mac80211: move TX station pointer and restructure TX
Remove the control.sta pointer from ieee80211_tx_info to free up
sufficient space in the TX skb control buffer for the upcoming
Transmit Power Control (TPC).
Instead, the pointer is now on the stack in a new control struct
that is passed as a function parameter to the drivers' tx method.
Signed-off-by: Thomas Huehn <thomas@net.t-labs.tu-berlin.de>
Signed-off-by: Alina Friedrichsen <x-alina@gmx.net>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
[reworded commit message]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index f7e74a0..e488b94 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -315,6 +315,7 @@
static void rt2x00queue_create_tx_descriptor_ht(struct rt2x00_dev *rt2x00dev,
struct sk_buff *skb,
struct txentry_desc *txdesc,
+ struct ieee80211_sta *sta,
const struct rt2x00_rate *hwrate)
{
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
@@ -322,11 +323,11 @@
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct rt2x00_sta *sta_priv = NULL;
- if (tx_info->control.sta) {
+ if (sta) {
txdesc->u.ht.mpdu_density =
- tx_info->control.sta->ht_cap.ampdu_density;
+ sta->ht_cap.ampdu_density;
- sta_priv = sta_to_rt2x00_sta(tx_info->control.sta);
+ sta_priv = sta_to_rt2x00_sta(sta);
txdesc->u.ht.wcid = sta_priv->wcid;
}
@@ -341,8 +342,8 @@
* MIMO PS should be set to 1 for STA's using dynamic SM PS
* when using more then one tx stream (>MCS7).
*/
- if (tx_info->control.sta && txdesc->u.ht.mcs > 7 &&
- ((tx_info->control.sta->ht_cap.cap &
+ if (sta && txdesc->u.ht.mcs > 7 &&
+ ((sta->ht_cap.cap &
IEEE80211_HT_CAP_SM_PS) >>
IEEE80211_HT_CAP_SM_PS_SHIFT) ==
WLAN_HT_CAP_SM_PS_DYNAMIC)
@@ -409,7 +410,8 @@
static void rt2x00queue_create_tx_descriptor(struct rt2x00_dev *rt2x00dev,
struct sk_buff *skb,
- struct txentry_desc *txdesc)
+ struct txentry_desc *txdesc,
+ struct ieee80211_sta *sta)
{
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
@@ -503,7 +505,7 @@
if (test_bit(REQUIRE_HT_TX_DESC, &rt2x00dev->cap_flags))
rt2x00queue_create_tx_descriptor_ht(rt2x00dev, skb, txdesc,
- hwrate);
+ sta, hwrate);
else
rt2x00queue_create_tx_descriptor_plcp(rt2x00dev, skb, txdesc,
hwrate);
@@ -595,7 +597,7 @@
* after that we are free to use the skb->cb array
* for our information.
*/
- rt2x00queue_create_tx_descriptor(queue->rt2x00dev, skb, &txdesc);
+ rt2x00queue_create_tx_descriptor(queue->rt2x00dev, skb, &txdesc, NULL);
/*
* All information is retrieved from the skb->cb array,
@@ -740,7 +742,7 @@
* after that we are free to use the skb->cb array
* for our information.
*/
- rt2x00queue_create_tx_descriptor(rt2x00dev, intf->beacon->skb, &txdesc);
+ rt2x00queue_create_tx_descriptor(rt2x00dev, intf->beacon->skb, &txdesc, NULL);
/*
* Fill in skb descriptor