mps2_uart_txirq   276 drivers/tty/serial/mps2-uart.c 	if (mps2_uart_txirq(irq, data) == IRQ_HANDLED)
mps2_uart_txirq   319 drivers/tty/serial/mps2-uart.c 		ret = request_irq(mps_port->tx_irq, mps2_uart_txirq, 0,