tag	line	file	source code
UART_IER_THRI	260	drivers/char/serial.c	UART_IER_THRI | UART_IER_RDI);
UART_IER_THRI	774	drivers/char/serial.c	UART_IER_THRI | UART_IER_RDI);
UART_IER_THRI	1024	drivers/char/serial.c	UART_IER_THRI | UART_IER_RDI);