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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: 80d55154b2 ("mac80211: minstrel_ht: significantly redesign the rate probing strategy")
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20210617103854.61875-1-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Felix Fietkau 2021-06-17 12:38:54 +02:00 committed by Johannes Berg
parent 1c200f832e
commit 1236af327a
1 changed files with 1 additions and 1 deletions
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2
net/mac80211/rc80211_minstrel_ht.c
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@ -1514,7 +1514,7 @@ minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
(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;