Re: [PATCH] infiniband/hw/cxgb3/cxio_hal.c: Use dma_zalloc_coherent

From: Steve Wise
Date: Mon Nov 12 2018 - 10:31:50 EST




On 11/9/2018 10:50 AM, Sabyasachi Gupta wrote:
> Replaced dma_alloc_coherent + memset with dma_zalloc_coherent
>
> Signed-off-by: Sabyasachi Gupta <sabyasachi.linux@xxxxxxxxx>
> ---
> drivers/infiniband/hw/cxgb3/cxio_hal.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/infiniband/hw/cxgb3/cxio_hal.c b/drivers/infiniband/hw/cxgb3/cxio_hal.c
> index dcb4bba..df4f7a3 100644
> --- a/drivers/infiniband/hw/cxgb3/cxio_hal.c
> +++ b/drivers/infiniband/hw/cxgb3/cxio_hal.c
> @@ -291,13 +291,12 @@ int cxio_create_qp(struct cxio_rdev *rdev_p, u32 kernel_domain,
> if (!wq->sq)
> goto err3;
>
> - wq->queue = dma_alloc_coherent(&(rdev_p->rnic_info.pdev->dev),
> + wq->queue = dma_zalloc_coherent(&(rdev_p->rnic_info.pdev->dev),
> depth * sizeof(union t3_wr),
> &(wq->dma_addr), GFP_KERNEL);
> if (!wq->queue)
> goto err4;
>
> - memset(wq->queue, 0, depth * sizeof(union t3_wr));
> dma_unmap_addr_set(wq, mapping, wq->dma_addr);
> wq->doorbell = (void __iomem *)rdev_p->rnic_info.kdb_addr;
> if (!kernel_domain)
>

Acked-by: Steve Wise <swise@xxxxxxxxxxxxxxxxxxxxx>