Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753331AbaATNEu (ORCPT ); Mon, 20 Jan 2014 08:04:50 -0500 Received: from mga02.intel.com ([134.134.136.20]:54947 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751627AbaATNEt (ORCPT ); Mon, 20 Jan 2014 08:04:49 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.95,690,1384329600"; d="scan'208";a="441651420" Date: Mon, 20 Jan 2014 17:33:01 +0530 From: Vinod Koul To: Russell King - ARM Linux Cc: Jonas Jensen , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, arm@kernel.org, dan.j.williams@intel.com Subject: Re: [PATCH] dma: fix vchan_cookie_complete() debug print Message-ID: <20140120120301.GE26823@intel.com> References: <1386344529-25617-1-git-send-email-jonas.jensen@gmail.com> <20140120095917.GZ26823@intel.com> <20140120112822.GA15937@n2100.arm.linux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140120112822.GA15937@n2100.arm.linux.org.uk> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jan 20, 2014 at 11:28:22AM +0000, Russell King - ARM Linux wrote: > On Mon, Jan 20, 2014 at 03:29:17PM +0530, Vinod Koul wrote: > > On Fri, Dec 06, 2013 at 04:42:09PM +0100, Jonas Jensen wrote: > > > vd->tx.cookie is set zero on dma_cookie_complete(), > > > save to local before printing it. > > > > > > Signed-off-by: Jonas Jensen > > > --- > > > > > > Notes: > > > dev_vdbg() could also be moved to happen earlier, what do you prefer? > > This would be preferred IMHO. Also pls cc dmaengine@vger on this > > I prefer this version - it means that the verbose debug printk doesn't > impact the completion timing when printk is expensive (eg, because its > outputting via a serial port.) But if you know your printk is costly, do you want to enable these? -- ~Vinod -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/