Fix comparisons of enumerated types which may cause warnings for some compilers.

[mirror_edk2.git] / MdeModulePkg / Core / Dxe / Mem / Page.c

diff --git a/MdeModulePkg/Core/Dxe/Mem/Page.c b/MdeModulePkg/Core/Dxe/Mem/Page.c
index e415a896cd974cfcbece7cdf22a2e0768105daae..6d5a259eb669dc7a462e0c217ecd28ba6325d07e 100644 (file)
--- a/MdeModulePkg/Core/Dxe/Mem/Page.c
+++ b/MdeModulePkg/Core/Dxe/Mem/Page.c
@@ -1,7 +1,7 @@
 /** @file\r
   UEFI Memory page management functions.\r
 \r
-Copyright (c) 2007 - 2011, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2007 - 2012, 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
@@ -557,7 +557,7 @@ CoreAddMemoryDescriptor (
     // Make sure the memory type in the gMemoryTypeInformation[] array is valid\r
     //\r
     Type = (EFI_MEMORY_TYPE) (gMemoryTypeInformation[Index].Type);\r
-    if (Type < 0 || Type > EfiMaxMemoryType) {\r
+    if ((UINT32)Type > EfiMaxMemoryType) {\r
       continue;\r
     }\r
     if (gMemoryTypeInformation[Index].NumberOfPages != 0) {\r
@@ -581,7 +581,7 @@ CoreAddMemoryDescriptor (
           // Make sure the memory type in the gMemoryTypeInformation[] array is valid\r
           //\r
           Type = (EFI_MEMORY_TYPE) (gMemoryTypeInformation[FreeIndex].Type);\r
-          if (Type < 0 || Type > EfiMaxMemoryType) {\r
+          if ((UINT32)Type > EfiMaxMemoryType) {\r
             continue;\r
           }\r
 \r
@@ -624,7 +624,7 @@ CoreAddMemoryDescriptor (
     // Make sure the memory type in the gMemoryTypeInformation[] array is valid\r
     //\r
     Type = (EFI_MEMORY_TYPE) (gMemoryTypeInformation[Index].Type);\r
-    if (Type < 0 || Type > EfiMaxMemoryType) {\r
+    if ((UINT32)Type > EfiMaxMemoryType) {\r
       continue;\r
     }\r
     if (gMemoryTypeInformation[Index].NumberOfPages != 0) {\r
@@ -747,7 +747,7 @@ CoreConvertPages (
     //\r
     // Update counters for the number of pages allocated to each memory type\r
     //\r
-    if (Entry->Type >= 0 && Entry->Type < EfiMaxMemoryType) {\r
+    if ((UINT32)Entry->Type < EfiMaxMemoryType) {\r
       if ((Start >= mMemoryTypeStatistics[Entry->Type].BaseAddress && Start <= mMemoryTypeStatistics[Entry->Type].MaximumAddress) ||\r
           (Start >= mDefaultBaseAddress && Start <= mDefaultMaximumAddress)                                                          ) {\r
         if (NumberOfPages > mMemoryTypeStatistics[Entry->Type].CurrentNumberOfPages) {\r
@@ -758,7 +758,7 @@ CoreConvertPages (
       }\r
     }\r
 \r
-    if (NewType >= 0 && NewType < EfiMaxMemoryType) {\r
+    if ((UINT32)NewType < EfiMaxMemoryType) {\r
       if ((Start >= mMemoryTypeStatistics[NewType].BaseAddress && Start <= mMemoryTypeStatistics[NewType].MaximumAddress) ||\r
           (Start >= mDefaultBaseAddress && Start <= mDefaultMaximumAddress)                                                  ) {\r
         mMemoryTypeStatistics[NewType].CurrentNumberOfPages += NumberOfPages;\r
@@ -1011,7 +1011,7 @@ FindFreePages (
   //\r
   // Attempt to find free pages in the preferred bin based on the requested memory type\r
   //\r
-  if (NewType >= 0 && NewType < EfiMaxMemoryType && MaxAddress >= mMemoryTypeStatistics[NewType].MaximumAddress) {\r
+  if ((UINT32)NewType < EfiMaxMemoryType && MaxAddress >= mMemoryTypeStatistics[NewType].MaximumAddress) {\r
     Start = CoreFindFreePagesI (\r
               mMemoryTypeStatistics[NewType].MaximumAddress, \r
               mMemoryTypeStatistics[NewType].BaseAddress, \r
@@ -1094,7 +1094,7 @@ CoreAllocatePages (
   UINT64          MaxAddress;\r
   UINTN           Alignment;\r
 \r
-  if (Type < AllocateAnyPages || Type >= (UINTN) MaxAllocateType) {\r
+  if ((UINT32)Type >= MaxAllocateType) {\r
     return EFI_INVALID_PARAMETER;\r
   }\r
 \r
@@ -1103,6 +1103,10 @@ CoreAllocatePages (
     return EFI_INVALID_PARAMETER;\r
   }\r
 \r
+  if (Memory == NULL) {\r
+    return EFI_INVALID_PARAMETER;\r
+  }\r
+\r
   Alignment = EFI_DEFAULT_PAGE_ALLOCATION_ALIGNMENT;\r
 \r
   if  (MemoryType == EfiACPIReclaimMemory   ||\r
@@ -1464,8 +1468,10 @@ CoreGetMemoryMap (
       }\r
     }\r
     MemoryMap->Attribute = Entry->Attribute;\r
-    if (mMemoryTypeStatistics[MemoryMap->Type].Runtime) {\r
-      MemoryMap->Attribute |= EFI_MEMORY_RUNTIME;\r
+    if (MemoryMap->Type < EfiMaxMemoryType) {\r
+      if (mMemoryTypeStatistics[MemoryMap->Type].Runtime) {\r
+        MemoryMap->Attribute |= EFI_MEMORY_RUNTIME;\r
+      }\r
     }\r
 \r
     //\r