On Wed, 13 Mar 2013, Adrian Bassett wrote:
> > Any issues in the last couple of days? If not, I'd like to go ahead
> > and submit this for inclusion in the next round of stable kernels.
>
> No, all's been well. Besides a vanilla 3.8.2 with just your latest
> patch I have also been using a kernel with that combination plus a
> fair number of additional patches - your USB revert, network, and
> graphics, mainly - picked from the forthcoming 3.8.3 release. They
> all seem to play well together so it would be good to have the patch
> in stable.
I've got a minor update to this patch. Could you please test it? This
is the version I want to submit.
Alan Stern
Index: 3.8/drivers/usb/host/ehci-hcd.c
===================================================================
--- 3.8.orig/drivers/usb/host/ehci-hcd.c
+++ 3.8/drivers/usb/host/ehci-hcd.c
@@ -302,6 +302,7 @@ static void ehci_quiesce (struct ehci_hc
static void end_unlink_async(struct ehci_hcd *ehci);
static void unlink_empty_async(struct ehci_hcd *ehci);
+static void unlink_empty_async_suspended(struct ehci_hcd *ehci);
static void ehci_work(struct ehci_hcd *ehci);
static void start_unlink_intr(struct ehci_hcd *ehci, struct ehci_qh *qh);
static void end_unlink_intr(struct ehci_hcd *ehci, struct ehci_qh *qh);
Index: 3.8/drivers/usb/host/ehci-hub.c
===================================================================
--- 3.8.orig/drivers/usb/host/ehci-hub.c
+++ 3.8/drivers/usb/host/ehci-hub.c
@@ -328,7 +328,7 @@ static int ehci_bus_suspend (struct usb_
ehci->rh_state = EHCI_RH_SUSPENDED;
end_unlink_async(ehci);
- unlink_empty_async(ehci);
+ unlink_empty_async_suspended(ehci);
ehci_handle_intr_unlinks(ehci);
end_free_itds(ehci);
Index: 3.8/drivers/usb/host/ehci-q.c
===================================================================
--- 3.8.orig/drivers/usb/host/ehci-q.c
+++ 3.8/drivers/usb/host/ehci-q.c
@@ -1316,6 +1316,19 @@ static void unlink_empty_async(struct eh
}
}
+/* The root hub is suspended; unlink all the async QHs */
+static void unlink_empty_async_suspended(struct ehci_hcd *ehci)
+{
+ struct ehci_qh *qh;
+
+ while (ehci->async->qh_next.qh) {
+ qh = ehci->async->qh_next.qh;
+ WARN_ON(!list_empty(&qh->qtd_list));
+ single_unlink_async(ehci, qh);
+ }
+ start_iaa_cycle(ehci, false);
+}
+
/* makes sure the async qh will become idle */
/* caller must own ehci->lock */
--
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