[PATCH 3/3] net,drivers/net: Convert compare_ether_addr_64bits to ether_addr_equal_64bits

From: Joe Perches
Date: Wed May 09 2012 - 23:05:08 EST

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@xxxxxxxxxxx>
---
drivers/net/bonding/bond_alb.c | 58 ++++++++++++++++++++--------------------
drivers/net/macvlan.c | 7 ++---
net/ethernet/eth.c | 5 ++-
3 files changed, 35 insertions(+), 35 deletions(-)

diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index 9abfde4..b4f1b4a 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -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;
@@ -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
@@ -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;
}
@@ -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;
}
@@ -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);
}
@@ -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 {
@@ -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;
}
@@ -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;
}
@@ -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;
}
@@ -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;
}
@@ -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;
@@ -1271,7 +1271,7 @@ 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;
}
@@ -1279,7 +1279,7 @@ int bond_alb_xmit(struct sk_buff *skb, struct net_device *bond_dev)
/* 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;
}
@@ -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;
}
@@ -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;
}
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 9653ed6..ebacec1 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -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;
@@ -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))
@@ -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;
diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c
index 5889a6c..36e5880 100644
--- a/net/ethernet/eth.c
+++ b/net/ethernet/eth.c
@@ -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;
@@ -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;
}

--
1.7.8.111.gad25c.dirty

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