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mac80211: merge a few performance enhancements

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Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 44910
v19.07.3_mercusys_ac12_duma
Felix Fietkau 9 years ago
parent f7a861615c
commit 9143cf5fc9
7 changed files with 550 additions and 1 deletions
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21
package/kernel/mac80211/patches/310-mac80211-don-t-look-up-stations-for-multicast-addres.patch
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From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 24 Feb 2015 00:28:18 +0100
Subject: [PATCH] mac80211: don't look up stations for multicast addresses
Since multicast addresses don't exist as stations, don't attempt
to look them up in the hashtable on TX.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1162,7 +1162,7 @@ ieee80211_tx_prepare(struct ieee80211_su
tx->sdata->control_port_protocol == tx->skb->protocol) {
tx->sta = sta_info_get_bss(sdata, hdr->addr1);
}
- if (!tx->sta)
+ 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) &&

130
package/kernel/mac80211/patches/311-mac80211-remove-drop_unencrypted-code.patch
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From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 20 Mar 2015 11:41:58 +0100
Subject: [PATCH] mac80211: remove drop_unencrypted code
This mechanism was historic, and only ever used by IBSS, which
also doesn't need to have it as it properly manages station's
802.1X PAE state (or, with WEP, always has a key.)
Remove the mechanism to clean up the code.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -274,8 +274,6 @@ void debugfs_hw_add(struct ieee80211_loc
#ifdef CPTCFG_MAC80211_DEBUG_COUNTERS
DEBUGFS_STATS_ADD(tx_handlers_drop, local->tx_handlers_drop);
DEBUGFS_STATS_ADD(tx_handlers_queued, local->tx_handlers_queued);
- DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted,
- local->tx_handlers_drop_unencrypted);
DEBUGFS_STATS_ADD(tx_handlers_drop_fragment,
local->tx_handlers_drop_fragment);
DEBUGFS_STATS_ADD(tx_handlers_drop_wep,
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -177,7 +177,6 @@ static ssize_t ieee80211_if_write_##name
IEEE80211_IF_FILE_R(name)
/* common attributes */
-IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[IEEE80211_BAND_2GHZ],
HEX);
IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[IEEE80211_BAND_5GHZ],
@@ -562,7 +561,6 @@ IEEE80211_IF_FILE(dot11MeshAwakeWindowDu
static void add_common_files(struct ieee80211_sub_if_data *sdata)
{
- DEBUGFS_ADD(drop_unencrypted);
DEBUGFS_ADD(rc_rateidx_mask_2ghz);
DEBUGFS_ADD(rc_rateidx_mask_5ghz);
DEBUGFS_ADD(rc_rateidx_mcs_mask_2ghz);
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -249,8 +249,6 @@ static void __ieee80211_sta_join_ibss(st
if (presp)
kfree_rcu(presp, rcu_head);
- sdata->drop_unencrypted = capability & WLAN_CAPABILITY_PRIVACY ? 1 : 0;
-
/* make a copy of the chandef, it could be modified below. */
chandef = *req_chandef;
chan = chandef.chan;
@@ -1289,8 +1287,6 @@ static void ieee80211_sta_create_ibss(st
if (ifibss->privacy)
capability |= WLAN_CAPABILITY_PRIVACY;
- else
- sdata->drop_unencrypted = 0;
__ieee80211_sta_join_ibss(sdata, bssid, sdata->vif.bss_conf.beacon_int,
&ifibss->chandef, ifibss->basic_rates,
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -842,8 +842,6 @@ struct ieee80211_sub_if_data {
unsigned long state;
- int drop_unencrypted;
-
char name[IFNAMSIZ];
/* Fragment table for host-based reassembly */
@@ -1289,7 +1287,6 @@ struct ieee80211_local {
/* TX/RX handler statistics */
unsigned int tx_handlers_drop;
unsigned int tx_handlers_queued;
- unsigned int tx_handlers_drop_unencrypted;
unsigned int tx_handlers_drop_fragment;
unsigned int tx_handlers_drop_wep;
unsigned int tx_handlers_drop_not_assoc;
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1535,7 +1535,6 @@ int ieee80211_if_change_type(struct ieee
}
/* reset some values that shouldn't be kept across type changes */
- sdata->drop_unencrypted = 0;
if (type == NL80211_IFTYPE_STATION)
sdata->u.mgd.use_4addr = false;
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1897,8 +1897,7 @@ static int ieee80211_drop_unencrypted(st
/* Drop unencrypted frames if key is set. */
if (unlikely(!ieee80211_has_protected(fc) &&
!ieee80211_is_nullfunc(fc) &&
- ieee80211_is_data(fc) &&
- (rx->key || rx->sdata->drop_unencrypted)))
+ ieee80211_is_data(fc) && rx->key))
return -EACCES;
return 0;
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -594,23 +594,8 @@ ieee80211_tx_h_select_key(struct ieee802
else if (!is_multicast_ether_addr(hdr->addr1) &&
(key = rcu_dereference(tx->sdata->default_unicast_key)))
tx->key = key;
- else if (info->flags & IEEE80211_TX_CTL_INJECTED)
- tx->key = NULL;
- else if (!tx->sdata->drop_unencrypted)
- tx->key = NULL;
- else if (tx->skb->protocol == tx->sdata->control_port_protocol)
- tx->key = NULL;
- else if (ieee80211_is_robust_mgmt_frame(tx->skb) &&
- !(ieee80211_is_action(hdr->frame_control) &&
- tx->sta && test_sta_flag(tx->sta, WLAN_STA_MFP)))
- tx->key = NULL;
- else if (ieee80211_is_mgmt(hdr->frame_control) &&
- !ieee80211_is_robust_mgmt_frame(tx->skb))
+ else
tx->key = NULL;
- else {
- I802_DEBUG_INC(tx->local->tx_handlers_drop_unencrypted);
- return TX_DROP;
- }
if (tx->key) {
bool skip_hw = false;

71
package/kernel/mac80211/patches/312-mac80211-don-t-look-up-destination-station-twice.patch
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From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 20 Mar 2015 16:24:21 +0100
Subject: [PATCH] mac80211: don't look up destination station twice
There's no need to look up the destination station twice while
building the 802.11 header for a given frame if the frame will
actually be transmitted to the station we initially looked up.
This happens for 4-addr VLAN interfaces and TDLS connections, which
both directly send the frame to the station they looked up, though
in the case of TDLS some station conditions need to be checked.
To avoid that, add a variable indicating that we've looked up the
station that the frame is going to be transmitted to, and avoid the
lookup/flag checking if it already has been done.
In the TDLS case, also move the authorized/wme_sta flag assignment
to the correct place, i.e. only when that station is really used.
Before this change, the new lookup should always have succeeded so
that the potentially erroneous data would be overwritten.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1895,6 +1895,7 @@ static struct sk_buff *ieee80211_build_h
bool wme_sta = false, authorized = false, tdls_auth = false;
bool tdls_peer = false, tdls_setup_frame = false;
bool multicast;
+ bool have_station = false;
u16 info_id = 0;
struct ieee80211_chanctx_conf *chanctx_conf;
struct ieee80211_sub_if_data *ap_sdata;
@@ -1919,6 +1920,7 @@ static struct sk_buff *ieee80211_build_h
hdrlen = 30;
authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED);
wme_sta = sta->sta.wme;
+ have_station = true;
}
ap_sdata = container_of(sdata->bss, struct ieee80211_sub_if_data,
u.ap);
@@ -2035,9 +2037,6 @@ static struct sk_buff *ieee80211_build_h
if (sdata->wdev.wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) {
sta = sta_info_get(sdata, skb->data);
if (sta) {
- authorized = test_sta_flag(sta,
- WLAN_STA_AUTHORIZED);
- wme_sta = sta->sta.wme;
tdls_peer = test_sta_flag(sta,
WLAN_STA_TDLS_PEER);
tdls_auth = test_sta_flag(sta,
@@ -2069,6 +2068,9 @@ static struct sk_buff *ieee80211_build_h
memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
memcpy(hdr.addr3, sdata->u.mgd.bssid, ETH_ALEN);
hdrlen = 24;
+ have_station = true;
+ authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED);
+ wme_sta = sta->sta.wme;
} else if (sdata->u.mgd.use_4addr &&
cpu_to_be16(ethertype) != sdata->control_port_protocol) {
fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS |
@@ -2131,7 +2133,7 @@ static struct sk_buff *ieee80211_build_h
* in AP mode)
*/
multicast = is_multicast_ether_addr(hdr.addr1);
- if (!multicast) {
+ if (!multicast && !have_station) {
sta = sta_info_get(sdata, hdr.addr1);
if (sta) {
authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED);

27
package/kernel/mac80211/patches/313-mac80211-drop-4-addr-VLAN-frames-earlier-if-not-conn.patch
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From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 20 Mar 2015 16:24:22 +0100
Subject: [PATCH] mac80211: drop 4-addr VLAN frames earlier if not
connected
If there's no station on the 4-addr VLAN interface, then frames
cannot be transmitted. Drop such frames earlier, before setting
up all the information for them.
We should keep the old check though since that code might be used
for other internally-generated frames.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1921,6 +1921,9 @@ static struct sk_buff *ieee80211_build_h
authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED);
wme_sta = sta->sta.wme;
have_station = true;
+ } else if (sdata->wdev.use_4addr) {
+ ret = -ENOLINK;
+ goto free;
}
ap_sdata = container_of(sdata->bss, struct ieee80211_sub_if_data,
u.ap);

33
package/kernel/mac80211/patches/314-mac80211-mesh-avoid-pointless-station-lookup.patch
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From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 20 Mar 2015 16:24:23 +0100
Subject: [PATCH] mac80211: mesh: avoid pointless station lookup
In ieee80211_build_hdr(), the station is looked up to build the
header correctly (QoS field) and to check for authorization. For
mesh, authorization isn't checked here, and QoS capability is
mandatory, so the station lookup can be avoided.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -2131,12 +2131,14 @@ static struct sk_buff *ieee80211_build_h
}
/*
- * There's no need to try to look up the destination
- * if it is a multicast address (which can only happen
- * in AP mode)
+ * There's no need to try to look up the destination station
+ * if it is a multicast address. In mesh, there's no need to
+ * look up the station at all as it always must be QoS capable
+ * and mesh mode checks authorization later.
*/
multicast = is_multicast_ether_addr(hdr.addr1);
- if (!multicast && !have_station) {
+ if (!multicast && !have_station &&
+ !ieee80211_vif_is_mesh(&sdata->vif)) {
sta = sta_info_get(sdata, hdr.addr1);
if (sta) {
authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED);

267
package/kernel/mac80211/patches/315-mac80211-avoid-duplicate-TX-path-station-lookup.patch
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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
@@ -1111,11 +1111,13 @@ 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;
@@ -1138,17 +1140,22 @@ 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) &&
@@ -1486,7 +1493,7 @@ 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;
@@ -1519,7 +1526,8 @@ 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;
@@ -1535,7 +1543,7 @@ 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);
@@ -1591,7 +1599,8 @@ 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);
@@ -1626,7 +1635,7 @@ 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)
@@ -1847,7 +1856,7 @@ 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;
@@ -1878,7 +1887,8 @@ 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;
@@ -1921,6 +1931,7 @@ 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;
@@ -2074,6 +2085,7 @@ 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 |
@@ -2137,13 +2149,18 @@ 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 */
@@ -2321,6 +2338,7 @@ 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);
@@ -2329,7 +2347,7 @@ 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;
@@ -2337,7 +2355,7 @@ 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();
}
@@ -2365,10 +2383,11 @@ 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;
@@ -2426,7 +2445,7 @@ 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;
@@ -3164,7 +3183,7 @@ 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);
}
@@ -3296,6 +3315,6 @@ 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();
}

2
package/kernel/mac80211/patches/522-mac80211_configure_antenna_gain.patch
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@ -87,7 +87,7 @@
CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1336,6 +1336,7 @@ struct ieee80211_local {
@@ -1333,6 +1333,7 @@ struct ieee80211_local {
int dynamic_ps_forced_timeout;
int user_power_level; /* in dBm, for all interfaces */

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