Merge branch 'for-usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci into usb-linus

* 'for-usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci:
  Revert "xHCI: reset-on-resume quirk for NEC uPD720200"
  xHCI: fix bug in xhci_clear_command_ring()

2 files changed, 5 insertions, 7 deletions

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index d2a7332daca4..ef98b38626fb 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -33,8 +33,6 @@
 #define PCI_VENDOR_ID_ETRON             0x1b6f
 #define PCI_DEVICE_ID_ASROCK_P67        0x7023
 
-#define PCI_DEVICE_ID_NEC_uPD720200     0x0194
-
 static const char hcd_name[] = "xhci_hcd";
 
 /* called after powerup, by probe or system-pm "wakeup" */
@@ -76,11 +74,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
                                 pdev->revision);
         }
 
-        if (pdev->vendor == PCI_VENDOR_ID_NEC) {
+        if (pdev->vendor == PCI_VENDOR_ID_NEC)
                 xhci->quirks |= XHCI_NEC_HOST;
-                if (pdev->device == PCI_DEVICE_ID_NEC_uPD720200)
-                        xhci->quirks |= XHCI_RESET_ON_RESUME;
-        }
 
         if (pdev->vendor == PCI_VENDOR_ID_AMD && xhci->hci_version == 0x96)
                 xhci->quirks |= XHCI_AMD_0x96_HOST;
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index aa94c0195791..a1afb7c39f7e 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -711,7 +711,10 @@ static void xhci_clear_command_ring(struct xhci_hcd *xhci)
         ring = xhci->cmd_ring;
         seg = ring->deq_seg;
         do {
-                memset(seg->trbs, 0, SEGMENT_SIZE);
+                memset(seg->trbs, 0,
+                        sizeof(union xhci_trb) * (TRBS_PER_SEGMENT - 1));
+                seg->trbs[TRBS_PER_SEGMENT - 1].link.control &=
+                        cpu_to_le32(~TRB_CYCLE);
                 seg = seg->next;
         } while (seg != ring->deq_seg);