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-rw-r--r--package/kernel/mac80211/patches/subsys/352-mac80211-minstrel_ht-fix-regression-in-the-max_prob_.patch23
1 files changed, 23 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/subsys/352-mac80211-minstrel_ht-fix-regression-in-the-max_prob_.patch b/package/kernel/mac80211/patches/subsys/352-mac80211-minstrel_ht-fix-regression-in-the-max_prob_.patch
new file mode 100644
index 0000000000..a366a921d4
--- /dev/null
+++ b/package/kernel/mac80211/patches/subsys/352-mac80211-minstrel_ht-fix-regression-in-the-max_prob_.patch
@@ -0,0 +1,23 @@
+From: Felix Fietkau <nbd@nbd.name>
+Date: Tue, 26 Jan 2021 16:40:52 +0100
+Subject: [PATCH] mac80211: minstrel_ht: fix regression in the max_prob_rate
+ fix
+
+Since mi->max_prob_rate is overwritten after the loop that calls
+minstrel_ht_set_best_prob_rate, the new best rate needs to be written to *dest
+
+Fixes: a7fca4e4037f ("mac80211: minstrel_ht: fix max probability rate selection")
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/net/mac80211/rc80211_minstrel_ht.c
++++ b/net/mac80211/rc80211_minstrel_ht.c
+@@ -545,7 +545,7 @@ minstrel_ht_set_best_prob_rate(struct mi
+ cur_tp_avg = minstrel_ht_get_tp_avg(mi, cur_group, cur_idx,
+ mrs->prob_avg);
+ if (cur_tp_avg > tmp_tp_avg)
+- mi->max_prob_rate = index;
++ *dest = index;
+
+ max_gpr_tp_avg = minstrel_ht_get_tp_avg(mi, max_gpr_group,
+ max_gpr_idx,