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 EF6911DF970 for ; Mon, 24 Mar 2025 21:05:08 +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=1742850309; cv=none; b=BPnFyNhoXRbGW2zAsiX8VbOKiXXHpfL6A4g2N2OhhlKtydIOaa8sfj4QSC0oDdqC0eu3RpQvN+4WjBLOqzLvfvDGlc5woledx0Q6NJDwObLmPXQd2cmsvxIZLM1f1bwuJsOv0/yuQi1es0AarGxOh+IOVEf8pjnNCIg3DXqI5t4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742850309; c=relaxed/simple; bh=6XYWzjLJs77951EmKhNDpgpgXHAM0qPer/wp52gDja0=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=lle+7DlytG0z+cE71Uvpny9lJZV82MMFgrDgkYFchXZxTn8RjSikiN0ziHDnKs5iN7vp7qdXf5Yzng5mBmo6SAlCaHzs97rIJgU+tT5fr3VA10CNEpsGbXnaj5UxLMjqsfywLQbqPyOhWQmCVQHb5FaTaaWxVYBD/6v+HmoG350= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=I+S2xOtU; 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="I+S2xOtU" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1698FC4CEDD; Mon, 24 Mar 2025 21:05:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1742850308; bh=6XYWzjLJs77951EmKhNDpgpgXHAM0qPer/wp52gDja0=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=I+S2xOtU7JmHo8wYlQx587tv3V8Ns/rT5fgZF0WVR+0gG1AkFdtSvgZAcBd/jYfTl aMNmDNpyARY9YK9bs80Oq76wFvdhCDRsxTgWM4lpKQWTYxsWt3yFxWDuSMKcbBO4Xi o50qB1Lct+gkvAHFzLzMJpfta+OWjqp83cOyryQ2/PPW6gUjT+6liBNuUrfzn6w1Up V4vhlNaNoVpf2a2ypzhjRrg6y5qB0331jawRxWe0DLfkMXYdbb4BRjuyIzRndEV/ef mApdXKf15lZH36n42vAGq4j00RRZQ7lmUeHiKhVoc0nFE29yTF222UdPWUU2P/0kuQ ESI99sj4A+jxQ== Date: Mon, 24 Mar 2025 14:05:00 -0700 From: Jakub Kicinski To: Tobias Waldekranz Cc: Andrew Lunn , davem@davemloft.net, maxime.chevallier@bootlin.com, marcin.s.wojtas@gmail.com, linux@armlinux.org.uk, edumazet@google.com, pabeni@redhat.com, netdev@vger.kernel.org Subject: Re: [PATCH v2 net] net: mvpp2: Prevent parser TCAM memory corruption Message-ID: <20250324140500.43569cfb@kernel.org> In-Reply-To: <87msdaaeq7.fsf@waldekranz.com> References: <20250321090510.2914252-1-tobias@waldekranz.com> <3f2f66ae-b1ac-4c87-9215-c1b6949d62c4@lunn.ch> <87pliaa73x.fsf@waldekranz.com> <1eac57a5-eae6-4e2b-99d1-2b06c8628b1e@lunn.ch> <87msdaaeq7.fsf@waldekranz.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Mon, 24 Mar 2025 11:46:08 +0100 Tobias Waldekranz wrote: > I am not sure how to proceed. The documentation around how to use these > attributes is quite... sparse :) sparse locking assertions are unreliable at best. lockdep_assert_held() is probably best we can do?