mac80211: move TX info into skb->cb
This patch converts mac80211 and all drivers to have transmit
information and status in skb->cb rather than allocating extra
memory for it and copying all the data around. To make it fit,
a union is used where only data that is necessary for all steps
is kept outside of the union.
A number of fixes were done by Ivo, as well as the rt2x00 part
of this patch.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 65a34fd..d9109de 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -258,7 +258,7 @@
__le16 ieee80211_rts_duration(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl)
+ const struct ieee80211_tx_info *frame_txctl)
{
struct ieee80211_local *local = hw_to_local(hw);
struct ieee80211_rate *rate;
@@ -272,7 +272,7 @@
short_preamble = sdata->bss_conf.use_short_preamble;
- rate = &sband->bitrates[frame_txctl->rts_cts_rate_idx];
+ rate = &sband->bitrates[frame_txctl->control.rts_cts_rate_idx];
erp = 0;
if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
@@ -295,7 +295,7 @@
__le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl)
+ const struct ieee80211_tx_info *frame_txctl)
{
struct ieee80211_local *local = hw_to_local(hw);
struct ieee80211_rate *rate;
@@ -309,7 +309,7 @@
short_preamble = sdata->bss_conf.use_short_preamble;
- rate = &sband->bitrates[frame_txctl->rts_cts_rate_idx];
+ rate = &sband->bitrates[frame_txctl->control.rts_cts_rate_idx];
erp = 0;
if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
erp = rate->flags & IEEE80211_RATE_ERP_G;
@@ -317,7 +317,7 @@
/* Data frame duration */
dur = ieee80211_frame_duration(local, frame_len, rate->bitrate,
erp, short_preamble);
- if (!(frame_txctl->flags & IEEE80211_TXCTL_NO_ACK)) {
+ if (!(frame_txctl->flags & IEEE80211_TX_CTL_NO_ACK)) {
/* ACK duration */
dur += ieee80211_frame_duration(local, 10, rate->bitrate,
erp, short_preamble);