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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 v2 1/5] MdePkg/PiFirmwareFile: express IS_SECTION2 in terms of SECTION_SIZE
Date: Thu, 18 Apr 2019 19:47:06 +0200	[thread overview]
Message-ID: <20190418174710.12236-2-lersek@redhat.com> (raw)
In-Reply-To: <20190418174710.12236-1-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>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---

Notes:
    v2:
    
    - pick up Ard's A-b
    
    - pick up Phil's R-b

 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
@@ -480,12 +480,12 @@ typedef struct {
   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)
 
-- 
2.19.1.3.g30247aa5d201



  reply	other threads:[~2019-04-18 17:47 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-18 17:47 [PATCH v2 0/5] patches for some warnings raised by "RH covscan" Laszlo Ersek
2019-04-18 17:47 ` Laszlo Ersek [this message]
2019-04-18 17:47 ` [PATCH v2 2/5] MdePkg/PiFirmwareFile: fix undefined behavior in SECTION_SIZE Laszlo Ersek
2019-04-23  8:00   ` [edk2-devel] " Philippe Mathieu-Daudé
2019-04-18 17:47 ` [PATCH v2 3/5] BaseTools/PiFirmwareFile: " Laszlo Ersek
2019-04-23  8:00   ` [edk2-devel] " Philippe Mathieu-Daudé
2019-04-23 10:30   ` Laszlo Ersek
2019-04-23 11:47     ` Liming Gao
2019-04-23 11:56   ` Bob Feng
2019-04-18 17:47 ` [PATCH v2 4/5] MdePkg/PiFirmwareFile: fix undefined behavior in FFS_FILE_SIZE Laszlo Ersek
2019-04-23  8:00   ` [edk2-devel] " Philippe Mathieu-Daudé
2019-04-18 17:47 ` [PATCH v2 5/5] OvmfPkg/Sec: fix out-of-bounds reads Laszlo Ersek
2019-04-18 19:57 ` [PATCH v2 0/5] patches for some warnings raised by "RH covscan" Michael D Kinney
2019-04-18 20:03 ` Jordan Justen
2019-04-24 15:35 ` [edk2-devel] " Laszlo Ersek

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