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Diffstat (limited to 'net/mac80211/sta_info.c')
-rw-r--r--net/mac80211/sta_info.c55
1 files changed, 34 insertions, 21 deletions
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 7d4fe4a52929..f2ba653b9d69 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -135,6 +135,7 @@ struct sta_info *sta_info_get_by_idx(struct ieee80211_local *local, int idx,
/**
* __sta_info_free - internal STA free helper
*
+ * @local: pointer to the global information
* @sta: STA info to free
*
* This function must undo everything done by sta_info_alloc()
@@ -202,14 +203,12 @@ void sta_info_destroy(struct sta_info *sta)
dev_kfree_skb_any(skb);
for (i = 0; i < STA_TID_NUM; i++) {
- spin_lock_bh(&sta->ampdu_mlme.ampdu_rx);
+ spin_lock_bh(&sta->lock);
if (sta->ampdu_mlme.tid_rx[i])
del_timer_sync(&sta->ampdu_mlme.tid_rx[i]->session_timer);
- spin_unlock_bh(&sta->ampdu_mlme.ampdu_rx);
- spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
if (sta->ampdu_mlme.tid_tx[i])
del_timer_sync(&sta->ampdu_mlme.tid_tx[i]->addba_resp_timer);
- spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
+ spin_unlock_bh(&sta->lock);
}
__sta_info_free(local, sta);
@@ -236,6 +235,9 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
if (!sta)
return NULL;
+ spin_lock_init(&sta->lock);
+ spin_lock_init(&sta->flaglock);
+
memcpy(sta->addr, addr, ETH_ALEN);
sta->local = local;
sta->sdata = sdata;
@@ -249,15 +251,13 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
return NULL;
}
- spin_lock_init(&sta->ampdu_mlme.ampdu_rx);
- spin_lock_init(&sta->ampdu_mlme.ampdu_tx);
for (i = 0; i < STA_TID_NUM; i++) {
/* timer_to_tid must be initialized with identity mapping to
* enable session_timer's data differentiation. refer to
* sta_rx_agg_session_timer_expired for useage */
sta->timer_to_tid[i] = i;
/* tid to tx queue: initialize according to HW (0 is valid) */
- sta->tid_to_tx_q[i] = local->hw.queues;
+ sta->tid_to_tx_q[i] = ieee80211_num_queues(&local->hw);
/* rx */
sta->ampdu_mlme.tid_state_rx[i] = HT_AGG_STATE_IDLE;
sta->ampdu_mlme.tid_rx[i] = NULL;
@@ -276,7 +276,6 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
#ifdef CONFIG_MAC80211_MESH
sta->plink_state = PLINK_LISTEN;
- spin_lock_init(&sta->plink_lock);
init_timer(&sta->plink_timer);
#endif
@@ -321,7 +320,9 @@ int sta_info_insert(struct sta_info *sta)
/* notify driver */
if (local->ops->sta_notify) {
if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
- sdata = sdata->u.vlan.ap;
+ sdata = container_of(sdata->bss,
+ struct ieee80211_sub_if_data,
+ u.ap);
local->ops->sta_notify(local_to_hw(local), &sdata->vif,
STA_NOTIFY_ADD, sta->addr);
@@ -376,8 +377,10 @@ static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, u16 aid)
static void __sta_info_set_tim_bit(struct ieee80211_if_ap *bss,
struct sta_info *sta)
{
- if (bss)
- __bss_tim_set(bss, sta->aid);
+ BUG_ON(!bss);
+
+ __bss_tim_set(bss, sta->aid);
+
if (sta->local->ops->set_tim) {
sta->local->tim_in_locked_section = true;
sta->local->ops->set_tim(local_to_hw(sta->local), sta->aid, 1);
@@ -389,6 +392,8 @@ void sta_info_set_tim_bit(struct sta_info *sta)
{
unsigned long flags;
+ BUG_ON(!sta->sdata->bss);
+
spin_lock_irqsave(&sta->local->sta_lock, flags);
__sta_info_set_tim_bit(sta->sdata->bss, sta);
spin_unlock_irqrestore(&sta->local->sta_lock, flags);
@@ -397,8 +402,10 @@ void sta_info_set_tim_bit(struct sta_info *sta)
static void __sta_info_clear_tim_bit(struct ieee80211_if_ap *bss,
struct sta_info *sta)
{
- if (bss)
- __bss_tim_clear(bss, sta->aid);
+ BUG_ON(!bss);
+
+ __bss_tim_clear(bss, sta->aid);
+
if (sta->local->ops->set_tim) {
sta->local->tim_in_locked_section = true;
sta->local->ops->set_tim(local_to_hw(sta->local), sta->aid, 0);
@@ -410,6 +417,8 @@ void sta_info_clear_tim_bit(struct sta_info *sta)
{
unsigned long flags;
+ BUG_ON(!sta->sdata->bss);
+
spin_lock_irqsave(&sta->local->sta_lock, flags);
__sta_info_clear_tim_bit(sta->sdata->bss, sta);
spin_unlock_irqrestore(&sta->local->sta_lock, flags);
@@ -437,10 +446,10 @@ void __sta_info_unlink(struct sta_info **sta)
list_del(&(*sta)->list);
- if ((*sta)->flags & WLAN_STA_PS) {
- (*sta)->flags &= ~WLAN_STA_PS;
- if (sdata->bss)
- atomic_dec(&sdata->bss->num_sta_ps);
+ if (test_and_clear_sta_flags(*sta, WLAN_STA_PS)) {
+ BUG_ON(!sdata->bss);
+
+ atomic_dec(&sdata->bss->num_sta_ps);
__sta_info_clear_tim_bit(sdata->bss, *sta);
}
@@ -448,7 +457,9 @@ void __sta_info_unlink(struct sta_info **sta)
if (local->ops->sta_notify) {
if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
- sdata = sdata->u.vlan.ap;
+ sdata = container_of(sdata->bss,
+ struct ieee80211_sub_if_data,
+ u.ap);
local->ops->sta_notify(local_to_hw(local), &sdata->vif,
STA_NOTIFY_REMOVE, (*sta)->addr);
@@ -515,20 +526,20 @@ static inline int sta_info_buffer_expired(struct ieee80211_local *local,
struct sta_info *sta,
struct sk_buff *skb)
{
- struct ieee80211_tx_packet_data *pkt_data;
+ struct ieee80211_tx_info *info;
int timeout;
if (!skb)
return 0;
- pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
+ info = IEEE80211_SKB_CB(skb);
/* Timeout: (2 * listen_interval * beacon_int * 1024 / 1000000) sec */
timeout = (sta->listen_interval * local->hw.conf.beacon_int * 32 /
15625) * HZ;
if (timeout < STA_TX_BUFFER_EXPIRE)
timeout = STA_TX_BUFFER_EXPIRE;
- return time_after(jiffies, pkt_data->jiffies + timeout);
+ return time_after(jiffies, info->control.jiffies + timeout);
}
@@ -557,8 +568,10 @@ static void sta_info_cleanup_expire_buffered(struct ieee80211_local *local,
sdata = sta->sdata;
local->total_ps_buffered--;
+#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
printk(KERN_DEBUG "Buffered frame expired (STA "
"%s)\n", print_mac(mac, sta->addr));
+#endif
dev_kfree_skb(skb);
if (skb_queue_empty(&sta->ps_tx_buf))
generated by cgit v1.2.3 (git 2.0.4) at 2024-06-12 14:40:40 +0000