cfg80211: show interface type

This patch makes cfg80211 show the interface in the nl80211
information about a specific interface. API users are required
to keep the type updated (everything else is fairly complicated)
but you will get a warning if you fail to keep it updated.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

2 files changed, 6 insertions, 2 deletions

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 9f40c4d417d7..0e85ec39b638 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -363,11 +363,13 @@ struct wiphy;
  * wireless extensions but this is subject to reevaluation as soon as this
  * code is used more widely and we have a first user without wext.
  *
- * @add_virtual_intf: create a new virtual interface with the given name
+ * @add_virtual_intf: create a new virtual interface with the given name,
+ *      must set the struct wireless_dev's iftype.
  *
  * @del_virtual_intf: remove the virtual interface determined by ifindex.
  *
- * @change_virtual_intf: change type of virtual interface
+ * @change_virtual_intf: change type/configuration of virtual interface,
+ *      keep the struct wireless_dev's iftype updated.
  *
  * @add_key: add a key with the given parameters. @mac_addr will be %NULL
  *      when adding a group key.
diff --git a/include/net/wireless.h b/include/net/wireless.h
index 0de7fde9f336..721efb363db7 100644
--- a/include/net/wireless.h
+++ b/include/net/wireless.h
@@ -223,9 +223,11 @@ struct wiphy {
  * the netdev.)
  *
  * @wiphy: pointer to hardware description
+ * @iftype: interface type
  */
 struct wireless_dev {
         struct wiphy *wiphy;
+        enum nl80211_iftype iftype;
 
         /* private to the generic wireless code */
         struct list_head list;