tty: Split tty_port into its own file

[linux-2.6.git] / drivers / char / tty_io.c

diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index 3a726936aa5bd3198bba9f8055e070b88d6778a7..732316899ca48cc1bcaebaa842aad216e0d2ed54 100644 (file)
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -1139,42 +1139,6 @@ ssize_t redirected_tty_write(struct file *file, const char __user *buf,
        return tty_write(file, buf, count, ppos);
 }
 
-void tty_port_init(struct tty_port *port)
-{
-       memset(port, 0, sizeof(*port));
-       init_waitqueue_head(&port->open_wait);
-       init_waitqueue_head(&port->close_wait);
-       mutex_init(&port->mutex);
-       port->close_delay = (50 * HZ) / 100;
-       port->closing_wait = (3000 * HZ) / 100;
-}
-EXPORT_SYMBOL(tty_port_init);
-
-int tty_port_alloc_xmit_buf(struct tty_port *port)
-{
-       /* We may sleep in get_zeroed_page() */
-       mutex_lock(&port->mutex);
-       if (port->xmit_buf == NULL)
-               port->xmit_buf = (unsigned char *)get_zeroed_page(GFP_KERNEL);
-       mutex_unlock(&port->mutex);
-       if (port->xmit_buf == NULL)
-               return -ENOMEM;
-       return 0;
-}
-EXPORT_SYMBOL(tty_port_alloc_xmit_buf);
-
-void tty_port_free_xmit_buf(struct tty_port *port)
-{
-       mutex_lock(&port->mutex);
-       if (port->xmit_buf != NULL) {
-               free_page((unsigned long)port->xmit_buf);
-               port->xmit_buf = NULL;
-       }
-       mutex_unlock(&port->mutex);
-}
-EXPORT_SYMBOL(tty_port_free_xmit_buf);
-
-
 static char ptychar[] = "pqrstuvwxyzabcde";
 
 /**