TTY: switch tty_flip_buffer_push
Now, we start converting tty buffer functions to actually use
tty_port. This will allow us to get rid of the need of tty in many
call sites. Only tty_port will needed and hence no more
tty_port_tty_get in those paths.
Now, the one where most of tty_port_tty_get gets removed:
tty_flip_buffer_push.
IOW we also closed all the races in drivers not using tty_port_tty_get
at all yet.
Also we move tty_flip_buffer_push declaration from include/linux/tty.h
to include/linux/tty_flip.h to all others while we are changing it
anyway.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/sunhv.c b/drivers/tty/serial/sunhv.c
index defe92b..ba60708 100644
--- a/drivers/tty/serial/sunhv.c
+++ b/drivers/tty/serial/sunhv.c
@@ -181,17 +181,17 @@
static struct sunhv_ops *sunhv_ops = &bychar_ops;
-static struct tty_struct *receive_chars(struct uart_port *port)
+static struct tty_port *receive_chars(struct uart_port *port)
{
- struct tty_struct *tty = NULL;
+ struct tty_port *tport = NULL;
if (port->state != NULL) /* Unopened serial console */
- tty = port->state->port.tty;
+ tport = &port->state->port;
if (sunhv_ops->receive_chars(port))
sun_do_break();
- return tty;
+ return tport;
}
static void transmit_chars(struct uart_port *port)
@@ -214,16 +214,16 @@
static irqreturn_t sunhv_interrupt(int irq, void *dev_id)
{
struct uart_port *port = dev_id;
- struct tty_struct *tty;
+ struct tty_port *tport;
unsigned long flags;
spin_lock_irqsave(&port->lock, flags);
- tty = receive_chars(port);
+ tport = receive_chars(port);
transmit_chars(port);
spin_unlock_irqrestore(&port->lock, flags);
- if (tty)
- tty_flip_buffer_push(tty);
+ if (tport)
+ tty_flip_buffer_push(tport);
return IRQ_HANDLED;
}