diff options
| author | Oldřich Jedlička <oldium.pro@gmail.com> | 2023-11-04 15:13:33 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2023-11-24 18:28:29 +0100 |
| commit | 3e3a2b645c043f7e3e488d5011478cefb69bbe8b (patch) | |
| tree | 273d905eb9ed3fee4bc01623749ce152f6f371e4 /net/mac80211 | |
| parent | 71b5e40651d89a8685bea1592dfcd2aa61559628 (diff) | |
| download | linux-3e3a2b645c043f7e3e488d5011478cefb69bbe8b.tar.gz | |
wifi: mac80211: do not pass AP_VLAN vif pointer to drivers during flush
This fixes WARN_ONs when using AP_VLANs after station removal. The flush
call passed AP_VLAN vif to driver, but because these vifs are virtual and
not registered with drivers, we need to translate to the correct AP vif
first.
Closes: https://github.com/openwrt/openwrt/issues/12420
Fixes: 0b75a1b1e42e ("wifi: mac80211: flush queues on STA removal")
Fixes: d00800a289c9 ("wifi: mac80211: add flush_sta method")
Tested-by: Konstantin Demin <rockdrilla@gmail.com>
Tested-by: Koen Vandeputte <koen.vandeputte@citymesh.com>
Signed-off-by: Oldřich Jedlička <oldium.pro@gmail.com>
Link: https://lore.kernel.org/r/20231104141333.3710-1-oldium.pro@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
| -rw-r--r-- | net/mac80211/driver-ops.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h index 568633b38c473..f690c385a345a 100644 --- a/net/mac80211/driver-ops.h +++ b/net/mac80211/driver-ops.h @@ -23,7 +23,7 @@ static inline struct ieee80211_sub_if_data * get_bss_sdata(struct ieee80211_sub_if_data *sdata) { - if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) + if (sdata && sdata->vif.type == NL80211_IFTYPE_AP_VLAN) sdata = container_of(sdata->bss, struct ieee80211_sub_if_data, u.ap); @@ -695,11 +695,14 @@ static inline void drv_flush(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata, u32 queues, bool drop) { - struct ieee80211_vif *vif = sdata ? &sdata->vif : NULL; + struct ieee80211_vif *vif; might_sleep(); lockdep_assert_wiphy(local->hw.wiphy); + sdata = get_bss_sdata(sdata); + vif = sdata ? &sdata->vif : NULL; + if (sdata && !check_sdata_in_driver(sdata)) return; @@ -716,6 +719,8 @@ static inline void drv_flush_sta(struct ieee80211_local *local, might_sleep(); lockdep_assert_wiphy(local->hw.wiphy); + sdata = get_bss_sdata(sdata); + if (sdata && !check_sdata_in_driver(sdata)) return; |