MdePkg: Replace BSD License with BSD+Patent License

[mirror_edk2.git] / MdePkg / Library / SmmServicesTableLib / SmmServicesTableLib.c

diff --git a/MdePkg/Library/SmmServicesTableLib/SmmServicesTableLib.c b/MdePkg/Library/SmmServicesTableLib/SmmServicesTableLib.c
index 23a85a0c68e5e1f437f68fa5a1ac7d3c1c68dc2f..d95e9d473790684dd8ac77826a9e35103ff014eb 100644 (file)
--- a/MdePkg/Library/SmmServicesTableLib/SmmServicesTableLib.c
+++ b/MdePkg/Library/SmmServicesTableLib/SmmServicesTableLib.c
@@ -1,14 +1,8 @@
 /** @file\r
   SMM Services Table Library.\r
 \r
-  Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>\r
-  This program and the accompanying materials\r
-  are licensed and made available under the terms and conditions of the BSD License\r
-  which accompanies this distribution.  The full text of the license may be found at\r
-  http://opensource.org/licenses/bsd-license.php.\r
-\r
-  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
-  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+  Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>\r
+  SPDX-License-Identifier: BSD-2-Clause-Patent\r
 \r
 **/\r
 \r
@@ -18,7 +12,6 @@
 #include <Library/DebugLib.h>\r
 \r
 EFI_SMM_SYSTEM_TABLE2   *gSmst             = NULL;\r
-EFI_SMM_BASE2_PROTOCOL  *mInternalSmmBase2 = NULL;\r
 \r
 /**\r
   The constructor function caches the pointer of SMM Services Table.\r
@@ -36,49 +29,41 @@ SmmServicesTableLibConstructor (
   IN EFI_SYSTEM_TABLE  *SystemTable\r
   )\r
 {\r
-  EFI_STATUS  Status;\r
+  EFI_STATUS              Status;\r
+  EFI_SMM_BASE2_PROTOCOL  *InternalSmmBase2;\r
 \r
+  InternalSmmBase2 = NULL;\r
   //\r
   // Retrieve SMM Base2 Protocol,  Do not use gBS from UefiBootServicesTableLib on purpose\r
-  // to prevent inclusion of gBS, gST, and gImageHandle from SMM Drivers unless the \r
-  // SMM driver explicity declares that dependency. \r
+  // to prevent inclusion of gBS, gST, and gImageHandle from SMM Drivers unless the\r
+  // SMM driver explicity declares that dependency.\r
   //\r
   Status = SystemTable->BootServices->LocateProtocol (\r
                                         &gEfiSmmBase2ProtocolGuid,\r
                                         NULL,\r
-                                        (VOID **)&mInternalSmmBase2\r
+                                        (VOID **)&InternalSmmBase2\r
                                         );\r
   ASSERT_EFI_ERROR (Status);\r
-  ASSERT (mInternalSmmBase2 != NULL);\r
-\r
-  //\r
-  // Check to see if we are already in SMM\r
-  //\r
-  if (!InSmm ()) {\r
-    //\r
-    // We are not in SMM, so SMST is not needed\r
-    //\r
-    return EFI_SUCCESS;\r
-  }\r
+  ASSERT (InternalSmmBase2 != NULL);\r
 \r
   //\r
   // We are in SMM, retrieve the pointer to SMM System Table\r
   //\r
-  mInternalSmmBase2->GetSmstLocation (mInternalSmmBase2, &gSmst);\r
+  InternalSmmBase2->GetSmstLocation (InternalSmmBase2, &gSmst);\r
   ASSERT (gSmst != NULL);\r
 \r
   return EFI_SUCCESS;\r
 }\r
 \r
 /**\r
-  This function allows the caller to determine if the driver is executing in \r
+  This function allows the caller to determine if the driver is executing in\r
   System Management Mode(SMM).\r
 \r
-  This function returns TRUE if the driver is executing in SMM and FALSE if the \r
+  This function returns TRUE if the driver is executing in SMM and FALSE if the\r
   driver is not executing in SMM.\r
 \r
   @retval  TRUE  The driver is executing in System Management Mode (SMM).\r
-  @retval  FALSE The driver is not executing in System Management Mode (SMM). \r
+  @retval  FALSE The driver is not executing in System Management Mode (SMM).\r
 \r
 **/\r
 BOOLEAN\r
@@ -87,11 +72,8 @@ InSmm (
   VOID\r
   )\r
 {\r
-  BOOLEAN  InSmm;\r
-\r
   //\r
-  // Check to see if we are already in SMM\r
+  // We are already in SMM\r
   //\r
-  mInternalSmmBase2->InSmm (mInternalSmmBase2, &InSmm);\r
-  return InSmm;\r
+  return TRUE;\r
 }\r