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-rw-r--r--net/mac80211/mesh.c38
1 files changed, 17 insertions, 21 deletions
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index f70e9cd..6495a3f 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -366,20 +366,15 @@ int mesh_add_rsn_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb)
return 0;
/* find RSN IE */
- data = ifmsh->ie;
- while (data < ifmsh->ie + ifmsh->ie_len) {
- if (*data == WLAN_EID_RSN) {
- len = data[1] + 2;
- break;
- }
- data++;
- }
+ data = cfg80211_find_ie(WLAN_EID_RSN, ifmsh->ie, ifmsh->ie_len);
+ if (!data)
+ return 0;
- if (len) {
- if (skb_tailroom(skb) < len)
- return -ENOMEM;
- memcpy(skb_put(skb, len), data, len);
- }
+ len = data[1] + 2;
+
+ if (skb_tailroom(skb) < len)
+ return -ENOMEM;
+ memcpy(skb_put(skb, len), data, len);
return 0;
}
@@ -684,7 +679,7 @@ ieee80211_mesh_build_beacon(struct ieee80211_if_mesh *ifmsh)
*pos++ = 0x0;
*pos++ = ieee80211_frequency_to_channel(
csa->settings.chandef.chan->center_freq);
- sdata->csa_counter_offset_beacon = hdr_len + 6;
+ sdata->csa_counter_offset_beacon[0] = hdr_len + 6;
*pos++ = csa->settings.count;
*pos++ = WLAN_EID_CHAN_SWITCH_PARAM;
*pos++ = 6;
@@ -829,7 +824,7 @@ void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
bcn = rcu_dereference_protected(ifmsh->beacon,
lockdep_is_held(&sdata->wdev.mtx));
- rcu_assign_pointer(ifmsh->beacon, NULL);
+ RCU_INIT_POINTER(ifmsh->beacon, NULL);
kfree_rcu(bcn, rcu_head);
/* flush STAs and mpaths on this iface */
@@ -903,14 +898,15 @@ ieee80211_mesh_process_chnswitch(struct ieee80211_sub_if_data *sdata,
}
err = cfg80211_chandef_dfs_required(sdata->local->hw.wiphy,
- &params.chandef);
+ &params.chandef,
+ NL80211_IFTYPE_MESH_POINT);
if (err < 0)
return false;
- if (err) {
- params.radar_required = true;
+ if (err > 0)
/* TODO: DFS not (yet) supported */
return false;
- }
+
+ params.radar_required = err;
if (cfg80211_chandef_identical(&params.chandef,
&sdata->vif.bss_conf.chandef)) {
@@ -1068,7 +1064,7 @@ int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata)
/* Remove the CSA and MCSP elements from the beacon */
tmp_csa_settings = rcu_dereference(ifmsh->csa);
- rcu_assign_pointer(ifmsh->csa, NULL);
+ RCU_INIT_POINTER(ifmsh->csa, NULL);
if (tmp_csa_settings)
kfree_rcu(tmp_csa_settings, rcu_head);
ret = ieee80211_mesh_rebuild_beacon(sdata);
@@ -1102,7 +1098,7 @@ int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
ret = ieee80211_mesh_rebuild_beacon(sdata);
if (ret) {
tmp_csa_settings = rcu_dereference(ifmsh->csa);
- rcu_assign_pointer(ifmsh->csa, NULL);
+ RCU_INIT_POINTER(ifmsh->csa, NULL);
kfree_rcu(tmp_csa_settings, rcu_head);
return ret;
}
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