tag	line	file	source code
wait_until_sent	259	kernel/chr_drv/tty_ioctl.c	wait_until_sent(tty);
wait_until_sent	272	kernel/chr_drv/tty_ioctl.c	wait_until_sent(tty); /* fallthrough */
wait_until_sent	276	kernel/chr_drv/tty_ioctl.c	wait_until_sent(tty);