guc_verify_doorbells 984 drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c WARN_ON(!guc_verify_doorbells(guc)); guc_verify_doorbells 999 drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c WARN_ON(!guc_verify_doorbells(guc));