4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Yasushi Asano <yasano@xxxxxxxxxxxxxx> 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@xxxxxxxxxxxxxx> Signed-off-by: Spyridon Papageorgiou <spapageorgiou@xxxxxxxxxxxxxx> Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx> Cc: stable <stable@xxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- 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); }
