From: Peter Hurley <peter@hurleysoftware.com>
Date: Sat, 15 Jun 2013 13:36:14 +0000 (-0400)
Subject: tty: Merge __tty_flush_buffer() into lone call site
X-Git-Tag: MMI-PSA29.97-13-9~13777^2~184
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=47aa658a015440906def231f54685c4d5d49dc38;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git

tty: Merge __tty_flush_buffer() into lone call site

__tty_flush_buffer() is now only called by tty_flush_buffer();
merge functions.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c
index fb042b9a8d68..dbe4a718e2dc 100644
--- a/drivers/tty/tty_buffer.c
+++ b/drivers/tty/tty_buffer.c
@@ -150,28 +150,6 @@ static void tty_buffer_free(struct tty_port *port, struct tty_buffer *b)
 		llist_add(&b->free, &buf->free);
 }
 
-/**
- *	__tty_buffer_flush		-	flush full tty buffers
- *	@tty: tty to flush
- *
- *	flush all the buffers containing receive data. Caller must
- *	hold the buffer lock and must have ensured no parallel flush to
- *	ldisc is running.
- */
-
-static void __tty_buffer_flush(struct tty_port *port)
-{
-	struct tty_bufhead *buf = &port->buf;
-	struct tty_buffer *next;
-
-	while ((next = buf->head->next) != NULL) {
-		tty_buffer_free(port, buf->head);
-		buf->head = next;
-	}
-	WARN_ON(buf->head != buf->tail);
-	buf->head->read = buf->head->commit;
-}
-
 /**
  *	tty_buffer_flush		-	flush full tty buffers
  *	@tty: tty to flush
@@ -188,11 +166,16 @@ void tty_buffer_flush(struct tty_struct *tty)
 {
 	struct tty_port *port = tty->port;
 	struct tty_bufhead *buf = &port->buf;
+	struct tty_buffer *next;
 
 	buf->flushpending = 1;
 
 	mutex_lock(&buf->flush_mutex);
-	__tty_buffer_flush(port);
+	while ((next = buf->head->next) != NULL) {
+		tty_buffer_free(port, buf->head);
+		buf->head = next;
+	}
+	buf->head->read = buf->head->commit;
 	buf->flushpending = 0;
 	mutex_unlock(&buf->flush_mutex);
 }