cfg80211: move cfg80211_get_dev_from_ifindex under wext
The function is only used and needed by the wext code
for scanning, so move it there.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index fd99ea4..2ce44a7 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -1040,6 +1040,27 @@
EXPORT_SYMBOL(cfg80211_unlink_bss);
#ifdef CONFIG_CFG80211_WEXT
+static struct cfg80211_registered_device *
+cfg80211_get_dev_from_ifindex(struct net *net, int ifindex)
+{
+ struct cfg80211_registered_device *rdev = ERR_PTR(-ENODEV);
+ struct net_device *dev;
+
+ mutex_lock(&cfg80211_mutex);
+ dev = dev_get_by_index(net, ifindex);
+ if (!dev)
+ goto out;
+ if (dev->ieee80211_ptr) {
+ rdev = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
+ mutex_lock(&rdev->mtx);
+ } else
+ rdev = ERR_PTR(-ENODEV);
+ dev_put(dev);
+ out:
+ mutex_unlock(&cfg80211_mutex);
+ return rdev;
+}
+
int cfg80211_wext_siwscan(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *wrqu, char *extra)