mac80211: implement off-channel mgmt TX
This implements the new off-channel TX API
in mac80211 with a new work item type. The
operation doesn't add a new work item when
we're on the right channel and there's no
wait time so that for example p2p probe
responses will be transmitted without delay.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index bed7e32..4958710 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -321,10 +321,23 @@
msecs_to_jiffies(10));
}
- if (info->flags & IEEE80211_TX_INTFL_NL80211_FRAME_TX)
+ if (info->flags & IEEE80211_TX_INTFL_NL80211_FRAME_TX) {
+ struct ieee80211_work *wk;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(wk, &local->work_list, list) {
+ if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX)
+ continue;
+ if (wk->offchan_tx.frame != skb)
+ continue;
+ wk->offchan_tx.frame = NULL;
+ break;
+ }
+ rcu_read_unlock();
cfg80211_mgmt_tx_status(
skb->dev, (unsigned long) skb, skb->data, skb->len,
!!(info->flags & IEEE80211_TX_STAT_ACK), GFP_ATOMIC);
+ }
/* this was a transmitted frame, but now we want to reuse it */
skb_orphan(skb);