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ArmPkg/ArmMmuLib: Use function pointer type

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mReplaceLiveEntryFunc is a function pointer but assigned as a VOID*
pointer:

  mReplaceLiveEntryFunc = *(VOID **)GET_GUID_HOB_DATA (Hob);

This leads to the Visual Studio warning:

  nonstandard extension, function/data pointer conversion in
  expression

This change updates the assignment to avoid using a data pointer and
defines a type for the function pointer to succinctly and accurately
refer to the type when it is used in the library code.

Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
This commit is contained in:
Michael Kubacki 2023-11-27 18:57:43 -05:00 committed by mergify[bot]
parent 0e9ce9146a
commit d451bba399
5 changed files with 33 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuLibCore.c
View File

@ -20,16 +20,9 @@
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/HobLib.h>
#include "ArmMmuLibInternal.h"
STATIC
VOID (
EFIAPI *mReplaceLiveEntryFunc
)(
IN UINT64 *Entry,
IN UINT64 Value,
IN UINT64 RegionStart,
IN BOOLEAN DisableMmu
) = ArmReplaceLiveTranslationEntry;
STATIC ARM_REPLACE_LIVE_TRANSLATION_ENTRY mReplaceLiveEntryFunc = ArmReplaceLiveTranslationEntry;
STATIC
UINT64
@ -742,7 +735,7 @@ ArmMmuBaseLibConstructor (
Hob = GetFirstGuidHob (&gArmMmuReplaceLiveTranslationEntryFuncGuid);
if (Hob != NULL) {
mReplaceLiveEntryFunc = *(VOID **)GET_GUID_HOB_DATA (Hob);
mReplaceLiveEntryFunc = *(ARM_REPLACE_LIVE_TRANSLATION_ENTRY *)GET_GUID_HOB_DATA (Hob);
} else {
//
// The ArmReplaceLiveTranslationEntry () helper function may be invoked

7
ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuPeiLibConstructor.c
View File

@ -13,6 +13,7 @@
#include <Library/CacheMaintenanceLib.h>
#include <Library/DebugLib.h>
#include <Library/HobLib.h>
#include "ArmMmuLibInternal.h"
EFI_STATUS
EFIAPI
@ -21,9 +22,9 @@ ArmMmuPeiLibConstructor (
IN CONST EFI_PEI_SERVICES **PeiServices
)
{
extern UINT32 ArmReplaceLiveTranslationEntrySize;
VOID *ArmReplaceLiveTranslationEntryFunc;
VOID *Hob;
extern UINT32 ArmReplaceLiveTranslationEntrySize;
ARM_REPLACE_LIVE_TRANSLATION_ENTRY ArmReplaceLiveTranslationEntryFunc;
VOID *Hob;
EFI_FV_FILE_INFO FileInfo;
EFI_STATUS Status;

2
ArmPkg/Library/ArmMmuLib/ArmMmuBaseLib.inf
View File

@ -19,10 +19,12 @@
CONSTRUCTOR = ArmMmuBaseLibConstructor
[Sources.AARCH64]
ArmMmuLibInternal.h
AArch64/ArmMmuLibCore.c
AArch64/ArmMmuLibReplaceEntry.S
[Sources.ARM]
ArmMmuLibInternal.h
Arm/ArmMmuLibConvert.c
Arm/ArmMmuLibCore.c
Arm/ArmMmuLibUpdate.c

23
ArmPkg/Library/ArmMmuLib/ArmMmuLibInternal.h Normal file
View File

@ -0,0 +1,23 @@
/** @file
Arm MMU library instance internal header file.
Copyright (C) Microsoft Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef ARM_MMU_LIB_INTERNAL_H_
#define ARM_MMU_LIB_INTERNAL_H_
typedef
VOID(
EFIAPI *ARM_REPLACE_LIVE_TRANSLATION_ENTRY
)(
IN UINT64 *Entry,
IN UINT64 Value,
IN UINT64 RegionStart,
IN BOOLEAN DisableMmu
);
#endif

1
ArmPkg/Library/ArmMmuLib/ArmMmuPeiLib.inf
View File

@ -17,6 +17,7 @@
CONSTRUCTOR = ArmMmuPeiLibConstructor
[Sources.AARCH64]
ArmMmuLibInternal.h
AArch64/ArmMmuLibCore.c
AArch64/ArmMmuPeiLibConstructor.c
AArch64/ArmMmuLibReplaceEntry.S