Re: linux-next: Tree for Nov 27 (drivers/idle/intel_idle.c)

From: Randy Dunlap
Date: Fri Nov 27 2020 - 16:50:44 EST


On 11/27/20 1:36 PM, Stephen Rothwell wrote:
> Hi Randy,
>
> On Fri, 27 Nov 2020 07:57:32 -0800 Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote:
>>
>> On 11/27/20 1:04 AM, Stephen Rothwell wrote:
>>> Hi all,
>>>
>>> Changes since 20201126:
>>>
>>
>> (This looks strange to me.)
>>
>>
>> on i386 or x86_64:
>>
>> # CONFIG_ACPI is not set
>>
>> ../drivers/idle/intel_idle.c: In function ‘intel_idle_init_cstates_icpu’:
>> ../drivers/idle/intel_idle.c:1510:7: error: implicit declaration of function ‘intel_idle_state_needs_timer_stop’; did you mean ‘intel_idle_init_cstates_icpu’? [-Werror=implicit-function-declaration]
>> if (intel_idle_state_needs_timer_stop(&drv->states[drv->state_count]))
>> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> intel_idle_state_needs_timer_stop() is only defined when
> CONFIG_ACPI_PROCESSOR_CSTATE is set, but is used once where that is not
> necessarily set. I assume CONFIG_ACPI_PROCESSOR_CSTATE is not set in
> your config?

Yes, you are correct (not set).

> Caused by commit
>
> 6e1d2bc675bd ("intel_idle: Fix intel_idle() vs tracing")
>
> from the tip tree.


--
~Randy