net: netrom: use seq_hlist_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/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 71604c6..a249127 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -1267,28 +1267,13 @@
static void *nr_info_start(struct seq_file *seq, loff_t *pos)
{
- struct sock *s;
- struct hlist_node *node;
- int i = 1;
-
spin_lock_bh(&nr_list_lock);
- if (*pos == 0)
- return SEQ_START_TOKEN;
-
- sk_for_each(s, node, &nr_list) {
- if (i == *pos)
- return s;
- ++i;
- }
- return NULL;
+ return seq_hlist_start_head(&nr_list, *pos);
}
static void *nr_info_next(struct seq_file *seq, void *v, loff_t *pos)
{
- ++*pos;
-
- return (v == SEQ_START_TOKEN) ? sk_head(&nr_list)
- : sk_next((struct sock *)v);
+ return seq_hlist_next(v, &nr_list, pos);
}
static void nr_info_stop(struct seq_file *seq, void *v)
@@ -1298,7 +1283,7 @@
static int nr_info_show(struct seq_file *seq, void *v)
{
- struct sock *s = v;
+ struct sock *s = sk_entry(v);
struct net_device *dev;
struct nr_sock *nr;
const char *devname;