Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934934Ab3JPOLs (ORCPT ); Wed, 16 Oct 2013 10:11:48 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:33269 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934563Ab3JPOLp (ORCPT ); Wed, 16 Oct 2013 10:11:45 -0400 Date: Wed, 16 Oct 2013 07:12:47 -0700 From: Greg KH To: "Shevchenko, Andriy" Cc: "Koul, Vinod" , "Williams, Dan J" , Youquan Song , "Song, Youquan" , "Westerberg, Mika" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH 1/2] dma: Add interface to calculate data transferred Message-ID: <20131016141247.GB17567@kroah.com> References: <1381527738-9339-1-git-send-email-youquan.song@intel.com> <1381527738-9339-2-git-send-email-youquan.song@intel.com> <20131011133343.GB32689@kroah.com> <20131013152633.GM2954@intel.com> <20131015183142.GA12494@linux-youquan.bj.intel.com> <20131016053857.GV2954@intel.com> <1381912571.29062.135.camel@smile> <20131016075702.GW2954@intel.com> <1381914782.29062.137.camel@smile> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1381914782.29062.137.camel@smile> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1113 Lines: 27 On Wed, Oct 16, 2013 at 09:13:20AM +0000, Shevchenko, Andriy wrote: > On Wed, 2013-10-16 at 13:27 +0530, Vinod Koul wrote: > > On Wed, Oct 16, 2013 at 02:06:30PM +0530, Shevchenko, Andriy wrote: > > > On Wed, 2013-10-16 at 11:08 +0530, Vinod Koul wrote: > > [] > > > > > Well am going to take it a bit further and ask you why do we need the > > > > /sys/class/dma? I have never used it for slave work. > > > > > > How user (who, f.e., would like to run dmatest) will know names of the > > > channels provided? > > Ok dmatest requires this, I overlooked that part > > > > > How could we see what channels of certain dma controller are requested / > > > busy from userspace? > > But do end user care or need to know about this? > > The idea is to have some test cases. So, end user probably doesn't > really need this. So could this just be debugfs files instead? -- 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/