From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Sun, 13 Aug 2017 14:47:42 +0000 (+0300)
Subject: serial: core: remove unneeded irq_wake flag
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=aef3ad103a686f21b746977d4ed21cc1af36f589;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

serial: core: remove unneeded irq_wake flag

There is no need to duplicate a flag which IRQ core takes care of.

Replace custom flag by IRQ core API that retrieves its state.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 73ce4e2f7a93..220e1d088c9b 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -36,7 +36,7 @@
 #include <linux/delay.h>
 #include <linux/mutex.h>
 
-#include <asm/irq.h>
+#include <linux/irq.h>
 #include <linux/uaccess.h>
 
 /*
@@ -2083,8 +2083,7 @@ int uart_suspend_port(struct uart_driver *drv, struct uart_port *uport)
 
 	tty_dev = device_find_child(uport->dev, &match, serial_match_port);
 	if (tty_dev && device_may_wakeup(tty_dev)) {
-		if (!enable_irq_wake(uport->irq))
-			uport->irq_wake = 1;
+		enable_irq_wake(uport->irq);
 		put_device(tty_dev);
 		mutex_unlock(&port->mutex);
 		return 0;
@@ -2147,10 +2146,8 @@ int uart_resume_port(struct uart_driver *drv, struct uart_port *uport)
 
 	tty_dev = device_find_child(uport->dev, &match, serial_match_port);
 	if (!uport->suspended && device_may_wakeup(tty_dev)) {
-		if (uport->irq_wake) {
+		if (irqd_is_wakeup_set(irq_get_irq_data((uport->irq))))
 			disable_irq_wake(uport->irq);
-			uport->irq_wake = 0;
-		}
 		put_device(tty_dev);
 		mutex_unlock(&port->mutex);
 		return 0;
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 8dc24c855a70..5553e04e59c9 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -247,7 +247,6 @@ struct uart_port {
 	struct device		*dev;			/* parent device */
 	unsigned char		hub6;			/* this should be in the 8250 driver */
 	unsigned char		suspended;
-	unsigned char		irq_wake;
 	unsigned char		unused[2];
 	const char		*name;			/* port name */
 	struct attribute_group	*attr_group;		/* port specific attributes */