From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id F099146204; Wed, 12 Feb 2025 16:03:33 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id D9DF24279D; Wed, 12 Feb 2025 16:03:33 +0100 (CET) Received: from mail-pl1-f182.google.com (mail-pl1-f182.google.com [209.85.214.182]) by mails.dpdk.org (Postfix) with ESMTP id 88AD44111B for ; Wed, 12 Feb 2025 16:03:32 +0100 (CET) Received: by mail-pl1-f182.google.com with SMTP id d9443c01a7336-220c8f38febso8336075ad.2 for ; Wed, 12 Feb 2025 07:03:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20230601.gappssmtp.com; s=20230601; t=1739372612; x=1739977412; darn=dpdk.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:from:to:cc:subject:date :message-id:reply-to; bh=bbnngU6XckjzKhSN+7yGevwx1cyyIatdJJZdPrFRIKI=; b=p1i3fn20jLwZzO4xGtiJxVHj6ooOoKsSlQWOWk7+RnbN6+o2aT/Tc0hwCtlaXP4eHh Pwcb1Z+tGn6UsTWaNMgM3QLaHkNAsf75OKkcxjWSvlyARUL8B4CR1Nw2eFCF0taH1S+r B6rcYdJXSUxbDR5DVrpKWkWahhTkTxGuBm6+MsWxxJrZ+hVOZaaOYoZrJaNI5zVn5lRv 7uFAPtbga11Kq84osP9U+VPggoCnJ0SrGRoJWE/Rz5ONkH4PXvMjh8XI5JgIi7A+65gx nhcPG3B8yhPQ81lKKcjmyaqwFdsn3EFxO0iFbm6644uJmAtyAMm64TKTkJMwAlMt+7rH irEg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1739372612; x=1739977412; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=bbnngU6XckjzKhSN+7yGevwx1cyyIatdJJZdPrFRIKI=; b=Hnx/Mltot9PhKb4boK1wan6nJwLMX1yLWr4YhokF8wppOHzYDAUUbIixiq0AtmV2/m oPTXUpr1FzJ/AZKFIF1bPTywl65DdLuAqoDdhsTphFoCLYwqxCqh7uZ/+fqL475MEiDU LnHu6WYmfrTXyQfluY/85xnm274EH+cebm7mcFYdxkoVeQp/5tgnGPlCx6qklthNSUSq 2SoW7ZHf9spcpF+KyiKEkOxewvlCeSdx2JPK0/2k7doKHwTT0Nej9KfJLuaiiJuyh75v UTKffa9hjOE0MqEmK+MGTMrC1sTZyZJGkGoOMOwTOnaYMXnglOG+/cX+THLuHwgz1zpi 3HLQ== X-Gm-Message-State: AOJu0YwiTvRhqbOcEX9Oko0T99CNcK/nMuBFeFZBYMKNmrpYsfeFZcAx 1p1tzLqJenZJUOrfEkCQbH3S66v8NtDohYH4P7UIt3RTv8/cOjRM+wTHMLjgUyjyuY63nPonz/w 7 X-Gm-Gg: ASbGncs1+giEYGGYWmPQXFMF0eLJKBLMaRifZMDKEmAENIM173GI14KlXu2lDqkPdF1 DTAQm0a+Eha0ER+ByMOQrwr2Y/8BYC7HJ78JsTortZXBOisJZKhSVg+rQbnpYTUWiRJtdFq5Wxa fBLU15rr+PK9vd71qsvt/oAw+VCEZgoLONoRzTzAnoduoj/AVGDSMb11waIQYuOZoytp/5Gu9Sp zMduQ87NUnByZyq58Af4LXCbVAyHGY5QWvK6d+HlwrMFgiDot4mDLeZWqvIOeGUmzLZHIL0kAkg s78Wn+rlnBsHueh7Sm0VXDRXI3/0Pj1/6nnp7PAEys3u3h41eFxjr8I/nypYNtyaeBme X-Google-Smtp-Source: AGHT+IFKPtiHsSa1OXXe+CbuZbw+rLEJU6Y7NIKEvAe3SG40Pr1290cf2z3efecnW3hE1LfbotVZrA== X-Received: by 2002:a05:6a00:2d08:b0:730:95f1:53ca with SMTP id d2e1a72fcca58-7322c591c13mr4313746b3a.10.1739372611608; Wed, 12 Feb 2025 07:03:31 -0800 (PST) Received: from hermes.local (204-195-96-226.wavecable.com. [204.195.96.226]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-73048ae7c24sm11223500b3a.78.2025.02.12.07.03.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Feb 2025 07:03:31 -0800 (PST) Date: Wed, 12 Feb 2025 07:03:29 -0800 From: Stephen Hemminger To: Morten =?UTF-8?B?QnLDuHJ1cA==?= Cc: , "Tyler Retzlaff" Subject: Re: [PATCH v5 01/11] eal: introduce new secure memory fill Message-ID: <20250212070329.7d1b816c@hermes.local> In-Reply-To: <98CBD80474FA8B44BF855DF32C47DC35E9FA26@smartserver.smartshare.dk> References: <20241114011129.451243-1-stephen@networkplumber.org> <20250211173720.1188517-1-stephen@networkplumber.org> <20250211173720.1188517-2-stephen@networkplumber.org> <98CBD80474FA8B44BF855DF32C47DC35E9FA26@smartserver.smartshare.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org On Wed, 12 Feb 2025 10:09:27 +0100 Morten Br=C3=B8rup wrote: > > From: Stephen Hemminger [mailto:stephen@networkplumber.org] > > Sent: Tuesday, 11 February 2025 18.35 > >=20 > > When memset() is used before a release function such as free, > > the compiler if allowed to optimize the memset away under > > the as-if rules. This is normally ok, but in certain cases such > > as passwords or security keys it is problematic. > >=20 > > Introduce a DPDK wrapper which is equivalent to the C++ memset_s > > function. Naming chosen to be similar to kernel. =20 >=20 > It's not like C11 memset_s, which takes one more parameter, and is an opt= ional part of the C11 standard. > It's like C23 memset_explicit. >=20 > Wouldn't it be better to name it after the C standard function, i.e. rte_= memset_explicit? >=20 > Or maybe backport memset_explicit from C23, i.e. omit the rte_ prefix, if= not using a C23 compiler? >=20 I prefer parallel Linux kernal API names, lots of drivers share code.