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List:       git-commits-head
Subject:    xHCI: fix queue_trb in isoc transfer
From:       Linux Kernel Mailing List <linux-kernel () vger ! kernel ! org>
Date:       2011-01-31 22:59:40
Message-ID: 201101312259.p0VMxexJ003853 () hera ! kernel ! org
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Gitweb:     http://git.kernel.org/linus/47cbf6925cd0ef8af4b8165b43a60b5f37c36d8a
Commit:     47cbf6925cd0ef8af4b8165b43a60b5f37c36d8a
Parent:     a6d940dd759bf240d28624198660ed34582a327b
Author:     Andiry Xu <andiry.xu@amd.com>
AuthorDate: Mon Dec 20 14:49:48 2010 +0800
Committer:  Sarah Sharp <sarah.a.sharp@linux.intel.com>
CommitDate: Fri Jan 14 15:51:53 2011 -0800

    xHCI: fix queue_trb in isoc transfer
    
    Fix the more_trbs_coming field of queue_trb() in isoc transfer.
    
    Signed-off-by: Andiry Xu <andiry.xu@amd.com>
    Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/host/xhci-ring.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 62c70c2..55dc156 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -2900,6 +2900,7 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
 	int running_total, trb_buff_len, td_len, td_remain_len, ret;
 	u64 start_addr, addr;
 	int i, j;
+	bool more_trbs_coming;
 
 	ep_ring = xhci->devs[slot_id]->eps[ep_index].ring;
 
@@ -2965,9 +2966,11 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
 			 */
 			if (j < trbs_per_td - 1) {
 				field |= TRB_CHAIN;
+				more_trbs_coming = true;
 			} else {
 				td->last_trb = ep_ring->enqueue;
 				field |= TRB_IOC;
+				more_trbs_coming = false;
 			}
 
 			/* Calculate TRB length */
@@ -2980,7 +2983,7 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
 			length_field = TRB_LEN(trb_buff_len) |
 				remainder |
 				TRB_INTR_TARGET(0);
-			queue_trb(xhci, ep_ring, false, false,
+			queue_trb(xhci, ep_ring, false, more_trbs_coming,
 				lower_32_bits(addr),
 				upper_32_bits(addr),
 				length_field,
--
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