From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 70AC0CD5BAB for ; Sun, 24 May 2026 20:49:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=SvFC+azNSDIKH1JXxHAf/KqgxPmhn9ag8hvuKL1foNs=; b=A+uFdivDgAhEwve5njNoiWgsWP ikD8/d3ZT6SvNV6DEDuc2Z4lYBF2D7mGBHYTKSCs7fuXzL6QccqRCA0PtuWiVZ+OT7FcPf8xQPjQc 1buiiJqp0IVWMb0YIQA6cA9mRMR8ManEg2MpayggQyBCZ4TyIgHYMqx5Hv6CKuEjZHPmMH6wj2g6P c8pPoefBUXAaF0PWJN3Gq9FnF/C22qK+m7LFPJfF0hvkHmybmJaj5THoZ5Ynh0CecN9V+Vzwh0o6M zp/3XxejTH6SaLpybQUWmH8h2LCw1MbbBOqB5U4V+sDP2yDjnIbc5iW/DMu0+bLU0nDb3g7CuRXoM Ia492ftg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wRFlH-0000000FcVx-2J1b; Sun, 24 May 2026 20:49:27 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wRFlG-0000000FcVl-1QZt for linux-arm-kernel@lists.infradead.org; Sun, 24 May 2026 20:49:26 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 7B28B601E3; Sun, 24 May 2026 20:49:25 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5EE921F000E9; Sun, 24 May 2026 20:49:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1779655765; bh=SvFC+azNSDIKH1JXxHAf/KqgxPmhn9ag8hvuKL1foNs=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=P1TUsjwIBYKCMnwkSwDiyEF5pn3BuYlptPZEjNPwbze+umSA1x7/1EpW/DxDNxdxN hWN3I4mEaRTvJwdDA89F077EbnmLYC4ffFITQZqT56xYldvGs1QuqpB/TeJ8IbhKJb TsfkBslAS6whFYIRgXMrIYCGaVbwcq2RHndOqmLP0r7Eu5jcaG6pMPP3sM6iAmfxCL G6ORx4yMPBU5jAesSFupJmILzCBZMyt0G42wJ6Hp5AQDED4c98frirIZahAsiKjT+Z YXkR7WIsVKO5I9sztPCBXTUOkpbi/qV66DKHN6gnXNC5bOqR0dcz5nEjJZjFaxlU57 GM7Z4bf2Bl1sg== Date: Sun, 24 May 2026 15:49:21 -0500 From: Eric Biggers To: Bartosz Golaszewski Cc: Vinod Koul , Jonathan Corbet , Thara Gopinath , Herbert Xu , "David S. Miller" , Udit Tiwari , Md Sadre Alam , Dmitry Baryshkov , Manivannan Sadhasivam , Stephan Gerhold , Bjorn Andersson , Peter Ujfalusi , Michal Simek , Frank Li , Andy Gross , Neil Armstrong , dmaengine@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-crypto@vger.kernel.org, linux-arm-kernel@lists.infradead.org, brgl@kernel.org, Bartosz Golaszewski , Dmitry Baryshkov , Konrad Dybcio Subject: Re: [PATCH v18 00/14] crypto/dmaengine: qce: introduce BAM locking and use DMA for register I/O Message-ID: <20260524204921.GC110177@quark> References: <20260522-qcom-qce-cmd-descr-v18-0-99103926bafc@oss.qualcomm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260522-qcom-qce-cmd-descr-v18-0-99103926bafc@oss.qualcomm.com> X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, May 22, 2026 at 03:39:53PM +0200, Bartosz Golaszewski wrote: > Currently the QCE crypto driver accesses the crypto engine registers > directly via CPU. Trust Zone may perform crypto operations simultaneously > resulting in a race condition. So this driver is just critically broken currently? Yet it's still not marked as BROKEN? What are we even doing? - Eric