mac80211: support P2P Device abstraction

After cfg80211 got a P2P Device abstraction, add
support to mac80211. Whether it really is supported
or not will depend on whether or not the driver has
support for it, but mac80211 needs to change to be
able to support drivers that need a P2P Device.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 2a80698..0b81fa8 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1080,6 +1080,8 @@
 	struct idr ack_status_frames;
 	spinlock_t ack_status_lock;
 
+	struct ieee80211_sub_if_data __rcu *p2p_sdata;
+
 	/* dummy netdev for use w/ NAPI */
 	struct net_device napi_dev;
 
@@ -1296,6 +1298,8 @@
 void ieee80211_recalc_idle(struct ieee80211_local *local);
 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
 				    const int offset);
+int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
+void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
 
 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
 {