From mboxrd@z Thu Jan 1 00:00:00 1970 From: Laxman Dewangan Subject: Re: [PATCH 01/11] dma: imx-sdma: make channel0 operations atomic Date: Fri, 27 Apr 2012 18:31:13 +0530 Message-ID: <4F9A9899.2060306@nvidia.com> References: <1335510185-7906-1-git-send-email-richard.zhao@freescale.com> <1335510185-7906-2-git-send-email-richard.zhao@freescale.com> <1335514900.31825.132.camel@vkoul-udesk3> <20120427084109.GO28063@b20223-02.ap.freescale.net> <1335522130.31825.135.camel@vkoul-udesk3> <20120427112655.GS28063@b20223-02.ap.freescale.net> <20120427113335.GM24211@n2100.arm.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20120427113335.GM24211-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org> Sender: linux-i2c-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Russell King - ARM Linux Cc: Richard Zhao , Vinod Koul , "alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org" , "ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org" , "broonie-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org" , "w.sang-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org" , "linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org" , "dan.j.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org" , "shawn.guo-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org" , "lrg-l0cyMroinI0@public.gmane.org" , "linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org" , =?ISO-8859-1?Q?Lothar_Wa=DFmann?= List-Id: linux-i2c@vger.kernel.org On Friday 27 April 2012 05:03 PM, Russell King - ARM Linux wrote: > On Fri, Apr 27, 2012 at 07:26:56PM +0800, Richard Zhao wrote: >> Sure, I mean, can you doc in include/linux/dmaengine.h that >> dmaengine_prep_xxx may sleep? > Incorrect. They may _not_ sleep. But I have seen that we are using the kzalloc in the dmaengine_prep_xxx and kzalloc is sleeping call.