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Thu, 08 May 2025 05:53:45 -0700 (PDT) Date: Thu, 8 May 2025 14:53:43 +0200 From: Corentin Labbe To: Herbert Xu Cc: Klaus Kudielka , regressions@lists.linux.dev, linux-kernel@vger.kernel.org, Linux Crypto Mailing List , Boris Brezillon , EBALARD Arnaud , Romain Perier Subject: Re: [v3 PATCH] crypto: marvell/cesa - Do not chain submitted requests Message-ID: References: <15fadc356b73a1e8e24183f284b5c0a44a53e679.camel@gmail.com> <5db212655dc98945fa3f529925821879a03ff554.camel@gmail.com> Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Le Thu, May 08, 2025 at 01:22:16PM +0800, Herbert Xu a écrit : > v3 simplifies it a little bit: > > ---8<--- > This driver tries to chain requests together before submitting them > to hardware in order to reduce completion interrupts. > > However, it even extends chains that have already been submitted > to hardware. This is dangerous because there is no way of knowing > whether the hardware has already read the DMA memory in question > or not. > > Fix this by splitting the chain list into two. One for submitted > requests and one for requests that have not yet been submitted. > Only extend the latter. > The board do not panic anymore, but have still selftest errors: See the full boot log at kernel.montjoie.ovh/477935.log Regards