From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751037AbdAWXTe (ORCPT ); Mon, 23 Jan 2017 18:19:34 -0500 Received: from smtprelay0138.hostedemail.com ([216.40.44.138]:52251 "EHLO smtprelay.hostedemail.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750708AbdAWXTd (ORCPT ); Mon, 23 Jan 2017 18:19:33 -0500 X-Session-Marker: 6A6F6540706572636865732E636F6D X-Spam-Summary: 2,0,0,,d41d8cd98f00b204,joe@perches.com,:::::::::::,RULES_HIT:41:355:379:541:599:968:973:988:989:1260:1277:1311:1313:1314:1345:1359:1373:1437:1515:1516:1518:1534:1540:1593:1594:1711:1714:1730:1747:1777:1792:2393:2559:2562:2828:3138:3139:3140:3141:3142:3350:3622:3865:3866:3867:3868:4321:4605:5007:10004:10400:10848:11026:11473:11657:11658:11914:12043:12114:12438:12679:12740:12895:13069:13311:13357:13439:13894:14659:14721:21080:30003:30054:30091,0,RBL:none,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fn,MSBL:0,DNSBL:none,Custom_rules:0:0:0,LFtime:1,LUA_SUMMARY:none X-HE-Tag: sail78_52fd11f247a3b X-Filterd-Recvd-Size: 1796 Message-ID: <1485213569.12563.32.camel@perches.com> Subject: Re: [PATCH 2/3] ath10k: use dma_zalloc_coherent() From: Joe Perches To: Srinivas Kandagatla , Kalle Valo Cc: ath10k@lists.infradead.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Date: Mon, 23 Jan 2017 15:19:29 -0800 In-Reply-To: <1485183876-27080-2-git-send-email-srinivas.kandagatla@linaro.org> References: <1485183876-27080-1-git-send-email-srinivas.kandagatla@linaro.org> <1485183876-27080-2-git-send-email-srinivas.kandagatla@linaro.org> Content-Type: text/plain; charset="ISO-8859-1" X-Mailer: Evolution 3.22.3-0ubuntu0.1 Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2017-01-23 at 15:04 +0000, Srinivas Kandagatla wrote: > use dma_zalloc_coherent() instead of dma_alloc_coherent and memset(). [] > diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c [] > @@ -896,7 +896,7 @@ static int ath10k_pci_diag_read_mem(struct ath10k *ar, u32 address, void *data, > */ > alloc_nbytes = min_t(unsigned int, nbytes, DIAG_TRANSFER_LIMIT); > > - data_buf = (unsigned char *)dma_alloc_coherent(ar->dev, > + data_buf = (unsigned char *)dma_zalloc_coherent(ar->dev, > alloc_nbytes, > &ce_data_base, > GFP_ATOMIC); trivia: Nicer to realign arguments and remove the unnecessary cast. Perhaps: data_buf = dma_zalloc_coherent(ar->dev, alloc_nbytes, &ce_data_base,  GFP_ATOMIC);