tag	line	file	source code
change_speed	896	kernel/chr_drv/serial.c	change_speed(info->line);
change_speed	900	kernel/chr_drv/serial.c	change_speed(info->line);
change_speed	1041	kernel/chr_drv/serial.c	change_speed(DEV_TO_SL(tty->line));
change_speed	1261	kernel/chr_drv/serial.c	change_speed(info->line);