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mac80211: add more tx skb free fixes (hopefully final fix to #11894)

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SVN-Revision: 34133
This commit is contained in:
Felix Fietkau 2012-11-10 02:47:33 +00:00
parent f3f3f52259
commit f9e59cf29c
3 changed files with 209 additions and 160 deletions
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209
package/mac80211/patches/300-pending_work.patch
View file

@ -107,6 +107,15 @@
/*
* set_multicast_list will be invoked by the networking core
@@ -849,7 +826,7 @@ static void ieee80211_do_stop(struct iee
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
if (info->control.vif == &sdata->vif) {
__skb_unlink(skb, &local->pending[i]);
- dev_kfree_skb_irq(skb);
+ ieee80211_free_txskb(&local->hw, skb);
}
}
}
@@ -997,6 +974,72 @@ static void ieee80211_if_setup(struct ne
dev->destructor = free_netdev;
}
@ -257,6 +266,24 @@
WLAN_STA_BLOCK_BA,
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -34,7 +34,7 @@ void ieee80211_tx_status_irqsafe(struct
skb_queue_len(&local->skb_queue_unreliable);
while (tmp > IEEE80211_IRQSAFE_QUEUE_LIMIT &&
(skb = skb_dequeue(&local->skb_queue_unreliable))) {
- dev_kfree_skb_irq(skb);
+ ieee80211_free_txskb(hw, skb);
tmp--;
I802_DEBUG_INC(local->tx_status_drop);
}
@@ -159,7 +159,7 @@ static void ieee80211_handle_filtered_fr
"dropped TX filtered frame, queue_len=%d PS=%d @%lu\n",
skb_queue_len(&sta->tx_filtered[ac]),
!!test_sta_flag(sta, WLAN_STA_PS_STA), jiffies);
- dev_kfree_skb(skb);
+ ieee80211_free_txskb(&local->hw, skb);
}
static void ieee80211_check_pending_bar(struct sta_info *sta, u8 *addr, u8 tid)
@@ -324,6 +324,75 @@ static void ieee80211_add_tx_radiotap_he
}
@ -385,7 +412,7 @@
/* this was a transmitted frame, but now we want to reuse it */
skb_orphan(skb);
@@ -634,25 +660,8 @@ EXPORT_SYMBOL(ieee80211_report_low_ack);
@@ -634,25 +660,17 @@ EXPORT_SYMBOL(ieee80211_report_low_ack);
void ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb)
{
struct ieee80211_local *local = hw_to_local(hw);
@ -412,6 +439,15 @@
dev_kfree_skb_any(skb);
}
EXPORT_SYMBOL(ieee80211_free_txskb);
+
+void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
+ struct sk_buff_head *skbs)
+{
+ struct sk_buff *skb;
+
+ while ((skb = __skb_dequeue(skbs)))
+ ieee80211_free_txskb(hw, skb);
+}
--- a/drivers/net/wireless/p54/main.c
+++ b/drivers/net/wireless/p54/main.c
@@ -139,6 +139,7 @@ static int p54_beacon_format_ie_tim(stru
@ -630,6 +666,24 @@
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -585,7 +585,7 @@ static bool sta_info_cleanup_expire_buff
*/
if (!skb)
break;
- dev_kfree_skb(skb);
+ ieee80211_free_txskb(&local->hw, skb);
}
/*
@@ -614,7 +614,7 @@ static bool sta_info_cleanup_expire_buff
local->total_ps_buffered--;
ps_dbg(sta->sdata, "Buffered frame expired (STA %pM)\n",
sta->sta.addr);
- dev_kfree_skb(skb);
+ ieee80211_free_txskb(&local->hw, skb);
}
/*
@@ -674,7 +674,7 @@ int __must_check __sta_info_destroy(stru
* will be sufficient.
*/
@ -639,6 +693,26 @@
ret = sta_info_hash_del(local, sta);
if (ret)
@@ -730,8 +730,8 @@ int __must_check __sta_info_destroy(stru
for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
local->total_ps_buffered -= skb_queue_len(&sta->ps_tx_buf[ac]);
- __skb_queue_purge(&sta->ps_tx_buf[ac]);
- __skb_queue_purge(&sta->tx_filtered[ac]);
+ ieee80211_purge_tx_queue(&local->hw, &sta->ps_tx_buf[ac]);
+ ieee80211_purge_tx_queue(&local->hw, &sta->tx_filtered[ac]);
}
#ifdef CONFIG_MAC80211_MESH
@@ -765,7 +765,7 @@ int __must_check __sta_info_destroy(stru
tid_tx = rcu_dereference_raw(sta->ampdu_mlme.tid_tx[i]);
if (!tid_tx)
continue;
- __skb_queue_purge(&tid_tx->pending);
+ ieee80211_purge_tx_queue(&local->hw, &tid_tx->pending);
kfree(tid_tx);
}
--- a/drivers/net/wireless/ath/ath5k/phy.c
+++ b/drivers/net/wireless/ath/ath5k/phy.c
@@ -1977,11 +1977,13 @@ ath5k_hw_set_spur_mitigation_filter(stru
@ -674,8 +748,35 @@
u8 quiet_elem_len;
u8 num_of_quiet_elem; /* can be more the one */
u8 timeout_int_len;
@@ -1318,6 +1317,8 @@ netdev_tx_t ieee80211_monitor_start_xmit
struct net_device *dev);
netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
struct net_device *dev);
+void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
+ struct sk_buff_head *skbs);
/* HT */
void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -406,7 +406,7 @@ void ieee80211_add_pending_skb(struct ie
int queue = info->hw_queue;
if (WARN_ON(!info->control.vif)) {
- kfree_skb(skb);
+ ieee80211_free_txskb(&local->hw, skb);
return;
}
@@ -431,7 +431,7 @@ void ieee80211_add_pending_skbs_fn(struc
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
if (WARN_ON(!info->control.vif)) {
- kfree_skb(skb);
+ ieee80211_free_txskb(&local->hw, skb);
continue;
}
@@ -792,8 +792,11 @@ u32 ieee802_11_parse_elems_crc(u8 *start
elems->country_elem_len = elen;
break;
@ -786,3 +887,109 @@
ieee80211_queue_work(&local->hw, &local->reconfig_filter);
break;
default:
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -354,7 +354,7 @@ static void purge_old_ps_buffers(struct
total += skb_queue_len(&sta->ps_tx_buf[ac]);
if (skb) {
purged++;
- dev_kfree_skb(skb);
+ ieee80211_free_txskb(&local->hw, skb);
break;
}
}
@@ -466,7 +466,7 @@ ieee80211_tx_h_unicast_ps_buf(struct iee
ps_dbg(tx->sdata,
"STA %pM TX buffer for AC %d full - dropping oldest frame\n",
sta->sta.addr, ac);
- dev_kfree_skb(old);
+ ieee80211_free_txskb(&local->hw, old);
} else
tx->local->total_ps_buffered++;
@@ -1103,7 +1103,7 @@ static bool ieee80211_tx_prep_agg(struct
spin_unlock(&tx->sta->lock);
if (purge_skb)
- dev_kfree_skb(purge_skb);
+ ieee80211_free_txskb(&tx->local->hw, purge_skb);
}
/* reset session timer */
@@ -1214,7 +1214,7 @@ static bool ieee80211_tx_frags(struct ie
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
if (WARN_ON_ONCE(q >= local->hw.queues)) {
__skb_unlink(skb, skbs);
- dev_kfree_skb(skb);
+ ieee80211_free_txskb(&local->hw, skb);
continue;
}
#endif
@@ -1356,9 +1356,9 @@ static int invoke_tx_handlers(struct iee
if (unlikely(res == TX_DROP)) {
I802_DEBUG_INC(tx->local->tx_handlers_drop);
if (tx->skb)
- dev_kfree_skb(tx->skb);
+ ieee80211_free_txskb(&tx->local->hw, tx->skb);
else
- __skb_queue_purge(&tx->skbs);
+ ieee80211_purge_tx_queue(&tx->local->hw, &tx->skbs);
return -1;
} else if (unlikely(res == TX_QUEUED)) {
I802_DEBUG_INC(tx->local->tx_handlers_queued);
@@ -1393,7 +1393,7 @@ static bool ieee80211_tx(struct ieee8021
res_prepare = ieee80211_tx_prepare(sdata, &tx, skb);
if (unlikely(res_prepare == TX_DROP)) {
- dev_kfree_skb(skb);
+ ieee80211_free_txskb(&local->hw, skb);
goto out;
} else if (unlikely(res_prepare == TX_QUEUED)) {
goto out;
@@ -1465,7 +1465,7 @@ void ieee80211_xmit(struct ieee80211_sub
headroom = max_t(int, 0, headroom);
if (ieee80211_skb_resize(sdata, skb, headroom, may_encrypt)) {
- dev_kfree_skb(skb);
+ ieee80211_free_txskb(&local->hw, skb);
rcu_read_unlock();
return;
}
@@ -2056,8 +2056,10 @@ netdev_tx_t ieee80211_subif_start_xmit(s
head_need += IEEE80211_ENCRYPT_HEADROOM;
head_need += local->tx_headroom;
head_need = max_t(int, 0, head_need);
- if (ieee80211_skb_resize(sdata, skb, head_need, true))
- goto fail;
+ if (ieee80211_skb_resize(sdata, skb, head_need, true)) {
+ ieee80211_free_txskb(&local->hw, skb);
+ return NETDEV_TX_OK;
+ }
}
if (encaps_data) {
@@ -2124,10 +2126,13 @@ netdev_tx_t ieee80211_subif_start_xmit(s
*/
void ieee80211_clear_tx_pending(struct ieee80211_local *local)
{
+ struct sk_buff *skb;
int i;
- for (i = 0; i < local->hw.queues; i++)
- skb_queue_purge(&local->pending[i]);
+ for (i = 0; i < local->hw.queues; i++) {
+ while ((skb = skb_dequeue(&local->pending[i])) != NULL)
+ ieee80211_free_txskb(&local->hw, skb);
+ }
}
/*
@@ -2190,7 +2195,7 @@ void ieee80211_tx_pending(unsigned long
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
if (WARN_ON(!info->control.vif)) {
- kfree_skb(skb);
+ ieee80211_free_txskb(&local->hw, skb);
continue;
}

158
package/mac80211/patches/527-mac80211_use_ieee80211_free_txskb.patch
View file

@ -1,158 +0,0 @@
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -354,7 +354,7 @@ static void purge_old_ps_buffers(struct
total += skb_queue_len(&sta->ps_tx_buf[ac]);
if (skb) {
purged++;
- dev_kfree_skb(skb);
+ ieee80211_free_txskb(&local->hw, skb);
break;
}
}
@@ -466,7 +466,7 @@ ieee80211_tx_h_unicast_ps_buf(struct iee
ps_dbg(tx->sdata,
"STA %pM TX buffer for AC %d full - dropping oldest frame\n",
sta->sta.addr, ac);
- dev_kfree_skb(old);
+ ieee80211_free_txskb(&local->hw, old);
} else
tx->local->total_ps_buffered++;
@@ -1103,7 +1103,7 @@ static bool ieee80211_tx_prep_agg(struct
spin_unlock(&tx->sta->lock);
if (purge_skb)
- dev_kfree_skb(purge_skb);
+ ieee80211_free_txskb(&tx->local->hw, purge_skb);
}
/* reset session timer */
@@ -1214,7 +1214,7 @@ static bool ieee80211_tx_frags(struct ie
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
if (WARN_ON_ONCE(q >= local->hw.queues)) {
__skb_unlink(skb, skbs);
- dev_kfree_skb(skb);
+ ieee80211_free_txskb(&local->hw, skb);
continue;
}
#endif
@@ -1356,7 +1356,7 @@ static int invoke_tx_handlers(struct iee
if (unlikely(res == TX_DROP)) {
I802_DEBUG_INC(tx->local->tx_handlers_drop);
if (tx->skb)
- dev_kfree_skb(tx->skb);
+ ieee80211_free_txskb(&tx->local->hw, tx->skb);
else
__skb_queue_purge(&tx->skbs);
return -1;
@@ -1393,7 +1393,7 @@ static bool ieee80211_tx(struct ieee8021
res_prepare = ieee80211_tx_prepare(sdata, &tx, skb);
if (unlikely(res_prepare == TX_DROP)) {
- dev_kfree_skb(skb);
+ ieee80211_free_txskb(&local->hw, skb);
goto out;
} else if (unlikely(res_prepare == TX_QUEUED)) {
goto out;
@@ -1465,7 +1465,7 @@ void ieee80211_xmit(struct ieee80211_sub
headroom = max_t(int, 0, headroom);
if (ieee80211_skb_resize(sdata, skb, headroom, may_encrypt)) {
- dev_kfree_skb(skb);
+ ieee80211_free_txskb(&local->hw, skb);
rcu_read_unlock();
return;
}
@@ -2056,8 +2056,10 @@ netdev_tx_t ieee80211_subif_start_xmit(s
head_need += IEEE80211_ENCRYPT_HEADROOM;
head_need += local->tx_headroom;
head_need = max_t(int, 0, head_need);
- if (ieee80211_skb_resize(sdata, skb, head_need, true))
- goto fail;
+ if (ieee80211_skb_resize(sdata, skb, head_need, true)) {
+ ieee80211_free_txskb(&local->hw, skb);
+ return NETDEV_TX_OK;
+ }
}
if (encaps_data) {
@@ -2190,7 +2192,7 @@ void ieee80211_tx_pending(unsigned long
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
if (WARN_ON(!info->control.vif)) {
- kfree_skb(skb);
+ ieee80211_free_txskb(&local->hw, skb);
continue;
}
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -34,7 +34,7 @@ void ieee80211_tx_status_irqsafe(struct
skb_queue_len(&local->skb_queue_unreliable);
while (tmp > IEEE80211_IRQSAFE_QUEUE_LIMIT &&
(skb = skb_dequeue(&local->skb_queue_unreliable))) {
- dev_kfree_skb_irq(skb);
+ ieee80211_free_txskb(hw, skb);
tmp--;
I802_DEBUG_INC(local->tx_status_drop);
}
@@ -159,7 +159,7 @@ static void ieee80211_handle_filtered_fr
"dropped TX filtered frame, queue_len=%d PS=%d @%lu\n",
skb_queue_len(&sta->tx_filtered[ac]),
!!test_sta_flag(sta, WLAN_STA_PS_STA), jiffies);
- dev_kfree_skb(skb);
+ ieee80211_free_txskb(&local->hw, skb);
}
static void ieee80211_check_pending_bar(struct sta_info *sta, u8 *addr, u8 tid)
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -826,7 +826,7 @@ static void ieee80211_do_stop(struct iee
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
if (info->control.vif == &sdata->vif) {
__skb_unlink(skb, &local->pending[i]);
- dev_kfree_skb_irq(skb);
+ ieee80211_free_txskb(&local->hw, skb);
}
}
}
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -587,7 +587,7 @@ static bool sta_info_cleanup_expire_buff
*/
if (!skb)
break;
- dev_kfree_skb(skb);
+ ieee80211_free_txskb(&local->hw, skb);
}
/*
@@ -616,7 +616,7 @@ static bool sta_info_cleanup_expire_buff
local->total_ps_buffered--;
ps_dbg(sta->sdata, "Buffered frame expired (STA %pM)\n",
sta->sta.addr);
- dev_kfree_skb(skb);
+ ieee80211_free_txskb(&local->hw, skb);
}
/*
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -406,7 +406,7 @@ void ieee80211_add_pending_skb(struct ie
int queue = info->hw_queue;
if (WARN_ON(!info->control.vif)) {
- kfree_skb(skb);
+ ieee80211_free_txskb(&local->hw, skb);
return;
}
@@ -431,7 +431,7 @@ void ieee80211_add_pending_skbs_fn(struc
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
if (WARN_ON(!info->control.vif)) {
- kfree_skb(skb);
+ ieee80211_free_txskb(&local->hw, skb);
continue;
}

2
package/mac80211/patches/550-mac80211_optimize_mcs_rate_mask.patch
View file

@ -69,7 +69,7 @@
txrc.bss = (tx->sdata->vif.type == NL80211_IFTYPE_AP ||
tx->sdata->vif.type == NL80211_IFTYPE_MESH_POINT ||
tx->sdata->vif.type == NL80211_IFTYPE_ADHOC);
@@ -2449,8 +2451,6 @@ struct sk_buff *ieee80211_beacon_get_tim
@@ -2452,8 +2454,6 @@ struct sk_buff *ieee80211_beacon_get_tim
txrc.max_rate_idx = -1;
else
txrc.max_rate_idx = fls(txrc.rate_idx_mask) - 1;