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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>
This commit is contained in:
Johannes Berg 2012-11-07 12:40:41 +01:00
parent 8b2c98243e
commit 6352c87ff6
1 changed files with 17 additions and 11 deletions
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28
net/mac80211/util.c
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@ -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 |