddbf..d06ec6d 100644
> --- a/drivers/acpi/bus.c
> +++ b/drivers/acpi/bus.c
> @@ -764,7 +764,7 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
> break;
>
> case ACPI_NOTIFY_EJECT_REQUEST:
> - /* TBD */
> + acpi_os_hotplug_execute(acpi_bus_hot_remove_device, handle);
> break;
>
> case ACPI_NOTIFY_DEVICE_CHECK_LIGHT:
> diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
> index 449c556..3b97b61 100644
> --- a/drivers/acpi/scan.c
> +++ b/drivers/acpi/scan.c
> @@ -83,7 +83,7 @@ acpi_device_modalias_show(struct device *dev, struct device_attribute *attr, cha
> }
> static DEVICE_ATTR(modalias, 0444, acpi_device_modalias_show, NULL);
>
> -static void acpi_bus_hot_remove_device(void *context)
> +void acpi_bus_hot_remove_device(void *context)
> {
> struct acpi_device *device;
> acpi_handle handle = context;
> diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
> index 6cd5b64..b19c09d 100644
> --- a/include/acpi/acpi_bus.h
> +++ b/include/acpi/acpi_bus.h
> @@ -310,6 +310,8 @@ 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);
> +extern void acpi_bus_hot_remove_device(void *context);
> +
> /*
> * External Functions
> */
> --
> 1.7.4.4
>
I preferred the patch from Shen before. Here is the link:
https://lkml.org/lkml/2011/9/24/15
As Bjorn said, "long-term goal to move the hotplug flow out of drivers and into
the ACPI core". An arbitrary change in the global level just mess up the codes.
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