mac80211: consolidate MBSS change notification
A few mesh utility functions will call
ieee80211_bss_info_change_notify(), and then the caller
might notify the driver of the same change again. Avoid
this redundancy by propagating the BSS changes and
generally calling bss_info_change_notify() once per
change.
Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index 56c9b31..a4c7a7e 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -202,7 +202,7 @@
mesh_path_flush_by_nexthop(sta);
ieee80211_mps_sta_status_update(sta);
- ieee80211_mps_local_status_update(sdata);
+ changed |= ieee80211_mps_local_status_update(sdata);
return changed;
}
@@ -494,6 +494,7 @@
struct ieee802_11_elems *elems)
{
struct sta_info *sta;
+ u32 changed = 0;
sta = mesh_sta_info_get(sdata, hw_addr, elems);
if (!sta)
@@ -504,11 +505,12 @@
sdata->u.mesh.accepting_plinks &&
sdata->u.mesh.mshcfg.auto_open_plinks &&
rssi_threshold_check(sta, sdata))
- mesh_plink_open(sta);
+ changed = mesh_plink_open(sta);
ieee80211_mps_frame_release(sta, elems);
out:
rcu_read_unlock();
+ ieee80211_bss_info_change_notify(sdata, changed);
}
static void mesh_plink_timer(unsigned long data)
@@ -621,13 +623,14 @@
add_timer(&sta->plink_timer);
}
-int mesh_plink_open(struct sta_info *sta)
+u32 mesh_plink_open(struct sta_info *sta)
{
__le16 llid;
struct ieee80211_sub_if_data *sdata = sta->sdata;
+ u32 changed;
if (!test_sta_flag(sta, WLAN_STA_AUTH))
- return -EPERM;
+ return 0;
spin_lock_bh(&sta->lock);
get_random_bytes(&llid, 2);
@@ -635,7 +638,7 @@
if (sta->plink_state != NL80211_PLINK_LISTEN &&
sta->plink_state != NL80211_PLINK_BLOCKED) {
spin_unlock_bh(&sta->lock);
- return -EBUSY;
+ return 0;
}
sta->plink_state = NL80211_PLINK_OPN_SNT;
mesh_plink_timer_set(sta, sdata->u.mesh.mshcfg.dot11MeshRetryTimeout);
@@ -645,15 +648,15 @@
sta->sta.addr);
/* set the non-peer mode to active during peering */
- ieee80211_mps_local_status_update(sdata);
+ changed = ieee80211_mps_local_status_update(sdata);
- return mesh_plink_frame_tx(sdata, WLAN_SP_MESH_PEERING_OPEN,
- sta->sta.addr, llid, 0, 0);
+ mesh_plink_frame_tx(sdata, WLAN_SP_MESH_PEERING_OPEN,
+ sta->sta.addr, llid, 0, 0);
+ return changed;
}
-void mesh_plink_block(struct sta_info *sta)
+u32 mesh_plink_block(struct sta_info *sta)
{
- struct ieee80211_sub_if_data *sdata = sta->sdata;
u32 changed;
spin_lock_bh(&sta->lock);
@@ -661,7 +664,7 @@
sta->plink_state = NL80211_PLINK_BLOCKED;
spin_unlock_bh(&sta->lock);
- ieee80211_bss_info_change_notify(sdata, changed);
+ return changed;
}
@@ -882,7 +885,7 @@
mshcfg->dot11MeshRetryTimeout);
/* set the non-peer mode to active during peering */
- ieee80211_mps_local_status_update(sdata);
+ changed |= ieee80211_mps_local_status_update(sdata);
spin_unlock_bh(&sta->lock);
mesh_plink_frame_tx(sdata,
@@ -978,7 +981,7 @@
mpl_dbg(sdata, "Mesh plink with %pM ESTABLISHED\n",
sta->sta.addr);
ieee80211_mps_sta_status_update(sta);
- ieee80211_mps_set_sta_local_pm(sta,
+ changed |= ieee80211_mps_set_sta_local_pm(sta,
mshcfg->power_mode);
break;
default:
@@ -1020,8 +1023,8 @@
WLAN_SP_MESH_PEERING_CONFIRM,
sta->sta.addr, llid, plid, 0);
ieee80211_mps_sta_status_update(sta);
- ieee80211_mps_set_sta_local_pm(sta,
- mshcfg->power_mode);
+ changed |= ieee80211_mps_set_sta_local_pm(sta,
+ mshcfg->power_mode);
break;
default:
spin_unlock_bh(&sta->lock);