linux-kernel - [PATCH -next 10/26] broadcom: Use dma_zalloc

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Message-Id: <6b329f3d7f7b5f14d19304178bc95f9081b07bf5.1402863905.git.joe@perches.com>
Date:	Sun, 15 Jun 2014 13:37:39 -0700
From:	Joe Perches <joe@...ches.com>
To:	linux-kernel@...r.kernel.org
Cc:	netdev@...r.kernel.org
Subject: [PATCH -next 10/26] broadcom: Use dma_zalloc_coherent

Use the zeroing function instead of dma_alloc_coherent & memset(,0,)

Signed-off-by: Joe Perches <joe@...ches.com>
---
 drivers/net/ethernet/broadcom/bcm63xx_enet.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.c b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
index 3e8d1a8..8c61c81 100644
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
@@ -2165,27 +2165,25 @@ static int bcm_enetsw_open(struct net_device *dev)
 
 	/* allocate rx dma ring */
 	size = priv->rx_ring_size * sizeof(struct bcm_enet_desc);
-	p = dma_alloc_coherent(kdev, size, &priv->rx_desc_dma, GFP_KERNEL);
+	p = dma_zalloc_coherent(kdev, size, &priv->rx_desc_dma, GFP_KERNEL);
 	if (!p) {
 		dev_err(kdev, "cannot allocate rx ring %u\n", size);
 		ret = -ENOMEM;
 		goto out_freeirq_tx;
 	}
 
-	memset(p, 0, size);
 	priv->rx_desc_alloc_size = size;
 	priv->rx_desc_cpu = p;
 
 	/* allocate tx dma ring */
 	size = priv->tx_ring_size * sizeof(struct bcm_enet_desc);
-	p = dma_alloc_coherent(kdev, size, &priv->tx_desc_dma, GFP_KERNEL);
+	p = dma_zalloc_coherent(kdev, size, &priv->tx_desc_dma, GFP_KERNEL);
 	if (!p) {
 		dev_err(kdev, "cannot allocate tx ring\n");
 		ret = -ENOMEM;
 		goto out_free_rx_ring;
 	}
 
-	memset(p, 0, size);
 	priv->tx_desc_alloc_size = size;
 	priv->tx_desc_cpu = p;
 
-- 
1.8.1.2.459.gbcd45b4.dirty

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