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 6B5CC46BDA; Mon, 21 Jul 2025 22:15:44 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id E75B84026C; Mon, 21 Jul 2025 22:15:43 +0200 (CEST) Received: from fout-a6-smtp.messagingengine.com (fout-a6-smtp.messagingengine.com [103.168.172.149]) by mails.dpdk.org (Postfix) with ESMTP id F06EF4021E; Mon, 21 Jul 2025 22:15:42 +0200 (CEST) Received: from phl-compute-12.internal (phl-compute-12.phl.internal [10.202.2.52]) by mailfout.phl.internal (Postfix) with ESMTP id A1697EC02F3; Mon, 21 Jul 2025 16:15:42 -0400 (EDT) Received: from phl-mailfrontend-02 ([10.202.2.163]) by phl-compute-12.internal (MEProxy); Mon, 21 Jul 2025 16:15:42 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=monjalon.net; h= cc:cc:content-transfer-encoding:content-type:content-type:date :date:from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:subject:subject:to:to; s=fm2; t=1753128942; x=1753215342; bh=eK1RKACUToJXgx6uynwrO7E9e8Vsgw/bZkgrWhoVRhs=; b= cV627SHzrxlpuWbS3irGkC2cwcgKFSgjmgSHb7625czd4vVNRhBRy+0OSEaWOvo2 VWjXmQ/jUJuiT+ZchjDW3MUzHHeLrqziM+X0iJA7Rs/hn3+gU4oB6/YTsM2kj7zs SePX1Dz1VMVL5SWLhPox+PJNoO5b+XD7TOnlafdvoZlJMkgFMgWhjrwE+VESWg2g uTFXX/4mN35Uy86d3mac1RYNVKq4aIB+vDtpRwB50/2wiH9d1K9NDMnhiWSTYRnh RdLShwPSfSq2ipahDWAvwOHvi6cFj4hG4hXOOjKnoqGTSb/BqqR1GQ7i+dSfbyWP nR7aRKdTn/OQk2KYWrJ5ng== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:content-type:date:date:feedback-id:feedback-id :from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:subject:subject:to:to:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm2; t=1753128942; x= 1753215342; bh=eK1RKACUToJXgx6uynwrO7E9e8Vsgw/bZkgrWhoVRhs=; b=o EBvo74Co/FkEPnSq0dmZKrHJ4ccXw6D3LkLw8j6Hyl6wEr5u41ToL8/wnfAKhG5v CLhAaNQquCPHtvDPD0VLnZjER1std2nZYbhv0gvLJF8tFTeJt4IDRmRlDKpdrwSQ 204KKrvoO5VkFGZ8M2Gh2nrxoTKq9HU2MZUz8JHR2fY17xIm1W99OLggd5+YE2Ax cmSd0+gMmGwFLdlrffk2X+GETuAu8/q4HF/2rZPMgQh1lGYe3H6OFjUQousKNKuj UdHcdGGbuCEhd6TuIYf02caFRKn01ApobHWXdTFiMM1+CZv7GQpuE9R4sSSUJgJo UdVdNf02c7nAa9O2hYQSw== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeeffedrtdefgdejfedtudcutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpuffrtefokffrpgfnqfghnecuuegr ihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjug hrpefhvfevufffkfgjfhgggfgtsehtqhertddttdejnecuhfhrohhmpefvhhhomhgrshcu ofhonhhjrghlohhnuceothhhohhmrghssehmohhnjhgrlhhonhdrnhgvtheqnecuggftrf grthhtvghrnhepgedttdeljeejgeffkeekkedtjeevtdehvedtkeeivdeuuedvieduvdel veejueejnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomh epthhhohhmrghssehmohhnjhgrlhhonhdrnhgvthdpnhgspghrtghpthhtohepfedpmhho uggvpehsmhhtphhouhhtpdhrtghpthhtohepuggrvhhiugdrmhgrrhgthhgrnhgusehrvg guhhgrthdrtghomhdprhgtphhtthhopeguvghvseguphgukhdrohhrghdprhgtphhtthho pehtvggthhgsohgrrhguseguphgukhdrohhrgh X-ME-Proxy: Feedback-ID: i47234305:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Mon, 21 Jul 2025 16:15:41 -0400 (EDT) From: Thomas Monjalon To: David Marchand Cc: dev@dpdk.org, techboard@dpdk.org Subject: Re: [PATCH] doc: announce changes in structure alignments for UBSan Date: Mon, 21 Jul 2025 22:15:40 +0200 Message-ID: <2033074.jZfb76A358@thomas> In-Reply-To: <20250709124022.4105481-1-david.marchand@redhat.com> References: <20250709124022.4105481-1-david.marchand@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 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 09/07/2025 14:40, David Marchand: > As part of the effort to limit undefined behaviors in DPDK code, some > structure alignments revealed not to be accurate enough. > At the moment two structures have been identified but others may be > found while running more parts of DPDK with UBSan. >=20 > Though the calling code can explicitly request alignment, > we would prefer to put the alignment constraints as part of the > structure definition itself. >=20 > Such changes are ABI breakages. >=20 > Signed-off-by: David Marchand Acked-by: Bruce Richardson Acked-by: Morten Br=C3=B8rup Acked-by: Konstantin Ananyev Applied, thanks.