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 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
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-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From da99706689481717998d1d48edd389f339eea979 Mon Sep 17 00:00:00 2001
From: Daniel Thompson daniel.thompson@linaro.org 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@linaro.org
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@linaro.org Acked-by: Ard Biesheuvel ard.biesheuvel@linaro.org Signed-off-by: Mathias Nyman mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- 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@linaro.org are
queue-4.14/usb-xhci-add-xhci_trust_tx_length-for-renesas-upd720201.patch