net: appletalk: 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>

1 files changed, 3 insertions, 27 deletions

diff --git a/net/appletalk/atalk_proc.c b/net/appletalk/atalk_proc.c
index 80caad1a31a5..6ef0e761e5de 100644
--- a/net/appletalk/atalk_proc.c
+++ b/net/appletalk/atalk_proc.c
@@ -144,40 +144,16 @@ out:
         return 0;
 }
 
-static __inline__ struct sock *atalk_get_socket_idx(loff_t pos)
-{
-        struct sock *s;
-        struct hlist_node *node;
-
-        sk_for_each(s, node, &atalk_sockets)
-                if (!pos--)
-                        goto found;
-        s = NULL;
-found:
-        return s;
-}
-
 static void *atalk_seq_socket_start(struct seq_file *seq, loff_t *pos)
         __acquires(atalk_sockets_lock)
 {
-        loff_t l = *pos;
-
         read_lock_bh(&atalk_sockets_lock);
-        return l ? atalk_get_socket_idx(--l) : SEQ_START_TOKEN;
+        return seq_hlist_start_head(&atalk_sockets, *pos);
 }
 
 static void *atalk_seq_socket_next(struct seq_file *seq, void *v, loff_t *pos)
 {
-        struct sock *i;
-
-        ++*pos;
-        if (v == SEQ_START_TOKEN) {
-                i = sk_head(&atalk_sockets);
-                goto out;
-        }
-        i = sk_next(v);
-out:
-        return i;
+        return seq_hlist_next(v, &atalk_sockets, pos);
 }
 
 static void atalk_seq_socket_stop(struct seq_file *seq, void *v)
@@ -197,7 +173,7 @@ static int atalk_seq_socket_show(struct seq_file *seq, void *v)
                 goto out;
         }
 
-        s = v;
+        s = sk_entry(v);
         at = at_sk(s);
 
         seq_printf(seq, "%02X   %04X:%02X:%02X  %04X:%02X:%02X  %08X:%08X "