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Subject[PATCH 03/13] net: x25: use seq_hlist_foo() helpers
Simplify seq_file code.

Signed-off-by: Li Zefan <lizf@cn.fujtisu.com>
---
net/x25/x25_proc.c | 30 +++---------------------------
1 files changed, 3 insertions(+), 27 deletions(-)
diff --git a/net/x25/x25_proc.c b/net/x25/x25_proc.c
index 0a04e62..c4cd322 100644
--- a/net/x25/x25_proc.c
+++ b/net/x25/x25_proc.c
@@ -93,40 +93,16 @@ out:
return 0;
}

-static __inline__ struct sock *x25_get_socket_idx(loff_t pos)
-{
- struct sock *s;
- struct hlist_node *node;
-
- sk_for_each(s, node, &x25_list)
- if (!pos--)
- goto found;
- s = NULL;
-found:
- return s;
-}
-
static void *x25_seq_socket_start(struct seq_file *seq, loff_t *pos)
__acquires(x25_list_lock)
{
- loff_t l = *pos;
-
read_lock_bh(&x25_list_lock);
- return l ? x25_get_socket_idx(--l) : SEQ_START_TOKEN;
+ return seq_hlist_start_head(&x25_list, *pos);
}

static void *x25_seq_socket_next(struct seq_file *seq, void *v, loff_t *pos)
{
- struct sock *s;
-
- ++*pos;
- if (v == SEQ_START_TOKEN) {
- s = sk_head(&x25_list);
- goto out;
- }
- s = sk_next(v);
-out:
- return s;
+ return seq_hlist_next(v, &x25_list, pos);
}

static void x25_seq_socket_stop(struct seq_file *seq, void *v)
@@ -148,7 +124,7 @@ static int x25_seq_socket_show(struct seq_file *seq, void *v)
goto out;
}

- s = v;
+ s = sk_entry(v);
x25 = x25_sk(s);

if (!x25->neighbour || (dev = x25->neighbour->dev) == NULL)
--
1.6.3


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