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>

1 files changed, 15 insertions, 7 deletions

diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index 8cd72914cdaf..b0801b7d572d 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -519,19 +519,27 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
                 u64 cookie = (unsigned long)skb;
                 acked = info->flags & IEEE80211_TX_STAT_ACK;
 
-                /*
-                 * TODO: When we have non-netdev frame TX,
-                 * we cannot use skb->dev->ieee80211_ptr
-                 */
-
                 if (ieee80211_is_nullfunc(hdr->frame_control) ||
-                    ieee80211_is_qos_nullfunc(hdr->frame_control))
+                    ieee80211_is_qos_nullfunc(hdr->frame_control)) {
                         cfg80211_probe_status(skb->dev, hdr->addr1,
                                               cookie, acked, GFP_ATOMIC);
-                else
+                } else if (skb->dev) {
                         cfg80211_mgmt_tx_status(
                                 skb->dev->ieee80211_ptr, cookie, skb->data,
                                 skb->len, acked, GFP_ATOMIC);
+                } else {
+                        struct ieee80211_sub_if_data *p2p_sdata;
+
+                        rcu_read_lock();
+
+                        p2p_sdata = rcu_dereference(local->p2p_sdata);
+                        if (p2p_sdata) {
+                                cfg80211_mgmt_tx_status(
+                                        &p2p_sdata->wdev, cookie, skb->data,
+                                        skb->len, acked, GFP_ATOMIC);
+                        }
+                        rcu_read_unlock();
+                }
         }
 
         if (unlikely(info->ack_frame_id)) {