Merge branch 'core/urgent' into core/futexes

Merge reason: this branch was on an pre -rc1 base, merge it up to -rc6+
              to get the latest upstream fixes.

Conflicts:
	kernel/futex.c

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 21 insertions, 3 deletions

diff --git a/drivers/usb/host/whci/qset.c b/drivers/usb/host/whci/qset.c
index 7be74314ee1..640b38fbd05 100644
--- a/drivers/usb/host/whci/qset.c
+++ b/drivers/usb/host/whci/qset.c
@@ -89,11 +89,16 @@ static void qset_fill_qh(struct whc_qset *qset, struct urb *urb)
 		QH_INFO3_TX_RATE_53_3
 		| QH_INFO3_TX_PWR(0) /* 0 == max power */
 		);
+
+	qset->qh.cur_window = cpu_to_le32((1 << qset->max_burst) - 1);
 }
 
 /**
  * qset_clear - clear fields in a qset so it may be reinserted into a
- * schedule
+ * schedule.
+ *
+ * The sequence number and current window are not cleared (see
+ * qset_reset()).
  */
 void qset_clear(struct whc *whc, struct whc_qset *qset)
 {
@@ -101,9 +106,8 @@ void qset_clear(struct whc *whc, struct whc_qset *qset)
 	qset->remove = 0;
 
 	qset->qh.link = cpu_to_le32(QH_LINK_NTDS(8) | QH_LINK_T);
-	qset->qh.status = cpu_to_le16(QH_STATUS_ICUR(qset->td_start));
+	qset->qh.status = qset->qh.status & QH_STATUS_SEQ_MASK;
 	qset->qh.err_count = 0;
-	qset->qh.cur_window = cpu_to_le32((1 << qset->max_burst) - 1);
 	qset->qh.scratch[0] = 0;
 	qset->qh.scratch[1] = 0;
 	qset->qh.scratch[2] = 0;
@@ -114,6 +118,20 @@ void qset_clear(struct whc *whc, struct whc_qset *qset)
 }
 
 /**
+ * qset_reset - reset endpoint state in a qset.
+ *
+ * Clears the sequence number and current window.  This qset must not
+ * be in the ASL or PZL.
+ */
+void qset_reset(struct whc *whc, struct whc_qset *qset)
+{
+	wait_for_completion(&qset->remove_complete);
+
+	qset->qh.status &= ~QH_STATUS_SEQ_MASK;
+	qset->qh.cur_window = cpu_to_le32((1 << qset->max_burst) - 1);
+}
+
+/**
  * get_qset - get the qset for an async endpoint
  *
  * A new qset is created if one does not already exist.