Hi Ben,

FYI, kernel build failed on

tree:   git://people.freedesktop.org/~danvet/drm-intel.git drm-intel-nightly
head:   f0db8c3e57486ae7fdbc52bc157f997394d7d11d
commit: 8c3f929b6147e142efc58d5d03dc6fa703b14a5d [40/142] drm/i915: Enable some sysfs stuff without CONFIG_PM
config: i386-randconfig-b034 (attached as .config)

All related error/warning messages:

drivers/gpu/drm/i915/i915_sysfs.c: In function 'i915_teardown_sysfs':
drivers/gpu/drm/i915/i915_sysfs.c:228:49: error: 'rc6_attr_group' undeclared (first use in this function)
drivers/gpu/drm/i915/i915_sysfs.c:228:49: note: each undeclared identifier is reported only once for each function it appears in

vim +228 drivers/gpu/drm/i915/i915_sysfs.c
   223	}
   224	
   225	void i915_teardown_sysfs(struct drm_device *dev)
   226	{
   227		device_remove_bin_file(&dev->primary->kdev,  &dpf_attrs);
 > 228		sysfs_unmerge_group(&dev->primary->kdev.kobj, &rc6_attr_group);
   229	}

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0-DAY kernel build testing backend         Open Source Technology Centre
Fengguang Wu, Yuanhan Liu                              Intel Corporation