From: Johannes Berg <johannes.berg@xxxxxxxxx>
When we have multiple interfaces receiving the same frame,
such as a multicast frame, one interface might have a sta
and the other not. In this case, link_sta would be set but
not cleared again.
Always set link_sta, so we keep an invariant that link_sta
and sta are either both set or both not set.
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
net/mac80211/rx.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 69aa623163c6..f7fdfe710951 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -4125,6 +4125,8 @@ static bool ieee80211_rx_data_set_sta(struct ieee80211_rx_data *rx,
if (!rx->sdata)
rx->sdata = sta->sdata;
rx->link_sta = &sta->deflink;
+ } else {
+ rx->link_sta = NULL;
}
if (link_id < 0)
--
2.39.1
