[SERIAL] uart_get_divisor() and uart_get_baud_rate() takes termios.

Currently, uart_get_divisor() and uart_get_baud_rate() take a tty
structure.  We really want them to take a termios structure so we
can avoid passing a tty structure all  the way down to the low level
drivers.

In order to do this, we need to be able to convert a termios
structure to a numeric baud rate - we provide tty_termios_baud_rate() in
tty_io.c for this purpose.  It performs a subset of the
tty_get_baud_rate() functionality, but without any "alt_speed"
kludge.

We finally export uart_get_baud_rate() and uart_get_divisor() to for
low level drivers to use.  We now have all the functions in place
to support ports which want to have access to the real baud rate
rather than a divisor value.

1 files changed, 0 insertions, 5 deletions

diff --git a/kernel/ksyms.c b/kernel/ksyms.c
index 092018c75a66..98093272d3e8 100644
--- a/kernel/ksyms.c
+++ b/kernel/ksyms.c
@@ -353,13 +353,8 @@ EXPORT_SYMBOL(generic_file_writev);
 EXPORT_SYMBOL(iov_shorten);
 
 /* tty routines */
-EXPORT_SYMBOL(tty_hangup);
 EXPORT_SYMBOL(tty_wait_until_sent);
-EXPORT_SYMBOL(tty_check_change);
-EXPORT_SYMBOL(tty_hung_up_p);
 EXPORT_SYMBOL(tty_flip_buffer_push);
-EXPORT_SYMBOL(tty_get_baud_rate);
-EXPORT_SYMBOL(do_SAK);
 
 /* filesystem registration */
 EXPORT_SYMBOL(register_filesystem);