From 923473ed495a09cd13f6b614139ce74ce2bae18f Mon Sep 17 00:00:00 2001
From: Jiaxin Wu <jiaxin.wu@intel.com>
Date: Wed, 8 Jun 2016 10:41:39 +0800
Subject: [PATCH] MdeModulePkg: Fix IPv4 UseDefaultAddress failure case.

This patch is used to update IP4->Configure() to allow the upper layer
modules to obtain a default address by setting UseDefaultAddress to TRUE
when default address is not available yet.

Cc: Ye Ting <ting.ye@intel.com>
Cc: El-Haj-Mahmoud Samer <samer.el-haj-mahmoud@hpe.com>
Cc: Subramanian Sriram <sriram-s@hpe.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jiaxin Wu <jiaxin.wu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: Sriram Subramanian <sriram-s@hpe.com>
Tested-by: Sriram Subramanian <sriram-s@hpe.com>
---
 MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.c b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.c
index e733816556..91f1a67370 100644
--- a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.c
+++ b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.c
@@ -676,8 +676,11 @@ Ip4ConfigProtocol (
     // Use the default address. Check the state.
     //
     if (IpSb->State == IP4_SERVICE_UNSTARTED) {
-      Status = EFI_NO_MAPPING;
-      goto ON_ERROR;
+      Status = Ip4StartAutoConfig (&IpSb->Ip4Config2Instance);
+
+      if (EFI_ERROR (Status)) {
+        goto ON_ERROR;
+      }
     }
 
     IpIf = IpSb->DefaultInterface;
-- 
2.39.2