Subject: Re: linux-next: Tree for Jun 19 (drm/i915)

From: Jani Nikula <[email-masked]>
Date: Tue, 24 Jun 2014 14:43:02 +0300

On Thu, 19 Jun 2014, Randy Dunlap <[email-masked]> wrote:
> On 06/18/14 23:16, Stephen Rothwell wrote:
>> Hi all,
>> 
>> The powerpc allyesconfig is again broken more than usual.
>> 
>> Changes since 20140618:
>> 
>
> on i386:
>
> CONFIG_ACPI is not enabled.
>
>   CC      drivers/gpu/drm/i915/i915_drv.o
> ../drivers/gpu/drm/i915/i915_drv.c: In function 'i915_drm_freeze':
> ../drivers/gpu/drm/i915/i915_drv.c:547:2: error: implicit declaration of function 'acpi_target_system_state' [-Werror=implicit-function-declaration]
> ../drivers/gpu/drm/i915/i915_drv.c:547:36: error: 'ACPI_STATE_S3' undeclared (first use in this function)
> ../drivers/gpu/drm/i915/i915_drv.c:547:36: note: each undeclared identifier is reported only once for each function it appears in
>   CC      net/dccp/qpolicy.o
> cc1: some warnings being treated as errors
> make[5]: *** [drivers/gpu/drm/i915/i915_drv.o] Error 1

Thanks for the report, we'll fix it.

Can anyone explain why include/linux/acpi_bus.h has #ifdef
CONFIG_ACPI_SLEEP and conditional build for a dummy inline version of
acpi_target_system_state(), *but* that does not get included or used if
CONFIG_ACPI=n? Additionally, the combination of CONFIG_ACPI=y and
CONFIG_ACPI_SLEEP=n does not seem to work at all.

So we'll really have to sprinkle #ifdef CONFIG_ACPI all over, instead of
neatly using the dummy versions that someone has gone through the
trouble of adding?

BR,
Jani.

-- 
Jani Nikula, Intel Open Source Technology Center