linux-kernel - [PATCH 38/87] ethernet: atlx: remove memset after pci_alloc

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Message-Id: <20190627174040.4180-1-huangfq.daxian@gmail.com>
Date:   Fri, 28 Jun 2019 01:40:39 +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>,
        Colin Ian King <colin.king@...onical.com>,
        Yang Wei <albin_yang@....com>,
        Allison Randal <allison@...utok.net>,
        Thomas Gleixner <tglx@...utronix.de>,
        Will Deacon <will@...nel.org>, Mao Wenan <maowenan@...wei.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 38/87] ethernet: atlx: remove memset after pci_alloc_consistent in atl2.c

pci_alloc_consitent 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/atl2.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/atheros/atlx/atl2.c b/drivers/net/ethernet/atheros/atlx/atl2.c
index 3a3fb5ce0fee..3aba38322717 100644
--- a/drivers/net/ethernet/atheros/atlx/atl2.c
+++ b/drivers/net/ethernet/atheros/atlx/atl2.c
@@ -291,7 +291,6 @@ static s32 atl2_setup_ring_resources(struct atl2_adapter *adapter)
 		&adapter->ring_dma);
 	if (!adapter->ring_vir_addr)
 		return -ENOMEM;
-	memset(adapter->ring_vir_addr, 0, adapter->ring_size);
 
 	/* Init TXD Ring */
 	adapter->txd_dma = adapter->ring_dma ;
-- 
2.11.0