[-mm patch] net/ipv6/ip6_fib.c: make code static

Adrian Bunk
2006-08-13T21:02:05Z

On Sun, Aug 13, 2006 at 01:24:54AM -0700, Andrew Morton wrote:
>...
> Changes since 2.6.18-rc3-mm2:
>...
> git-net.patch
>...
> git trees
>...

This patch makes 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>

---

include/net/ip6_fib.h | 25 -------------------------
net/ipv6/ip6_fib.c | 29 ++++++++++++++++++++++++-----
2 files changed, 24 insertions(+), 30 deletions(-)

--- linux-2.6.18-rc4-mm1/include/net/ip6_fib.h.old 2006-08-13 20:25:29.000000000 +0200
+++ linux-2.6.18-rc4-mm1/include/net/ip6_fib.h 2006-08-13 20:29:34.000000000 +0200
@@ -92,28 +92,6 @@
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 @@
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,
--- linux-2.6.18-rc4-mm1/net/ipv6/ip6_fib.c.old 2006-08-13 20:26:04.000000000 +0200
+++ linux-2.6.18-rc4-mm1/net/ipv6/ip6_fib.c 2006-08-13 20:29:35.000000000 +0200
@@ -69,8 +69,7 @@
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 @@

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 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 @@
* <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(struct fib6_walker_t *w)
+static int fib6_walk(struct fib6_walker_t *w)
{
int res;