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Date: Tue, 17 Jun 2014 09:17:51 -0700 From: Kamal Mostafa <kamal@...onical.com> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org, kernel-team@...ts.ubuntu.com Cc: Hans de Goede <hdegoede@...hat.com>, Sarah Sharp <sarah.a.sharp@...ux.intel.com>, Kamal Mostafa <kamal@...onical.com> Subject: [PATCH 3.8 093/121] xhci: For streams the css flag most be read from the stream-ctx on ep stop 3.8.13.24 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Hans de Goede <hdegoede@...hat.com> commit c4bedb77ec4cb42f37cae4cbfddda8283161f7c8 upstream. Signed-off-by: Hans de Goede <hdegoede@...hat.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@...ux.intel.com> Signed-off-by: Kamal Mostafa <kamal@...onical.com> --- drivers/usb/host/xhci-ring.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 3607da9..c311338 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -551,9 +551,9 @@ void xhci_find_new_dequeue_state(struct xhci_hcd *xhci, struct xhci_dequeue_state *state) { struct xhci_virt_device *dev = xhci->devs[slot_id]; + struct xhci_virt_ep *ep = &dev->eps[ep_index]; struct xhci_ring *ep_ring; struct xhci_generic_trb *trb; - struct xhci_ep_ctx *ep_ctx; dma_addr_t addr; ep_ring = xhci_triad_to_transfer_ring(xhci, slot_id, @@ -576,8 +576,16 @@ void xhci_find_new_dequeue_state(struct xhci_hcd *xhci, /* Dig out the cycle state saved by the xHC during the stop ep cmd */ xhci_dbg(xhci, "Finding endpoint context\n"); - ep_ctx = xhci_get_ep_ctx(xhci, dev->out_ctx, ep_index); - state->new_cycle_state = 0x1 & le64_to_cpu(ep_ctx->deq); + /* 4.6.9 the css flag is written to the stream context for streams */ + if (ep->ep_state & EP_HAS_STREAMS) { + struct xhci_stream_ctx *ctx = + &ep->stream_info->stream_ctx_array[stream_id]; + state->new_cycle_state = 0x1 & le64_to_cpu(ctx->stream_ring); + } else { + struct xhci_ep_ctx *ep_ctx + = xhci_get_ep_ctx(xhci, dev->out_ctx, ep_index); + state->new_cycle_state = 0x1 & le64_to_cpu(ep_ctx->deq); + } state->new_deq_ptr = cur_td->last_trb; xhci_dbg(xhci, "Finding segment containing last TRB in TD.\n"); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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