gpu/drm/drm_mode_config.c

581  * possible_clones. Make life easy for drivers by allowing them
582  * to leave possible_clones unset if no cloning is possible.
586 	if (encoder->possible_clones == 0)
587 		encoder->possible_clones = drm_encoder_mask(encoder);
597 		WARN(!!(encoder->possible_clones & drm_encoder_mask(other)) !=
598 		     !!(other->possible_clones & drm_encoder_mask(encoder)),
599 		     "possible_clones mismatch: "
600 		     "[ENCODER:%d:%s] mask=0x%x possible_clones=0x%x vs. "
601 		     "[ENCODER:%d:%s] mask=0x%x possible_clones=0x%x\n",
603 		     drm_encoder_mask(encoder), encoder->possible_clones,
605 		     drm_encoder_mask(other), other->possible_clones);
608 	WARN((encoder->possible_clones & drm_encoder_mask(encoder)) == 0 ||
609 	     (encoder->possible_clones & ~encoder_mask) != 0,
610 	     "Bogus possible_clones: "
611 	     "[ENCODER:%d:%s] possible_clones=0x%x (full encoder mask=0x%x)\n",
613 	     encoder->possible_clones, encoder_mask);