mac80211: move blockack stop due to fragmentation

There's a corner case where we receive a fragmented
frame during a blockack session, in which case we
will terminate that session. To simplify future work
in this area that will culminate in allowing the
driver callbacks for aggregation to sleep, move the
processing of this case out of the RX path into the
interface work.

This will simplify future work because the new place
for this code doesn't require that the function will
always be atomic, which the RX path needs.

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

1 files changed, 2 insertions, 3 deletions

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 435c2166e0c5..b716fa2370b3 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -741,9 +741,8 @@ static void ieee80211_rx_reorder_ampdu(struct ieee80211_rx_data *rx,
         sc = le16_to_cpu(hdr->seq_ctrl);
         if (sc & IEEE80211_SCTL_FRAG) {
                 spin_unlock(&sta->lock);
-                __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
-                                               WLAN_REASON_QSTA_REQUIRE_SETUP);
-                dev_kfree_skb(skb);
+                skb_queue_tail(&rx->sdata->skb_queue, skb);
+                ieee80211_queue_work(&local->hw, &rx->sdata->work);
                 return;
         }