netdev - [PATCH] ixgb: replace dma_alloc_coherent + memset with dma_zalloc

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Message-Id: <20180824165232.21585-1-colin.king@canonical.com>
Date:   Fri, 24 Aug 2018 17:52:32 +0100
From:   Colin King <colin.king@...onical.com>
To:     Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
        "David S . Miller" <davem@...emloft.net>,
        intel-wired-lan@...ts.osuosl.org, netdev@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ixgb: replace dma_alloc_coherent + memset with dma_zalloc_coherent

From: Colin Ian King <colin.king@...onical.com>

Use dma_zalloc_coherent rather than dam_alloc_coherent and memset.

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/net/ethernet/intel/ixgb/ixgb_main.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_main.c b/drivers/net/ethernet/intel/ixgb/ixgb_main.c
index 43664adf7a3c..c71bc0237108 100644
--- a/drivers/net/ethernet/intel/ixgb/ixgb_main.c
+++ b/drivers/net/ethernet/intel/ixgb/ixgb_main.c
@@ -771,14 +771,12 @@ ixgb_setup_rx_resources(struct ixgb_adapter *adapter)
 	rxdr->size = rxdr->count * sizeof(struct ixgb_rx_desc);
 	rxdr->size = ALIGN(rxdr->size, 4096);
 
-	rxdr->desc = dma_alloc_coherent(&pdev->dev, rxdr->size, &rxdr->dma,
-					GFP_KERNEL);
-
+	rxdr->desc = dma_zalloc_coherent(&pdev->dev, rxdr->size, &rxdr->dma,
+					 GFP_KERNEL);
 	if (!rxdr->desc) {
 		vfree(rxdr->buffer_info);
 		return -ENOMEM;
 	}
-	memset(rxdr->desc, 0, rxdr->size);
 
 	rxdr->next_to_clean = 0;
 	rxdr->next_to_use = 0;
-- 
2.17.1