From: Fuqian Huang <huangfq.daxian@gmail.com>
Cc: Fabio Estevam <festevam@gmail.com>,
Sascha Hauer <s.hauer@pengutronix.de>,
linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org,
Vinod Koul <vkoul@kernel.org>, NXP Linux Team <linux-imx@nxp.com>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fuqian Huang <huangfq.daxian@gmail.com>,
Dan Williams <dan.j.williams@intel.com>,
Shawn Guo <shawnguo@kernel.org>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH 12/87] dma: imx-sdma: Remove call to memset after dma_alloc_coherent
Date: Fri, 28 Jun 2019 01:35:35 +0800 [thread overview]
Message-ID: <20190627173536.2457-1-huangfq.daxian@gmail.com> (raw)
In commit af7ddd8a627c
("Merge tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mapping"),
dma_alloc_coherent has already zeroed the memory.
So memset is not needed.
Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
---
drivers/dma/imx-sdma.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index 99d9f431ae2c..54d86359bdf8 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -1886,10 +1886,6 @@ static int sdma_init(struct sdma_engine *sdma)
sdma->context_phys = ccb_phys +
MAX_DMA_CHANNELS * sizeof (struct sdma_channel_control);
- /* Zero-out the CCB structures array just allocated */
- memset(sdma->channel_control, 0,
- MAX_DMA_CHANNELS * sizeof (struct sdma_channel_control));
-
/* disable all channels */
for (i = 0; i < sdma->drvdata->num_events; i++)
writel_relaxed(0, sdma->regs + chnenbl_ofs(sdma, i));
--
2.11.0
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next reply other threads:[~2019-06-27 17:35 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-27 17:35 Fuqian Huang [this message]
2019-07-01 4:54 ` [PATCH 12/87] dma: imx-sdma: Remove call to memset after dma_alloc_coherent Vinod Koul
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