usb: xhci: xhci_bulk_tx: Don't "BUG" when comparing addresses

Octeon uses mapped addresses for virtual and physical memory. It's not
that easy to calculate the resulting addresses here. So let's remove
this BUG_ON() completely, as it's not really helpful.

Please also note, that BUG_ON() is not recommended any more in the Linux
kernel.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Marek Vasut <marex@denx.de>

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index b118207..13065d7 100644 (file)
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -722,8 +722,6 @@ int xhci_bulk_tx(struct usb_device *udev, unsigned long pipe,
 
        BUG_ON(TRB_TO_SLOT_ID(field) != slot_id);
        BUG_ON(TRB_TO_EP_INDEX(field) != ep_index);
-       BUG_ON(*(void **)(uintptr_t)le64_to_cpu(event->trans_event.buffer) -
-               buffer > (size_t)length);
 
        record_transfer_result(udev, event, length);
        xhci_acknowledge_event(ctrl);