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mac80211: move TX station pointer and restructure TX

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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>
This commit is contained in:
Thomas Huehn
2012-07-23 21:33:42 +02:00
committed by Johannes Berg
parent ab09587740
commit 36323f817a
53 changed files with 232 additions and 132 deletions
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9
drivers/net/wireless/ath/ath9k/xmit.c
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@@ -1773,11 +1773,12 @@ static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq,
TX_STAT_INC(txq->axq_qnum, queued);
}
static void setup_frame_info(struct ieee80211_hw *hw, struct sk_buff *skb,
static void setup_frame_info(struct ieee80211_hw *hw,
struct ieee80211_sta *sta,
struct sk_buff *skb,
int framelen)
{
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
struct ieee80211_sta *sta = tx_info->control.sta;
struct ieee80211_key_conf *hw_key = tx_info->control.hw_key;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
const struct ieee80211_rate *rate;
@@ -1935,7 +1936,7 @@ int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_sta *sta = info->control.sta;
struct ieee80211_sta *sta = txctl->sta;
struct ieee80211_vif *vif = info->control.vif;
struct ath_softc *sc = hw->priv;
struct ath_txq *txq = txctl->txq;
@@ -1979,7 +1980,7 @@ int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
!ieee80211_is_data(hdr->frame_control))
info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
setup_frame_info(hw, skb, frmlen);
setup_frame_info(hw, sta, skb, frmlen);
/*
* At this point, the vif, hw_key and sta pointers in the tx control