linux-kernel - [PATCH 37/87] ethernet: atlx: remove memset after pci_alloc

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Message-Id: <20190627173924.3783-1-huangfq.daxian@gmail.com>
Date:   Fri, 28 Jun 2019 01:39:22 +0800
From:   Fuqian Huang <huangfq.daxian@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Fuqian Huang <huangfq.daxian@...il.com>,
        Jay Cliburn <jcliburn@...il.com>,
        Chris Snook <chris.snook@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Michael Ellerman <mpe@...erman.id.au>,
        Allison Randal <allison@...utok.net>,
        YueHaibing <yuehaibing@...wei.com>,
        Will Deacon <will@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        zhong jiang <zhongjiang@...wei.com>,
        Yang Wei <yang.wei9@....com.cn>,
        Colin Ian King <colin.king@...onical.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 37/87] ethernet: atlx: remove memset after pci_alloc_consistent in atl1.c

pci_alloc_consistent calls dma_alloc_coherent directly.
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@...il.com>
---
 drivers/net/ethernet/atheros/atlx/atl1.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/atheros/atlx/atl1.c b/drivers/net/ethernet/atheros/atlx/atl1.c
index 7c767ce9aafa..b5c6dc914720 100644
--- a/drivers/net/ethernet/atheros/atlx/atl1.c
+++ b/drivers/net/ethernet/atheros/atlx/atl1.c
@@ -1060,8 +1060,6 @@ static s32 atl1_setup_ring_resources(struct atl1_adapter *adapter)
 		goto err_nomem;
 	}
 
-	memset(ring_header->desc, 0, ring_header->size);
-
 	/* init TPD ring */
 	tpd_ring->dma = ring_header->dma;
 	offset = (tpd_ring->dma & 0x7) ? (8 - (ring_header->dma & 0x7)) : 0;
-- 
2.11.0