[Qemu-devel] [PATCH v4 2/2] rtl8139: Do not consume the packet during overflow in standard mode.

[Vladislav Yasevich <vyasevic@redhat.com>]

When operation in standard mode, we currently return the size
of packet during buffer overflow.  This consumes the overflow
packet.  Return 0 instead so we can re-process the overflow packet
when we have room.

This fixes issues with lost/dropped fragments of large messages.

Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
---
 hw/net/rtl8139.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/net/rtl8139.c b/hw/net/rtl8139.c
index 8a33466..cb51613 100644
--- a/hw/net/rtl8139.c
+++ b/hw/net/rtl8139.c
@@ -1159,7 +1159,7 @@ static ssize_t rtl8139_do_receive(NetClientState *nc, const uint8_t *buf, size_t
             s->IntrStatus |= RxOverflow;
             ++s->RxMissed;
             rtl8139_update_irq(s);
-            return size_;
+            return 0;
         }
 
         packet_header |= RxStatusOK;
-- 
1.9.3