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 C9254471B8; Thu, 8 Jan 2026 17:10:21 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id F1F69402D3; Thu, 8 Jan 2026 17:10:20 +0100 (CET) Received: from mail-wm1-f49.google.com (mail-wm1-f49.google.com [209.85.128.49]) by mails.dpdk.org (Postfix) with ESMTP id 350204027A for ; Thu, 8 Jan 2026 17:10:20 +0100 (CET) Received: by mail-wm1-f49.google.com with SMTP id 5b1f17b1804b1-47774d3536dso19833515e9.0 for ; Thu, 08 Jan 2026 08:10:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20230601.gappssmtp.com; s=20230601; t=1767888620; x=1768493420; 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=Foqnl1uOZxT/bgzGoMD9C9mUeTw71EFY24dUnN1Xfv4=; b=3XTHFxNK3ltGzZcoFrNldjpIOKG2NlZra6sr1Bniy+bUHfK7bIvgQcXc7mWUnSknM5 s2bl2EYEnBiXVIAaZVOnQSoCUX8Bxe17neR84rjPV9gRgMot6ZT8OMMDCKM50PjLqes/ k3/Z7GZqj4qDgR7mPQL1621kxvIq5EXi8obdpL4fcC15vjp6GnlD+u+hi7Oy4pig5x5q FORNevGfqdhRRxXO9/G24xdVVcfE5rCPPv87kOoEGNqrKPF7twE+3r0zFvPCxko5gC1T BkRMT3NvIt42IR+zswQN7GkPK1LPEZhyxIAU9ASd0nqW6rmKGG5K6oHDzOFex6xJqMyj Fk5Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1767888620; x=1768493420; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=Foqnl1uOZxT/bgzGoMD9C9mUeTw71EFY24dUnN1Xfv4=; b=aRfSp39sSBA7NE765RDDC8eSd692l7TAf94pOuFnUbBEqSdUbmBt5biHh/5qIJtpJe PPC1vNEIjuJpiDFOTFXJ//YDrvRr9zMMlGAyYD8iYx0dxADReYosWC3cHZegh1pmAZPB 5DOQuu6Mp66IKgZq7uR4u6LdP4JUdeOvu2b/pyyuUdKyhN34blY04tnVUHzZEzCVE5Tw 3GtIzmGrx41mSEJ1uvTZ8cS7wB3eWo367sTgkSaM9KYC3DyKsK1P1PpA6vbcJyb4z0Cy ZJyVnon9yJEbfr0msmEkmRty03c0DqWWtHobjZHMHwCKCAjXs8BtBXhfbV0yUDUEBwHC 7J7w== X-Gm-Message-State: AOJu0YzfNeyyBbh5GsRPUwdxP+1TEEwHq8im3X++On0AbVtVdTOW3fd1 27eMwloae8k61xPPzoKHd/Ff9JV9Jb/DQiRzygKX4jAeO+Odv/bW6ltonai9pHR6rVz/7THA5iO iP1Bp X-Gm-Gg: AY/fxX7fRdpB7GWpqO+Y6ev7Th/n3X0Lfi9QZqKxAoeMOTZPmw5qfMSFyBbDUSrGcQV lBP9yc6pHMqTfxRW9RsHYWWjvNBuBZMHSfz6s2nRW1agMnMK85xw8NfPuXDCJzznDSPhS3by2uK ekFlQf71Mqu8io6YTNfxHS00ZgxAgeTmAoS5XHW+/nn+ba6PnXm0SLjdUp5+ivpCW8VhEA52rrf QNcWC69tCVFIHMCIluq1c/jvVMWduzAtAJGADZAtRgM1TXsAIEucb3+xZYmkPgm7eoSltTz0RqQ kPwIva5LqNPKm3eTMpHfGH7jqyf1ILlkPLBsqfcQsT8mMGDY2RDHqyvIUAdUHXJggqZiCbwFEX4 Hrn0GchFH7iROPzvSAisTjxlzAmRuf958o5iaEIAydgFR4jkhUoG3YGQYrEi5TpUeISmnWUY9v5 ozNlt1+uG/3QdOoAIZY8dqLFSHIEUoGO+aiJXwYZHXu2I7FUs0y55z X-Google-Smtp-Source: AGHT+IH975sQ9BMBIicus7ksNOjH3s5hmZEVBpS1+20ilQE29WMAoGwg+ejK1VFCf3Sg6Cucr9djXg== X-Received: by 2002:a05:600c:1f8f:b0:47d:6c36:a125 with SMTP id 5b1f17b1804b1-47d8487f5cfmr81181685e9.17.1767888619438; Thu, 08 Jan 2026 08:10:19 -0800 (PST) Received: from phoenix.local (204-195-96-226.wavecable.com. [204.195.96.226]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-47d865e3dfasm40034745e9.2.2026.01.08.08.10.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 08 Jan 2026 08:10:18 -0800 (PST) Date: Thu, 8 Jan 2026 08:10:13 -0800 From: Stephen Hemminger To: scott.k.mitch1@gmail.com Cc: dev@dpdk.org, mb@smartsharesystems.com Subject: Re: [PATCH v5] net: optimize raw checksum computation Message-ID: <20260108081013.730349bd@phoenix.local> In-Reply-To: <20260108061338.27217-1-scott.k.mitch1@gmail.com> References: <20260108061338.27217-1-scott.k.mitch1@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit 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 Thu, 8 Jan 2026 01:13:38 -0500 scott.k.mitch1@gmail.com wrote: > +#ifdef RTE_CC_GCC > + /* Suppress GCC -Wmaybe-uninitialized false positive. No assembly/runtime impacts. */ > + asm volatile("" : "+m" (psd_hdr)); > +#endi This seems odd and like a compiler bug, there must be a better solution.