struct ieee80211_tx_info *info;
struct p54_tx_info *range;
unsigned long flags;
- u32 freed = 0, last_addr = priv->rx_start;
- if (unlikely(!skb || !dev || !skb_queue_len(&priv->tx_queue)))
+ if (unlikely(!skb || !dev || skb_queue_empty(&priv->tx_queue)))
return;
- /*
- * don't try to free an already unlinked skb
+ /* There used to be a check here to see if the SKB was on the
+ * TX queue or not. This can never happen because all SKBs we
+ * see here successfully went through p54_assign_address()
+ * which means the SKB is on the ->tx_queue.
*/
- if (unlikely((!skb->next) || (!skb->prev)))
- return;
spin_lock_irqsave(&priv->tx_queue.lock, flags);
info = IEEE80211_SKB_CB(skb);
range = (void *)info->rate_driver_data;
- if (skb->prev != (struct sk_buff *)&priv->tx_queue) {
+ if (!skb_queue_is_first(&priv->tx_queue, skb)) {
struct ieee80211_tx_info *ni;
struct p54_tx_info *mr;
- ni = IEEE80211_SKB_CB(skb->prev);
+ ni = IEEE80211_SKB_CB(skb_queue_prev(&priv->tx_queue, skb));
mr = (struct p54_tx_info *)ni->rate_driver_data;
- last_addr = mr->end_addr;
}
- if (skb->next != (struct sk_buff *)&priv->tx_queue) {
+ if (!skb_queue_is_last(&priv->tx_queue, skb)) {
struct ieee80211_tx_info *ni;
struct p54_tx_info *mr;
- ni = IEEE80211_SKB_CB(skb->next);
+ ni = IEEE80211_SKB_CB(skb_queue_next(&priv->tx_queue, skb));
mr = (struct p54_tx_info *)ni->rate_driver_data;
- freed = mr->start_addr - last_addr;
- } else
- freed = priv->rx_end - last_addr;
+ }
__skb_unlink(skb, &priv->tx_queue);
spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
dev_kfree_skb_any(skb);
-
- if (freed >= priv->headroom + sizeof(struct p54_hdr) + 48 +
- IEEE80211_MAX_RTS_THRESHOLD + priv->tailroom)
- p54_wake_free_queues(dev);
+ p54_wake_free_queues(dev);
}
EXPORT_SYMBOL_GPL(p54_free_skb);
unsigned long flags;
spin_lock_irqsave(&priv->tx_queue.lock, flags);
- entry = priv->tx_queue.next;
- while (entry != (struct sk_buff *)&priv->tx_queue) {
+ skb_queue_walk(&priv->tx_queue, entry) {
struct p54_hdr *hdr = (struct p54_hdr *) entry->data;
if (hdr->req_id == req_id) {
spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
return entry;
}
- entry = entry->next;
}
spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
return NULL;
struct sk_buff *entry;
u32 addr = le32_to_cpu(hdr->req_id) - priv->headroom;
struct p54_tx_info *range = NULL;
- u32 freed = 0;
- u32 last_addr = priv->rx_start;
unsigned long flags;
int count, idx;
spin_lock_irqsave(&priv->tx_queue.lock, flags);
- entry = (struct sk_buff *) priv->tx_queue.next;
- while (entry != (struct sk_buff *)&priv->tx_queue) {
+ skb_queue_walk(&priv->tx_queue, entry) {
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(entry);
struct p54_hdr *entry_hdr;
struct p54_tx_data *entry_data;
unsigned int pad = 0, frame_len;
range = (void *)info->rate_driver_data;
- if (range->start_addr != addr) {
- last_addr = range->end_addr;
- entry = entry->next;
+ if (range->start_addr != addr)
continue;
- }
- if (entry->next != (struct sk_buff *)&priv->tx_queue) {
+ if (!skb_queue_is_last(&priv->tx_queue, entry)) {
struct ieee80211_tx_info *ni;
struct p54_tx_info *mr;
- ni = IEEE80211_SKB_CB(entry->next);
+ ni = IEEE80211_SKB_CB(skb_queue_next(&priv->tx_queue,
+ entry));
mr = (struct p54_tx_info *)ni->rate_driver_data;
- freed = mr->start_addr - last_addr;
- } else
- freed = priv->rx_end - last_addr;
+ }
- last_addr = range->end_addr;
__skb_unlink(entry, &priv->tx_queue);
spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
out:
- if (freed >= priv->headroom + sizeof(struct p54_hdr) + 48 +
- IEEE80211_MAX_RTS_THRESHOLD + priv->tailroom)
- p54_wake_free_queues(dev);
+ p54_wake_free_queues(dev);
}
static void p54_rx_eeprom_readback(struct ieee80211_hw *dev,
}
}
- entry = priv->tx_queue.next;
- while (left--) {
+ skb_queue_walk(&priv->tx_queue, entry) {
u32 hole_size;
info = IEEE80211_SKB_CB(entry);
range = (void *)info->rate_driver_data;
hole_size = range->start_addr - last_addr;
if (!target_skb && hole_size >= len) {
- target_skb = entry->prev;
+ target_skb = skb_queue_prev(&priv->tx_queue, entry);
hole_size -= len;
target_addr = last_addr;
}
largest_hole = max(largest_hole, hole_size);
last_addr = range->end_addr;
- entry = entry->next;
}
if (!target_skb && priv->rx_end - last_addr >= len) {
- target_skb = priv->tx_queue.prev;
+ target_skb = skb_peek_tail(&priv->tx_queue);
largest_hole = max(largest_hole, priv->rx_end - last_addr - len);
if (!skb_queue_empty(&priv->tx_queue)) {
info = IEEE80211_SKB_CB(target_skb);
static void p54_stop(struct ieee80211_hw *dev)
{
struct p54_common *priv = dev->priv;
- struct sk_buff *skb;
mutex_lock(&priv->conf_mutex);
priv->mode = NL80211_IFTYPE_UNSPECIFIED;
p54_tx_cancel(dev, priv->cached_beacon);
priv->stop(dev);
- while ((skb = skb_dequeue(&priv->tx_queue)))
- kfree_skb(skb);
+ skb_queue_purge(&priv->tx_queue);
priv->cached_beacon = NULL;
priv->tsf_high32 = priv->tsf_low32 = 0;
mutex_unlock(&priv->conf_mutex);
return ret;
}
-static int p54_config_interface(struct ieee80211_hw *dev,
- struct ieee80211_vif *vif,
- struct ieee80211_if_conf *conf)
-{
- struct p54_common *priv = dev->priv;
- int ret = 0;
-
- mutex_lock(&priv->conf_mutex);
- if (conf->changed & IEEE80211_IFCC_BSSID) {
- memcpy(priv->bssid, conf->bssid, ETH_ALEN);
- ret = p54_setup_mac(dev);
- if (ret)
- goto out;
- }
-
- if (conf->changed & IEEE80211_IFCC_BEACON) {
- ret = p54_scan(dev, P54_SCAN_EXIT, 0);
- if (ret)
- goto out;
- ret = p54_setup_mac(dev);
- if (ret)
- goto out;
- ret = p54_beacon_update(dev, vif);
- if (ret)
- goto out;
- ret = p54_set_edcf(dev);
- if (ret)
- goto out;
- }
-
-out:
- mutex_unlock(&priv->conf_mutex);
- return ret;
-}
-
static void p54_configure_filter(struct ieee80211_hw *dev,
unsigned int changed_flags,
unsigned int *total_flags,
u32 changed)
{
struct p54_common *priv = dev->priv;
+ int ret;
+
+ mutex_lock(&priv->conf_mutex);
+ if (changed & BSS_CHANGED_BSSID) {
+ memcpy(priv->bssid, info->bssid, ETH_ALEN);
+ ret = p54_setup_mac(dev);
+ if (ret)
+ goto out;
+ }
- if (changed & BSS_CHANGED_ERP_SLOT) {
+ if (changed & BSS_CHANGED_BEACON) {
+ ret = p54_scan(dev, P54_SCAN_EXIT, 0);
+ if (ret)
+ goto out;
+ ret = p54_setup_mac(dev);
+ if (ret)
+ goto out;
+ ret = p54_beacon_update(dev, vif);
+ if (ret)
+ goto out;
+ }
+ /* XXX: this mimics having two callbacks... clean up */
+ out:
+ mutex_unlock(&priv->conf_mutex);
+
+ if (changed & (BSS_CHANGED_ERP_SLOT | BSS_CHANGED_BEACON)) {
priv->use_short_slot = info->use_short_slot;
p54_set_edcf(dev);
}
p54_setup_mac(dev);
}
}
-
}
static int p54_set_key(struct ieee80211_hw *dev, enum set_key_cmd cmd,
.sta_notify = p54_sta_notify,
.set_key = p54_set_key,
.config = p54_config,
- .config_interface = p54_config_interface,
.bss_info_changed = p54_bss_info_changed,
.configure_filter = p54_configure_filter,
.conf_tx = p54_conf_tx,
projects / deliverable / linux.git / blobdiff