1 files changed, 0 insertions, 8 deletions

diff --git a/include/linux/tty.h b/include/linux/tty.h
index 402de892b3ed..dd8e08fe8855 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -53,13 +53,6 @@
  */
 #define __DISABLED_CHAR '\0'
 
-/*
- * This is the flip buffer used for the tty driver.  The buffer is
- * located in the tty structure, and is used as a high speed interface
- * between the tty driver and the tty line discipline.
- */
-#define TTY_FLIPBUF_SIZE 512
-
 struct tty_buffer {
         struct tty_buffer *next;
         char *char_buf_ptr;
@@ -74,7 +67,6 @@ struct tty_buffer {
 
 struct tty_bufhead {
         struct delayed_work work;
-        struct semaphore pty_sem;
         spinlock_t lock;
         struct tty_buffer *head;        /* Queue head */
         struct tty_buffer *tail;        /* Active buffer */