USB: Add udev argument to interface suspend/resume functions

This patch (as1127) makes a minor change to the prototypes of the
usb_suspend_interface() and usb_resume_interface() routines.  Now the
usb_device structure is passed as an argument, instead of being
computed on-the-fly from the usb_interface argument.

It makes the code look simpler, even if it really isn't much different
from before.

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 2be37fe..ed1cc85 100644 (file)
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -926,14 +926,14 @@ static int usb_resume_device(struct usb_device *udev)
 }
 
 /* Caller has locked intf's usb_device's pm mutex */
-static int usb_suspend_interface(struct usb_interface *intf, pm_message_t msg)
+static int usb_suspend_interface(struct usb_device *udev,
+               struct usb_interface *intf, pm_message_t msg)
 {
        struct usb_driver       *driver;
        int                     status = 0;
 
        /* with no hardware, USB interfaces only use FREEZE and ON states */
-       if (interface_to_usbdev(intf)->state == USB_STATE_NOTATTACHED ||
-                       !is_active(intf))
+       if (udev->state == USB_STATE_NOTATTACHED || !is_active(intf))
                goto done;
 
        if (intf->condition == USB_INTERFACE_UNBOUND)   /* This can't happen */
@@ -944,7 +944,7 @@ static int usb_suspend_interface(struct usb_interface *intf, pm_message_t msg)
                status = driver->suspend(intf, msg);
                if (status == 0)
                        mark_quiesced(intf);
-               else if (!interface_to_usbdev(intf)->auto_pm)
+               else if (!udev->auto_pm)
                        dev_err(&intf->dev, "%s error %d\n",
                                        "suspend", status);
        } else {
@@ -961,13 +961,13 @@ static int usb_suspend_interface(struct usb_interface *intf, pm_message_t msg)
 }
 
 /* Caller has locked intf's usb_device's pm_mutex */
-static int usb_resume_interface(struct usb_interface *intf, int reset_resume)
+static int usb_resume_interface(struct usb_device *udev,
+               struct usb_interface *intf, int reset_resume)
 {
        struct usb_driver       *driver;
        int                     status = 0;
 
-       if (interface_to_usbdev(intf)->state == USB_STATE_NOTATTACHED ||
-                       is_active(intf))
+       if (udev->state == USB_STATE_NOTATTACHED || is_active(intf))
                goto done;
 
        /* Don't let autoresume interfere with unbinding */
@@ -1151,7 +1151,7 @@ static int usb_suspend_both(struct usb_device *udev, pm_message_t msg)
        if (udev->actconfig) {
                for (; i < udev->actconfig->desc.bNumInterfaces; i++) {
                        intf = udev->actconfig->interface[i];
-                       status = usb_suspend_interface(intf, msg);
+                       status = usb_suspend_interface(udev, intf, msg);
                        if (status != 0)
                                break;
                }
@@ -1163,7 +1163,7 @@ static int usb_suspend_both(struct usb_device *udev, pm_message_t msg)
        if (status != 0) {
                while (--i >= 0) {
                        intf = udev->actconfig->interface[i];
-                       usb_resume_interface(intf, 0);
+                       usb_resume_interface(udev, intf, 0);
                }
 
                /* Try another autosuspend when the interfaces aren't busy */
@@ -1276,7 +1276,7 @@ static int usb_resume_both(struct usb_device *udev)
        if (status == 0 && udev->actconfig) {
                for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) {
                        intf = udev->actconfig->interface[i];
-                       usb_resume_interface(intf, udev->reset_resume);
+                       usb_resume_interface(udev, intf, udev->reset_resume);
                }
        }