Re: [PATCH v2 1/7] ACPI: Add CONFIG_HOTPLUG_OST option

Jiang Liu
2012-05-10T16:41:01Z

On 05/09/2012 04:12 AM, Toshi Kani wrote:
> Added CONFIG_ACPI_HOTPLUG_OPT option. When this config option is disabled,
> this patchset has no effect on the platform. This option is disabled by
> default. The dependency list assures consistent behavior among CPU, memory
> and container hotplug operations with regarding the _OST support.
Seems also need to enhance the acpiphp driver for PCI hotplug operations too.
acpiphp driver is also based on the ACPI device hotplug model.

>
> Signed-off-by: Toshi Kani <toshi.kani@hp.com>
> ---
> drivers/acpi/Kconfig | 14 ++++++++++++++
> 1 files changed, 14 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
> index 47768ff..1e3a756 100644
> --- a/drivers/acpi/Kconfig
> +++ b/drivers/acpi/Kconfig
> @@ -351,6 +351,20 @@ config ACPI_HOTPLUG_MEMORY
> To compile this driver as a module, choose M here:
> the module will be called acpi_memhotplug.
>
> +config ACPI_HOTPLUG_OST
> + bool "Hotplug Status Indication Support"
> + depends on ACPI_HOTPLUG_CPU
> + depends on ACPI_HOTPLUG_MEMORY
> + depends on ACPI_CONTAINER
> + default n
> + help
> + This option enables the use of the ACPI OSPM Status Indication
> + (_OST), if available, for the platform to determine the status
> + of various hotplug operations. Some platforms may require this
> + option be enabled to track the status of hotplug operations.
> + This option has no effect when the platform does not support
> + _OST.
> +
> config ACPI_SBS
> tristate "Smart Battery System"
> depends on X86