linux-kernel - [PATCH] usb: cdns3: delete repeated clear operations

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Message-Id: <1615603303-14518-1-git-send-email-wangqing@vivo.com>
Date:   Sat, 13 Mar 2021 10:41:43 +0800
From:   Wang Qing <wangqing@...o.com>
To:     Pawel Laszczak <pawell@...ence.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Wang Qing <wangqing@...o.com>
Subject: [PATCH] usb: cdns3: delete repeated clear operations

dma_alloc_coherent already zeroes out memory, so memset is not needed.

Signed-off-by: Wang Qing <wangqing@...o.com>
---
 drivers/usb/cdns3/cdnsp-mem.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/usb/cdns3/cdnsp-mem.c b/drivers/usb/cdns3/cdnsp-mem.c
index 7a84e92..1d1b9a4
--- a/drivers/usb/cdns3/cdnsp-mem.c
+++ b/drivers/usb/cdns3/cdnsp-mem.c
@@ -1231,7 +1231,6 @@ int cdnsp_mem_init(struct cdnsp_device *pdev)
 	if (!pdev->dcbaa)
 		return -ENOMEM;
 
-	memset(pdev->dcbaa, 0, sizeof(*pdev->dcbaa));
 	pdev->dcbaa->dma = dma;
 
 	cdnsp_write_64(dma, &pdev->op_regs->dcbaa_ptr);
-- 
2.7.4