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 C00691DF269 for ; Fri, 31 Oct 2025 18:30:30 +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=1761935430; cv=none; b=UtbsM+zBO4CGIjAtfc/aXTOuuNbiejRadMLCLqT+inJb18Q6DUIwCxqJMjC+3Tte1oKJenaJQMlP0vHJ7QojvVELG5g2b9IFiZS6iZ94OvocMgRmD1JTSSIk5N2g8zXTRd/U+HFhGPdM/BI8bjoVf9pRZdn1FCuTBcGMAKsWdW8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761935430; c=relaxed/simple; bh=S6ReYu2UchfiFNeCCH2HdJ8bcBBTNhM8zdgw1XyXVRw=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=a/VbX6sj3z/Y7dcqPJstkxNnZzhkZIJbwNU0AfOkTH72XZD/wTVs1vqjjZF84v8j/tHgeqztlZrITvfAFfrt8XKRM28byybcAS5AnvtR+EnhyUWieWe132T492sY1WmEhefQCKnP+bAJ1bYJS0njoqbrWElgWso6pkLWSNH3xiU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=G53+JbBN; 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="G53+JbBN" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 607CFC4CEE7; Fri, 31 Oct 2025 18:30:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1761935430; bh=S6ReYu2UchfiFNeCCH2HdJ8bcBBTNhM8zdgw1XyXVRw=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=G53+JbBNsXkzL39iXkyv4jH3EaOrUCt/m6TaeHMCm5i3y+YFFhQ0M9R+ZjMsEeINM dNNQ00U4xus2fVeQHJwkmCCC1pl/W2W8KbmOUXuxt0mLv9C9BXrz6+EvFeDu5S3SRR 2n86snzJrhF/dhz4qnYEXY6OBAPYiO4lzu9UTGdS+d66ucsu5aG2DLrgBnYJbBAMXo YN45Ft7ZysDIXh084Z7pLfiK9iizCI+9ZG6ehQTAmzJygShd9XFt/I3dR6SiMSuOeE qQh4rLUyseyPvp4+ganV7/LPKwyEI6XWcKmocq/fGNbbW1lkHv1fvLmnsWKhTDNa6G uAH9soBvpjPpw== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id AE1D63809A00; Fri, 31 Oct 2025 18:30:07 +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: arm64: fix BPF_ST into arena memory From: patchwork-bot+netdevbpf@kernel.org Message-Id: <176193540651.598404.1378163892417115487.git-patchwork-notify@kernel.org> Date: Fri, 31 Oct 2025 18:30:06 +0000 References: <20251030121715.55214-1-puranjay@kernel.org> In-Reply-To: <20251030121715.55214-1-puranjay@kernel.org> To: Puranjay Mohan Cc: bpf@vger.kernel.org, puranjay12@gmail.com, ast@kernel.org, andrii@kernel.org, daniel@iogearbox.net, martin.lau@kernel.org, eddyz87@gmail.com, xukuohai@huaweicloud.com, catalin.marinas@arm.com, will@kernel.org, kernel-team@meta.com Hello: This patch was applied to bpf/bpf.git (master) by Alexei Starovoitov : On Thu, 30 Oct 2025 12:17:14 +0000 you wrote: > The arm64 JIT supports BPF_ST with BPF_PROBE_MEM32 (arena) by using the > tmp2 register to hold the dst + arena_vm_base value and using tmp2 as the > new dst register. But this is broken because in case is_lsi_offset() > returns false the tmp2 will be clobbered by emit_a64_mov_i(1, tmp2, off, > ctx); and hence the emitted store instruction will be of the form: > > strb w10, [x11, x11] > > [...] Here is the summary with links: - [bpf-next,v2] bpf: arm64: fix BPF_ST into arena memory https://git.kernel.org/bpf/bpf/c/be708ed300e1 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html