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Diffstat (limited to 'net/wireless/wext.c')
-rw-r--r--net/wireless/wext.c48
1 files changed, 41 insertions, 7 deletions
diff --git a/net/wireless/wext.c b/net/wireless/wext.c
index 0e59f9ae9b81..252c2010c2e2 100644
--- a/net/wireless/wext.c
+++ b/net/wireless/wext.c
@@ -636,8 +636,10 @@ static void wireless_seq_printf_stats(struct seq_file *seq,
/*
* Print info for /proc/net/wireless (print all entries)
*/
-static int wireless_seq_show(struct seq_file *seq, void *v)
+static int wireless_dev_seq_show(struct seq_file *seq, void *v)
{
+ might_sleep();
+
if (v == SEQ_START_TOKEN)
seq_printf(seq, "Inter-| sta-| Quality | Discarded "
"packets | Missed | WE\n"
@@ -649,14 +651,46 @@ static int wireless_seq_show(struct seq_file *seq, void *v)
return 0;
}
+static void *wireless_dev_seq_start(struct seq_file *seq, loff_t *pos)
+{
+ struct net *net = seq_file_net(seq);
+ loff_t off;
+ struct net_device *dev;
+
+ rtnl_lock();
+ if (!*pos)
+ return SEQ_START_TOKEN;
+
+ off = 1;
+ for_each_netdev(net, dev)
+ if (off++ == *pos)
+ return dev;
+ return NULL;
+}
+
+static void *wireless_dev_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+ struct net *net = seq_file_net(seq);
+
+ ++*pos;
+
+ return v == SEQ_START_TOKEN ?
+ first_net_device(net) : next_net_device(v);
+}
+
+static void wireless_dev_seq_stop(struct seq_file *seq, void *v)
+{
+ rtnl_unlock();
+}
+
static const struct seq_operations wireless_seq_ops = {
- .start = dev_seq_start,
- .next = dev_seq_next,
- .stop = dev_seq_stop,
- .show = wireless_seq_show,
+ .start = wireless_dev_seq_start,
+ .next = wireless_dev_seq_next,
+ .stop = wireless_dev_seq_stop,
+ .show = wireless_dev_seq_show,
};
-static int wireless_seq_open(struct inode *inode, struct file *file)
+static int seq_open_wireless(struct inode *inode, struct file *file)
{
return seq_open_net(inode, file, &wireless_seq_ops,
sizeof(struct seq_net_private));
@@ -664,7 +698,7 @@ static int wireless_seq_open(struct inode *inode, struct file *file)
static const struct file_operations wireless_seq_fops = {
.owner = THIS_MODULE,
- .open = wireless_seq_open,
+ .open = seq_open_wireless,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release_net,