Defined in 4 files as a function:
- arch/ia64/hp/sim/simserial.c, line 414 (as a function)
- arch/xtensa/platforms/iss/console.c, line 52 (as a function)
- drivers/tty/amiserial.c, line 1502 (as a function)
- drivers/tty/serial/crisv10.c, line 3846 (as a function)