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-rw-r--r--net/mac80211/rc80211_minstrel_ht.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index 2b42564d6e29..16e0b277b9a8 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -568,6 +568,13 @@ minstrel_get_sample_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi)
minstrel_next_sample_idx(mi);
/*
+ * Sampling might add some overhead (RTS, no aggregation)
+ * to the frame. Hence, don't use sampling for the currently
+ * used max TP rate.
+ */
+ if (sample_idx == mi->max_tp_rate)
+ return -1;
+ /*
* When not using MRR, do not sample if the probability is already
* higher than 95% to avoid wasting airtime
*/
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