Re: [PATCH] Documentation / cpu hotplug: remove outdated description for MADT entries

Rob Landley
2013-06-21T04:30:31Z

On 06/20/2013 03:54:42 AM, Hanjun Guo wrote:
> More than 256 entries in ACPI MADT is supported from ACPI 3.0
> Specification,
> So the outdated description for MADT entries should be removed.
>
> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
> ---
> Documentation/cpu-hotplug.txt | 3 ---
> 1 file changed, 3 deletions(-)

Acked-by: Rob Landley <rob@landley.net>

> diff --git a/Documentation/cpu-hotplug.txt
> b/Documentation/cpu-hotplug.txt
> index 9f40135..2e36e40 100644
> --- a/Documentation/cpu-hotplug.txt
> +++ b/Documentation/cpu-hotplug.txt
> @@ -370,9 +370,6 @@ A: There is no clear spec defined way from ACPI
> that can give us that
> CPUs in MADT as hotpluggable CPUS. In the case there are no
> disabled CPUS
> we assume 1/2 the number of CPUs currently present can be
> hotplugged.
>
> - Caveat: Today's ACPI MADT can only provide 256 entries since the
> apicid field
> - in MADT is only 8 bits.
> -
> User Space Notification
>
> Hotplug support for devices is common in Linux today. Its being used
> today to
> --
> 1.7.9.5
>
>