| From: Felix Fietkau <nbd@nbd.name> |
| 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 <nbd@nbd.name> |
| --- |
| |
| --- 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; |