This is a note to let you know that I've just added the patch titled
xhci: Add check for invalid byte size error when UAS devices are
to my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-linus branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.
If you have any questions about this process, please let me know.
>From d9193efba84fe4c4aa22a569fade5e6ca971f8af Mon Sep 17 00:00:00 2001
From: Sandeep Singh <sandeep.singh@xxxxxxx>
Date: Fri, 9 Nov 2018 17:21:19 +0200
Subject: xhci: Add check for invalid byte size error when UAS devices are
connected.
Observed "TRB completion code (27)" error which corresponds to Stopped -
Length Invalid error(xhci spec section 4.17.4) while connecting USB to
SATA bridge.
Looks like this case was not considered when the following patch[1] was
committed. Hence adding this new check which can prevent
the invalid byte size error.
[1] ade2e3a xhci: handle transfer events without TRB pointer
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Sandeep Singh <sandeep.singh@xxxxxxx>
cc: Nehal Shah <Nehal-bakulchandra.Shah@xxxxxxx>
cc: Shyam Sundar S K <Shyam-sundar.S-k@xxxxxxx>
Signed-off-by: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/host/xhci-ring.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 80d464ea5a9a..730a6ecd85fc 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -2273,6 +2273,7 @@ static int handle_tx_event(struct xhci_hcd *xhci,
goto cleanup;
case COMP_RING_UNDERRUN:
case COMP_RING_OVERRUN:
+ case COMP_STOPPED_LENGTH_INVALID:
goto cleanup;
default:
xhci_err(xhci, "ERROR Transfer event for unknown stream ring slot %u ep %u\n",
--
2.19.1
