mac80211: do not send duplicate data frames to the cooked monitor interface

I can't think of a valid use case for this aside from debugging (which can
also be done with a real monitor interface), and dropping these frames saves
some precious CPU cycles.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index b37c3415f0ea..753ffc41c1aa 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -815,7 +815,7 @@ ieee80211_rx_h_check(struct ieee80211_rx_data *rx)
                                 rx->local->dot11FrameDuplicateCount++;
                                 rx->sta->num_duplicates++;
                         }
-                        return RX_DROP_MONITOR;
+                        return RX_DROP_UNUSABLE;
                 } else
                         rx->sta->last_seq_ctrl[rx->queue] = hdr->seq_ctrl;
         }