Patch "xhci: Set URB actual length for stopped control transfers" has been added to the 4.10-stable tree
Subsystems (3)
This is a note to let you know that I've just added the patch titled
xhci: Set URB actual length for stopped control transfers
to the 4.10-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-set-urb-actual-length-for-stopped-control-transfers.patch
and it can be found in the queue-4.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.
Quoted 1 line
From
0ab2881a406b9fd46224a3e8253bbc0141b4f844Mon Sep 17 00:00:00 2001
From: Mathias Nyman <[email protected]>
Date: Tue, 28 Mar 2017 15:55:29 +0300
Subject: xhci: Set URB actual length for stopped control transfers
From: Mathias Nyman <[email protected]>
commit 0ab2881a406b9fd46224a3e8253bbc0141b4f844 upstream.
A control transfer that stopped at the status stage incorrectly warned about a "unexpected TRB Type 4", and did not set the transferred actual_length for the URB.
The URB actual_length for control transfers should contain the bytes transferred in the data stage.
Bytes of a partially sent setup stage and missing bytes from status stage should be left out.
--- drivers/usb/host/xhci-ring.c | 3 +++ 1 file changed, 3 insertions(+)
drivers/usb/host/xhci-ring.c +3 -0
@@ -2000,6 +2000,9 @@ static int process_ctrl_td(struct xhci_hcase TRB_NORMAL : td->urb->actual_length = requested - remaining; goto finish_td; +case TRB_STATUS : + td->urb->actual_length = requested; + goto finish_td;default :xhci_warn (xhci,"WARN: unexpected TRB Type %d\n" , trb_type);
Patches currently in stable-queue which might be from [email protected] are
queue-4.10/xhci-set-urb-actual-length-for-stopped-control-transfers.patch