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[3/7] xhci: Init a transfers xhci, slotid and epid member on epctx alloc

Message ID 1379583298-7524-4-git-send-email-kraxel@redhat.com
State New
Headers show

Commit Message

Gerd Hoffmann Sept. 19, 2013, 9:34 a.m. UTC 
From: Hans de Goede <hdegoede@redhat.com>

Transfers are part of an epctx, which is part of a slot, which is part of
a xhci. Transfers cannot dynamically be moved from one epctx to another,
so once created their xhci, slotid and epid are constant, so lets set these
up at creation time, rather then re-initializing them with the same
value each time a transfer gets submitted.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 hw/usb/hcd-xhci.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
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Patch

diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c
index 69d9144..7c0c0c4 100644
--- a/hw/usb/hcd-xhci.c
+++ b/hw/usb/hcd-xhci.c
@@ -1245,6 +1245,9 @@  static XHCIEPContext *xhci_alloc_epctx(XHCIState *xhci,
     epctx->epid = epid;
 
     for (i = 0; i < ARRAY_SIZE(epctx->transfers); i++) {
+        epctx->transfers[i].xhci = xhci;
+        epctx->transfers[i].slotid = slotid;
+        epctx->transfers[i].epid = epid;
         usb_packet_init(&epctx->transfers[i].packet);
     }
     epctx->kick_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, xhci_ep_kick_timer, epctx);
@@ -2060,9 +2063,6 @@  static void xhci_kick_ep(XHCIState *xhci, unsigned int slotid,
         for (i = 0; i < length; i++) {
             assert(xhci_ring_fetch(xhci, ring, &xfer->trbs[i], NULL));
         }
-        xfer->xhci = xhci;
-        xfer->epid = epid;
-        xfer->slotid = slotid;
         xfer->streamid = streamid;
 
         if (epid == 1) {