Function prototype or declaration at include/linux/tty.h, line 570 References: drivers/isdn/i4l/isdn_tty.c, line 1488 drivers/s390/char/con3215.c, line 970 drivers/s390/char/tty3270.c, line 925 drivers/s390/char/tty3270.c, line 973 drivers/tty/hvc/hvc_console.c, line 328 drivers/tty/hvc/hvcs.c, line 1157 drivers/tty/metag_da.c, line 421 drivers/tty/mips_ejtag_fdc.c, line 769 drivers/tty/n_gsm.c, line 2938 drivers/tty/serial/kgdb_nmi.c, line 252 drivers/tty/synclink.c, line 3376 drivers/tty/synclinkmp.c, line 738 drivers/tty/tty_port.c, line 573 drivers/tty/tty_port.c, line 579 drivers/tty/vt/vt.c, line 2881 drivers/usb/serial/usb-serial.c, line 198 include/linux/tty.h, line 570 net/bluetooth/rfcomm/tty.c, line 728 net/irda/ircomm/ircomm_tty.c, line 418