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-rw-r--r--package/kernel/mac80211/patches/315-mac80211-avoid-duplicate-TX-path-station-lookup.patch267
1 files changed, 0 insertions, 267 deletions
diff --git a/package/kernel/mac80211/patches/315-mac80211-avoid-duplicate-TX-path-station-lookup.patch b/package/kernel/mac80211/patches/315-mac80211-avoid-duplicate-TX-path-station-lookup.patch
deleted file mode 100644
index d143025f0f..0000000000
--- a/package/kernel/mac80211/patches/315-mac80211-avoid-duplicate-TX-path-station-lookup.patch
+++ /dev/null
@@ -1,267 +0,0 @@
-From: Johannes Berg <johannes.berg@intel.com>
-Date: Fri, 20 Mar 2015 14:18:27 +0100
-Subject: [PATCH] mac80211: avoid duplicate TX path station lookup
-
-Instead of looking up the destination station twice in the TX path
-(first to build the header, and then for control processing), save
-it when building the header and use it later in the TX path.
-
-To avoid having to look up the station in the many callers, allow
-those to pass %NULL which keeps the existing lookup.
-
-Signed-off-by: Johannes Berg <johannes.berg@intel.com>
----
-
---- a/net/mac80211/cfg.c
-+++ b/net/mac80211/cfg.c
-@@ -3565,7 +3565,7 @@ static int ieee80211_probe_client(struct
- nullfunc->qos_ctrl = cpu_to_le16(7);
-
- local_bh_disable();
-- ieee80211_xmit(sdata, skb);
-+ ieee80211_xmit(sdata, sta, skb);
- local_bh_enable();
- rcu_read_unlock();
-
---- a/net/mac80211/ieee80211_i.h
-+++ b/net/mac80211/ieee80211_i.h
-@@ -1775,7 +1775,8 @@ void mac80211_ev_michael_mic_failure(str
- gfp_t gfp);
- void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
- bool bss_notify);
--void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
-+void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
-+ struct sta_info *sta, struct sk_buff *skb);
-
- void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
- struct sk_buff *skb, int tid,
---- a/net/mac80211/sta_info.c
-+++ b/net/mac80211/sta_info.c
-@@ -1279,7 +1279,7 @@ static void ieee80211_send_null_response
- }
-
- info->band = chanctx_conf->def.chan->band;
-- ieee80211_xmit(sdata, skb);
-+ ieee80211_xmit(sdata, sta, skb);
- rcu_read_unlock();
- }
-
---- a/net/mac80211/tx.c
-+++ b/net/mac80211/tx.c
-@@ -1110,11 +1110,13 @@ static bool ieee80211_tx_prep_agg(struct
-
- /*
- * initialises @tx
-+ * pass %NULL for the station if unknown, a valid pointer if known
-+ * or an ERR_PTR() if the station is known not to exist
- */
- static ieee80211_tx_result
- ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_tx_data *tx,
-- struct sk_buff *skb)
-+ struct sta_info *sta, struct sk_buff *skb)
- {
- struct ieee80211_local *local = sdata->local;
- struct ieee80211_hdr *hdr;
-@@ -1137,17 +1139,22 @@ ieee80211_tx_prepare(struct ieee80211_su
-
- hdr = (struct ieee80211_hdr *) skb->data;
-
-- if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
-- tx->sta = rcu_dereference(sdata->u.vlan.sta);
-- if (!tx->sta && sdata->dev->ieee80211_ptr->use_4addr)
-- return TX_DROP;
-- } else if (info->flags & (IEEE80211_TX_CTL_INJECTED |
-- IEEE80211_TX_INTFL_NL80211_FRAME_TX) ||
-- tx->sdata->control_port_protocol == tx->skb->protocol) {
-- tx->sta = sta_info_get_bss(sdata, hdr->addr1);
-+ if (likely(sta)) {
-+ if (!IS_ERR(sta))
-+ tx->sta = sta;
-+ } else {
-+ if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
-+ tx->sta = rcu_dereference(sdata->u.vlan.sta);
-+ if (!tx->sta && sdata->wdev.use_4addr)
-+ return TX_DROP;
-+ } else if (info->flags & (IEEE80211_TX_INTFL_NL80211_FRAME_TX |
-+ IEEE80211_TX_CTL_INJECTED) ||
-+ tx->sdata->control_port_protocol == tx->skb->protocol) {
-+ tx->sta = sta_info_get_bss(sdata, hdr->addr1);
-+ }
-+ if (!tx->sta && !is_multicast_ether_addr(hdr->addr1))
-+ tx->sta = sta_info_get(sdata, hdr->addr1);
- }
-- if (!tx->sta && !is_multicast_ether_addr(hdr->addr1))
-- tx->sta = sta_info_get(sdata, hdr->addr1);
-
- if (tx->sta && ieee80211_is_data_qos(hdr->frame_control) &&
- !ieee80211_is_qos_nullfunc(hdr->frame_control) &&
-@@ -1485,7 +1492,7 @@ bool ieee80211_tx_prepare_skb(struct iee
- struct ieee80211_tx_data tx;
- struct sk_buff *skb2;
-
-- if (ieee80211_tx_prepare(sdata, &tx, skb) == TX_DROP)
-+ if (ieee80211_tx_prepare(sdata, &tx, NULL, skb) == TX_DROP)
- return false;
-
- info->band = band;
-@@ -1518,7 +1525,8 @@ EXPORT_SYMBOL(ieee80211_tx_prepare_skb);
- * Returns false if the frame couldn't be transmitted but was queued instead.
- */
- static bool ieee80211_tx(struct ieee80211_sub_if_data *sdata,
-- struct sk_buff *skb, bool txpending)
-+ struct sta_info *sta, struct sk_buff *skb,
-+ bool txpending)
- {
- struct ieee80211_local *local = sdata->local;
- struct ieee80211_tx_data tx;
-@@ -1534,7 +1542,7 @@ static bool ieee80211_tx(struct ieee8021
-
- /* initialises tx */
- led_len = skb->len;
-- res_prepare = ieee80211_tx_prepare(sdata, &tx, skb);
-+ res_prepare = ieee80211_tx_prepare(sdata, &tx, sta, skb);
-
- if (unlikely(res_prepare == TX_DROP)) {
- ieee80211_free_txskb(&local->hw, skb);
-@@ -1590,7 +1598,8 @@ static int ieee80211_skb_resize(struct i
- return 0;
- }
-
--void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb)
-+void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
-+ struct sta_info *sta, struct sk_buff *skb)
- {
- struct ieee80211_local *local = sdata->local;
- struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-@@ -1625,7 +1634,7 @@ void ieee80211_xmit(struct ieee80211_sub
- }
-
- ieee80211_set_qos_hdr(sdata, skb);
-- ieee80211_tx(sdata, skb, false);
-+ ieee80211_tx(sdata, sta, skb, false);
- }
-
- static bool ieee80211_parse_tx_radiotap(struct sk_buff *skb)
-@@ -1846,7 +1855,7 @@ netdev_tx_t ieee80211_monitor_start_xmit
- goto fail_rcu;
-
- info->band = chandef->chan->band;
-- ieee80211_xmit(sdata, skb);
-+ ieee80211_xmit(sdata, NULL, skb);
- rcu_read_unlock();
-
- return NETDEV_TX_OK;
-@@ -1877,7 +1886,8 @@ fail:
- * Returns: the (possibly reallocated) skb or an ERR_PTR() code
- */
- static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata,
-- struct sk_buff *skb, u32 info_flags)
-+ struct sk_buff *skb, u32 info_flags,
-+ struct sta_info **sta_out)
- {
- struct ieee80211_local *local = sdata->local;
- struct ieee80211_tx_info *info;
-@@ -1920,6 +1930,7 @@ static struct sk_buff *ieee80211_build_h
- authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED);
- wme_sta = sta->sta.wme;
- have_station = true;
-+ *sta_out = sta;
- } else if (sdata->wdev.use_4addr) {
- ret = -ENOLINK;
- goto free;
-@@ -2073,6 +2084,7 @@ static struct sk_buff *ieee80211_build_h
- have_station = true;
- authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED);
- wme_sta = sta->sta.wme;
-+ *sta_out = sta;
- } else if (sdata->u.mgd.use_4addr &&
- cpu_to_be16(ethertype) != sdata->control_port_protocol) {
- fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS |
-@@ -2136,13 +2148,18 @@ static struct sk_buff *ieee80211_build_h
- * and mesh mode checks authorization later.
- */
- multicast = is_multicast_ether_addr(hdr.addr1);
-- if (!multicast && !have_station &&
-- !ieee80211_vif_is_mesh(&sdata->vif)) {
-- sta = sta_info_get(sdata, hdr.addr1);
-+ if (multicast) {
-+ *sta_out = ERR_PTR(-ENOENT);
-+ } else if (!have_station && !ieee80211_vif_is_mesh(&sdata->vif)) {
-+ if (sdata->control_port_protocol == skb->protocol)
-+ sta = sta_info_get_bss(sdata, hdr.addr1);
-+ else
-+ sta = sta_info_get(sdata, hdr.addr1);
- if (sta) {
- authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED);
- wme_sta = sta->sta.wme;
- }
-+ *sta_out = sta ?: ERR_PTR(-ENOENT);
- }
-
- /* For mesh, the use of the QoS header is mandatory */
-@@ -2320,6 +2337,7 @@ void __ieee80211_subif_start_xmit(struct
- u32 info_flags)
- {
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-+ struct sta_info *sta = NULL;
-
- if (unlikely(skb->len < ETH_HLEN)) {
- kfree_skb(skb);
-@@ -2328,7 +2346,7 @@ void __ieee80211_subif_start_xmit(struct
-
- rcu_read_lock();
-
-- skb = ieee80211_build_hdr(sdata, skb, info_flags);
-+ skb = ieee80211_build_hdr(sdata, skb, info_flags, &sta);
- if (IS_ERR(skb))
- goto out;
-
-@@ -2336,7 +2354,7 @@ void __ieee80211_subif_start_xmit(struct
- dev->stats.tx_bytes += skb->len;
- dev->trans_start = jiffies;
-
-- ieee80211_xmit(sdata, skb);
-+ ieee80211_xmit(sdata, sta, skb);
- out:
- rcu_read_unlock();
- }
-@@ -2364,10 +2382,11 @@ ieee80211_build_data_template(struct iee
- .local = sdata->local,
- .sdata = sdata,
- };
-+ struct sta_info *sta_ignore;
-
- rcu_read_lock();
-
-- skb = ieee80211_build_hdr(sdata, skb, info_flags);
-+ skb = ieee80211_build_hdr(sdata, skb, info_flags, &sta_ignore);
- if (IS_ERR(skb))
- goto out;
-
-@@ -2425,7 +2444,7 @@ static bool ieee80211_tx_pending_skb(str
- return true;
- }
- info->band = chanctx_conf->def.chan->band;
-- result = ieee80211_tx(sdata, skb, true);
-+ result = ieee80211_tx(sdata, NULL, skb, true);
- } else {
- struct sk_buff_head skbs;
-
-@@ -3163,7 +3182,7 @@ ieee80211_get_buffered_bc(struct ieee802
-
- if (sdata->vif.type == NL80211_IFTYPE_AP)
- sdata = IEEE80211_DEV_TO_SUB_IF(skb->dev);
-- if (!ieee80211_tx_prepare(sdata, &tx, skb))
-+ if (!ieee80211_tx_prepare(sdata, &tx, NULL, skb))
- break;
- dev_kfree_skb_any(skb);
- }
-@@ -3295,6 +3314,6 @@ void __ieee80211_tx_skb_tid_band(struct
- */
- local_bh_disable();
- IEEE80211_SKB_CB(skb)->band = band;
-- ieee80211_xmit(sdata, skb);
-+ ieee80211_xmit(sdata, NULL, skb);
- local_bh_enable();
- }
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-01 10:19:19 +0000