RE: [PATCH] usb: cdns3: delete repeated clear operations

From: Pawel Laszczak
Date: Mon Mar 22 2021 - 03:20:34 EST


Hi Peter,

Can you add this patch to for-usb-next branch.

Thanks.

>
>
>dma_alloc_coherent already zeroes out memory, so memset is not needed.
>
>Signed-off-by: Wang Qing <wangqing@xxxxxxxx>

Reviewed-by: Pawel Laszczak <pawell@xxxxxxxxxxx>

>---
> 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

Regards,
Pawel Laszczak