MCP251XFD_OBJ_ID_SID_MASK
sid = FIELD_GET(MCP251XFD_OBJ_ID_SID_MASK, hw_rx_obj->id);
cfd->can_id = FIELD_GET(MCP251XFD_OBJ_ID_SID_MASK,
FIELD_PREP(MCP251XFD_OBJ_ID_SID_MASK, sid);
id = FIELD_PREP(MCP251XFD_OBJ_ID_SID_MASK, cfd->can_id);