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serial: core, remove uart_update_termios

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Now, uart_update_termios is empty, so it's time to remove it. We no
longer need a live tty in .dtr_rts. So this should prune all the bugs
where tty is zeroed in port->tty during tty_port_block_til_ready.

There is one thing to note. We don't set ASYNC_NORMAL_ACTIVE now. It's
because this is done already in tty_port_block_til_ready.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jiri Slaby 2011-03-30 00:10:57 +02:00 committed by Greg Kroah-Hartman
parent 303a7a1199
commit 6f5c24ad0f
1 changed files with 1 additions and 24 deletions
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25
drivers/tty/serial/serial_core.c
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@ -1470,21 +1470,6 @@ static void uart_hangup(struct tty_struct *tty)
mutex_unlock(&port->mutex);
}
/**
* uart_update_termios - update the terminal hw settings
* @tty: tty associated with UART
* @state: UART to update
*
* Copy across the serial console cflag setting into the termios settings
* for the initial open of the port. This allows continuity between the
* kernel settings, and the settings init adopts when it opens the port
* for the first time.
*/
static void uart_update_termios(struct tty_struct *tty,
struct uart_state *state)
{
}
static int uart_carrier_raised(struct tty_port *port)
{
struct uart_state *state = container_of(port, struct uart_state, port);
@ -1504,16 +1489,8 @@ static void uart_dtr_rts(struct tty_port *port, int onoff)
struct uart_state *state = container_of(port, struct uart_state, port);
struct uart_port *uport = state->uart_port;
if (onoff) {
if (onoff)
uart_set_mctrl(uport, TIOCM_DTR | TIOCM_RTS);
/*
* If this is the first open to succeed,
* adjust things to suit.
*/
if (!test_and_set_bit(ASYNCB_NORMAL_ACTIVE, &port->flags))
uart_update_termios(port->tty, state);
}
else
uart_clear_mctrl(uport, TIOCM_DTR | TIOCM_RTS);
}