From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from am1outboundpool.messaging.microsoft.com (am1ehsobe005.messaging.microsoft.com [213.199.154.208]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (Client CN "mail.global.frontbridge.com", Issuer "Microsoft Secure Server Authority" (not verified)) by ozlabs.org (Postfix) with ESMTPS id 1FAFE2C0093 for ; Tue, 31 Jul 2012 03:50:43 +1000 (EST) Message-ID: <5016C8F9.7070801@freescale.com> Date: Mon, 30 Jul 2012 12:48:41 -0500 From: Timur Tabi MIME-Version: 1.0 To: Subject: Re: [linuxppc-release] [PATCH v4 7/7] fsl-dma: add memcpy self test interface References: <1343380616-12126-1-git-send-email-qiang.liu@freescale.com> In-Reply-To: <1343380616-12126-1-git-send-email-qiang.liu@freescale.com> Content-Type: text/plain; charset="ISO-8859-1" Cc: "Ira W. Snyder" , Vinod Koul , herbert@gondor.hengli.com.au, linux-crypto@vger.kernel.org, Dan Williams , linuxppc-dev@lists.ozlabs.org, davem@davemloft.net List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , qiang.liu@freescale.com wrote: > > Add memory copy self test when probe device, fsl-dma will be disabled > if self test failed. Is this a real problem that can occur? The DMA driver used to have a self-test, but I removed it a long time ago because it was pointless. I don't see why we need to add another one back in. -- Timur Tabi Linux kernel developer at Freescale