3 files changed, 11 insertions, 8 deletions
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 1400ea6a249..1bc00b721e9 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -43,7 +43,6 @@
 
 #include <asm/io.h>
 #include <asm/irq.h>
-#include <asm/serial.h>
 
 #include "8250.h"
 
@@ -93,6 +92,7 @@ static unsigned int nr_uarts = CONFIG_SERIAL_8250_RUNTIME_UARTS;
  */
 #define CONFIG_HUB6 1
 
+#include <asm/serial.h>
 /*
  * SERIAL_PORT_DFNS tells us about built-in ports that have no
  * standard enumeration mechanism.   Platforms that can find all
@@ -1547,8 +1547,6 @@ static int serial_link_irq_chain(struct uart_8250_port *up)
 		i->head = &up->list;
 		spin_unlock_irq(&i->lock);
 
-		irq_flags |= SERIAL_EXTRA_IRQ_FLAGS;
-
 		ret = request_irq(up->port.irq, serial8250_interrupt,
 				  irq_flags, "serial", i);
 		if (ret < 0)
diff --git a/drivers/serial/8250.h b/drivers/serial/8250.h
index a10a40cc0d9..91bd28f2bb4 100644
--- a/drivers/serial/8250.h
+++ b/drivers/serial/8250.h
@@ -78,8 +78,3 @@ struct serial8250_config {
 #else
 #define ALPHA_KLUDGE_MCR 0
 #endif
-
-#ifndef SERIAL_EXTRA_IRQ_FLAGS
-#define SERIAL_EXTRA_IRQ_FLAGS 0
-#endif
-
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index 53b03c629af..951a75ea6e3 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -1165,6 +1165,15 @@ out:
 	return ret;
 }
 
+static void uart_set_ldisc(struct tty_struct *tty, int ldisc)
+{
+	struct uart_state *state = tty->driver_data;
+	struct uart_port *port = state->port;
+
+	if (port->ops->set_ldisc)
+		port->ops->set_ldisc(port);
+}
+
 static void uart_set_termios(struct tty_struct *tty,
 						struct ktermios *old_termios)
 {
@@ -2288,6 +2297,7 @@ static const struct tty_operations uart_ops = {
 	.unthrottle	= uart_unthrottle,
 	.send_xchar	= uart_send_xchar,
 	.set_termios	= uart_set_termios,
+	.set_ldisc	= uart_set_ldisc,
 	.stop		= uart_stop,
 	.start		= uart_start,
 	.hangup		= uart_hangup,