From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: linux-kernel@vger.kernel.org, Vinod Koul <vinod.koul@intel.com>,
Dan Williams <djbw@fb.com>
Cc: Zhang Wei <zw@zh-kernel.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
linuxppc-dev@lists.ozlabs.org
Subject: [PATCH 05/12] fsldma: remove useless use of lock
Date: Mon, 27 May 2013 15:14:35 +0300 [thread overview]
Message-ID: <1369656882-25241-6-git-send-email-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <1369656882-25241-1-git-send-email-andriy.shevchenko@linux.intel.com>
Accordingly to dma_cookie_status() description locking is not required.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Li Yang <leoli@freescale.com>
Cc: Zhang Wei <zw@zh-kernel.org>
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);
}
/*----------------------------------------------------------------------------*/
--
1.8.2.rc0.22.gb3600c3
next prev parent reply other threads:[~2013-05-27 12:14 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-27 12:14 [PATCH 00/12] dma: various minor clean ups for slave drivers Andy Shevchenko
2013-05-27 12:14 ` Andy Shevchenko [this message]
2013-05-30 17:47 ` Vinod Koul
2013-05-30 18:32 ` Andy Shevchenko
2013-07-15 9:37 ` Vinod Koul
2013-07-15 10:21 ` Andy Shevchenko
2013-07-15 9:59 ` Vinod Koul
2013-06-01 0:09 ` Dan Williams
2013-07-15 9:33 ` Vinod Koul
2013-07-10 7:54 ` Andy Shevchenko
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