mac80211: add single function calling tx handlers
This modifies mac80211 to only have a single function calling the TX handlers rather than them being invoked in multiple places. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
parent
9965183a78
commit
97b045d62b
|
@ -1083,13 +1083,46 @@ static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb,
|
||||||
return IEEE80211_TX_OK;
|
return IEEE80211_TX_OK;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Invoke TX handlers, return 0 on success and non-zero if the
|
||||||
|
* frame was dropped or queued.
|
||||||
|
*/
|
||||||
|
static int invoke_tx_handlers(struct ieee80211_tx_data *tx)
|
||||||
|
{
|
||||||
|
struct ieee80211_local *local = tx->local;
|
||||||
|
struct sk_buff *skb = tx->skb;
|
||||||
|
ieee80211_tx_handler *handler;
|
||||||
|
ieee80211_tx_result res = TX_DROP;
|
||||||
|
int i;
|
||||||
|
|
||||||
|
for (handler = ieee80211_tx_handlers; *handler != NULL; handler++) {
|
||||||
|
res = (*handler)(tx);
|
||||||
|
if (res != TX_CONTINUE)
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (unlikely(res == TX_DROP)) {
|
||||||
|
I802_DEBUG_INC(local->tx_handlers_drop);
|
||||||
|
dev_kfree_skb(skb);
|
||||||
|
for (i = 0; i < tx->num_extra_frag; i++)
|
||||||
|
if (tx->extra_frag[i])
|
||||||
|
dev_kfree_skb(tx->extra_frag[i]);
|
||||||
|
kfree(tx->extra_frag);
|
||||||
|
return -1;
|
||||||
|
} else if (unlikely(res == TX_QUEUED)) {
|
||||||
|
I802_DEBUG_INC(local->tx_handlers_queued);
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb)
|
static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb)
|
||||||
{
|
{
|
||||||
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
|
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
|
||||||
struct sta_info *sta;
|
struct sta_info *sta;
|
||||||
ieee80211_tx_handler *handler;
|
|
||||||
struct ieee80211_tx_data tx;
|
struct ieee80211_tx_data tx;
|
||||||
ieee80211_tx_result res = TX_DROP, res_prepare;
|
ieee80211_tx_result res_prepare;
|
||||||
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
|
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
|
||||||
int ret, i;
|
int ret, i;
|
||||||
u16 queue;
|
u16 queue;
|
||||||
|
@ -1118,26 +1151,8 @@ static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb)
|
||||||
tx.channel = local->hw.conf.channel;
|
tx.channel = local->hw.conf.channel;
|
||||||
info->band = tx.channel->band;
|
info->band = tx.channel->band;
|
||||||
|
|
||||||
for (handler = ieee80211_tx_handlers; *handler != NULL;
|
if (invoke_tx_handlers(&tx))
|
||||||
handler++) {
|
goto out;
|
||||||
res = (*handler)(&tx);
|
|
||||||
if (res != TX_CONTINUE)
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (WARN_ON(tx.skb != skb))
|
|
||||||
goto drop;
|
|
||||||
|
|
||||||
if (unlikely(res == TX_DROP)) {
|
|
||||||
I802_DEBUG_INC(local->tx_handlers_drop);
|
|
||||||
goto drop;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (unlikely(res == TX_QUEUED)) {
|
|
||||||
I802_DEBUG_INC(local->tx_handlers_queued);
|
|
||||||
rcu_read_unlock();
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (tx.extra_frag) {
|
if (tx.extra_frag) {
|
||||||
for (i = 0; i < tx.num_extra_frag; i++) {
|
for (i = 0; i < tx.num_extra_frag; i++) {
|
||||||
|
@ -1198,6 +1213,7 @@ retry:
|
||||||
store->last_frag_rate_ctrl_probe =
|
store->last_frag_rate_ctrl_probe =
|
||||||
!!(tx.flags & IEEE80211_TX_PROBE_LAST_FRAG);
|
!!(tx.flags & IEEE80211_TX_PROBE_LAST_FRAG);
|
||||||
}
|
}
|
||||||
|
out:
|
||||||
rcu_read_unlock();
|
rcu_read_unlock();
|
||||||
return 0;
|
return 0;
|
||||||
|
|
||||||
|
@ -1948,9 +1964,7 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
|
||||||
struct ieee80211_local *local = hw_to_local(hw);
|
struct ieee80211_local *local = hw_to_local(hw);
|
||||||
struct sk_buff *skb = NULL;
|
struct sk_buff *skb = NULL;
|
||||||
struct sta_info *sta;
|
struct sta_info *sta;
|
||||||
ieee80211_tx_handler *handler;
|
|
||||||
struct ieee80211_tx_data tx;
|
struct ieee80211_tx_data tx;
|
||||||
ieee80211_tx_result res = TX_DROP;
|
|
||||||
struct net_device *bdev;
|
struct net_device *bdev;
|
||||||
struct ieee80211_sub_if_data *sdata;
|
struct ieee80211_sub_if_data *sdata;
|
||||||
struct ieee80211_if_ap *bss = NULL;
|
struct ieee80211_if_ap *bss = NULL;
|
||||||
|
@ -2001,25 +2015,9 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
|
||||||
tx.channel = local->hw.conf.channel;
|
tx.channel = local->hw.conf.channel;
|
||||||
info->band = tx.channel->band;
|
info->band = tx.channel->band;
|
||||||
|
|
||||||
for (handler = ieee80211_tx_handlers; *handler != NULL; handler++) {
|
if (invoke_tx_handlers(&tx))
|
||||||
res = (*handler)(&tx);
|
|
||||||
if (res == TX_DROP || res == TX_QUEUED)
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (WARN_ON(tx.skb != skb))
|
|
||||||
res = TX_DROP;
|
|
||||||
|
|
||||||
if (res == TX_DROP) {
|
|
||||||
I802_DEBUG_INC(local->tx_handlers_drop);
|
|
||||||
dev_kfree_skb(skb);
|
|
||||||
skb = NULL;
|
skb = NULL;
|
||||||
} else if (res == TX_QUEUED) {
|
out:
|
||||||
I802_DEBUG_INC(local->tx_handlers_queued);
|
|
||||||
skb = NULL;
|
|
||||||
}
|
|
||||||
|
|
||||||
out:
|
|
||||||
rcu_read_unlock();
|
rcu_read_unlock();
|
||||||
|
|
||||||
return skb;
|
return skb;
|
||||||
|
|
Loading…
Reference in New Issue