8021q: Convert compare_ether_addr to ether_addr_equal

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

Done via cocci script:

$ cat compare_ether_addr.cocci
@@
expression a,b;
@@
-	!compare_ether_addr(a, b)
+	ether_addr_equal(a, b)

@@
expression a,b;
@@
-	compare_ether_addr(a, b)
+	!ether_addr_equal(a, b)

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

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

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

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

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

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 11 insertions, 12 deletions

diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index efea35b02e7f..6089f0cf23b4 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -266,19 +266,19 @@ static void vlan_sync_address(struct net_device *dev,
         struct vlan_dev_priv *vlan = vlan_dev_priv(vlandev);
 
         /* May be called without an actual change */
-        if (!compare_ether_addr(vlan->real_dev_addr, dev->dev_addr))
+        if (ether_addr_equal(vlan->real_dev_addr, dev->dev_addr))
                 return;
 
         /* vlan address was different from the old address and is equal to
          * the new address */
-        if (compare_ether_addr(vlandev->dev_addr, vlan->real_dev_addr) &&
-            !compare_ether_addr(vlandev->dev_addr, dev->dev_addr))
+        if (!ether_addr_equal(vlandev->dev_addr, vlan->real_dev_addr) &&
+            ether_addr_equal(vlandev->dev_addr, dev->dev_addr))
                 dev_uc_del(dev, vlandev->dev_addr);
 
         /* vlan address was equal to the old address and is different from
          * the new address */
-        if (!compare_ether_addr(vlandev->dev_addr, vlan->real_dev_addr) &&
-            compare_ether_addr(vlandev->dev_addr, dev->dev_addr))
+        if (ether_addr_equal(vlandev->dev_addr, vlan->real_dev_addr) &&
+            !ether_addr_equal(vlandev->dev_addr, dev->dev_addr))
                 dev_uc_add(dev, vlandev->dev_addr);
 
         memcpy(vlan->real_dev_addr, dev->dev_addr, ETH_ALEN);
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
index 4d39d802be2c..8ca533c95de0 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -31,8 +31,7 @@ bool vlan_do_receive(struct sk_buff **skbp, bool last_handler)
                 /* Our lower layer thinks this is not local, let's make sure.
                  * This allows the VLAN to have a different MAC than the
                  * underlying device, and still route correctly. */
-                if (!compare_ether_addr(eth_hdr(skb)->h_dest,
-                                        vlan_dev->dev_addr))
+                if (ether_addr_equal(eth_hdr(skb)->h_dest, vlan_dev->dev_addr))
                         skb->pkt_type = PACKET_HOST;
         }
 
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 9988d4abb372..eaf5f21b0ef7 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -277,7 +277,7 @@ static int vlan_dev_open(struct net_device *dev)
             !(vlan->flags & VLAN_FLAG_LOOSE_BINDING))
                 return -ENETDOWN;
 
-        if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr)) {
+        if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr)) {
                 err = dev_uc_add(real_dev, dev->dev_addr);
                 if (err < 0)
                         goto out;
@@ -307,7 +307,7 @@ clear_allmulti:
         if (dev->flags & IFF_ALLMULTI)
                 dev_set_allmulti(real_dev, -1);
 del_unicast:
-        if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
+        if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr))
                 dev_uc_del(real_dev, dev->dev_addr);
 out:
         netif_carrier_off(dev);
@@ -326,7 +326,7 @@ static int vlan_dev_stop(struct net_device *dev)
         if (dev->flags & IFF_PROMISC)
                 dev_set_promiscuity(real_dev, -1);
 
-        if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
+        if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr))
                 dev_uc_del(real_dev, dev->dev_addr);
 
         netif_carrier_off(dev);
@@ -345,13 +345,13 @@ static int vlan_dev_set_mac_address(struct net_device *dev, void *p)
         if (!(dev->flags & IFF_UP))
                 goto out;
 
-        if (compare_ether_addr(addr->sa_data, real_dev->dev_addr)) {
+        if (!ether_addr_equal(addr->sa_data, real_dev->dev_addr)) {
                 err = dev_uc_add(real_dev, addr->sa_data);
                 if (err < 0)
                         return err;
         }
 
-        if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
+        if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr))
                 dev_uc_del(real_dev, dev->dev_addr);
 
 out: