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

    xhci: Treat not finding the event_seg on COMP_STOP the same as 
COMP_STOP_INVAL

to the 3.10-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:
     
xhci-treat-not-finding-the-event_seg-on-comp_stop-the-same-as-comp_stop_inval.patch
and it can be found in the queue-3.10 subdirectory.

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


>From 9a54886342e227433aebc9d374f8ae268a836475 Mon Sep 17 00:00:00 2001
From: Hans de Goede <[email protected]>
Date: Tue, 19 Aug 2014 15:17:56 +0300
Subject: xhci: Treat not finding the event_seg on COMP_STOP the same as 
COMP_STOP_INVAL

From: Hans de Goede <[email protected]>

commit 9a54886342e227433aebc9d374f8ae268a836475 upstream.

When using a Renesas uPD720231 chipset usb-3 uas to sata bridge with a 120G
Crucial M500 ssd, model string: Crucial_ CT120M500SSD1, together with a
the integrated Intel xhci controller on a Haswell laptop:

00:14.0 USB controller [0c03]: Intel Corporation 8 Series USB xHCI HC 
[8086:9c31] (rev 04)

The following error gets logged to dmesg:

xhci error: Transfer event TRB DMA ptr not part of current TD

Treating COMP_STOP the same as COMP_STOP_INVAL when no event_seg gets found
fixes this.

Signed-off-by: Hans de Goede <[email protected]>
Signed-off-by: Mathias Nyman <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 drivers/usb/host/xhci-ring.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -2532,7 +2532,8 @@ static int handle_tx_event(struct xhci_h
                 * last TRB of the previous TD. The command completion handle
                 * will take care the rest.
                 */
-               if (!event_seg && trb_comp_code == COMP_STOP_INVAL) {
+               if (!event_seg && (trb_comp_code == COMP_STOP ||
+                                  trb_comp_code == COMP_STOP_INVAL)) {
                        ret = 0;
                        goto cleanup;
                }


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

queue-3.10/xhci-treat-not-finding-the-event_seg-on-comp_stop-the-same-as-comp_stop_inval.patch
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