From: Johannes Berg <johannes.berg@xxxxxxxxx>
Since channel contexts are usually present before
stations can be added to an interface, reassign
before stations them in reconfiguration as well.
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
net/mac80211/util.c | 28 +++++++++++++++++-----------
1 file changed, 17 insertions(+), 11 deletions(-)
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 690e474..af38c6f 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1429,6 +1429,23 @@ int ieee80211_reconfig(struct ieee80211_local *local)
WARN_ON(drv_add_chanctx(local, ctx));
mutex_unlock(&local->chanctx_mtx);
+ list_for_each_entry(sdata, &local->interfaces, list) {
+ struct ieee80211_chanctx_conf *ctx_conf;
+
+ if (!ieee80211_sdata_running(sdata))
+ continue;
+
+ mutex_lock(&local->chanctx_mtx);
+ ctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
+ lockdep_is_held(&local->chanctx_mtx));
+ if (ctx_conf) {
+ ctx = container_of(ctx_conf, struct ieee80211_chanctx,
+ conf);
+ drv_assign_vif_chanctx(local, sdata, ctx);
+ }
+ mutex_unlock(&local->chanctx_mtx);
+ }
+
/* add STAs back */
mutex_lock(&local->sta_mtx);
list_for_each_entry(sta, &local->sta_list, list) {
@@ -1469,22 +1486,11 @@ int ieee80211_reconfig(struct ieee80211_local *local)
/* Finally also reconfigure all the BSS information */
list_for_each_entry(sdata, &local->interfaces, list) {
- struct ieee80211_chanctx_conf *ctx_conf;
u32 changed;
if (!ieee80211_sdata_running(sdata))
continue;
- mutex_lock(&local->chanctx_mtx);
- ctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
- lockdep_is_held(&local->chanctx_mtx));
- if (ctx_conf) {
- ctx = container_of(ctx_conf, struct ieee80211_chanctx,
- conf);
- drv_assign_vif_chanctx(local, sdata, ctx);
- }
- mutex_unlock(&local->chanctx_mtx);
-
/* common change flags for all interface types */
changed = BSS_CHANGED_ERP_CTS_PROT |
BSS_CHANGED_ERP_PREAMBLE |
--
1.8.0
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