1 files changed, 3 insertions, 5 deletions

diff --git a/include/linux/tty.h b/include/linux/tty.h
index 60478f6e5dc6..56164d7ba0ad 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -81,11 +81,6 @@ struct tty_bufhead {
         int memory_used;                /* Buffer space used excluding free queue */
 };
 /*
- * The pty uses char_buf and flag_buf as a contiguous buffer
- */
-#define PTY_BUF_SIZE    4*TTY_FLIPBUF_SIZE
-
-/*
  * When a break, frame error, or parity error happens, these codes are
  * stuffed into the flags buffer.
  */
@@ -321,6 +316,9 @@ extern void tty_flip_buffer_push(struct tty_struct *tty);
 extern speed_t tty_get_baud_rate(struct tty_struct *tty);
 extern speed_t tty_termios_baud_rate(struct ktermios *termios);
 extern speed_t tty_termios_input_baud_rate(struct ktermios *termios);
+extern void tty_termios_encode_baud_rate(struct ktermios *termios, speed_t ibaud, speed_t obaud);
+extern void tty_encode_baud_rate(struct tty_struct *tty, speed_t ibaud, speed_t obaud);
+extern void tty_termios_copy_hw(struct ktermios *new, struct ktermios *old);
 
 extern struct tty_ldisc *tty_ldisc_ref(struct tty_struct *);
 extern void tty_ldisc_deref(struct tty_ldisc *);