diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 96d8310..f90ab52 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -1,9 +1,9 @@
 /*
- *	Linux INET6 implementation 
+ *	Linux INET6 implementation
  *	Forwarding Information Database
  *
  *	Authors:
- *	Pedro Roque		<roque@di.fc.ul.pt>	
+ *	Pedro Roque		<roque@di.fc.ul.pt>
  *
  *	$Id: ip6_fib.c,v 1.25 2001/10/31 21:55:55 davem Exp $
  *
@@ -97,7 +97,7 @@
 
 static struct fib6_walker_t fib6_walker_list = {
 	.prev	= &fib6_walker_list,
-	.next	= &fib6_walker_list, 
+	.next	= &fib6_walker_list,
 };
 
 #define FOR_WALKERS(w) for ((w)=fib6_walker_list.next; (w) != &fib6_walker_list; (w)=(w)->next)
@@ -131,7 +131,7 @@
 /*
  *	Auxiliary address test functions for the radix tree.
  *
- *	These assume a 32bit processor (although it will work on 
+ *	These assume a 32bit processor (although it will work on
  *	64bit processors)
  */
 
@@ -434,7 +434,7 @@
 	struct fib6_node *pn = NULL;
 	struct rt6key *key;
 	int	bit;
-       	__be32	dir = 0;
+	__be32	dir = 0;
 	__u32	sernum = fib6_new_sernum();
 
 	RT6_TRACE("fib6_add_1\n");
@@ -452,27 +452,27 @@
 		if (plen < fn->fn_bit ||
 		    !ipv6_prefix_equal(&key->addr, addr, fn->fn_bit))
 			goto insert_above;
-		
+
 		/*
 		 *	Exact match ?
 		 */
-			 
+
 		if (plen == fn->fn_bit) {
 			/* clean up an intermediate node */
 			if ((fn->fn_flags & RTN_RTINFO) == 0) {
 				rt6_release(fn->leaf);
 				fn->leaf = NULL;
 			}
-			
+
 			fn->fn_sernum = sernum;
-				
+
 			return fn;
 		}
 
 		/*
 		 *	We have more bits to go
 		 */
-			 
+
 		/* Try to walk down on tree. */
 		fn->fn_sernum = sernum;
 		dir = addr_bit_set(addr, fn->fn_bit);
@@ -490,7 +490,7 @@
 	if (ln == NULL)
 		return NULL;
 	ln->fn_bit = plen;
-			
+
 	ln->parent = pn;
 	ln->fn_sernum = sernum;
 
@@ -504,7 +504,7 @@
 
 insert_above:
 	/*
-	 * split since we don't have a common prefix anymore or 
+	 * split since we don't have a common prefix anymore or
 	 * we have a less significant route.
 	 * we've to insert an intermediate node on the list
 	 * this new node will point to the one we need to create
@@ -518,18 +518,18 @@
 	   See comment in __ipv6_addr_diff: bit may be an invalid value,
 	   but if it is >= plen, the value is ignored in any case.
 	 */
-	
+
 	bit = __ipv6_addr_diff(addr, &key->addr, addrlen);
 
-	/* 
-	 *		(intermediate)[in]	
+	/*
+	 *		(intermediate)[in]
 	 *	          /	   \
 	 *	(new leaf node)[ln] (old node)[fn]
 	 */
 	if (plen > bit) {
 		in = node_alloc();
 		ln = node_alloc();
-		
+
 		if (in == NULL || ln == NULL) {
 			if (in)
 				node_free(in);
@@ -538,8 +538,8 @@
 			return NULL;
 		}
 
-		/* 
-		 * new intermediate node. 
+		/*
+		 * new intermediate node.
 		 * RTN_RTINFO will
 		 * be off since that an address that chooses one of
 		 * the branches would not match less specific routes
@@ -576,7 +576,7 @@
 		}
 	} else { /* plen <= bit */
 
-		/* 
+		/*
 		 *		(new leaf node)[ln]
 		 *	          /	   \
 		 *	     (old node)[fn] NULL
@@ -592,7 +592,7 @@
 		ln->parent = pn;
 
 		ln->fn_sernum = sernum;
-		
+
 		if (dir)
 			pn->right = ln;
 		else
@@ -1206,7 +1206,7 @@
  *	However, it is internally reenterable wrt itself and fib6_add/fib6_del.
  *	It means, that we can modify tree during walking
  *	and use this function for garbage collection, clone pruning,
- *	cleaning tree when a device goes down etc. etc.	
+ *	cleaning tree when a device goes down etc. etc.
  *
  *	It guarantees that every node will be traversed,
  *	and that it will be traversed only once.
@@ -1245,7 +1245,7 @@
 				continue;
 			}
 			w->state = FWS_L;
-#endif	
+#endif
 		case FWS_L:
 			if (fn->left) {
 				w->node = fn->left;
@@ -1338,7 +1338,7 @@
 
 /*
  *	Convenient frontend to tree walker.
- *	
+ *
  *	func is called on each route.
  *		It may return -1 -> delete this route.
  *		              0  -> continue walking