flg = TTY_FRAME;#ifdefSUPPORT_SYSRQport->sysrq =0;#endif}if(uart_handle_sysrq_char(port, ch, regs))gotoignore_char;/* * CHECK: does overrun affect the current character? * ASSUMPTION: it does not. */uart_insert_char(port, ch, UARTDR_OVERR, ch, flg); ignore_char: status = cl...