From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933859AbdA0QfE (ORCPT ); Fri, 27 Jan 2017 11:35:04 -0500 Received: from mail.free-electrons.com ([62.4.15.54]:57593 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932801AbdA0Qew (ORCPT ); Fri, 27 Jan 2017 11:34:52 -0500 From: Boris Brezillon To: Boris Brezillon , Richard Weinberger , linux-mtd@lists.infradead.org, Linus Walleij , Alexandre Courbot , linux-gpio@vger.kernel.org, Vinod Koul , Dan Williams , dmaengine@vger.kernel.org, Nicolas Ferre , Alexandre Belloni , Wenyou Yang , Josh Wu , Haavard Skinnemoen , Hans-Christian Egtvedt , linux-kernel@vger.kernel.org Cc: David Woodhouse , Brian Norris , Marek Vasut , Cyrille Pitchen , linux-arm-kernel@lists.infradead.org Subject: [PATCH 2/5] dmaengine: Provide a wrapper for memcpy operations Date: Fri, 27 Jan 2017 17:34:03 +0100 Message-Id: <1485534846-28111-3-git-send-email-boris.brezillon@free-electrons.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1485534846-28111-1-git-send-email-boris.brezillon@free-electrons.com> References: <1485534846-28111-1-git-send-email-boris.brezillon@free-electrons.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Almost all ->device_prep_dma_xx() methods have a wrapper defined in dmaengine.h. Add one for ->device_prep_dma_memcpy(). Signed-off-by: Boris Brezillon --- include/linux/dmaengine.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index feee6ec6a13b..533680860865 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -894,6 +894,17 @@ static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_memset( len, flags); } +static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_memcpy( + struct dma_chan *chan, dma_addr_t dest, dma_addr_t src, + size_t len, unsigned long flags) +{ + if (!chan || !chan->device || !chan->device->device_prep_dma_memcpy) + return NULL; + + return chan->device->device_prep_dma_memcpy(chan, dest, src, + len, flags); +} + static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_sg( struct dma_chan *chan, struct scatterlist *dst_sg, unsigned int dst_nents, -- 2.7.4