USB: remove the auto_pm flag

This patch (as1302) removes the auto_pm flag from struct usb_device.
The flag's only purpose was to distinguish between autosuspends and
external suspends, but that information is now available in the
pm_message_t argument passed to suspend methods.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index 4f86447..8016a29 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -1341,7 +1341,6 @@
 	int	status = 0;
 
 	usb_pm_lock(udev);
-	udev->auto_pm = 1;
 	udev->pm_usage_cnt += inc_usage_cnt;
 	WARN_ON(udev->pm_usage_cnt < 0);
 	if (inc_usage_cnt)
@@ -1473,7 +1472,6 @@
 	if (intf->condition == USB_INTERFACE_UNBOUND)
 		status = -ENODEV;
 	else {
-		udev->auto_pm = 1;
 		atomic_add(inc_usage_cnt, &intf->pm_usage_cnt);
 		udev->last_busy = jiffies;
 		if (inc_usage_cnt >= 0 &&
@@ -1707,7 +1705,6 @@
 
 	do_unbind_rebind(udev, DO_UNBIND);
 	usb_pm_lock(udev);
-	udev->auto_pm = 0;
 	status = usb_suspend_both(udev, msg);
 	usb_pm_unlock(udev);
 	return status;
@@ -1730,7 +1727,6 @@
 	int	status;
 
 	usb_pm_lock(udev);
-	udev->auto_pm = 0;
 	status = usb_resume_both(udev, msg);
 	udev->last_busy = jiffies;
 	usb_pm_unlock(udev);
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 0d46bbe..8751ec7 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1313,7 +1313,7 @@
 
 	dbg("%s entered", __func__);
 
-	if (serial->dev->auto_pm) {
+	if (message.event & PM_EVENT_AUTO) {
 		spin_lock_irq(&intfdata->susp_lock);
 		b = intfdata->in_flight;
 		spin_unlock_irq(&intfdata->susp_lock);
diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index c5c41ae..ac1b644 100644
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -1005,7 +1005,7 @@
 	struct sierra_intf_private *intfdata;
 	int b;
 
-	if (serial->dev->auto_pm) {
+	if (message.event & PM_EVENT_AUTO) {
 		intfdata = serial->private;
 		spin_lock_irq(&intfdata->susp_lock);
 		b = intfdata->in_flight;