From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3FB70EF99C2 for ; Fri, 13 Feb 2026 18:22:08 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 1F59F402C0; Fri, 13 Feb 2026 19:22:07 +0100 (CET) Received: from fout-b6-smtp.messagingengine.com (fout-b6-smtp.messagingengine.com [202.12.124.149]) by mails.dpdk.org (Postfix) with ESMTP id 211FD402B2; Fri, 13 Feb 2026 19:22:06 +0100 (CET) Received: from phl-compute-06.internal (phl-compute-06.internal [10.202.2.46]) by mailfout.stl.internal (Postfix) with ESMTP id 3B0571D000C0; Fri, 13 Feb 2026 13:22:05 -0500 (EST) Received: from phl-frontend-04 ([10.202.2.163]) by phl-compute-06.internal (MEProxy); Fri, 13 Feb 2026 13:22:05 -0500 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=fm3; t=1771006924; x=1771093324; bh=VYcbDcJbmcIbZL+rXcAg3hTxTXsGnbA20b/Pe1KZklI=; b= gzx/SbrdJy0Xp2pV1QKBUWsGTkw1LN7UN2ySnSKjgGNyr3N5dc+mdNHwPwRPfsLB X+TWLckgp4Dh9p2mtuSZNkQJ3e4dnbx7WM3wF8slV0bpXuSQVlT3w3lEFobhLkte RCRGU+Kh9XWL47b7X0GNCXaFWN8n4ckhpRSWMdO+RDbWoi+K8xaeX884MMKrXOJB acv7j1fGDxyRrEUNS1B7RUFWNt1Yvj1egh62hlH+vtYoTHHl2I70SD6vMivLZlYU IyhzBmlODc0ja2xuTFotRfmxbxUo/BX1nRAX0OCR2XRPVIOGRwLDzLTL2NkWsOdd k2FQLNPvblPNRChFdJ2vwQ== 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=fm3; t=1771006924; x= 1771093324; bh=VYcbDcJbmcIbZL+rXcAg3hTxTXsGnbA20b/Pe1KZklI=; b=O KMICupjlzrrmK8Z3zZE80nDZ1IaHS9E44sCyiw+pjp2QUSDxtF0JwR6++VXLNTYP Dny4LHtJp5Oh/NAyG/WluAY4ZhR9eIhNzHvx1PmwwHYMMO6XnUJE2Y+Q3zWypTpX s8rY6daTFXx8FE081ASkZ+fsj/7bgCeLNkx/kdt6JCnV0EFiQ3EvVVoxvFPFkdQU s27yE59p7LlI8Hvtm9qPlNKeYJerzh2VJsBJXorS/AQtaiMgieQH3QlknnkELc7Q AVNkvOJof6Xt+chTWTX8svw9npNgaPEorey1m3VmNq996jhkxaFCuSA9bkFyzuEa 4Wzp81UQAfA8yKX1/qR5A== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeefgedrtddtgddvtdekleeiucetufdoteggodetrf dotffvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfurfetoffkrfgpnffqhgenuceu rghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujf gurhephffvvefufffkjghfggfgtgesthhqredttddtjeenucfhrhhomhepvfhhohhmrghs ucfoohhnjhgrlhhonhcuoehthhhomhgrshesmhhonhhjrghlohhnrdhnvghtqeenucggtf frrghtthgvrhhnpeegtddtleejjeegffekkeektdejvedtheevtdekiedvueeuvdeiuddv leevjeeujeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhroh hmpehthhhomhgrshesmhhonhhjrghlohhnrdhnvghtpdhnsggprhgtphhtthhopeehpdhm ohguvgepshhmthhpohhuthdprhgtphhtthhopegsrhhutggvrdhrihgthhgrrhgushhonh esihhnthgvlhdrtghomhdprhgtphhtthhopeguvghvseguphgukhdrohhrghdprhgtphht thhopehvlhgrughimhhirhdrmhgvughvvggukhhinhesihhnthgvlhdrtghomhdprhgtph htthhopegurghvihgurdhmrghrtghhrghnugesrhgvughhrghtrdgtohhmpdhrtghpthht ohepshhtrggslhgvseguphgukhdrohhrgh X-ME-Proxy: Feedback-ID: i47234305:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Fri, 13 Feb 2026 13:22:03 -0500 (EST) From: Thomas Monjalon To: Bruce Richardson Cc: dev@dpdk.org, vladimir.medvedkin@intel.com, David Marchand , stable@dpdk.org Subject: Re: [PATCH] hash: fix maybe-uninitialized warnings on build Date: Fri, 13 Feb 2026 19:22:01 +0100 Message-ID: <4193989.RQLdHFEMZ3@thomas> In-Reply-To: References: <20260212162705.3923717-1-bruce.richardson@intel.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 12/02/2026 17:54, David Marchand: > On Thu, 12 Feb 2026 at 17:27, Bruce Richardson > wrote: > > > > Following recent changes to the test-meson-build.sh script[1] to use mo= re > > build-types warnings are seen in the hash library GFNI code about values > > possibly being uninitialized. > > > > In function =E2=80=98_mm512_mask_permutexvar_epi8=E2=80=99, > > inlined from =E2=80=98__rte_thash_gfni=E2=80=99 at ../lib/hash/rte_= thash_x86_gfni.h:150:6: > > /usr/lib/gcc/x86_64-linux-gnu/15/include/avx512vbmiintrin.h:97:20: erro= r: =E2=80=98tuple_bytes_2=E2=80=99 may be used uninitialized [-Werror=3Dmay= be-uninitialized] > > > > These all appear to be a false positive, but fix these by explicitly > > zero-initializing the offending values. > > > > [1] 177acaf5cf75 ("devtools: test different build types") > > > > Fixes: 4fd8c4cb0de1 ("hash: add new Toeplitz hash implementation") > > Cc: stable@dpdk.org > > > > Signed-off-by: Bruce Richardson >=20 > Too bad Intel CI did not catch it. >=20 > Acked-by: David Marchand Applied, thanks.