drm_dp_msg_data_crc4 375 drivers/gpu/drm/drm_dp_mst_topology.c crc4 = drm_dp_msg_data_crc4(msg, len); drm_dp_msg_data_crc4 438 drivers/gpu/drm/drm_dp_mst_topology.c crc4 = drm_dp_msg_data_crc4(msg->chunk, msg->curchunk_len - 1);