Commit e83abe37 authored by Joe Perches's avatar Joe Perches Committed by David S. Miller
Browse files

hsr: Use ether_addr_copy 



It's slightly smaller/faster for some architectures.
Make sure def_multicast_addr is __aligned(2)

Signed-off-by: default avatarJoe Perches <joe@perches.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 42621fd3

net/hsr/hsr_device.c

+5 −5
Original line number Diff line number Diff line
@@ -209,7 +209,7 @@ static int slave_xmit(struct sk_buff *skb, struct hsr_priv *hsr_priv, 
	/* Address substitution (IEC62439-3 pp 26, 50): replace mac

	 * address of outgoing frame with that of the outgoing slave's.

	 */

	memcpy(hsr_ethhdr->ethhdr.h_source, skb->dev->dev_addr, ETH_ALEN);

	ether_addr_copy(hsr_ethhdr->ethhdr.h_source, skb->dev->dev_addr);



	return dev_queue_xmit(skb);

}
@@ -346,7 +346,7 @@ static void send_hsr_supervision_frame(struct net_device *hsr_dev, u8 type) 


	/* Payload: MacAddressA */

	hsr_sp = (typeof(hsr_sp)) skb_put(skb, sizeof(*hsr_sp));

	memcpy(hsr_sp->MacAddressA, hsr_dev->dev_addr, ETH_ALEN);

	ether_addr_copy(hsr_sp->MacAddressA, hsr_dev->dev_addr);



	dev_queue_xmit(skb);

	return;
@@ -493,7 +493,7 @@ static int check_slave_ok(struct net_device *dev) 




/* Default multicast address for HSR Supervision frames */

static const unsigned char def_multicast_addr[ETH_ALEN] = {

static const unsigned char def_multicast_addr[ETH_ALEN] __aligned(2) = {

	0x01, 0x15, 0x4e, 0x00, 0x01, 0x00

};
@@ -519,7 +519,7 @@ int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2], 
	hsr_priv->announce_timer.function = hsr_announce;

	hsr_priv->announce_timer.data = (unsigned long) hsr_priv;



	memcpy(hsr_priv->sup_multicast_addr, def_multicast_addr, ETH_ALEN);

	ether_addr_copy(hsr_priv->sup_multicast_addr, def_multicast_addr);

	hsr_priv->sup_multicast_addr[ETH_ALEN - 1] = multicast_spec;



/* FIXME: should I modify the value of these?
@@ -547,7 +547,7 @@ int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2], 
	hsr_dev->features |= NETIF_F_VLAN_CHALLENGED;



	/* Set hsr_dev's MAC address to that of mac_slave1 */

	memcpy(hsr_dev->dev_addr, hsr_priv->slave[0]->dev_addr, ETH_ALEN);

	ether_addr_copy(hsr_dev->dev_addr, hsr_priv->slave[0]->dev_addr);



	/* Set required header length */

	for (i = 0; i < HSR_MAX_SLAVE; i++) {

net/hsr/hsr_framereg.c

+10 −10
Original line number Diff line number Diff line
@@ -108,8 +108,8 @@ int hsr_create_self_node(struct list_head *self_node_db, 
	if (!node)

		return -ENOMEM;



	memcpy(node->MacAddressA, addr_a, ETH_ALEN);

	memcpy(node->MacAddressB, addr_b, ETH_ALEN);

	ether_addr_copy(node->MacAddressA, addr_a);

	ether_addr_copy(node->MacAddressB, addr_b);



	rcu_read_lock();

	oldnode = list_first_or_null_rcu(self_node_db,
@@ -199,7 +199,7 @@ struct node_entry *hsr_merge_node(struct hsr_priv *hsr_priv, 
		/* Node is known, but frame was received from an unknown

		 * address. Node is PICS_SUBS capable; merge its AddrB.

		 */

		memcpy(node->MacAddressB, hsr_ethsup->ethhdr.h_source, ETH_ALEN);

		ether_addr_copy(node->MacAddressB, hsr_ethsup->ethhdr.h_source);

		node->AddrB_if = dev_idx;

		return node;

	}
@@ -208,8 +208,8 @@ struct node_entry *hsr_merge_node(struct hsr_priv *hsr_priv, 
	if (!node)

		return NULL;



	memcpy(node->MacAddressA, hsr_sp->MacAddressA, ETH_ALEN);

	memcpy(node->MacAddressB, hsr_ethsup->ethhdr.h_source, ETH_ALEN);

	ether_addr_copy(node->MacAddressA, hsr_sp->MacAddressA);

	ether_addr_copy(node->MacAddressB, hsr_ethsup->ethhdr.h_source);

	if (!ether_addr_equal(hsr_sp->MacAddressA, hsr_ethsup->ethhdr.h_source))

		node->AddrB_if = dev_idx;

	else
@@ -250,7 +250,7 @@ void hsr_addr_subst_source(struct hsr_priv *hsr_priv, struct sk_buff *skb) 
	rcu_read_lock();

	node = find_node_by_AddrB(&hsr_priv->node_db, ethhdr->h_source);

	if (node)

		memcpy(ethhdr->h_source, node->MacAddressA, ETH_ALEN);

		ether_addr_copy(ethhdr->h_source, node->MacAddressA);

	rcu_read_unlock();

}
@@ -272,7 +272,7 @@ void hsr_addr_subst_dest(struct hsr_priv *hsr_priv, struct ethhdr *ethhdr, 
	rcu_read_lock();

	node = find_node_by_AddrA(&hsr_priv->node_db, ethhdr->h_dest);

	if (node && (node->AddrB_if == dev_idx))

		memcpy(ethhdr->h_dest, node->MacAddressB, ETH_ALEN);

		ether_addr_copy(ethhdr->h_dest, node->MacAddressB);

	rcu_read_unlock();

}
@@ -428,13 +428,13 @@ void *hsr_get_next_node(struct hsr_priv *hsr_priv, void *_pos, 
		node = list_first_or_null_rcu(&hsr_priv->node_db,

						struct node_entry, mac_list);

		if (node)

			memcpy(addr, node->MacAddressA, ETH_ALEN);

			ether_addr_copy(addr, node->MacAddressA);

		return node;

	}



	node = _pos;

	list_for_each_entry_continue_rcu(node, &hsr_priv->node_db, mac_list) {

		memcpy(addr, node->MacAddressA, ETH_ALEN);

		ether_addr_copy(addr, node->MacAddressA);

		return node;

	}
@@ -462,7 +462,7 @@ int hsr_get_node_data(struct hsr_priv *hsr_priv, 
		return -ENOENT;	/* No such entry */

	}



	memcpy(addr_b, node->MacAddressB, ETH_ALEN);

	ether_addr_copy(addr_b, node->MacAddressB);



	tdiff = jiffies - node->time_in[HSR_DEV_SLAVE_A];

	if (node->time_in_stale[HSR_DEV_SLAVE_A])

net/hsr/hsr_main.c

+2 −2
Original line number Diff line number Diff line
@@ -138,8 +138,8 @@ static int hsr_netdev_notify(struct notifier_block *nb, unsigned long event, 
			break;



		if (dev == hsr_priv->slave[0])

			memcpy(hsr_priv->dev->dev_addr,

			       hsr_priv->slave[0]->dev_addr, ETH_ALEN);

			ether_addr_copy(hsr_priv->dev->dev_addr,

					hsr_priv->slave[0]->dev_addr);



		/* Make sure we recognize frames from ourselves in hsr_rcv() */

		res = hsr_create_self_node(&hsr_priv->self_node_db,

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