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 X-Spam-Level: X-Spam-Status: No, score=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5EB9BC43143 for ; Tue, 2 Oct 2018 15:02:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 163032083F for ; Tue, 2 Oct 2018 15:02:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="ynOy+GQG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 163032083F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729077AbeJBVq2 (ORCPT ); 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