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mac80211: fix station rate table updates on assoc 

If the driver uses .sta_add, station entries are only uploaded after the sta
is in assoc state. Fix early station rate table updates by deferring them
until the sta has been uploaded

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2021-02-01 09:59:49 +01:00
parent 8019c54d8a
commit 84fa59b5a8
1 changed files with 38 additions and 0 deletions
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38
package/kernel/mac80211/patches/subsys/353-mac80211-fix-station-rate-table-updates-on-assoc.patch Normal file
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@ -0,0 +1,38 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Mon, 1 Feb 2021 00:59:14 +0100
Subject: [PATCH] mac80211: fix station rate table updates on assoc
If the driver uses .sta_add, station entries are only uploaded after the sta
is in assoc state. Fix early station rate table updates by deferring them
until the sta has been uploaded
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/net/mac80211/driver-ops.c
+++ b/net/mac80211/driver-ops.c
@@ -125,8 +125,11 @@ int drv_sta_state(struct ieee80211_local
} else if (old_state == IEEE80211_STA_AUTH &&
new_state == IEEE80211_STA_ASSOC) {
ret = drv_sta_add(local, sdata, &sta->sta);
- if (ret == 0)
+ if (ret == 0) {
sta->uploaded = true;
+ if (rcu_dereference(sta->sta.rates))
+ drv_sta_rate_tbl_update(local, sdata, &sta->sta);
+ }
} else if (old_state == IEEE80211_STA_ASSOC &&
new_state == IEEE80211_STA_AUTH) {
drv_sta_remove(local, sdata, &sta->sta);
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -934,7 +934,8 @@ int rate_control_set_rates(struct ieee80
if (old)
kfree_rcu(old, rcu_head);
- drv_sta_rate_tbl_update(hw_to_local(hw), sta->sdata, pubsta);
+ if (sta->uploaded)
+ drv_sta_rate_tbl_update(hw_to_local(hw), sta->sdata, pubsta);
ieee80211_sta_set_expected_throughput(pubsta, sta_get_expected_throughput(sta));