Re: [PATCH v3 4/5] ACPI / processor_idle : introduce ARCH_SUPPORTS_ACPI_PROCESSOR_CSTATE

From	Sudeep Holla <sudeep.holla@arm.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH v3 4/5] ACPI / processor_idle : introduce ARCH_SUPPORTS_ACPI_PROCESSOR_CSTATE
Date	2016-02-22 14:50 +0100
Message-ID	<r4Z2b-6yP-43@gated-at.bofh.it> (permalink)
References	<qBgqe-8gM-9@gated-at.bofh.it> <qBgqe-8gM-19@gated-at.bofh.it> <r2Ugh-4i7-3@gated-at.bofh.it> <r39p3-6nX-65@gated-at.bofh.it>
Organization	ARM

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Hi Rafael,

On 17/02/16 12:21, Sudeep Holla wrote:
>
>
> On 16/02/16 20:18, Rafael J. Wysocki wrote:

[..]

>
>> This way it all should work without any new Kconfig options.
>>
>
> I agree with you in terms of avoiding new Kconfig option. However the
> main reason for adding it is to avoid declaring dummy functions and
> variables on ARM64.
>
> It's hard to justify the maintainers as it's totally useless on ARM64.
> E.g. boot_option_idle_override, IDLE_NOMWAIT, acpi_unlazy_tlb,
> arch_safe_halt.
>
> Other option is to push those under CONFIG_X86, but then I don't have
> much idea on what are all needed for IA64, so took an option that
> encapsulates everything under CSTATE feature Kconfig, which is not user
> visible and selected by archs supporting it by default.
>
> I am open to any other alternative.
>

Whatever alternative methods I tried so far ended up much horrible than
this. So any suggestions are much appreciated.

-- 
Regards,
Sudeep

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Re: [PATCH v3 4/5] ACPI / processor_idle : introduce ARCH_SUPPORTS_ACPI_PROCESSOR_CSTATE "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-02-16 21:20 +0100
  Re: [PATCH v3 4/5] ACPI / processor_idle : introduce  ARCH_SUPPORTS_ACPI_PROCESSOR_CSTATE Sudeep Holla <sudeep.holla@arm.com> - 2016-02-17 13:30 +0100
    Re: [PATCH v3 4/5] ACPI / processor_idle : introduce  ARCH_SUPPORTS_ACPI_PROCESSOR_CSTATE Sudeep Holla <sudeep.holla@arm.com> - 2016-02-22 14:50 +0100

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