diff options
Diffstat (limited to 'drivers/usb/host')
| -rw-r--r-- | drivers/usb/host/xhci-hub.c | 2 | ||||
| -rw-r--r-- | drivers/usb/host/xhci-ring.c | 19 |
2 files changed, 20 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 2f74eddbe3c1..431efe72b1f7 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -811,7 +811,7 @@ int xhci_hub_status_data(struct usb_hcd *hcd, char *buf) memset(buf, 0, retval); status = 0; - mask = PORT_CSC | PORT_PEC | PORT_OCC | PORT_PLC; + mask = PORT_CSC | PORT_PEC | PORT_OCC | PORT_PLC | PORT_WRC; spin_lock_irqsave(&xhci->lock, flags); /* For each port, did anything change? If so, set that bit in buf. */ diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index e4b7f003d702..940321b3ec68 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -1936,8 +1936,10 @@ static int handle_tx_event(struct xhci_hcd *xhci, int status = -EINPROGRESS; struct urb_priv *urb_priv; struct xhci_ep_ctx *ep_ctx; + struct list_head *tmp; u32 trb_comp_code; int ret = 0; + int td_num = 0; slot_id = TRB_TO_SLOT_ID(le32_to_cpu(event->flags)); xdev = xhci->devs[slot_id]; @@ -1959,6 +1961,12 @@ static int handle_tx_event(struct xhci_hcd *xhci, return -ENODEV; } + /* Count current td numbers if ep->skip is set */ + if (ep->skip) { + list_for_each(tmp, &ep_ring->td_list) + td_num++; + } + event_dma = le64_to_cpu(event->buffer); trb_comp_code = GET_COMP_CODE(le32_to_cpu(event->transfer_len)); /* Look for common error cases */ @@ -2070,7 +2078,18 @@ static int handle_tx_event(struct xhci_hcd *xhci, goto cleanup; } + /* We've skipped all the TDs on the ep ring when ep->skip set */ + if (ep->skip && td_num == 0) { + ep->skip = false; + xhci_dbg(xhci, "All tds on the ep_ring skipped. " + "Clear skip flag.\n"); + ret = 0; + goto cleanup; + } + td = list_entry(ep_ring->td_list.next, struct xhci_td, td_list); + if (ep->skip) + td_num--; /* Is this a TRB in the currently executing TD? */ event_seg = trb_in_td(ep_ring->deq_seg, ep_ring->dequeue, |