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-rw-r--r--Documentation/tty.txt7
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diff --git a/Documentation/tty.txt b/Documentation/tty.txt
index 8ff7bc2a0811..dab56604745d 100644
--- a/Documentation/tty.txt
+++ b/Documentation/tty.txt
@@ -80,13 +80,6 @@ receive_buf() - Hand buffers of bytes from the driver to the ldisc
for processing. Semantics currently rather
mysterious 8(
-receive_room() - Can be called by the driver layer at any time when
- the ldisc is opened. The ldisc must be able to
- handle the reported amount of data at that instant.
- Synchronization between active receive_buf and
- receive_room calls is down to the driver not the
- ldisc. Must not sleep.
-
write_wakeup() - May be called at any point between open and close.
The TTY_DO_WRITE_WAKEUP flag indicates if a call
is needed but always races versus calls. Thus the