[IPV6] ip6_fib.c: make code static

Make the following needlessly global code static:
- fib6_walker_lock
- struct fib6_walker_list
- fib6_walk_continue()
- fib6_walk()

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 24 insertions, 30 deletions

diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h
index c0660cea9a2f..69c444209781 100644
--- a/include/net/ip6_fib.h
+++ b/include/net/ip6_fib.h
@@ -92,28 +92,6 @@ struct fib6_walker_t
         void *args;
 };
 
-extern struct fib6_walker_t fib6_walker_list;
-extern rwlock_t fib6_walker_lock;
-
-static inline void fib6_walker_link(struct fib6_walker_t *w)
-{
-        write_lock_bh(&fib6_walker_lock);
-        w->next = fib6_walker_list.next;
-        w->prev = &fib6_walker_list;
-        w->next->prev = w;
-        w->prev->next = w;
-        write_unlock_bh(&fib6_walker_lock);
-}
-
-static inline void fib6_walker_unlink(struct fib6_walker_t *w)
-{
-        write_lock_bh(&fib6_walker_lock);
-        w->next->prev = w->prev;
-        w->prev->next = w->next;
-        w->prev = w->next = w;
-        write_unlock_bh(&fib6_walker_lock);
-}
-
 struct rt6_statistics {
         __u32           fib_nodes;
         __u32           fib_route_nodes;
@@ -195,9 +173,6 @@ struct fib6_node		*fib6_locate(struct fib6_node *root,
 extern void                     fib6_clean_all(int (*func)(struct rt6_info *, void *arg),
                                                int prune, void *arg);
 
-extern int                      fib6_walk(struct fib6_walker_t *w);
-extern int                      fib6_walk_continue(struct fib6_walker_t *w);
-
 extern int                      fib6_add(struct fib6_node *root,
                                          struct rt6_info *rt,
                                          struct nlmsghdr *nlh,
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index bececbe9dd2c..be36f4acda94 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -69,8 +69,7 @@ struct fib6_cleaner_t
         void *arg;
 };
 
-DEFINE_RWLOCK(fib6_walker_lock);
-
+static DEFINE_RWLOCK(fib6_walker_lock);
 
 #ifdef CONFIG_IPV6_SUBTREES
 #define FWS_INIT FWS_S
@@ -82,6 +81,8 @@ DEFINE_RWLOCK(fib6_walker_lock);
 
 static void fib6_prune_clones(struct fib6_node *fn, struct rt6_info *rt);
 static struct fib6_node * fib6_repair_tree(struct fib6_node *fn);
+static int fib6_walk(struct fib6_walker_t *w);
+static int fib6_walk_continue(struct fib6_walker_t *w);
 
 /*
  *      A routing update causes an increase of the serial number on the
@@ -94,13 +95,31 @@ static __u32 rt_sernum;
 
 static DEFINE_TIMER(ip6_fib_timer, fib6_run_gc, 0, 0);
 
-struct fib6_walker_t fib6_walker_list = {
+static struct fib6_walker_t fib6_walker_list = {
         .prev   = &fib6_walker_list,
         .next   = &fib6_walker_list, 
 };
 
 #define FOR_WALKERS(w) for ((w)=fib6_walker_list.next; (w) != &fib6_walker_list; (w)=(w)->next)
 
+static inline void fib6_walker_link(struct fib6_walker_t *w)
+{
+        write_lock_bh(&fib6_walker_lock);
+        w->next = fib6_walker_list.next;
+        w->prev = &fib6_walker_list;
+        w->next->prev = w;
+        w->prev->next = w;
+        write_unlock_bh(&fib6_walker_lock);
+}
+
+static inline void fib6_walker_unlink(struct fib6_walker_t *w)
+{
+        write_lock_bh(&fib6_walker_lock);
+        w->next->prev = w->prev;
+        w->prev->next = w->next;
+        w->prev = w->next = w;
+        write_unlock_bh(&fib6_walker_lock);
+}
 static __inline__ u32 fib6_new_sernum(void)
 {
         u32 n = ++rt_sernum;
@@ -1173,7 +1192,7 @@ int fib6_del(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr, struct ne
  *      <0  -> walk is terminated by an error.
  */
 
-int fib6_walk_continue(struct fib6_walker_t *w)
+static int fib6_walk_continue(struct fib6_walker_t *w)
 {
         struct fib6_node *fn, *pn;
 
@@ -1247,7 +1266,7 @@ int fib6_walk_continue(struct fib6_walker_t *w)
         }
 }
 
-int fib6_walk(struct fib6_walker_t *w)
+static int fib6_walk(struct fib6_walker_t *w)
 {
         int res;