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[PATCH 3/4] usbnet: Detect short packets as sent by the xHCI controller
From: |
Michael Brown |
Subject: |
[PATCH 3/4] usbnet: Detect short packets as sent by the xHCI controller |
Date: |
Tue, 6 Sep 2022 19:30:52 +0100 |
The xHCI controller will ignore the endpoint MTU and so may deliver
packets of any length. Detect short packets as being any packet that
has a length of zero or a length that is not a multiple of the MTU.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
---
hw/usb/dev-network.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/usb/dev-network.c b/hw/usb/dev-network.c
index 155df935cd..9d83974ec9 100644
--- a/hw/usb/dev-network.c
+++ b/hw/usb/dev-network.c
@@ -1211,7 +1211,7 @@ static void usb_net_handle_dataout(USBNetState *s,
USBPacket *p)
s->out_ptr += sz;
if (!is_rndis(s)) {
- if (p->iov.size < 64) {
+ if (p->iov.size % 64 || p->iov.size == 0) {
qemu_send_packet(qemu_get_queue(s->nic), s->out_buf, s->out_ptr);
s->out_ptr = 0;
}
--
2.35.1