On Monday, July 07, 2014 04:54:23 PM Daniel Vetter wrote:

On Wed, Jun 25, 2014 at 01:01:36AM +0200, Rafael J. Wysocki wrote:

quoted

On Tuesday, June 24, 2014 02:43:02 PM Jani Nikula wrote:

quoted

On Thu, 19 Jun 2014, Randy Dunlap [off-list ref] wrote:

quoted

On 06/18/14 23:16, Stephen Rothwell wrote:

quoted

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.

These two things look like bugs to me.  Most likely not tested thoruoughly
enough.

quoted

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?

No, we don't have to.

Back from my vacation and I didn't see a conclusion to this issue here.
Rafael, have you fixed this in your acpi tree or do I need to do something
in drm-intel?

I was on vacation too. :-)

Please have a look if i915 includes acpi/acpi_bus.h directly anywhere.  If so,
it should include linux/acpi.h instead.  I'll fix up the rest in the ACPI tree.

Rafael