From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 19D8C21967BFA for ; Wed, 21 Jun 2017 02:48:12 -0700 (PDT) Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 21 Jun 2017 02:49:35 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.39,368,1493708400"; d="scan'208";a="117498470" Received: from shwdeopenpsi068.ccr.corp.intel.com ([10.239.9.2]) by fmsmga006.fm.intel.com with ESMTP; 21 Jun 2017 02:49:34 -0700 From: Star Zeng To: edk2-devel@lists.01.org Cc: Star Zeng , Liming Gao Date: Wed, 21 Jun 2017 17:49:30 +0800 Message-Id: <1498038570-146532-3-git-send-email-star.zeng@intel.com> X-Mailer: git-send-email 2.7.0.windows.1 In-Reply-To: <1498038570-146532-1-git-send-email-star.zeng@intel.com> References: <1498038570-146532-1-git-send-email-star.zeng@intel.com> Subject: [PATCH 2/2] MdeModulePkg: Minor update to the Data parameter for PEI GetVariable() X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Jun 2017 09:48:12 -0000 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 implementation. Cc: Liming Gao Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Star Zeng --- MdeModulePkg/Universal/Variable/Pei/Variable.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/MdeModulePkg/Universal/Variable/Pei/Variable.c b/MdeModulePkg/Universal/Variable/Pei/Variable.c index a072c31e60e7..4060f4711dd0 100644 --- a/MdeModulePkg/Universal/Variable/Pei/Variable.c +++ b/MdeModulePkg/Universal/Variable/Pei/Variable.c @@ -947,9 +947,10 @@ FindVariable ( @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 be 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. @@ -965,7 +966,7 @@ PeiGetVariable ( IN CONST EFI_GUID *VariableGuid, OUT UINT32 *Attributes, IN OUT UINTN *DataSize, - OUT VOID *Data + OUT VOID *Data OPTIONAL ) { VARIABLE_POINTER_TRACK Variable; -- 2.7.0.windows.1