fib_trie: Move fib_find_alias to file where it is used

The function fib_find_alias is only accessed by functions in fib_trie.c as
such it makes sense to relocate it and cast it as static so that the
compiler can take advantage of optimizations it can do to it as a local
function.

Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 20 insertions, 19 deletions

diff --git a/net/ipv4/fib_lookup.h b/net/ipv4/fib_lookup.h
index 1e4f6600b31d..825981b1049a 100644
--- a/net/ipv4/fib_lookup.h
+++ b/net/ipv4/fib_lookup.h
@@ -32,7 +32,6 @@ int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event, u32 tb_id,
                   unsigned int);
 void rtmsg_fib(int event, __be32 key, struct fib_alias *fa, int dst_len,
                u32 tb_id, const struct nl_info *info, unsigned int nlm_flags);
-struct fib_alias *fib_find_alias(struct list_head *fah, u8 tos, u32 prio);
 
 static inline void fib_result_assign(struct fib_result *res,
                                      struct fib_info *fi)
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 265cb72b7c1b..1e2090ea663e 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -411,24 +411,6 @@ errout:
                 rtnl_set_sk_err(info->nl_net, RTNLGRP_IPV4_ROUTE, err);
 }
 
-/* Return the first fib alias matching TOS with
- * priority less than or equal to PRIO.
- */
-struct fib_alias *fib_find_alias(struct list_head *fah, u8 tos, u32 prio)
-{
-        if (fah) {
-                struct fib_alias *fa;
-                list_for_each_entry(fa, fah, fa_list) {
-                        if (fa->fa_tos > tos)
-                                continue;
-                        if (fa->fa_info->fib_priority >= prio ||
-                            fa->fa_tos < tos)
-                                return fa;
-                }
-        }
-        return NULL;
-}
-
 static int fib_detect_death(struct fib_info *fi, int order,
                             struct fib_info **last_resort, int *last_idx,
                             int dflt)
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 90654bb64e21..7f342265968e 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -998,6 +998,26 @@ static struct tnode *fib_find_node(struct trie *t, u32 key)
         return n;
 }
 
+/* Return the first fib alias matching TOS with
+ * priority less than or equal to PRIO.
+ */
+static struct fib_alias *fib_find_alias(struct list_head *fah, u8 tos, u32 prio)
+{
+        struct fib_alias *fa;
+
+        if (!fah)
+                return NULL;
+
+        list_for_each_entry(fa, fah, fa_list) {
+                if (fa->fa_tos > tos)
+                        continue;
+                if (fa->fa_info->fib_priority >= prio || fa->fa_tos < tos)
+                        return fa;
+        }
+
+        return NULL;
+}
+
 static void trie_rebalance(struct trie *t, struct tnode *tn)
 {
         struct tnode *tp;