Linux Kernel  3.7.1
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ap.c
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1 #include <linux/ieee80211.h>
2 #include <linux/export.h>
3 #include <net/cfg80211.h>
4 #include "nl80211.h"
5 #include "core.h"
6 
7 
8 static int __cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
9  struct net_device *dev)
10 {
11  struct wireless_dev *wdev = dev->ieee80211_ptr;
12  int err;
13 
14  ASSERT_WDEV_LOCK(wdev);
15 
16  if (!rdev->ops->stop_ap)
17  return -EOPNOTSUPP;
18 
19  if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
20  dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
21  return -EOPNOTSUPP;
22 
23  if (!wdev->beacon_interval)
24  return -ENOENT;
25 
26  err = rdev->ops->stop_ap(&rdev->wiphy, dev);
27  if (!err) {
28  wdev->beacon_interval = 0;
29  wdev->channel = NULL;
30  }
31 
32  return err;
33 }
34 
36  struct net_device *dev)
37 {
38  struct wireless_dev *wdev = dev->ieee80211_ptr;
39  int err;
40 
41  wdev_lock(wdev);
42  err = __cfg80211_stop_ap(rdev, dev);
43  wdev_unlock(wdev);
44 
45  return err;
46 }