mac80211: add comment about reordering

Took me a minute to figure this out, maybe
it's better documented...

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

1 files changed, 2 insertions, 0 deletions

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 5c1930ba8ebe..82414a636824 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -706,6 +706,8 @@ static bool ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
         /*
          * If the current MPDU is in the right order and nothing else
          * is stored we can process it directly, no need to buffer it.
+         * If it is first but there's something stored, we may be able
+         * to release frames after this one.
          */
         if (mpdu_seq_num == tid_agg_rx->head_seq_num &&
             tid_agg_rx->stored_mpdu_num == 0) {