diff options
| -rw-r--r-- | drivers/usb/host/xhci-ring.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 36ccf0dac7fa..f1176c270c43 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -2263,13 +2263,12 @@ static int finish_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, return xhci_td_cleanup(xhci, td, ep_ring, td->status); } -/* sum trb lengths from ring dequeue up to stop_trb, _excluding_ stop_trb */ -static int sum_trb_lengths(struct xhci_hcd *xhci, struct xhci_ring *ring, - union xhci_trb *stop_trb) +/* sum trb lengths from the first trb up to stop_trb, _excluding_ stop_trb */ +static u32 sum_trb_lengths(struct xhci_td *td, union xhci_trb *stop_trb) { u32 sum; - union xhci_trb *trb = ring->dequeue; - struct xhci_segment *seg = ring->deq_seg; + union xhci_trb *trb = td->first_trb; + struct xhci_segment *seg = td->start_seg; for (sum = 0; trb != stop_trb; next_trb(&seg, &trb)) { if (!trb_is_noop(trb) && !trb_is_link(trb)) @@ -2460,7 +2459,7 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, goto finish_td; if (sum_trbs_for_length) - frame->actual_length = sum_trb_lengths(xhci, ep->ring, ep_trb) + + frame->actual_length = sum_trb_lengths(td, ep_trb) + ep_trb_len - remaining; else frame->actual_length = requested; @@ -2540,7 +2539,7 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, goto finish_td; case COMP_STOPPED_LENGTH_INVALID: /* stopped on ep trb with invalid length, exclude it */ - td->urb->actual_length = sum_trb_lengths(xhci, ep_ring, ep_trb); + td->urb->actual_length = sum_trb_lengths(td, ep_trb); goto finish_td; case COMP_USB_TRANSACTION_ERROR: if (xhci->quirks & XHCI_NO_SOFT_RETRY || @@ -2561,7 +2560,7 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, td->urb->actual_length = requested - remaining; else td->urb->actual_length = - sum_trb_lengths(xhci, ep_ring, ep_trb) + + sum_trb_lengths(td, ep_trb) + ep_trb_len - remaining; finish_td: if (remaining > requested) { |