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/mxs-auart.c b/drivers/tty/serial/mxs-auart.c
index 37a0046..df0ba32 100644
--- a/drivers/tty/serial/mxs-auart.c
+++ b/drivers/tty/serial/mxs-auart.c
@@ -364,7 +364,6 @@
static void mxs_auart_rx_chars(struct mxs_auart_port *s)
{
- struct tty_struct *tty = s->port.state->port.tty;
u32 stat = 0;
for (;;) {
@@ -375,7 +374,7 @@
}
writel(stat, s->port.membase + AUART_STAT);
- tty_flip_buffer_push(tty);
+ tty_flip_buffer_push(&s->port.state->port);
}
static int mxs_auart_request_port(struct uart_port *u)
@@ -458,7 +457,6 @@
{
struct mxs_auart_port *s = (struct mxs_auart_port *) arg;
struct tty_port *port = &s->port.state->port;
- struct tty_struct *tty = port->tty;
int count;
u32 stat;
@@ -472,7 +470,7 @@
tty_insert_flip_string(port, s->rx_dma_buf, count);
writel(stat, s->port.membase + AUART_STAT);
- tty_flip_buffer_push(tty);
+ tty_flip_buffer_push(port);
/* start the next DMA for RX. */
mxs_auart_dma_prep_rx(s);