mac80211: optimise mixed AP/VLAN station removal
Teach sta_info_flush() to optionally also remove stations
from all VLANs associated with an AP interface to optimise
the station removal (in particular, synchronize_net().)
To not have to add the vlans argument throughout, do some
refactoring.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index e11bdb6..18b56fb 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1097,9 +1097,7 @@
if (old_probe_resp)
kfree_rcu(old_probe_resp, rcu_head);
- list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
- sta_info_flush(vlan);
- sta_info_flush(sdata);
+ __sta_info_flush(sdata, true);
synchronize_net();
list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
ieee80211_free_keys(vlan);