From 5e231c2c5aeda0763c0b6e1337ca7bb61a887af8 Mon Sep 17 00:00:00 2001 From: dingtianhong Date: Thu, 26 Dec 2013 19:41:10 +0800 Subject: [PATCH] media: dvb_core: slight optimization of addr compare 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 Signed-off-by: David S. Miller --- 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 f91c80c0e9ec..8a86b3025637 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 */ }