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 4.9-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-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From da99706689481717998d1d48edd389f339eea979 Mon Sep 17 00:00:00 2001
From: Daniel Thompson <daniel.thompson@xxxxxxxxxx>
Date: Thu, 21 Dec 2017 15:06:15 +0200
Subject: usb: xhci: Add XHCI_TRUST_TX_LENGTH for Renesas uPD720201
From: Daniel Thompson <daniel.thompson@xxxxxxxxxx>
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).
Signed-off-by: Daniel Thompson <daniel.thompson@xxxxxxxxxx>
Acked-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
Signed-off-by: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/host/xhci-pci.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -190,6 +190,9 @@ 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 daniel.thompson@xxxxxxxxxx are
queue-4.9/usb-xhci-add-xhci_trust_tx_length-for-renesas-upd720201.patch