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| author | Li Zefan <lizf@cn.fujitsu.com> | 2010-02-08 23:21:05 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-02-10 12:31:09 -0800 |
| commit | 216437eb8b5adf12ab91e1f0c046ffba22c63431 (patch) | |
| tree | 6bfea9fd0043d77e95635b273ce07eb20cfc5f3a | |
| parent | 4f134204f740d9fbf992843a6615175f5105f49e (diff) | |
| download | linux-3.10-216437eb8b5adf12ab91e1f0c046ffba22c63431.tar.gz linux-3.10-216437eb8b5adf12ab91e1f0c046ffba22c63431.tar.bz2 linux-3.10-216437eb8b5adf12ab91e1f0c046ffba22c63431.zip | |
net: irda: 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>
| -rw-r--r-- | net/irda/irlan/irlan_common.c | 28 |
1 files changed, 4 insertions, 24 deletions
diff --git a/net/irda/irlan/irlan_common.c b/net/irda/irlan/irlan_common.c index 315ead3cb92..e486dc89ea5 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;); |