From bca08c489cc458f551ba27c3530353e77c07ba40 Mon Sep 17 00:00:00 2001 From: Star Zeng Date: Wed, 21 Jun 2017 17:26:41 +0800 Subject: [PATCH] MdePkg: Minor update to the Data parameter for PEI GetVariable() PI 1.5 spec has minor update to the Data parameter for PEI GetVariable(), and no real functional behavior change. The modifier of Data parameter: OUT VOID *Data -> OUT VOID *Data OPTIONAL The comments of Data parameter: Data Points to the buffer which will hold the returned variable value. -> Data Points to the buffer which will hold the returned variable value. May be NULL with a zero DataSize in order to determine the size of the buffer needed. The patch is to follow the spec to update the definition. Cc: Liming Gao Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Star Zeng Reviewed-by: Liming Gao --- MdePkg/Include/Ppi/ReadOnlyVariable2.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/MdePkg/Include/Ppi/ReadOnlyVariable2.h b/MdePkg/Include/Ppi/ReadOnlyVariable2.h index 6a2cd50136..6d8ea60381 100644 --- a/MdePkg/Include/Ppi/ReadOnlyVariable2.h +++ b/MdePkg/Include/Ppi/ReadOnlyVariable2.h @@ -2,7 +2,7 @@ This file declares Read-only Variable Service2 PPI. This ppi permits read-only access to the UEFI variable store during the PEI phase. -Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.
+Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.
This program and the accompanying materials are licensed and made available under the terms and conditions of the BSD License that accompanies this distribution. The full text of the license may be found at @@ -41,9 +41,10 @@ typedef struct _EFI_PEI_READ_ONLY_VARIABLE2_PPI EFI_PEI_READ_ONLY_VARIABLE2_PPI @param DataSize On entry, points to the size in bytes of the Data buffer. On return, points to the size of the data returned in Data. @param Data Points to the buffer which will hold the returned variable value. + May be NULL with a zero DataSize in order to determine the size of the buffer needed. @retval EFI_SUCCESS The variable was read successfully. - @retval EFI_NOT_FOUND The variable could not be found. + @retval EFI_NOT_FOUND The variable was not found. @retval EFI_BUFFER_TOO_SMALL The DataSize is too small for the resulting data. DataSize is updated with the size required for the specified variable. @@ -59,7 +60,7 @@ EFI_STATUS IN CONST EFI_GUID *VariableGuid, OUT UINT32 *Attributes, IN OUT UINTN *DataSize, - OUT VOID *Data + OUT VOID *Data OPTIONAL );