Received: by 2002:ac0:a582:0:0:0:0:0 with SMTP id m2-v6csp1426008imm; Tue, 2 Oct 2018 08:02:59 -0700 (PDT) X-Google-Smtp-Source: ACcGV60dgqndTWjn/rJRClDQN6a9+xM1dGGSg2l5DlUu3PxdxIGFlcg7UXM/dJ2UCd5uW4liOgEU X-Received: by 2002:a63:9a19:: with SMTP id o25-v6mr8321464pge.440.1538492579033; Tue, 02 Oct 2018 08:02:59 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1538492579; cv=none; d=google.com; s=arc-20160816; b=LQWjfzbMNWeq6qb4cA9pDXxckn1vW/u2V43tVCHGDqgXBUPLbJyM1hVrq32SYw7oH8 sy7DYaibd62xdd7itzIwDJQeAVI7tPcW449M0kkJHKVc28sslig8ogMYOSNNjWjQmsK2 0YeEzFIjYGWOEW86c9L/NRBZA2Er1BzjtStrke0cg1NzAAbcekeYZYny3obR+f0mr7Jg YMqA3mpDR1/bHrelJHtbRxMDdaTfC3NrWFagRV9Il4M6DZ2ofFfpjy1oGzIHweZaIo9h zC2B+qF0937plg7/O8WWSBxwxGPsho5D7xrA8yPgM+PdnrsSNsKXOSM30kYF/f/6rzSe Q+pg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature; bh=4bZhRGI76E6eYUnM5OfYTN4xNX69O+Jyhd+HjSKGpWE=; b=bLdpjc+064RAVhjkSwTOPV4Pm7AjdCM2vhDTNST+Nf4vruxgHHfDYx7nruGs3ZnMQa yRvCrwlfkO6OvLpzU2i3qJlkaLRJiBhil34zLp0nu29wsvqWERB/uzj0wE1SzqIkp2Kr Aw9Q9X922Z3GnszK9atiXhHWYyikjihLN3cUlglo4vpy2AIExKNy6VN+p7k88mNWtVBi IEqIX/LinuLengCdDFYXD8DE3iUcA6HtQDkRh0ME09oHx17w960O8R0YqG4v572KUcnN hmUzgpnD+2wGy7Q2xAaWz0Qr+9hC5kHvf0TxxEjTeXNgL0SWS3JX6guEzCcguMMaYtw4 QDAA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=ynOy+GQG; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id x12-v6si15115369pgg.118.2018.10.02.08.02.43; Tue, 02 Oct 2018 08:02:58 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=ynOy+GQG; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729026AbeJBVq2 (ORCPT + 99 others); Tue, 2 Oct 2018 17:46:28 -0400 Received: from mail.kernel.org ([198.145.29.99]:60068 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727970AbeJBVq2 (ORCPT ); Tue, 2 Oct 2018 17:46:28 -0400 Received: from localhost (unknown [171.76.113.63]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4BBA420666; Tue, 2 Oct 2018 15:02:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1538492558; bh=XzMW2mi9ykGzG1GqBVcER0tbk+5fM/RRh3d3vc7FVAI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=ynOy+GQG2F2GW8YCvYZPqOTGITbHi9btxemZb7ckI+u8dxXzdohOE8dknGIKk6Odr 80nqAW2B3y119m8lPIZ31lAcgQQaWLXQ4qOVeL9MlnFhyhasOSMNO5IRgkFZ+XrTjb q2pxPzSYqKdlmG7zM9EYERgbOq+1T1944igoFtBI= Date: Tue, 2 Oct 2018 20:32:29 +0530 From: Vinod To: Pierre-Yves MORDRET Cc: Dan Williams , Maxime Coquelin , Alexandre Torgue , dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v1 1/1] dmaengine: stm32-dma: check whether length is aligned on FIFO threshold Message-ID: <20181002150229.GI19792@vkoul-mobl> References: <1536651076-17005-1-git-send-email-pierre-yves.mordret@st.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1536651076-17005-1-git-send-email-pierre-yves.mordret@st.com> User-Agent: Mutt/1.9.2 (2017-12-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11-09-18, 09:31, Pierre-Yves MORDRET wrote: > When a period length is not multiple of FIFO some data may be stuck > within FIFO. > > Burst/FIFO Threshold/Period or buffer length check has to be hardened > > In any case DMA will grant any request from client but will degraded > any parameters whether awkward. Applied, thanks -- ~Vinod