commit 9a7b6ef9b9938a1f5cb91ccc0b713b9443edc79f
author Joe Perches <joe@perches.com> Tue May 08 18:56:49 2012 +0000
committer David S. Miller <davem@davemloft.net> Wed May 09 20:49:17 2012 -0400
tree 9fcdd72bb2adb4e481bf30aa0143d65627ebd637
parent 171fe5ef140571c7465e625e9cd9fdf3340ad20e

bridge: 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>

net/bridge/br_stp_if.c

diff --git a/net/bridge/br_stp_if.c b/net/bridge/br_stp_if.c
index f494496..9d5a414 100644
--- a/net/bridge/br_stp_if.c
+++ b/net/bridge/br_stp_if.c
@@ -178,7 +178,7 @@
 /* called under bridge lock */
 void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *addr)
 {
-	/* should be aligned on 2 bytes for compare_ether_addr() */
+	/* should be aligned on 2 bytes for ether_addr_equal() */
 	unsigned short oldaddr_aligned[ETH_ALEN >> 1];
 	unsigned char *oldaddr = (unsigned char *)oldaddr_aligned;
 	struct net_bridge_port *p;
@@ -191,12 +191,11 @@
 	memcpy(br->dev->dev_addr, addr, ETH_ALEN);
 
 	list_for_each_entry(p, &br->port_list, list) {
-		if (!compare_ether_addr(p->designated_bridge.addr, oldaddr))
+		if (ether_addr_equal(p->designated_bridge.addr, oldaddr))
 			memcpy(p->designated_bridge.addr, addr, ETH_ALEN);
 
-		if (!compare_ether_addr(p->designated_root.addr, oldaddr))
+		if (ether_addr_equal(p->designated_root.addr, oldaddr))
 			memcpy(p->designated_root.addr, addr, ETH_ALEN);
-
 	}
 
 	br_configuration_update(br);
@@ -205,7 +204,7 @@
 		br_become_root_bridge(br);
 }
 
-/* should be aligned on 2 bytes for compare_ether_addr() */
+/* should be aligned on 2 bytes for ether_addr_equal() */
 static const unsigned short br_mac_zero_aligned[ETH_ALEN >> 1];
 
 /* called under bridge lock */
@@ -227,7 +226,7 @@
 
 	}
 
-	if (compare_ether_addr(br->bridge_id.addr, addr) == 0)
+	if (ether_addr_equal(br->bridge_id.addr, addr))
 		return false;	/* no change */
 
 	br_stp_change_bridge_id(br, addr);