From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753077AbeFDMgb (ORCPT ); Mon, 4 Jun 2018 08:36:31 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:8633 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752579AbeFDMga (ORCPT ); Mon, 4 Jun 2018 08:36:30 -0400 From: YueHaibing To: , CC: , , , YueHaibing Subject: [PATCH] ath10k: use dma_zalloc_coherent instead of allocator/memset Date: Mon, 4 Jun 2018 20:35:42 +0800 Message-ID: <20180604123542.24336-1-yuehaibing@huawei.com> X-Mailer: git-send-email 2.10.2.windows.1 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.177.31.96] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use dma_zalloc_coherent instead of dma_alloc_coherent followed by memset 0. Signed-off-by: YueHaibing --- drivers/net/wireless/ath/ath10k/wmi.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c index f97ab79..72db3bd 100644 --- a/drivers/net/wireless/ath/ath10k/wmi.c +++ b/drivers/net/wireless/ath/ath10k/wmi.c @@ -5018,13 +5018,11 @@ static int ath10k_wmi_alloc_chunk(struct ath10k *ar, u32 req_id, void *vaddr; pool_size = num_units * round_up(unit_len, 4); - vaddr = dma_alloc_coherent(ar->dev, pool_size, &paddr, GFP_KERNEL); + vaddr = dma_zalloc_coherent(ar->dev, pool_size, &paddr, GFP_KERNEL); if (!vaddr) return -ENOMEM; - memset(vaddr, 0, pool_size); - ar->wmi.mem_chunks[idx].vaddr = vaddr; ar->wmi.mem_chunks[idx].paddr = paddr; ar->wmi.mem_chunks[idx].len = pool_size; -- 2.7.0