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>

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 5c1930ba8ebe98d1727d014a182e9057d00bced4..82414a6368241b0921eee5a87f13349add729644 100644 (file)
--- 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) {