Add #ifndef statement for header file.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5296 6f19259b-4bc3-4df7-8a09-765794883524

diff --git a/MdeModulePkg/Bus/Pci/UndiRuntimeDxe/E100b.h b/MdeModulePkg/Bus/Pci/UndiRuntimeDxe/E100b.h
index 957e92b604929197b3070f35b665fa05c28da3f6..60acdb824c9166effa7acb91072fd81275842314 100644 (file)
--- a/MdeModulePkg/Bus/Pci/UndiRuntimeDxe/E100b.h
+++ b/MdeModulePkg/Bus/Pci/UndiRuntimeDxe/E100b.h
@@ -12,6 +12,9 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 \r
 **/\r
 \r
+#ifndef _E100B_H_\r
+#define _E100B_H_\r
+\r
 // pci config offsets:\r
 \r
 #define RX_BUFFER_COUNT 32\r
@@ -663,3 +666,6 @@ struct MC_CB_STRUCT{
 #pragma pack()\r
 \r
 #define FOUR_GIGABYTE (UINT64)0x100000000ULL\r
+\r
+#endif\r
+\r