| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.9 47/56] usb: host: xhci-rcar: Add XHCI_TRUST_TX_LENGTH quirk | Date | Mon, 1 Apr 2019 19:03:03 +0200 |
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4.9-stable review patch. If anyone has any objections, please let me know.
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From: Yasushi Asano <yasano@jp.adit-jv.com>
commit 40fc165304f0faaae78b761f8ee30b5d216b1850 upstream.
When plugging BUFFALO LUA4-U3-AGT USB3.0 to Gigabit Ethernet LAN Adapter, warning messages filled up dmesg.
[ 101.098287] xhci-hcd ee000000.usb: WARN Successful completion on short TX for slot 1 ep 4: needs XHCI_TRUST_TX_LENGTH quirk? [ 101.117463] xhci-hcd ee000000.usb: WARN Successful completion on short TX for slot 1 ep 4: needs XHCI_TRUST_TX_LENGTH quirk? [ 101.136513] xhci-hcd ee000000.usb: WARN Successful completion on short TX for slot 1 ep 4: needs XHCI_TRUST_TX_LENGTH quirk?
Adding the XHCI_TRUST_TX_LENGTH quirk resolves the issue.
Signed-off-by: Yasushi Asano <yasano@jp.adit-jv.com> Signed-off-by: Spyridon Papageorgiou <spapageorgiou@de.adit-jv.com> Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/usb/host/xhci-rcar.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/usb/host/xhci-rcar.c +++ b/drivers/usb/host/xhci-rcar.c @@ -192,5 +192,6 @@ int xhci_rcar_init_quirk(struct usb_hcd xhci_rcar_is_gen3(hcd->self.controller)) xhci->quirks |= XHCI_NO_64BIT_SUPPORT; + xhci->quirks |= XHCI_TRUST_TX_LENGTH; return xhci_rcar_download_firmware(hcd); }
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