Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755205AbaAHCyb (ORCPT ); Tue, 7 Jan 2014 21:54:31 -0500 Received: from szxga01-in.huawei.com ([119.145.14.64]:40481 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755110AbaAHCyN (ORCPT ); Tue, 7 Jan 2014 21:54:13 -0500 Message-ID: <52CCBDCE.8030503@huawei.com> Date: Wed, 8 Jan 2014 10:54:06 +0800 From: Ding Tianhong User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:24.0) Gecko/20100101 Thunderbird/24.0.1 MIME-Version: 1.0 To: Mauro Carvalho Chehab , , "linux-kernel@vger.kernel.org" , Netdev Subject: [PATCH v3.6 13/19] media: dvb_core: slight optimization of addr compare Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.177.22.246] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use possibly more efficient ether_addr_equal instead of memcmp. Cc: Mauro Carvalho Chehab Cc: linux-media@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Yang Yingliang Signed-off-by: Ding Tianhong Acked-by: Mauro Carvalho Chehab --- drivers/media/dvb-core/dvb_net.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/media/dvb-core/dvb_net.c b/drivers/media/dvb-core/dvb_net.c index f91c80c..8a86b30 100644 --- a/drivers/media/dvb-core/dvb_net.c +++ b/drivers/media/dvb-core/dvb_net.c @@ -179,7 +179,7 @@ static __be16 dvb_net_eth_type_trans(struct sk_buff *skb, eth = eth_hdr(skb); if (*eth->h_dest & 1) { - if(memcmp(eth->h_dest,dev->broadcast, ETH_ALEN)==0) + if (ether_addr_equal(eth->h_dest,dev->broadcast)) skb->pkt_type=PACKET_BROADCAST; else skb->pkt_type=PACKET_MULTICAST; @@ -674,11 +674,13 @@ static void dvb_net_ule( struct net_device *dev, const u8 *buf, size_t buf_len ) if (priv->rx_mode != RX_MODE_PROMISC) { if (priv->ule_skb->data[0] & 0x01) { /* multicast or broadcast */ - if (memcmp(priv->ule_skb->data, bc_addr, ETH_ALEN)) { + if (!ether_addr_equal(priv->ule_skb->data, bc_addr)) { /* multicast */ if (priv->rx_mode == RX_MODE_MULTI) { int i; - for(i = 0; i < priv->multi_num && memcmp(priv->ule_skb->data, priv->multi_macs[i], ETH_ALEN); i++) + for (i = 0; i < priv->multi_num && + !ether_addr_equal(priv->ule_skb->data, + priv->multi_macs[i]); i++) ; if (i == priv->multi_num) drop = 1; @@ -688,7 +690,7 @@ static void dvb_net_ule( struct net_device *dev, const u8 *buf, size_t buf_len ) } /* else: broadcast */ } - else if (memcmp(priv->ule_skb->data, dev->dev_addr, ETH_ALEN)) + else if (!ether_addr_equal(priv->ule_skb->data, dev->dev_addr)) drop = 1; /* else: destination address matches the MAC address of our receiver device */ } -- 1.8.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/