1 From: Felix Fietkau <nbd@nbd.name>
2 Date: Thu, 17 Jun 2021 12:05:54 +0200
3 Subject: [PATCH] mac80211: minstrel_ht: fix sample time check
5 We need to skip sampling if the next sample time is after jiffies, not before.
6 This patch fixes an issue where in some cases only very little sampling (or none
7 at all) is performed, leading to really bad data rates
9 Fixes: 80d55154b2f8 ("mac80211: minstrel_ht: significantly redesign the rate probing strategy")
10 Signed-off-by: Felix Fietkau <nbd@nbd.name>
13 --- a/net/mac80211/rc80211_minstrel_ht.c
14 +++ b/net/mac80211/rc80211_minstrel_ht.c
15 @@ -1450,7 +1450,7 @@ minstrel_ht_get_rate(void *priv, struct
16 (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO))
19 - if (time_is_before_jiffies(mi->sample_time))
20 + if (time_is_after_jiffies(mi->sample_time))
23 mi->sample_time = jiffies + MINSTREL_SAMPLE_INTERVAL;