From patchwork Thu Apr 10 07:10:01 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: hongbo.zhang@freescale.com X-Patchwork-Id: 3960131 X-Patchwork-Delegate: vinod.koul@intel.com Return-Path: X-Original-To: patchwork-dmaengine@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 32D30BFF02 for ; Thu, 10 Apr 2014 07:12:48 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 5E02320629 for ; Thu, 10 Apr 2014 07:12:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 585A520513 for ; Thu, 10 Apr 2014 07:12:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934764AbaDJHK4 (ORCPT ); Thu, 10 Apr 2014 03:10:56 -0400 Received: from ch1ehsobe002.messaging.microsoft.com ([216.32.181.182]:14907 "EHLO ch1outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934784AbaDJHKx (ORCPT ); Thu, 10 Apr 2014 03:10:53 -0400 Received: from mail16-ch1-R.bigfish.com (10.43.68.232) by CH1EHSOBE013.bigfish.com (10.43.70.63) with Microsoft SMTP Server id 14.1.225.22; Thu, 10 Apr 2014 07:10:29 +0000 Received: from mail16-ch1 (localhost [127.0.0.1]) by mail16-ch1-R.bigfish.com (Postfix) with ESMTP id AF3AB20070D; Thu, 10 Apr 2014 07:10:29 +0000 (UTC) X-Forefront-Antispam-Report: CIP:70.37.183.190; KIP:(null); UIP:(null); IPV:NLI; H:mail.freescale.net; RD:none; EFVD:NLI X-SpamScore: 0 X-BigFish: VS0(zze0eahzz1f42h1ee6h1de0h1fdah2073h2146h1202h1e76h2189h1d1ah1d2ah21bch21a7h1fc6h208chzdchz1de098h8275bh1de097hz2dh2a8h839hd24he5bhf0ah1288h12a5h12a9h12bdh12e5h137ah139eh13b6h1441h1504h1537h162dh1631h1758h1898h18e1h1946h19b5h1ad9h1b0ah1b2fh2222h224fh1fb3h1d0ch1d2eh1d3fh1dfeh1dffh1e23h1fe8h1ff5h2218h2216h226dh22d0h24afh2327h2336h2438h2461h2487h24d7h2516h2545h255eh25cch25f6h2605h268bh26d3h1155h) Received: from mail16-ch1 (localhost.localdomain [127.0.0.1]) by mail16-ch1 (MessageSwitch) id 139711382894707_10212; Thu, 10 Apr 2014 07:10:28 +0000 (UTC) Received: from CH1EHSMHS027.bigfish.com (snatpool1.int.messaging.microsoft.com [10.43.68.250]) by mail16-ch1.bigfish.com (Postfix) with ESMTP id 10E684C0109; Thu, 10 Apr 2014 07:10:28 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by CH1EHSMHS027.bigfish.com (10.43.70.27) with Microsoft SMTP Server (TLS) id 14.16.227.3; Thu, 10 Apr 2014 07:10:26 +0000 Received: from az84smr01.freescale.net (10.64.34.197) by 039-SN1MMR1-005.039d.mgd.msft.net (10.84.1.17) with Microsoft SMTP Server (TLS) id 14.3.174.2; Thu, 10 Apr 2014 07:10:47 +0000 Received: from hongbo.ap.freescale.net (b45939-01.ap.freescale.net [10.193.20.36]) by az84smr01.freescale.net (8.14.3/8.14.0) with ESMTP id s3A7A580014851; Thu, 10 Apr 2014 00:10:45 -0700 From: To: , , CC: , , , , Hongbo Zhang Subject: [PATCH v3 4/8] DMA: Freescale: add fsl_dma_free_descriptor() to reduce code duplication Date: Thu, 10 Apr 2014 15:10:01 +0800 Message-ID: <1397113805-24171-5-git-send-email-hongbo.zhang@freescale.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1397113805-24171-1-git-send-email-hongbo.zhang@freescale.com> References: <1397113805-24171-1-git-send-email-hongbo.zhang@freescale.com> MIME-Version: 1.0 X-OriginatorOrg: freescale.com X-FOPE-CONNECTOR: Id%0$Dn%*$RO%0$TLS%0$FQDN%$TlsDn% X-FOPE-CONNECTOR: Id%0$Dn%FREESCALE.MAIL.ONMICROSOFT.COM$RO%1$TLS%0$FQDN%$TlsDn% Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org X-Spam-Status: No, score=-6.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY, UNRESOLVED_TEMPLATE autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Hongbo Zhang There are several places where descriptors are freed using identical code. This patch puts this code into a function to reduce code duplication. Signed-off-by: Hongbo Zhang Signed-off-by: Qiang Liu --- drivers/dma/fsldma.c | 30 ++++++++++++++++++------------ 1 file changed, 18 insertions(+), 12 deletions(-) diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index b71cc04..b5a0ffa 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -418,6 +418,19 @@ static dma_cookie_t fsl_dma_tx_submit(struct dma_async_tx_descriptor *tx) } /** + * fsl_dma_free_descriptor - Free descriptor from channel's DMA pool. + * @chan : Freescale DMA channel + * @desc: descriptor to be freed + */ +static void fsl_dma_free_descriptor(struct fsldma_chan *chan, + struct fsl_desc_sw *desc) +{ + list_del(&desc->node); + chan_dbg(chan, "LD %p free\n", desc); + dma_pool_free(chan->desc_pool, desc, desc->async_tx.phys); +} + +/** * fsl_dma_alloc_descriptor - Allocate descriptor from channel's DMA pool. * @chan : Freescale DMA channel * @@ -489,11 +502,8 @@ static void fsldma_free_desc_list(struct fsldma_chan *chan, { struct fsl_desc_sw *desc, *_desc; - list_for_each_entry_safe(desc, _desc, list, node) { - list_del(&desc->node); - chan_dbg(chan, "LD %p free\n", desc); - dma_pool_free(chan->desc_pool, desc, desc->async_tx.phys); - } + list_for_each_entry_safe(desc, _desc, list, node) + fsl_dma_free_descriptor(chan, desc); } static void fsldma_free_desc_list_reverse(struct fsldma_chan *chan, @@ -501,11 +511,8 @@ static void fsldma_free_desc_list_reverse(struct fsldma_chan *chan, { struct fsl_desc_sw *desc, *_desc; - list_for_each_entry_safe_reverse(desc, _desc, list, node) { - list_del(&desc->node); - chan_dbg(chan, "LD %p free\n", desc); - dma_pool_free(chan->desc_pool, desc, desc->async_tx.phys); - } + list_for_each_entry_safe_reverse(desc, _desc, list, node) + fsl_dma_free_descriptor(chan, desc); } /** @@ -819,8 +826,7 @@ static void fsldma_cleanup_descriptor(struct fsldma_chan *chan, dma_run_dependencies(txd); dma_descriptor_unmap(txd); - chan_dbg(chan, "LD %p free\n", desc); - dma_pool_free(chan->desc_pool, desc, txd->phys); + fsl_dma_free_descriptor(chan, desc); } /**