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From: "Laszlo Ersek" <lersek@redhat.com>
To: edk2-devel-groups-io <devel@edk2.groups.io>
Cc: Liming Gao <liming.gao@intel.com>,
	Michael D Kinney <michael.d.kinney@intel.com>
Subject: [PATCH 01/10] MdePkg/PiFirmwareFile: express IS_SECTION2 in terms of SECTION_SIZE
Date: Sat, 13 Apr 2019 01:31:19 +0200	[thread overview]
Message-ID: <20190412233128.4756-2-lersek@redhat.com> (raw)
In-Reply-To: <20190412233128.4756-1-lersek@redhat.com>

The IS_SECTION2() function-like macro duplicates the SECTION_SIZE()
calculation, just to compare the computed size against 0xFFFFFF. Invoke
SECTION_SIZE() instead; only preserve the comparison.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Bugzilla: https://bugzilla.tianocore.org/show_bug.cgi?id=1710
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
---
 MdePkg/Include/Pi/PiFirmwareFile.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/MdePkg/Include/Pi/PiFirmwareFile.h b/MdePkg/Include/Pi/PiFirmwareFile.h
index 56efabcba3ec..a9f3bcc4eb8e 100644
--- a/MdePkg/Include/Pi/PiFirmwareFile.h
+++ b/MdePkg/Include/Pi/PiFirmwareFile.h
@@ -475,21 +475,21 @@ typedef struct {
   ///
   /// A UINT16 that represents a particular build. Subsequent builds have monotonically
   /// increasing build numbers relative to earlier builds.
   ///
   UINT16                        BuildNumber;
   CHAR16                        VersionString[1];
 } EFI_VERSION_SECTION2;
 
-#define IS_SECTION2(SectionHeaderPtr) \
-    ((UINT32) (*((UINT32 *) ((EFI_COMMON_SECTION_HEADER *) (UINTN) SectionHeaderPtr)->Size) & 0x00ffffff) == 0x00ffffff)
-
 #define SECTION_SIZE(SectionHeaderPtr) \
     ((UINT32) (*((UINT32 *) ((EFI_COMMON_SECTION_HEADER *) (UINTN) SectionHeaderPtr)->Size) & 0x00ffffff))
 
+#define IS_SECTION2(SectionHeaderPtr) \
+    (SECTION_SIZE (SectionHeaderPtr) == 0x00ffffff)
+
 #define SECTION2_SIZE(SectionHeaderPtr) \
     (((EFI_COMMON_SECTION_HEADER2 *) (UINTN) SectionHeaderPtr)->ExtendedSize)
 
 #pragma pack()
 
 #endif
 
-- 
2.19.1.3.g30247aa5d201



  reply	other threads:[~2019-04-12 23:31 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-12 23:31 [PATCH 00/10] patches for some warnings raised by "RH covscan" Laszlo Ersek
2019-04-12 23:31 ` Laszlo Ersek [this message]
2019-04-15 17:01   ` [edk2-devel] [PATCH 01/10] MdePkg/PiFirmwareFile: express IS_SECTION2 in terms of SECTION_SIZE Philippe Mathieu-Daudé
2019-04-12 23:31 ` [PATCH 02/10] MdePkg/PiFirmwareFile: fix undefined behavior in SECTION_SIZE Laszlo Ersek
2019-04-14  7:19   ` [edk2-devel] " Jordan Justen
2019-04-15 16:15     ` Laszlo Ersek
2019-04-16  8:28       ` Liming Gao
2019-04-16  9:04       ` Jordan Justen
2019-04-16 10:59         ` Laszlo Ersek
2019-04-16 16:50           ` Philippe Mathieu-Daudé
2019-04-17 10:08             ` Laszlo Ersek
2019-04-16 18:48           ` Jordan Justen
2019-04-16 23:25             ` Andrew Fish
2019-04-17 10:29               ` Laszlo Ersek
2019-04-17 11:44                 ` Andrew Fish
2019-04-17 14:59                   ` Laszlo Ersek
2019-04-17 19:35                     ` Jordan Justen
2019-04-18  9:38                       ` Laszlo Ersek
2019-04-18 15:18                         ` Liming Gao
2019-04-17 10:01             ` Laszlo Ersek
2019-04-12 23:31 ` [PATCH 03/10] BaseTools/PiFirmwareFile: " Laszlo Ersek
2019-04-12 23:31 ` [PATCH 04/10] MdePkg/PiFirmwareFile: fix undefined behavior in FFS_FILE_SIZE Laszlo Ersek
2019-04-15 17:23   ` [edk2-devel] " Philippe Mathieu-Daudé
2019-04-17 17:52   ` Michael D Kinney
2019-04-17 18:31     ` Michael D Kinney
2019-04-18  9:06       ` Laszlo Ersek
2019-04-17 18:31     ` Andrew Fish
2019-04-17 18:36       ` Michael D Kinney
2019-04-18  8:48         ` Laszlo Ersek
2019-04-18  8:45       ` Laszlo Ersek
2019-04-18 23:12         ` Laszlo Ersek
2019-04-18 17:20     ` Philippe Mathieu-Daudé
2019-04-18 17:59       ` Michael D Kinney
2019-04-18 18:12         ` Philippe Mathieu-Daudé
2019-04-12 23:31 ` [PATCH 05/10] OvmfPkg/Sec: fix out-of-bounds reads Laszlo Ersek
2019-04-15 17:24   ` [edk2-devel] " Philippe Mathieu-Daudé
2019-04-12 23:31 ` [PATCH 06/10] OvmfPkg/QemuVideoDxe: avoid arithmetic on null pointer Laszlo Ersek
2019-04-12 23:31 ` [PATCH 07/10] OvmfPkg/AcpiPlatformDxe: suppress invalid "deref of undef pointer" warning Laszlo Ersek
2019-04-15 17:26   ` [edk2-devel] " Philippe Mathieu-Daudé
2019-04-12 23:31 ` [PATCH 08/10] OvmfPkg: suppress "Value stored to ... is never read" analyzer warnings Laszlo Ersek
2019-04-14  8:03   ` [edk2-devel] " Jordan Justen
2019-04-15 16:25     ` Laszlo Ersek
2019-04-16  9:26       ` Jordan Justen
2019-04-16 11:44         ` Laszlo Ersek
2019-04-12 23:31 ` [PATCH 09/10] OvmfPkg/AcpiPlatformDxe: catch theoretical nullptr deref in Xen code Laszlo Ersek
2019-04-15 17:28   ` [edk2-devel] " Philippe Mathieu-Daudé
2019-04-12 23:31 ` [PATCH 10/10] OvmfPkg/BasePciCapLib: suppress invalid "nullptr deref" warning Laszlo Ersek
2019-04-15 17:31   ` [edk2-devel] " Philippe Mathieu-Daudé
2019-04-16 11:01     ` Laszlo Ersek
2019-04-12 23:36 ` [PATCH 00/10] patches for some warnings raised by "RH covscan" Ard Biesheuvel
2019-04-15 16:16   ` Laszlo Ersek
2019-04-18 14:20 ` [edk2-devel] " Laszlo Ersek

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