From: Wang Qing <wangqing@vivo.com>
Date: Sat, 13 Mar 2021 02:41:43 +0000 (+0800)
Subject: usb: cdns3: delete repeated clear operations
X-Git-Tag: perf_urgent_for_v5.13_rc1~77^2~61^2~2
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=8079ebf5ff51503574b5e6fd8d141de80032d761;p=users%2Fdwmw2%2Flinux.git

usb: cdns3: delete repeated clear operations

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

Signed-off-by: Wang Qing <wangqing@vivo.com>
Reviewed-by: Pawel Laszczak <pawell@cadence.com>
Acked-by: Pawel Laszczak <pawell@cadence.com>
Signed-off-by: Peter Chen <peter.chen@kernel.org>
---

diff --git a/drivers/usb/cdns3/cdnsp-mem.c b/drivers/usb/cdns3/cdnsp-mem.c
index 7a84e928710e4..1d1b9a429d4c0 100644
--- 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);