qemu/0145-usb-redir-Get-rid-of-local-shadow-copy-of-packet-hea.patch

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2012-10-28 18:05:07 +00:00
From 40d22426e0e12f26c7bfa5848cf0a9857d52dc99 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Tue, 28 Aug 2012 09:05:38 +0200
2012-10-28 18:05:07 +00:00
Subject: [PATCH] usb-redir: Get rid of local shadow copy of packet headers
The shadow copy only serves as an extra check (besides the packet-id) to
ensure the packet we get back is a reply to the packet we think it is.
This check has never triggered in all the time usb-redir is in use now,
and since the verified data in the returned packet-header is not used
otherwise, removing the check does not open any possibilities for the
usbredirhost to confuse us.
This is a preparation patch for completely getting rid of the async-packet
struct in usb-redir, instead relying on the (new) per ep queues in the
qemu usb core.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-10-28 18:05:07 +00:00
(cherry picked from commit 104981d52b63dc3d68f39d4442881c667f44bbb9)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
---
hw/usb/redirect.c | 27 ---------------------------
1 file changed, 27 deletions(-)
diff --git a/hw/usb/redirect.c b/hw/usb/redirect.c
2012-10-28 18:05:07 +00:00
index 2cae8c5..e4ef372 100644
--- a/hw/usb/redirect.c
+++ b/hw/usb/redirect.c
@@ -99,11 +99,6 @@ struct AsyncURB {
USBRedirDevice *dev;
USBPacket *packet;
uint32_t packet_id;
- union {
- struct usb_redir_control_packet_header control_packet;
- struct usb_redir_bulk_packet_header bulk_packet;
- struct usb_redir_interrupt_packet_header interrupt_packet;
- };
QTAILQ_ENTRY(AsyncURB)next;
};
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@@ -500,7 +495,6 @@ static int usbredir_handle_bulk_data(USBRedirDevice *dev, USBPacket *p,
bulk_packet.endpoint = ep;
bulk_packet.length = p->iov.size;
bulk_packet.stream_id = 0;
- aurb->bulk_packet = bulk_packet;
if (ep & USB_DIR_IN) {
usbredirparser_send_bulk_packet(dev->parser, aurb->packet_id,
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@@ -581,7 +575,6 @@ static int usbredir_handle_interrupt_data(USBRedirDevice *dev,
interrupt_packet.endpoint = ep;
interrupt_packet.length = p->iov.size;
- aurb->interrupt_packet = interrupt_packet;
usb_packet_copy(p, buf, p->iov.size);
usbredir_log_data(dev, "interrupt data out:", buf, p->iov.size);
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@@ -762,7 +755,6 @@ static int usbredir_handle_control(USBDevice *udev, USBPacket *p,
control_packet.value = value;
control_packet.index = index;
control_packet.length = length;
- aurb->control_packet = control_packet;
if (control_packet.requesttype & USB_DIR_IN) {
usbredirparser_send_control_packet(dev->parser, aurb->packet_id,
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@@ -1326,14 +1318,6 @@ static void usbredir_control_packet(void *priv, uint32_t id,
return;
}
- aurb->control_packet.status = control_packet->status;
- aurb->control_packet.length = control_packet->length;
- if (memcmp(&aurb->control_packet, control_packet,
- sizeof(*control_packet))) {
- ERROR("return control packet mismatch, please report this!\n");
- len = USB_RET_NAK;
- }
-
if (aurb->packet) {
len = usbredir_handle_status(dev, control_packet->status, len);
if (len > 0) {
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@@ -1371,12 +1355,6 @@ static void usbredir_bulk_packet(void *priv, uint32_t id,
return;
}
- if (aurb->bulk_packet.endpoint != bulk_packet->endpoint ||
- aurb->bulk_packet.stream_id != bulk_packet->stream_id) {
- ERROR("return bulk packet mismatch, please report this!\n");
- len = USB_RET_NAK;
- }
-
if (aurb->packet) {
len = usbredir_handle_status(dev, bulk_packet->status, len);
if (len > 0) {
2012-10-28 18:05:07 +00:00
@@ -1455,11 +1433,6 @@ static void usbredir_interrupt_packet(void *priv, uint32_t id,
return;
}
- if (aurb->interrupt_packet.endpoint != interrupt_packet->endpoint) {
- ERROR("return int packet mismatch, please report this!\n");
- len = USB_RET_NAK;
- }
-
if (aurb->packet) {
aurb->packet->result = usbredir_handle_status(dev,
interrupt_packet->status, len);