From patchwork Mon May 27 12:14:35 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 246589 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from ozlabs.org (localhost [IPv6:::1]) by ozlabs.org (Postfix) with ESMTP id D91442C0547 for ; Mon, 27 May 2013 22:15:55 +1000 (EST) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by ozlabs.org (Postfix) with ESMTP id C33632C01FC for ; Mon, 27 May 2013 22:14:52 +1000 (EST) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga102.fm.intel.com with ESMTP; 27 May 2013 05:15:05 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.87,750,1363158000"; d="scan'208";a="343975688" Received: from smile.fi.intel.com (HELO smile) ([10.237.72.173]) by fmsmga002.fm.intel.com with ESMTP; 27 May 2013 05:14:47 -0700 Received: from andy by smile with local (Exim 4.80) (envelope-from ) id 1UgwK5-0006aI-E8; Mon, 27 May 2013 15:14:45 +0300 From: Andy Shevchenko To: linux-kernel@vger.kernel.org, Vinod Koul , Dan Williams Subject: [PATCH 05/12] fsldma: remove useless use of lock Date: Mon, 27 May 2013 15:14:35 +0300 Message-Id: <1369656882-25241-6-git-send-email-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 1.8.2.rc0.22.gb3600c3 In-Reply-To: <1369656882-25241-1-git-send-email-andriy.shevchenko@linux.intel.com> References: <1369656882-25241-1-git-send-email-andriy.shevchenko@linux.intel.com> Cc: Zhang Wei , Andy Shevchenko , linuxppc-dev@lists.ozlabs.org X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Accordingly to dma_cookie_status() description locking is not required. Signed-off-by: Andy Shevchenko Cc: Li Yang Cc: Zhang Wei Cc: linuxppc-dev@lists.ozlabs.org --- drivers/dma/fsldma.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index 49e8fbd..b3f3e90 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -979,15 +979,7 @@ static enum dma_status fsl_tx_status(struct dma_chan *dchan, dma_cookie_t cookie, struct dma_tx_state *txstate) { - struct fsldma_chan *chan = to_fsl_chan(dchan); - enum dma_status ret; - unsigned long flags; - - spin_lock_irqsave(&chan->desc_lock, flags); - ret = dma_cookie_status(dchan, cookie, txstate); - spin_unlock_irqrestore(&chan->desc_lock, flags); - - return ret; + return dma_cookie_status(dchan, cookie, txstate); } /*----------------------------------------------------------------------------*/