mac80211: reassign channel contexts before stations

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@intel.com>

1 files changed, 17 insertions, 11 deletions

diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 01b9fa62f3e3..4e4f58513673 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1422,6 +1422,23 @@ 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) {
@@ -1462,22 +1479,11 @@ 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 |