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