serial8250_request_dma  306 drivers/tty/serial/8250/8250.h extern int serial8250_request_dma(struct uart_8250_port *);
serial8250_request_dma  240 drivers/tty/serial/8250/8250_dma.c EXPORT_SYMBOL_GPL(serial8250_request_dma);
serial8250_request_dma  632 drivers/tty/serial/8250/8250_omap.c 		ret = serial8250_request_dma(up);
serial8250_request_dma 2312 drivers/tty/serial/8250/8250_port.c 		retval = serial8250_request_dma(up);