Patch "usb: xhci: Add XHCI_TRUST_TX_LENGTH for Renesas uPD720201" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

usb: xhci: Add XHCI_TRUST_TX_LENGTH for Renesas uPD720201

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:

     usb-xhci-add-xhci_trust_tx_length-for-renesas-upd720201.patch

and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Daniel Thompson <[email protected]>
Date: Thu, 21 Dec 2017 15:06:15 +0200
Subject: usb: xhci: Add XHCI_TRUST_TX_LENGTH for Renesas uPD720201

From: Daniel Thompson <[email protected]>

commit da99706689481717998d1d48edd389f339eea979 upstream.

When plugging in a USB webcam I see the following message:
xhci_hcd 0000:04:00.0: WARN Successful completion on short TX: needs XHCI_TRUST_TX_LENGTH quirk?
handle_tx_event: 913 callbacks suppressed

All is quiet again with this patch (and I've done a fair but of soak testing with the camera since).

---
 drivers/usb/host/xhci-pci.c |    3 +++
 1 file changed, 3 insertions(+)

@@ -185,6 +185,9 @@ static void xhci_pci_quirks(struct devic
 		xhci->quirks |= XHCI_BROKEN_STREAMS;
 	}
 	if (pdev->vendor == PCI_VENDOR_ID_RENESAS &&
+			pdev->device == 0x0014)
+		xhci->quirks |= XHCI_TRUST_TX_LENGTH;
+	if (pdev->vendor == PCI_VENDOR_ID_RENESAS &&
 			pdev->device == 0x0015)
 		xhci->quirks |= XHCI_RESET_ON_RESUME;
 	if (pdev->vendor == PCI_VENDOR_ID_VIA)

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/usb-xhci-add-xhci_trust_tx_length-for-renesas-upd720201.patch