usb: usbip: Remove unnecessary get_vdev()

vhci_tx_urb() should be able to get the vhci_device from
its caller vhci_urb_enqueue(), instead of brutal-force
searching it.
Reviewed-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Yuyang Du <yuyang.du@intel.com>
Acked-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/usbip/vhci_hcd.c

@@ -430,36 +430,8 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 	return retval;
 }
 
-static struct vhci_device *get_vdev(struct usb_device *udev)
+static void vhci_tx_urb(struct urb *urb, struct vhci_device *vdev)
 {
-	struct platform_device *pdev;
-	struct usb_hcd *hcd;
-	struct vhci_hcd *vhci;
-	int pdev_nr, rhport;
-
-	if (!udev)
-		return NULL;
-
-	for (pdev_nr = 0; pdev_nr < vhci_num_controllers; pdev_nr++) {
-		pdev = *(vhci_pdevs + pdev_nr);
-		if (pdev == NULL)
-			continue;
-		hcd = platform_get_drvdata(pdev);
-		if (hcd == NULL)
-			continue;
-		vhci = hcd_to_vhci(hcd);
-		for (rhport = 0; rhport < VHCI_HC_PORTS; rhport++) {
-			if (vhci->vdev[rhport].udev == udev)
-				return &vhci->vdev[rhport];
-		}
-	}
-
-	return NULL;
-}
-
-static void vhci_tx_urb(struct urb *urb)
-{
-	struct vhci_device *vdev = get_vdev(urb->dev);
 	struct vhci_priv *priv;
 	struct vhci_hcd *vhci;
 	unsigned long flags;
@@ -601,7 +573,7 @@ static int vhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
 	}
 
 out:
-	vhci_tx_urb(urb);
+	vhci_tx_urb(urb, vdev);
 	spin_unlock_irqrestore(&vhci->lock, flags);
 
 	return 0;