From 216437eb8b5adf12ab91e1f0c046ffba22c63431 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Mon, 8 Feb 2010 23:21:05 +0000 Subject: [PATCH] net: irda: use seq_list_foo() helpers Simplify seq_file code. Signed-off-by: Li Zefan Signed-off-by: David S. Miller --- net/irda/irlan/irlan_common.c | 28 ++++------------------------ 1 file changed, 4 insertions(+), 24 deletions(-) diff --git a/net/irda/irlan/irlan_common.c b/net/irda/irlan/irlan_common.c index 315ead3cb926..e486dc89ea59 100644 --- a/net/irda/irlan/irlan_common.c +++ b/net/irda/irlan/irlan_common.c @@ -1128,34 +1128,14 @@ int irlan_extract_param(__u8 *buf, char *name, char *value, __u16 *len) */ static void *irlan_seq_start(struct seq_file *seq, loff_t *pos) { - int i = 1; - struct irlan_cb *self; - rcu_read_lock(); - if (*pos == 0) - return SEQ_START_TOKEN; - - list_for_each_entry(self, &irlans, dev_list) { - if (*pos == i) - return self; - ++i; - } - return NULL; + return seq_list_start_head(&irlans, *pos); } /* Return entry after v, and increment pos */ static void *irlan_seq_next(struct seq_file *seq, void *v, loff_t *pos) { - struct list_head *nxt; - - ++*pos; - if (v == SEQ_START_TOKEN) - nxt = irlans.next; - else - nxt = ((struct irlan_cb *)v)->dev_list.next; - - return (nxt == &irlans) ? NULL - : list_entry(nxt, struct irlan_cb, dev_list); + return seq_list_next(v, &irlans, pos); } /* End of reading /proc file */ @@ -1170,10 +1150,10 @@ static void irlan_seq_stop(struct seq_file *seq, void *v) */ static int irlan_seq_show(struct seq_file *seq, void *v) { - if (v == SEQ_START_TOKEN) + if (v == &irlans) seq_puts(seq, "IrLAN instances:\n"); else { - struct irlan_cb *self = v; + struct irlan_cb *self = list_entry(v, struct irlan_cb, dev_list); IRDA_ASSERT(self != NULL, return -1;); IRDA_ASSERT(self->magic == IRLAN_MAGIC, return -1;); -- 2.30.2