MdeModulePkg: Fix bug in TCP which not sending out ACK in certain circumstance.

[mirror_edk2.git] / MdeModulePkg / Universal / Network / Tcp4Dxe / Tcp4Input.c

diff --git a/MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Input.c b/MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Input.c
index 11936ad7f14e880c4f12e01f0ae95e9774e10bc8..b7f329be7a64d7ff8cd157141693dcab65b86724 100644 (file)
--- a/MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Input.c
+++ b/MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Input.c
@@ -32,7 +32,7 @@ TcpSeqAcceptable (
   IN TCP_SEG *Seg\r
   )\r
 {\r
-  return (TCP_SEQ_LEQ (Tcb->RcvWl2, Seg->End) &&\r
+  return (TCP_SEQ_LEQ (Tcb->RcvNxt, Seg->End) &&\r
           TCP_SEQ_LT (Seg->Seq, Tcb->RcvWl2 + Tcb->RcvWnd));\r
 }\r
 \r