I915_STATE_WARN_ON 1297 drivers/gpu/drm/i915/display/intel_display.c 	if (I915_STATE_WARN_ON(drm_crtc_vblank_get(crtc) == 0))
I915_STATE_WARN_ON  404 drivers/gpu/drm/i915/display/intel_dpll_mgr.c 	I915_STATE_WARN_ON(!(HAS_PCH_IBX(dev_priv) || HAS_PCH_CPT(dev_priv)));