Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933110AbdCaLVx (ORCPT ); Fri, 31 Mar 2017 07:21:53 -0400 Received: from szxga02-in.huawei.com ([45.249.212.188]:4871 "EHLO dggrg02-dlp.huawei.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1754814AbdCaLVv (ORCPT ); Fri, 31 Mar 2017 07:21:51 -0400 From: Salil Mehta To: CC: , , , , , , lipeng , Weiwei Deng Subject: [PATCH V2 net-next 04/18] net: hns: Remove redundant memset during buffer release Date: Fri, 31 Mar 2017 12:20:18 +0100 Message-ID: <20170331112032.4692-5-salil.mehta@huawei.com> X-Mailer: git-send-email 2.8.3 In-Reply-To: <20170331112032.4692-1-salil.mehta@huawei.com> References: <20170331112032.4692-1-salil.mehta@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.203.181.152] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020205.58DE3BCB.01A1,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0, ip=0.0.0.0, so=2014-11-16 11:51:01, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: e21f306b1703e4022b026af9733d23e5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1147 Lines: 30 From: lipeng Because all members of desc_cb is assigned when xmit one package, so it can delete in hnae_free_buffer, as follows: - "dma, priv, length, type" are assigned in fill_v2_desc. - "page_offset, reuse_flag, buf" are not used in tx direction. Signed-off-by: lipeng Signed-off-by: Weiwei Deng Reviewed-by: Yisen Zhuang Signed-off-by: Salil Mehta --- drivers/net/ethernet/hisilicon/hns/hnae.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/net/ethernet/hisilicon/hns/hnae.c b/drivers/net/ethernet/hisilicon/hns/hnae.c index b6ed818..78af663 100644 --- a/drivers/net/ethernet/hisilicon/hns/hnae.c +++ b/drivers/net/ethernet/hisilicon/hns/hnae.c @@ -61,7 +61,6 @@ static void hnae_free_buffer(struct hnae_ring *ring, struct hnae_desc_cb *cb) dev_kfree_skb_any((struct sk_buff *)cb->priv); else if (unlikely(is_rx_ring(ring))) put_page((struct page *)cb->priv); - memset(cb, 0, sizeof(*cb)); } static int hnae_map_buffer(struct hnae_ring *ring, struct hnae_desc_cb *cb) -- 2.7.4