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net, drivers/net: Convert compare_ether_addr_64bits to ether_addr_equ…
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…al_64bits

Use the new bool function ether_addr_equal_64bits to add
some clarity and reduce the likelihood for misuse of
compare_ether_addr_64bits for sorting.

Done via cocci script:

$ cat compare_ether_addr_64bits.cocci
@@
expression a,b;
@@
-	!compare_ether_addr_64bits(a, b)
+	ether_addr_equal_64bits(a, b)

@@
expression a,b;
@@
-	compare_ether_addr_64bits(a, b)
+	!ether_addr_equal_64bits(a, b)

@@
expression a,b;
@@
-	!ether_addr_equal_64bits(a, b) == 0
+	ether_addr_equal_64bits(a, b)

@@
expression a,b;
@@
-	!ether_addr_equal_64bits(a, b) != 0
+	!ether_addr_equal_64bits(a, b)

@@
expression a,b;
@@
-	ether_addr_equal_64bits(a, b) == 0
+	!ether_addr_equal_64bits(a, b)

@@
expression a,b;
@@
-	ether_addr_equal_64bits(a, b) != 0
+	ether_addr_equal_64bits(a, b)

@@
expression a,b;
@@
-	!!ether_addr_equal_64bits(a, b)
+	ether_addr_equal_64bits(a, b)

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Joe Perches authored and David S. Miller committed May 11, 2012
1 parent baf523c commit a6700db
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Showing 3 changed files with 35 additions and 35 deletions.
58 changes: 29 additions & 29 deletions drivers/net/bonding/bond_alb.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -332,7 +332,7 @@ static void rlb_update_entry_from_arp(struct bonding *bond, struct arp_pkt *arp)
if ((client_info->assigned) &&
(client_info->ip_src == arp->ip_dst) &&
(client_info->ip_dst == arp->ip_src) &&
(compare_ether_addr_64bits(client_info->mac_dst, arp->mac_src))) {
(!ether_addr_equal_64bits(client_info->mac_dst, arp->mac_src))) {
/* update the clients MAC address */
memcpy(client_info->mac_dst, arp->mac_src, ETH_ALEN);
client_info->ntt = 1;
Expand Down Expand Up @@ -448,8 +448,8 @@ static void rlb_clear_slave(struct bonding *bond, struct slave *slave)

if (assigned_slave) {
rx_hash_table[index].slave = assigned_slave;
if (compare_ether_addr_64bits(rx_hash_table[index].mac_dst,
mac_bcast)) {
if (!ether_addr_equal_64bits(rx_hash_table[index].mac_dst,
mac_bcast)) {
bond_info->rx_hashtbl[index].ntt = 1;
bond_info->rx_ntt = 1;
/* A slave has been removed from the
Expand Down Expand Up @@ -561,7 +561,7 @@ static void rlb_req_update_slave_clients(struct bonding *bond, struct slave *sla
client_info = &(bond_info->rx_hashtbl[hash_index]);

if ((client_info->slave == slave) &&
compare_ether_addr_64bits(client_info->mac_dst, mac_bcast)) {
!ether_addr_equal_64bits(client_info->mac_dst, mac_bcast)) {
client_info->ntt = 1;
ntt = 1;
}
Expand Down Expand Up @@ -600,9 +600,9 @@ static void rlb_req_update_subnet_clients(struct bonding *bond, __be32 src_ip)
* unicast mac address.
*/
if ((client_info->ip_src == src_ip) &&
compare_ether_addr_64bits(client_info->slave->dev->dev_addr,
bond->dev->dev_addr) &&
compare_ether_addr_64bits(client_info->mac_dst, mac_bcast)) {
!ether_addr_equal_64bits(client_info->slave->dev->dev_addr,
bond->dev->dev_addr) &&
!ether_addr_equal_64bits(client_info->mac_dst, mac_bcast)) {
client_info->ntt = 1;
bond_info->rx_ntt = 1;
}
Expand All @@ -629,7 +629,7 @@ static struct slave *rlb_choose_channel(struct sk_buff *skb, struct bonding *bon
if ((client_info->ip_src == arp->ip_src) &&
(client_info->ip_dst == arp->ip_dst)) {
/* the entry is already assigned to this client */
if (compare_ether_addr_64bits(arp->mac_dst, mac_bcast)) {
if (!ether_addr_equal_64bits(arp->mac_dst, mac_bcast)) {
/* update mac address from arp */
memcpy(client_info->mac_dst, arp->mac_dst, ETH_ALEN);
}
Expand Down Expand Up @@ -664,7 +664,7 @@ static struct slave *rlb_choose_channel(struct sk_buff *skb, struct bonding *bon
memcpy(client_info->mac_dst, arp->mac_dst, ETH_ALEN);
client_info->slave = assigned_slave;

if (compare_ether_addr_64bits(client_info->mac_dst, mac_bcast)) {
if (!ether_addr_equal_64bits(client_info->mac_dst, mac_bcast)) {
client_info->ntt = 1;
bond->alb_info.rx_ntt = 1;
} else {
Expand Down Expand Up @@ -1009,18 +1009,18 @@ static void alb_change_hw_addr_on_detach(struct bonding *bond, struct slave *sla
int perm_curr_diff;
int perm_bond_diff;

perm_curr_diff = compare_ether_addr_64bits(slave->perm_hwaddr,
slave->dev->dev_addr);
perm_bond_diff = compare_ether_addr_64bits(slave->perm_hwaddr,
bond->dev->dev_addr);
perm_curr_diff = !ether_addr_equal_64bits(slave->perm_hwaddr,
slave->dev->dev_addr);
perm_bond_diff = !ether_addr_equal_64bits(slave->perm_hwaddr,
bond->dev->dev_addr);

if (perm_curr_diff && perm_bond_diff) {
struct slave *tmp_slave;
int i, found = 0;

bond_for_each_slave(bond, tmp_slave, i) {
if (!compare_ether_addr_64bits(slave->perm_hwaddr,
tmp_slave->dev->dev_addr)) {
if (ether_addr_equal_64bits(slave->perm_hwaddr,
tmp_slave->dev->dev_addr)) {
found = 1;
break;
}
Expand Down Expand Up @@ -1074,10 +1074,10 @@ static int alb_handle_addr_collision_on_attach(struct bonding *bond, struct slav
* check uniqueness of slave's mac address against the other
* slaves in the bond.
*/
if (compare_ether_addr_64bits(slave->perm_hwaddr, bond->dev->dev_addr)) {
if (!ether_addr_equal_64bits(slave->perm_hwaddr, bond->dev->dev_addr)) {
bond_for_each_slave(bond, tmp_slave1, i) {
if (!compare_ether_addr_64bits(tmp_slave1->dev->dev_addr,
slave->dev->dev_addr)) {
if (ether_addr_equal_64bits(tmp_slave1->dev->dev_addr,
slave->dev->dev_addr)) {
found = 1;
break;
}
Expand All @@ -1099,8 +1099,8 @@ static int alb_handle_addr_collision_on_attach(struct bonding *bond, struct slav
bond_for_each_slave(bond, tmp_slave1, i) {
found = 0;
bond_for_each_slave(bond, tmp_slave2, j) {
if (!compare_ether_addr_64bits(tmp_slave1->perm_hwaddr,
tmp_slave2->dev->dev_addr)) {
if (ether_addr_equal_64bits(tmp_slave1->perm_hwaddr,
tmp_slave2->dev->dev_addr)) {
found = 1;
break;
}
Expand All @@ -1115,8 +1115,8 @@ static int alb_handle_addr_collision_on_attach(struct bonding *bond, struct slav
}

if (!has_bond_addr) {
if (!compare_ether_addr_64bits(tmp_slave1->dev->dev_addr,
bond->dev->dev_addr)) {
if (ether_addr_equal_64bits(tmp_slave1->dev->dev_addr,
bond->dev->dev_addr)) {

has_bond_addr = tmp_slave1;
}
Expand Down Expand Up @@ -1257,7 +1257,7 @@ int bond_alb_xmit(struct sk_buff *skb, struct net_device *bond_dev)
case ETH_P_IP: {
const struct iphdr *iph = ip_hdr(skb);

if (!compare_ether_addr_64bits(eth_data->h_dest, mac_bcast) ||
if (ether_addr_equal_64bits(eth_data->h_dest, mac_bcast) ||
(iph->daddr == ip_bcast) ||
(iph->protocol == IPPROTO_IGMP)) {
do_tx_balance = 0;
Expand All @@ -1271,15 +1271,15 @@ int bond_alb_xmit(struct sk_buff *skb, struct net_device *bond_dev)
/* IPv6 doesn't really use broadcast mac address, but leave
* that here just in case.
*/
if (!compare_ether_addr_64bits(eth_data->h_dest, mac_bcast)) {
if (ether_addr_equal_64bits(eth_data->h_dest, mac_bcast)) {
do_tx_balance = 0;
break;
}

/* IPv6 uses all-nodes multicast as an equivalent to
* broadcasts in IPv4.
*/
if (!compare_ether_addr_64bits(eth_data->h_dest, mac_v6_allmcast)) {
if (ether_addr_equal_64bits(eth_data->h_dest, mac_v6_allmcast)) {
do_tx_balance = 0;
break;
}
Expand Down Expand Up @@ -1603,8 +1603,8 @@ void bond_alb_handle_active_change(struct bonding *bond, struct slave *new_slave
struct slave *tmp_slave;
/* find slave that is holding the bond's mac address */
bond_for_each_slave(bond, tmp_slave, i) {
if (!compare_ether_addr_64bits(tmp_slave->dev->dev_addr,
bond->dev->dev_addr)) {
if (ether_addr_equal_64bits(tmp_slave->dev->dev_addr,
bond->dev->dev_addr)) {
swap_slave = tmp_slave;
break;
}
Expand Down Expand Up @@ -1681,8 +1681,8 @@ int bond_alb_set_mac_address(struct net_device *bond_dev, void *addr)
swap_slave = NULL;

bond_for_each_slave(bond, slave, i) {
if (!compare_ether_addr_64bits(slave->dev->dev_addr,
bond_dev->dev_addr)) {
if (ether_addr_equal_64bits(slave->dev->dev_addr,
bond_dev->dev_addr)) {
swap_slave = slave;
break;
}
Expand Down
7 changes: 3 additions & 4 deletions drivers/net/macvlan.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -57,7 +57,7 @@ static struct macvlan_dev *macvlan_hash_lookup(const struct macvlan_port *port,
struct hlist_node *n;

hlist_for_each_entry_rcu(vlan, n, &port->vlan_hash[addr[5]], hlist) {
if (!compare_ether_addr_64bits(vlan->dev->dev_addr, addr))
if (ether_addr_equal_64bits(vlan->dev->dev_addr, addr))
return vlan;
}
return NULL;
Expand Down Expand Up @@ -96,7 +96,7 @@ static int macvlan_addr_busy(const struct macvlan_port *port,
* currently in use by the underlying device or
* another macvlan.
*/
if (!compare_ether_addr_64bits(port->dev->dev_addr, addr))
if (ether_addr_equal_64bits(port->dev->dev_addr, addr))
return 1;

if (macvlan_hash_lookup(port, addr))
Expand All @@ -118,8 +118,7 @@ static int macvlan_broadcast_one(struct sk_buff *skb,
return vlan->forward(dev, skb);

skb->dev = dev;
if (!compare_ether_addr_64bits(eth->h_dest,
dev->broadcast))
if (ether_addr_equal_64bits(eth->h_dest, dev->broadcast))
skb->pkt_type = PACKET_BROADCAST;
else
skb->pkt_type = PACKET_MULTICAST;
Expand Down
5 changes: 3 additions & 2 deletions net/ethernet/eth.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -164,7 +164,7 @@ __be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev)
eth = eth_hdr(skb);

if (unlikely(is_multicast_ether_addr(eth->h_dest))) {
if (!compare_ether_addr_64bits(eth->h_dest, dev->broadcast))
if (ether_addr_equal_64bits(eth->h_dest, dev->broadcast))
skb->pkt_type = PACKET_BROADCAST;
else
skb->pkt_type = PACKET_MULTICAST;
Expand All @@ -179,7 +179,8 @@ __be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev)
*/

else if (1 /*dev->flags&IFF_PROMISC */ ) {
if (unlikely(compare_ether_addr_64bits(eth->h_dest, dev->dev_addr)))
if (unlikely(!ether_addr_equal_64bits(eth->h_dest,
dev->dev_addr)))
skb->pkt_type = PACKET_OTHERHOST;
}

Expand Down

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