Merge commit 'v2.6.30-rc3' into tracing/hw-branch-tracing

Conflicts:
	arch/x86/kernel/ptrace.c

Merge reason: fix the conflict above, and also pick up the CONFIG_BROKEN
              dependency change from upstream so that we can remove it
	      here.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

11 files changed, 74 insertions, 18 deletions

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index f2618d17710..c637207a1c8 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -622,7 +622,7 @@ static int ehci_run (struct usb_hcd *hcd)
 		ehci_writel(ehci, 0, &ehci->regs->segment);
 #if 0
 // this is deeply broken on almost all architectures
-		if (!dma_set_mask(hcd->self.controller, DMA_64BIT_MASK))
+		if (!dma_set_mask(hcd->self.controller, DMA_BIT_MASK(64)))
 			ehci_info(ehci, "enabled 64bit DMA\n");
 #endif
 	}
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index abb9a7706ec..5aa8bce90e1 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -108,7 +108,7 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
 		case 0x00d8:	/* CK8 */
 		case 0x00e8:	/* CK8S */
 			if (pci_set_consistent_dma_mask(pdev,
-						DMA_31BIT_MASK) < 0)
+						DMA_BIT_MASK(31)) < 0)
 				ehci_warn(ehci, "can't enable NVidia "
 					"workaround for >2GB RAM\n");
 			break;
diff --git a/drivers/usb/host/ehci-ps3.c b/drivers/usb/host/ehci-ps3.c
index 9c9da35abc6..1ba9f9a8c30 100644
--- a/drivers/usb/host/ehci-ps3.c
+++ b/drivers/usb/host/ehci-ps3.c
@@ -81,7 +81,7 @@ static int ps3_ehci_probe(struct ps3_system_bus_device *dev)
 	int result;
 	struct usb_hcd *hcd;
 	unsigned int virq;
-	static u64 dummy_mask = DMA_32BIT_MASK;
+	static u64 dummy_mask = DMA_BIT_MASK(32);
 
 	if (usb_disabled()) {
 		result = -ENODEV;
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 4ed228a8994..bb5e6f67157 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -280,7 +280,7 @@ static int ohci_hcd_at91_drv_probe(struct platform_device *pdev)
 		 * are always powered while this driver is active, and use
 		 * active-low power switches.
 		 */
-		for (i = 0; i < pdata->ports; i++) {
+		for (i = 0; i < ARRAY_SIZE(pdata->vbus_pin); i++) {
 			if (pdata->vbus_pin[i] <= 0)
 				continue;
 			gpio_request(pdata->vbus_pin[i], "ohci_vbus");
@@ -298,7 +298,7 @@ static int ohci_hcd_at91_drv_remove(struct platform_device *pdev)
 	int			i;
 
 	if (pdata) {
-		for (i = 0; i < pdata->ports; i++) {
+		for (i = 0; i < ARRAY_SIZE(pdata->vbus_pin); i++) {
 			if (pdata->vbus_pin[i] <= 0)
 				continue;
 			gpio_direction_output(pdata->vbus_pin[i], 1);
diff --git a/drivers/usb/host/ohci-ps3.c b/drivers/usb/host/ohci-ps3.c
index 3c1a3b5f89f..3d191031732 100644
--- a/drivers/usb/host/ohci-ps3.c
+++ b/drivers/usb/host/ohci-ps3.c
@@ -80,7 +80,7 @@ static int ps3_ohci_probe(struct ps3_system_bus_device *dev)
 	int result;
 	struct usb_hcd *hcd;
 	unsigned int virq;
-	static u64 dummy_mask = DMA_32BIT_MASK;
+	static u64 dummy_mask = DMA_BIT_MASK(32);
 
 	if (usb_disabled()) {
 		result = -ENODEV;
diff --git a/drivers/usb/host/whci/asl.c b/drivers/usb/host/whci/asl.c
index 958751ccea4..c2050785a81 100644
--- a/drivers/usb/host/whci/asl.c
+++ b/drivers/usb/host/whci/asl.c
@@ -122,7 +122,8 @@ static uint32_t process_qset(struct whc *whc, struct whc_qset *qset)
 		process_inactive_qtd(whc, qset, td);
 	}
 
-	update |= qset_add_qtds(whc, qset);
+	if (!qset->remove)
+		update |= qset_add_qtds(whc, qset);
 
 done:
 	/*
@@ -254,23 +255,29 @@ int asl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags)
 
 	spin_lock_irqsave(&whc->lock, flags);
 
+	err = usb_hcd_link_urb_to_ep(&whc->wusbhc.usb_hcd, urb);
+	if (err < 0) {
+		spin_unlock_irqrestore(&whc->lock, flags);
+		return err;
+	}
+
 	qset = get_qset(whc, urb, GFP_ATOMIC);
 	if (qset == NULL)
 		err = -ENOMEM;
 	else
 		err = qset_add_urb(whc, qset, urb, GFP_ATOMIC);
 	if (!err) {
-		usb_hcd_link_urb_to_ep(&whc->wusbhc.usb_hcd, urb);
 		if (!qset->in_sw_list)
 			asl_qset_insert_begin(whc, qset);
-	}
+	} else
+		usb_hcd_unlink_urb_from_ep(&whc->wusbhc.usb_hcd, urb);
 
 	spin_unlock_irqrestore(&whc->lock, flags);
 
 	if (!err)
 		queue_work(whc->workqueue, &whc->async_work);
 
-	return 0;
+	return err;
 }
 
 /**
diff --git a/drivers/usb/host/whci/hcd.c b/drivers/usb/host/whci/hcd.c
index 1569afd6245..e019a5058ab 100644
--- a/drivers/usb/host/whci/hcd.c
+++ b/drivers/usb/host/whci/hcd.c
@@ -186,6 +186,28 @@ static void whc_endpoint_disable(struct usb_hcd *usb_hcd,
 	}
 }
 
+static void whc_endpoint_reset(struct usb_hcd *usb_hcd,
+			       struct usb_host_endpoint *ep)
+{
+	struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd);
+	struct whc *whc = wusbhc_to_whc(wusbhc);
+	struct whc_qset *qset;
+
+	qset = ep->hcpriv;
+	if (qset) {
+		qset->remove = 1;
+
+		if (usb_endpoint_xfer_bulk(&ep->desc)
+		    || usb_endpoint_xfer_control(&ep->desc))
+			queue_work(whc->workqueue, &whc->async_work);
+		else
+			queue_work(whc->workqueue, &whc->periodic_work);
+
+		qset_reset(whc, qset);
+	}
+}
+
+
 static struct hc_driver whc_hc_driver = {
 	.description = "whci-hcd",
 	.product_desc = "Wireless host controller",
@@ -200,6 +222,7 @@ static struct hc_driver whc_hc_driver = {
 	.urb_enqueue = whc_urb_enqueue,
 	.urb_dequeue = whc_urb_dequeue,
 	.endpoint_disable = whc_endpoint_disable,
+	.endpoint_reset = whc_endpoint_reset,
 
 	.hub_status_data = wusbhc_rh_status_data,
 	.hub_control = wusbhc_rh_control,
diff --git a/drivers/usb/host/whci/pzl.c b/drivers/usb/host/whci/pzl.c
index df8b85f0709..ff4ef9e910d 100644
--- a/drivers/usb/host/whci/pzl.c
+++ b/drivers/usb/host/whci/pzl.c
@@ -128,7 +128,8 @@ static enum whc_update pzl_process_qset(struct whc *whc, struct whc_qset *qset)
 		process_inactive_qtd(whc, qset, td);
 	}
 
-	update |= qset_add_qtds(whc, qset);
+	if (!qset->remove)
+		update |= qset_add_qtds(whc, qset);
 
 done:
 	/*
@@ -282,23 +283,29 @@ int pzl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags)
 
 	spin_lock_irqsave(&whc->lock, flags);
 
+	err = usb_hcd_link_urb_to_ep(&whc->wusbhc.usb_hcd, urb);
+	if (err < 0) {
+		spin_unlock_irqrestore(&whc->lock, flags);
+		return err;
+	}
+
 	qset = get_qset(whc, urb, GFP_ATOMIC);
 	if (qset == NULL)
 		err = -ENOMEM;
 	else
 		err = qset_add_urb(whc, qset, urb, GFP_ATOMIC);
 	if (!err) {
-		usb_hcd_link_urb_to_ep(&whc->wusbhc.usb_hcd, urb);
 		if (!qset->in_sw_list)
 			qset_insert_in_sw_list(whc, qset);
-	}
+	} else
+		usb_hcd_unlink_urb_from_ep(&whc->wusbhc.usb_hcd, urb);
 
 	spin_unlock_irqrestore(&whc->lock, flags);
 
 	if (!err)
 		queue_work(whc->workqueue, &whc->periodic_work);
 
-	return 0;
+	return err;
 }
 
 /**
@@ -353,7 +360,6 @@ void pzl_qset_delete(struct whc *whc, struct whc_qset *qset)
 	qset_delete(whc, qset);
 }
 
-
 /**
  * pzl_init - initialize the periodic zone list
  * @whc: the WHCI host controller
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.
diff --git a/drivers/usb/host/whci/whcd.h b/drivers/usb/host/whci/whcd.h
index d3543a181dc..24e94d983c5 100644
--- a/drivers/usb/host/whci/whcd.h
+++ b/drivers/usb/host/whci/whcd.h
@@ -184,6 +184,7 @@ void qset_free(struct whc *whc, struct whc_qset *qset);
 struct whc_qset *get_qset(struct whc *whc, struct urb *urb, gfp_t mem_flags);
 void qset_delete(struct whc *whc, struct whc_qset *qset);
 void qset_clear(struct whc *whc, struct whc_qset *qset);
+void qset_reset(struct whc *whc, struct whc_qset *qset);
 int qset_add_urb(struct whc *whc, struct whc_qset *qset, struct urb *urb,
 		 gfp_t mem_flags);
 void qset_free_std(struct whc *whc, struct whc_std *std);
diff --git a/drivers/usb/host/whci/whci-hc.h b/drivers/usb/host/whci/whci-hc.h
index 51df7e313b3..794dba0d0f0 100644
--- a/drivers/usb/host/whci/whci-hc.h
+++ b/drivers/usb/host/whci/whci-hc.h
@@ -185,6 +185,7 @@ struct whc_qhead {
 #define QH_STATUS_FLOW_CTRL      (1 << 15)
 #define QH_STATUS_ICUR(i)        ((i) << 5)
 #define QH_STATUS_TO_ICUR(s)     (((s) >> 5) & 0x7)
+#define QH_STATUS_SEQ_MASK       0x1f
 
 /**
  * usb_pipe_to_qh_type - USB core pipe type to QH transfer type