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 2D00021373 for ; Wed, 8 May 2024 22:10:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715206230; cv=none; b=NZir3rdNaqVRYnFEm8D4mq5FiDSm9ZMfIAYIWq9fO3Ca/atwadFwem3mVhd7nxfluYb5wxVmqvL/XGtklSCiDQ25ZuX2g2XeAOygr5iyA8JWAJiBbq2b8ECpXdYhCbwaVcBwj0H4Y70F4WHK3Z2vVGi6TsUXmpYWT5qeKxFZuBI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715206230; c=relaxed/simple; bh=Qnd9Nafpcy5kigH6dScu1p/UUtXRETHNBuiuhYc5qc4=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=a1JRB//mNPyazdoND8cyhowxxNqGW+AafvKrZBwBq7MRsalWfae1tdRSfTZ+FU9qD8eL5TE+69/QZwjmyzzcAECjqvjgWQFjW5SzazccsDZdyzW9wnXpzerBPegUPue56LxmiQsZlA5mTn93rtI1ysewQk2Zy0WCRxMVAm0DVK0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Pk9ViNoo; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Pk9ViNoo" Received: by smtp.kernel.org (Postfix) with ESMTPS id A31E2C2BD11; Wed, 8 May 2024 22:10:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715206229; bh=Qnd9Nafpcy5kigH6dScu1p/UUtXRETHNBuiuhYc5qc4=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=Pk9ViNooKP3MaicZJex5rIdgfTF+xIJvnN3gtW0SxRKE8PqEhBkorqzZ0kba/whMx GP6ovZKWSbPG1QFC83MwBpUFYI34SqI1X4JStR+kcWcKEHoN1HuJdfhREnGOZeGZP/ vyBIIeJQ6XyQEW5M+3uUkoLLjtcN9VR863zlF+PolAEgyGVElViCOXxUH8q5BPKCaY fJKbtCdu6WDxhb5eVlybPk1YofkyrsOHp9aQJSU9gR7JafxqsC9VOOeIM+ogvqT8Aj OPhRNz0VV27Wrch0ySDL79Qb33uudfGN+XgB39ktCTpAJDs+tIy7wd4XTMAf2fcXFC 3pPSZb0hlVFPQ== 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 8E0D3C43332; Wed, 8 May 2024 22:10:29 +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 V2] bpf: avoid uninitialized value in BPF_CORE_READ_BITFIELD From: patchwork-bot+netdevbpf@kernel.org Message-Id: <171520622957.7593.2662904887895439011.git-patchwork-notify@kernel.org> Date: Wed, 08 May 2024 22:10:29 +0000 References: <20240508101313.16662-1-jose.marchesi@oracle.com> In-Reply-To: <20240508101313.16662-1-jose.marchesi@oracle.com> To: Jose E. Marchesi Cc: bpf@vger.kernel.org, david.faust@oracle.com, cupertino.miranda@oracle.com, eddyz87@gmail.com, yonghong.song@linux.dev, andrii.nakryiko@gmail.com Hello: This patch was applied to bpf/bpf-next.git (master) by Andrii Nakryiko : On Wed, 8 May 2024 12:13:13 +0200 you wrote: > [Changes from V1: > - Use a default branch in the switch statement to initialize `val'.] > > GCC warns that `val' may be used uninitialized in the > BPF_CRE_READ_BITFIELD macro, defined in bpf_core_read.h as: > > [...] > unsigned long long val; \ > [...] \ > switch (__CORE_RELO(s, field, BYTE_SIZE)) { \ > case 1: val = *(const unsigned char *)p; break; \ > case 2: val = *(const unsigned short *)p; break; \ > case 4: val = *(const unsigned int *)p; break; \ > case 8: val = *(const unsigned long long *)p; break; \ > } \ > [...] > val; \ > } \ > > [...] Here is the summary with links: - [bpf-next,V2] bpf: avoid uninitialized value in BPF_CORE_READ_BITFIELD https://git.kernel.org/bpf/bpf-next/c/009367099eb6 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html