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From: Gerd Hoffmann <kraxel@redhat.com>
To: qemu-devel@nongnu.org
Cc: 1653384@bugs.launchpad.net, fabian@lesniak-it.de,
	Gerd Hoffmann <kraxel@redhat.com>
Subject: [Qemu-devel] [PATCH 2/4] xhci: rename xhci_complete_packet to xhci_try_complete_packet
Date: Mon, 30 Jan 2017 16:36:45 +0100	[thread overview]
Message-ID: <1485790607-31399-3-git-send-email-kraxel@redhat.com> (raw)
In-Reply-To: <1485790607-31399-1-git-send-email-kraxel@redhat.com>

Make clear that this isn't guaranteed to actually complete the transfer,
the usb packet can still be in flight after calling that function.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 hw/usb/hcd-xhci.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c
index dd429dc..4e2807e 100644
--- a/hw/usb/hcd-xhci.c
+++ b/hw/usb/hcd-xhci.c
@@ -1897,7 +1897,7 @@ static int xhci_setup_packet(XHCITransfer *xfer)
     return 0;
 }
 
-static int xhci_complete_packet(XHCITransfer *xfer)
+static int xhci_try_complete_packet(XHCITransfer *xfer)
 {
     if (xfer->packet.status == USB_RET_ASYNC) {
         trace_usb_xhci_xfer_async(xfer);
@@ -2002,7 +2002,7 @@ static int xhci_fire_ctl_transfer(XHCIState *xhci, XHCITransfer *xfer)
 
     usb_handle_packet(xfer->packet.ep->dev, &xfer->packet);
 
-    xhci_complete_packet(xfer);
+    xhci_try_complete_packet(xfer);
     if (!xfer->running_async && !xfer->running_retry) {
         xhci_kick_epctx(xfer->epctx, 0);
     }
@@ -2106,7 +2106,7 @@ static int xhci_submit(XHCIState *xhci, XHCITransfer *xfer, XHCIEPContext *epctx
     }
     usb_handle_packet(xfer->packet.ep->dev, &xfer->packet);
 
-    xhci_complete_packet(xfer);
+    xhci_try_complete_packet(xfer);
     if (!xfer->running_async && !xfer->running_retry) {
         xhci_kick_epctx(xfer->epctx, xfer->streamid);
     }
@@ -2185,7 +2185,7 @@ static void xhci_kick_epctx(XHCIEPContext *epctx, unsigned int streamid)
             }
             usb_handle_packet(xfer->packet.ep->dev, &xfer->packet);
             assert(xfer->packet.status != USB_RET_NAK);
-            xhci_complete_packet(xfer);
+            xhci_try_complete_packet(xfer);
         } else {
             /* retry nak'ed transfer */
             if (xhci_setup_packet(xfer) < 0) {
@@ -2195,7 +2195,7 @@ static void xhci_kick_epctx(XHCIEPContext *epctx, unsigned int streamid)
             if (xfer->packet.status == USB_RET_NAK) {
                 return;
             }
-            xhci_complete_packet(xfer);
+            xhci_try_complete_packet(xfer);
         }
         assert(!xfer->running_retry);
         if (xfer->complete) {
@@ -3492,7 +3492,7 @@ static void xhci_complete(USBPort *port, USBPacket *packet)
         xhci_ep_nuke_one_xfer(xfer, 0);
         return;
     }
-    xhci_complete_packet(xfer);
+    xhci_try_complete_packet(xfer);
     xhci_kick_epctx(xfer->epctx, xfer->streamid);
     if (xfer->complete) {
         xhci_ep_free_xfer(xfer);
-- 
1.8.3.1

  parent reply	other threads:[~2017-01-30 15:36 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-30 15:36 [Qemu-devel] [PATCH 0/4] xhci: fix misc regressions Gerd Hoffmann
2017-01-30 15:36 ` [Qemu-devel] [PATCH 1/4] xhci: only free completed transfers Gerd Hoffmann
2017-01-30 15:36 ` Gerd Hoffmann [this message]
2017-01-30 15:36 ` [Qemu-devel] [PATCH 3/4] xhci: don't kick in xhci_submit and xhci_fire_ctl_transfer Gerd Hoffmann
2017-01-30 15:36 ` [Qemu-devel] [PATCH 4/4] xhci: guard xhci_kick_epctx against recursive calls Gerd Hoffmann

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