From e68efa1ecf4552158451f9b097fbcc15ce927489 Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Mon, 24 Aug 2020 13:04:37 +0200
Subject: [PATCH] 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>
---
 drivers/usb/host/xhci-ring.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index b118207d93..13065d7ca9 100644
--- 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);
-- 
2.39.5