From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B1320634 for ; Wed, 8 Nov 2023 00:40:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="nnFEbLa1" Received: by smtp.kernel.org (Postfix) with ESMTPS id 13B20C433C9; Wed, 8 Nov 2023 00:40:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1699404025; bh=7Ev7zIpBR2JbyftwmXueiakT202KuLx3+6E9ATV/2pU=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=nnFEbLa1epH7EYlBPCgH7Ca6G+vuyrg3dHusnnO0lTL3sD+snr7MycfMZCWIRDBV7 YiT8njbEV01HyyNxA6QtQ+9yI+OeOh1v2rdV6w+VTL6hB+ZOqs6HWaMXgklP3TEISa WlGfZYt5jMEgMI1xeseNU1zmpcfq4iOKghQKGtmRBFBOY55mCmum7yTQXxvUZdDd13 E5COLWPGolQvOUOSVzjk7KwGZO/ig+osqLbnerHHds/wiObVJblyUKOwfrl7H8fxNC dusR9Z/TmpL1b6L6Z2QnUz2lB+lgjE06cvhRsw9FziBhQ/BaZjVf0uUPZtMgNJjCKj CC62vkDORsTtw== Received: from aws-us-west-2-korg-oddjob-1.ci.codeaurora.org (localhost.localdomain [127.0.0.1]) by aws-us-west-2-korg-oddjob-1.ci.codeaurora.org (Postfix) with ESMTP id EBEE0C395FC; Wed, 8 Nov 2023 00:40:24 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH bpf-next v3] libbpf: Fix potential uninitialized tail padding with LIBBPF_OPTS_RESET From: patchwork-bot+netdevbpf@kernel.org Message-Id: <169940402496.4503.7316199244566854205.git-patchwork-notify@kernel.org> Date: Wed, 08 Nov 2023 00:40:24 +0000 References: <20231107201511.2548645-1-yonghong.song@linux.dev> In-Reply-To: <20231107201511.2548645-1-yonghong.song@linux.dev> To: Yonghong Song Cc: bpf@vger.kernel.org, ast@kernel.org, andrii@kernel.org, daniel@iogearbox.net, kernel-team@fb.com, martin.lau@kernel.org Hello: This patch was applied to bpf/bpf-next.git (master) by Andrii Nakryiko : On Tue, 7 Nov 2023 12:15:11 -0800 you wrote: > Martin reported that there is a libbpf complaining of non-zero-value tail > padding with LIBBPF_OPTS_RESET macro if struct bpf_netkit_opts is modified > to have a 4-byte tail padding. This only happens to clang compiler. > The commend line is: ./test_progs -t tc_netkit_multi_links > Martin and I did some investigation and found this indeed the case and > the following are the investigation details. > > [...] Here is the summary with links: - [bpf-next,v3] libbpf: Fix potential uninitialized tail padding with LIBBPF_OPTS_RESET https://git.kernel.org/bpf/bpf-next/c/9ce5a7a0c8bf You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html