net: atm: use seq_list_foo() helpers

Simplify seq_file code.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/atm/proc.c b/net/atm/proc.c
index 476779d845ebd1a7b6f676473554c32a72439317..7a96b2376bd7223ad951e66a4ad441fccbb32d0d 100644 (file)
--- a/net/atm/proc.c
+++ b/net/atm/proc.c
@@ -238,7 +238,7 @@ static int atm_dev_seq_show(struct seq_file *seq, void *v)
                "Itf Type    ESI/\"MAC\"addr "
                "AAL(TX,err,RX,err,drop) ...               [refcnt]\n";
 
-       if (v == SEQ_START_TOKEN)
+       if (v == &atm_devs)
                seq_puts(seq, atm_dev_banner);
        else {
                struct atm_dev *dev = list_entry(v, struct atm_dev, dev_list);

diff --git a/net/atm/resources.c b/net/atm/resources.c
index 447ed89205d8e4ef5a43e7614de049838e69056d..90082904f20d55df42fc83903f569d08db3e6e93 100644 (file)
--- a/net/atm/resources.c
+++ b/net/atm/resources.c
@@ -444,21 +444,10 @@ done:
        return error;
 }
 
-static inline void *dev_get_idx(loff_t left)
-{
-       struct list_head *p;
-
-       list_for_each(p, &atm_devs) {
-               if (!--left)
-                       break;
-       }
-       return (p != &atm_devs) ? p : NULL;
-}
-
 void *atm_dev_seq_start(struct seq_file *seq, loff_t *pos)
 {
        mutex_lock(&atm_dev_mutex);
-       return *pos ? dev_get_idx(*pos) : SEQ_START_TOKEN;
+       return seq_list_start_head(&atm_devs, *pos);
 }
 
 void atm_dev_seq_stop(struct seq_file *seq, void *v)
@@ -468,8 +457,5 @@ void atm_dev_seq_stop(struct seq_file *seq, void *v)
 
 void *atm_dev_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 {
-       ++*pos;
-       v = (v == SEQ_START_TOKEN)
-               ? atm_devs.next : ((struct list_head *)v)->next;
-       return (v == &atm_devs) ? NULL : v;
+       return seq_list_next(v, &atm_devs, pos);
 }