DHDAXCW-Rockchip-OpenWrt/package/kernel/mac80211/patches/subsys/377-mac80211-minstrel_ht-fix-sample-time-check.patch
Beginner 5a80754f03
mac80211: system hang caused by deferring calls into minstrel to dequeue (#7057)
Move the aggregation check to mac80211

Signed-off-by: Felix Fietkau <nbd@nbd.name>

Co-authored-by: Felix Fietkau <nbd@nbd.name>
2021-06-18 10:12:55 +08:00

24 lines
881 B
Diff

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
@@ -1466,7 +1466,7 @@ 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;