net: ipv4: fib_trie: Don't unnecessarily search for already found fib leaf

We've already found leaf, don't search for it again. Same is for fib leaf info.

Signed-off-by: Igor Maravic <igorm@etf.rs>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 4 deletions

diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index f84a0e90d675..4587d344046d 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -1656,7 +1656,12 @@ int fib_table_delete(struct fib_table *tb, struct fib_config *cfg)
         if (!l)
                 return -ESRCH;
 
-        fa_head = get_fa_head(l, plen);
+        li = find_leaf_info(l, plen);
+
+        if (!li)
+                return -ESRCH;
+
+        fa_head = &li->falh;
         fa = fib_find_alias(fa_head, tos, 0);
 
         if (!fa)
@@ -1692,9 +1697,6 @@ int fib_table_delete(struct fib_table *tb, struct fib_config *cfg)
         rtmsg_fib(RTM_DELROUTE, htonl(key), fa, plen, tb->tb_id,
                   &cfg->fc_nlinfo, 0);
 
-        l = fib_find_node(t, key);
-        li = find_leaf_info(l, plen);
-
         list_del_rcu(&fa->fa_list);
 
         if (!plen)