From: "baker.zhang" <baker.ker...@gmail.com>
This is a enhancement.
for the first node in fib_trie, newpos is 0, bit is 1.
Only for the leaf or node with unmatched key need calc pos.
Signed-off-by: baker.zhang <baker.ker...@gmail.com>
---
net/ipv4/fib_trie.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 45c74ba..ec9a9ef 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -1117,12 +1117,8 @@ static struct list_head *fib_insert_node(struct trie *t,
u32 key, int plen)
* first tnode need some special handling
*/
- if (tp)
- pos = tp->pos+tp->bits;
- else
- pos = 0;
-
if (n) {
+ pos = tp ? tp->pos+tp->bits : 0;
newpos = tkey_mismatch(key, pos, n->key);
tn = tnode_new(n->key, newpos, 1);
} else {
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
