svn commit: r215423 - head/sys/netinet6

[Bjoern A. Zeeb]

Author: bz
Date: Wed Nov 17 10:43:20 2010
New Revision: 215423
URL: http://svn.freebsd.org/changeset/base/215423

Log:
  Do not initialize flag variables before needed.
  Consistently use the LLE_ prefix for lla_lookup() and the ND6_ prefix
  for nd6_lookup() even though both are defined the same. Use the right
  flag variable when checking each.
  
  No real functional change.
  
  MFC after:	4 days

Modified:
  head/sys/netinet6/nd6.c

Modified: head/sys/netinet6/nd6.c
==============================================================================
--- head/sys/netinet6/nd6.c	Wed Nov 17 09:49:51 2010	(r215422)
+++ head/sys/netinet6/nd6.c	Wed Nov 17 10:43:20 2010	(r215423)
@@ -836,7 +836,7 @@ nd6_lookup(struct in6_addr *addr6, int f
 {
 	struct sockaddr_in6 sin6;
 	struct llentry *ln;
-	int llflags = 0;
+	int llflags;
 	
 	bzero(&sin6, sizeof(sin6));
 	sin6.sin6_len = sizeof(struct sockaddr_in6);
@@ -845,13 +845,14 @@ nd6_lookup(struct in6_addr *addr6, int f
 
 	IF_AFDATA_LOCK_ASSERT(ifp);
 
+	llflags = 0;
 	if (flags & ND6_CREATE)
 	    llflags |= LLE_CREATE;
 	if (flags & ND6_EXCLUSIVE)
 	    llflags |= LLE_EXCLUSIVE;	
 	
 	ln = lla_lookup(LLTABLE6(ifp), llflags, (struct sockaddr *)&sin6);
-	if ((ln != NULL) && (flags & LLE_CREATE))
+	if ((ln != NULL) && (llflags & LLE_CREATE))
 		ln->ln_state = ND6_LLINFO_NOSTATE;
 	
 	return (ln);
@@ -1451,7 +1452,7 @@ nd6_cache_lladdr(struct ifnet *ifp, stru
 	int do_update;
 	int olladdr;
 	int llchange;
-	int flags = 0;
+	int flags;
 	int newstate = 0;
 	uint16_t router = 0;
 	struct sockaddr_in6 sin6;
@@ -1478,13 +1479,13 @@ nd6_cache_lladdr(struct ifnet *ifp, stru
 	 * Spec says nothing in sections for RA, RS and NA.  There's small
 	 * description on it in NS section (RFC 2461 7.2.3).
 	 */
-	flags |= lladdr ? ND6_EXCLUSIVE : 0;
+	flags = lladdr ? ND6_EXCLUSIVE : 0;
 	IF_AFDATA_LOCK(ifp);
 	ln = nd6_lookup(from, flags, ifp);
 
 	if (ln == NULL) {
-		flags |= LLE_EXCLUSIVE;
-		ln = nd6_lookup(from, flags |ND6_CREATE, ifp);
+		flags |= ND6_EXCLUSIVE;
+		ln = nd6_lookup(from, flags | ND6_CREATE, ifp);
 		IF_AFDATA_UNLOCK(ifp);
 		is_newentry = 1;
 	} else {