USB: rework C++-style comments

This patch (as911) replaces some C++-style commented-out debugging
lines in driver.c with a new "verbose debugging" macro. It makes the
code look cleaner, and it's easier to turn the debugging on or off.

Signed-off-by: Alan Stern <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/usb/core/driver.c

···
 #include "hcd.h"
 #include "usb.h"
 
+#define VERBOSE_DEBUG	0
+
+#if VERBOSE_DEBUG
+#define dev_vdbg	dev_dbg
+#else
+#define dev_vdbg(dev, fmt, args...)	do { } while (0)
+#endif
+
 #ifdef CONFIG_HOTPLUG
 
 /*
···
 	}
 	status = udriver->suspend(udev, msg);
 
-done:
-	// dev_dbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status);
+ done:
+	dev_vdbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status);
 	if (status == 0)
 		udev->dev.power.power_state.event = msg.event;
 	return status;
···
 	udriver = to_usb_device_driver(udev->dev.driver);
 	status = udriver->resume(udev);
 
-done:
-	// dev_dbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status);
+ done:
+	dev_vdbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status);
 	if (status == 0) {
 		udev->autoresume_disabled = 0;
 		udev->dev.power.power_state.event = PM_EVENT_ON;
···
 		mark_quiesced(intf);
 	}
 
-done:
-	// dev_dbg(&intf->dev, "%s: status %d\n", __FUNCTION__, status);
+ done:
+	dev_vdbg(&intf->dev, "%s: status %d\n", __FUNCTION__, status);
 	return status;
 }
 
···
 				driver->name);
 
 done:
-	// dev_dbg(&intf->dev, "%s: status %d\n", __FUNCTION__, status);
+	dev_vdbg(&intf->dev, "%s: status %d\n", __FUNCTION__, status);
 	if (status == 0)
 		mark_active(intf);
 	return status;
···
 	}
 
  done:
-	// dev_dbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status);
+	dev_vdbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status);
 	return status;
 }
 
···
 	}
 
  done:
-	// dev_dbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status);
+	dev_vdbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status);
 	udev->reset_resume = 0;
 	return status;
 }
···
 	int	status;
 
 	status = usb_autopm_do_device(udev, -1);
-	// dev_dbg(&udev->dev, "%s: cnt %d\n",
-	//		__FUNCTION__, udev->pm_usage_cnt);
+	dev_vdbg(&udev->dev, "%s: cnt %d\n",
+			__FUNCTION__, udev->pm_usage_cnt);
 }
 
 /**
···
 void usb_try_autosuspend_device(struct usb_device *udev)
 {
 	usb_autopm_do_device(udev, 0);
-	// dev_dbg(&udev->dev, "%s: cnt %d\n",
-	// 		__FUNCTION__, udev->pm_usage_cnt);
+	dev_vdbg(&udev->dev, "%s: cnt %d\n",
+			__FUNCTION__, udev->pm_usage_cnt);
 }
 
 /**
···
 	int	status;
 
 	status = usb_autopm_do_device(udev, 1);
-	// dev_dbg(&udev->dev, "%s: status %d cnt %d\n",
-	//		__FUNCTION__, status, udev->pm_usage_cnt);
+	dev_vdbg(&udev->dev, "%s: status %d cnt %d\n",
+			__FUNCTION__, status, udev->pm_usage_cnt);
 	return status;
 }
 
···
 	int	status;
 
 	status = usb_autopm_do_interface(intf, -1);
-	// dev_dbg(&intf->dev, "%s: status %d cnt %d\n",
-	//		__FUNCTION__, status, intf->pm_usage_cnt);
+	dev_vdbg(&intf->dev, "%s: status %d cnt %d\n",
+			__FUNCTION__, status, intf->pm_usage_cnt);
 }
 EXPORT_SYMBOL_GPL(usb_autopm_put_interface);
 
···
 	int	status;
 
 	status = usb_autopm_do_interface(intf, 1);
-	// dev_dbg(&intf->dev, "%s: status %d cnt %d\n",
-	//		__FUNCTION__, status, intf->pm_usage_cnt);
+	dev_vdbg(&intf->dev, "%s: status %d cnt %d\n",
+			__FUNCTION__, status, intf->pm_usage_cnt);
 	return status;
 }
 EXPORT_SYMBOL_GPL(usb_autopm_get_interface);
···
 	int	status;
 
 	status = usb_autopm_do_interface(intf, 0);
-	// dev_dbg(&intf->dev, "%s: status %d cnt %d\n",
-	//		__FUNCTION__, status, intf->pm_usage_cnt);
+	dev_vdbg(&intf->dev, "%s: status %d cnt %d\n",
+			__FUNCTION__, status, intf->pm_usage_cnt);
 	return status;
 }
 EXPORT_SYMBOL_GPL(usb_autopm_set_interface);