mac80211: use common skb queue
IBSS, managed and mesh modes all have an
skb queue, and in the future we want to
also use it in other modes, so make them
all use a common skb queue already.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index d7a96ce..a9ff904 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -779,7 +779,7 @@
return;
ifibss = &sdata->u.ibss;
- while ((skb = skb_dequeue(&ifibss->skb_queue)))
+ while ((skb = skb_dequeue(&sdata->skb_queue)))
ieee80211_ibss_rx_queued_mgmt(sdata, skb);
if (!test_and_clear_bit(IEEE80211_IBSS_REQ_RUN, &ifibss->request))
@@ -850,7 +850,6 @@
INIT_WORK(&ifibss->work, ieee80211_ibss_work);
setup_timer(&ifibss->timer, ieee80211_ibss_timer,
(unsigned long) sdata);
- skb_queue_head_init(&ifibss->skb_queue);
}
/* scan finished notification */
@@ -890,7 +889,7 @@
case IEEE80211_STYPE_BEACON:
case IEEE80211_STYPE_PROBE_REQ:
case IEEE80211_STYPE_AUTH:
- skb_queue_tail(&sdata->u.ibss.skb_queue, skb);
+ skb_queue_tail(&sdata->skb_queue, skb);
ieee80211_queue_work(&local->hw, &sdata->u.ibss.work);
return RX_QUEUED;
}
@@ -983,7 +982,7 @@
synchronize_rcu();
kfree_skb(skb);
- skb_queue_purge(&sdata->u.ibss.skb_queue);
+ skb_queue_purge(&sdata->skb_queue);
memset(sdata->u.ibss.bssid, 0, ETH_ALEN);
sdata->u.ibss.ssid_len = 0;
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 5782a53..3cc3867 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -340,8 +340,6 @@
u16 aid;
- struct sk_buff_head skb_queue;
-
unsigned long timers_running; /* used for quiesce/restart */
bool powersave; /* powersave requested for this iface */
enum ieee80211_smps_mode req_smps, /* requested smps mode */
@@ -388,8 +386,6 @@
struct timer_list timer;
struct work_struct work;
- struct sk_buff_head skb_queue;
-
unsigned long request;
unsigned long last_scan_completed;
@@ -420,7 +416,6 @@
struct timer_list housekeeping_timer;
struct timer_list mesh_path_timer;
struct timer_list mesh_path_root_timer;
- struct sk_buff_head skb_queue;
unsigned long timers_running;
@@ -517,6 +512,8 @@
u16 sequence_number;
+ struct sk_buff_head skb_queue;
+
/*
* AP this belongs to: self in AP mode and
* corresponding AP in VLAN mode, NULL for
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 906fc2b..56167a3 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -465,21 +465,11 @@
cancel_work_sync(&sdata->u.mgd.monitor_work);
cancel_work_sync(&sdata->u.mgd.beacon_connection_loss_work);
- /*
- * When we get here, the interface is marked down.
- * Call synchronize_rcu() to wait for the RX path
- * should it be using the interface and enqueuing
- * frames at this very time on another CPU.
- */
- synchronize_rcu();
- skb_queue_purge(&sdata->u.mgd.skb_queue);
/* fall through */
case NL80211_IFTYPE_ADHOC:
if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
del_timer_sync(&sdata->u.ibss.timer);
cancel_work_sync(&sdata->u.ibss.work);
- synchronize_rcu();
- skb_queue_purge(&sdata->u.ibss.skb_queue);
}
/* fall through */
case NL80211_IFTYPE_MESH_POINT:
@@ -495,6 +485,15 @@
}
/* fall through */
default:
+ /*
+ * When we get here, the interface is marked down.
+ * Call synchronize_rcu() to wait for the RX path
+ * should it be using the interface and enqueuing
+ * frames at this very time on another CPU.
+ */
+ synchronize_rcu();
+ skb_queue_purge(&sdata->skb_queue);
+
if (local->scan_sdata == sdata)
ieee80211_scan_cancel(local);
@@ -721,6 +720,8 @@
/* only monitor differs */
sdata->dev->type = ARPHRD_ETHER;
+ skb_queue_head_init(&sdata->skb_queue);
+
switch (type) {
case NL80211_IFTYPE_AP:
skb_queue_head_init(&sdata->u.ap.ps_bc_buf);
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index bde8103..065533a 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -537,15 +537,6 @@
* it no longer is.
*/
cancel_work_sync(&sdata->u.mesh.work);
-
- /*
- * When we get here, the interface is marked down.
- * Call synchronize_rcu() to wait for the RX path
- * should it be using the interface and enqueuing
- * frames at this very time on another CPU.
- */
- rcu_barrier(); /* Wait for RX path and call_rcu()'s */
- skb_queue_purge(&sdata->u.mesh.skb_queue);
}
static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
@@ -650,7 +641,7 @@
if (local->scanning)
return;
- while ((skb = skb_dequeue(&ifmsh->skb_queue)))
+ while ((skb = skb_dequeue(&sdata->skb_queue)))
ieee80211_mesh_rx_queued_mgmt(sdata, skb);
if (ifmsh->preq_queue_len &&
@@ -690,7 +681,6 @@
setup_timer(&ifmsh->housekeeping_timer,
ieee80211_mesh_housekeeping_timer,
(unsigned long) sdata);
- skb_queue_head_init(&sdata->u.mesh.skb_queue);
ifmsh->mshcfg.dot11MeshRetryTimeout = MESH_RET_T;
ifmsh->mshcfg.dot11MeshConfirmTimeout = MESH_CONF_T;
@@ -750,7 +740,7 @@
case IEEE80211_STYPE_ACTION:
case IEEE80211_STYPE_PROBE_RESP:
case IEEE80211_STYPE_BEACON:
- skb_queue_tail(&ifmsh->skb_queue, skb);
+ skb_queue_tail(&sdata->skb_queue, skb);
ieee80211_queue_work(&local->hw, &ifmsh->work);
return RX_QUEUED;
}
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 0154d74..854ef4e 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1652,7 +1652,7 @@
case IEEE80211_STYPE_DEAUTH:
case IEEE80211_STYPE_DISASSOC:
case IEEE80211_STYPE_ACTION:
- skb_queue_tail(&sdata->u.mgd.skb_queue, skb);
+ skb_queue_tail(&sdata->skb_queue, skb);
ieee80211_queue_work(&local->hw, &sdata->u.mgd.work);
return RX_QUEUED;
}
@@ -1810,7 +1810,7 @@
ifmgd = &sdata->u.mgd;
/* first process frames to avoid timing out while a frame is pending */
- while ((skb = skb_dequeue(&ifmgd->skb_queue)))
+ while ((skb = skb_dequeue(&sdata->skb_queue)))
ieee80211_sta_rx_queued_mgmt(sdata, skb);
/* then process the rest of the work */
@@ -1967,7 +1967,6 @@
(unsigned long) sdata);
setup_timer(&ifmgd->chswitch_timer, ieee80211_chswitch_timer,
(unsigned long) sdata);
- skb_queue_head_init(&ifmgd->skb_queue);
ifmgd->flags = 0;