[IPV6]: Use ipv6_addr_equal() instead of !ipv6_addr_cmp().

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 9241583..ed99380 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2951,7 +2951,7 @@
 	for (ifp = inet6_addr_lst[hash]; ifp; ifp = ifp->lst_next) {
 		if (!net_eq(dev_net(ifp->idev->dev), net))
 			continue;
-		if (ipv6_addr_cmp(&ifp->addr, addr) == 0 &&
+		if (ipv6_addr_equal(&ifp->addr, addr) &&
 		    (ifp->flags & IFA_F_HOMEADDRESS)) {
 			ret = 1;
 			break;