This is a note to let you know that I've just added the patch titled
USB: EHCI: Fix resume signalling on remote wakeup
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:
usb-ehci-fix-resume-signalling-on-remote-wakeup.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 <stable@xxxxxxxxxxxxxxx> know about it.
>From 47a64a13d54f6c669b00542848d5550be3d3310e Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@xxxxxx>
Date: Tue, 9 Jul 2013 17:03:50 +0300
Subject: USB: EHCI: Fix resume signalling on remote wakeup
From: Roger Quadros <rogerq@xxxxxx>
commit 47a64a13d54f6c669b00542848d5550be3d3310e upstream.
Set the ehci->resuming flag for the port we receive a remote
wakeup on so that resume signalling can be completed.
Without this, the root hub timer will not fire again to check
if the resume was completed and there will be a never-ending wait on
on the port.
This effect is only observed if the HUB IRQ IN does not come after we
have initiated the port resume.
Signed-off-by: Roger Quadros <rogerq@xxxxxx>
Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/host/ehci-hub.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -858,6 +858,7 @@ static int ehci_hub_control (
ehci->reset_done[wIndex] = jiffies
+ msecs_to_jiffies(20);
usb_hcd_start_port_resume(&hcd->self, wIndex);
+ set_bit(wIndex, &ehci->resuming_ports);
/* check the port again */
mod_timer(&ehci_to_hcd(ehci)->rh_timer,
ehci->reset_done[wIndex]);
Patches currently in stable-queue which might be from rogerq@xxxxxx are
queue-3.10/usb-ehci-fix-resume-signalling-on-remote-wakeup.patch
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