Make FIB TRIE go through sparse checker without warnings.

Signed-off-by: Stephen Hemminger <stephen.hemminger@vyatta.com>

--- a/net/ipv4/fib_trie.c	2008-01-11 22:35:37.000000000 -0800
+++ b/net/ipv4/fib_trie.c	2008-01-11 22:41:57.000000000 -0800
@@ -653,7 +653,6 @@ static struct node *resize(struct trie *
 
 static struct tnode *inflate(struct trie *t, struct tnode *tn)
 {
-	struct tnode *inode;
 	struct tnode *oldtnode = tn;
 	int olen = tnode_child_length(tn);
 	int i;
@@ -701,6 +700,7 @@ static struct tnode *inflate(struct trie
 	}
 
 	for (i = 0; i < olen; i++) {
+		struct tnode *inode;
 		struct node *node = tnode_get_child(oldtnode, i);
 		struct tnode *left, *right;
 		int size, j;
@@ -1037,8 +1037,7 @@ static struct list_head *fib_insert_node
 	/* Case 1: n is a leaf. Compare prefixes */
 
 	if (n != NULL && IS_LEAF(n) && tkey_equals(key, n->key)) {
-		struct leaf *l = (struct leaf *) n;
-
+		l = (struct leaf *) n;
 		li = leaf_info_new(plen);
 
 		if (!li)
@@ -2231,6 +2230,7 @@ static struct node *fib_trie_get_idx(str
 }
 
 static void *fib_trie_seq_start(struct seq_file *seq, loff_t *pos)
+	__acquires(RCU)
 {
 	struct fib_trie_iter *iter = seq->private;
 	struct fib_table *tb;
@@ -2273,6 +2273,7 @@ static void *fib_trie_seq_next(struct se
 }
 
 static void fib_trie_seq_stop(struct seq_file *seq, void *v)
+	__releases(RCU)
 {
 	rcu_read_unlock();
 }

-- 
Stephen Hemminger <stephen.hemminger@vyatta.com>

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