mac80211: use rate index in TX control

This patch modifies struct ieee80211_tx_control to give band
info and the rate index (instead of rate pointers) to drivers.
This mostly serves to reduce the TX control structure size to
make it fit into skb->cb so that the fragmentation code can
put it there and we can think about passing it to drivers that
way in the future.

The rt2x00 driver update was done by Ivo, thanks.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 7877d3b3f4cb..604149369dc9 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2406,15 +2406,15 @@ static int ieee80211_sta_join_ibss(struct net_device *dev,
 
                 memset(&control, 0, sizeof(control));
                 rate_control_get_rate(dev, sband, skb, &ratesel);
-                if (!ratesel.rate) {
+                if (ratesel.rate_idx < 0) {
                         printk(KERN_DEBUG "%s: Failed to determine TX rate "
                                "for IBSS beacon\n", dev->name);
                         break;
                 }
                 control.vif = &sdata->vif;
-                control.tx_rate = ratesel.rate;
+                control.tx_rate_idx = ratesel.rate_idx;
                 if (sdata->bss_conf.use_short_preamble &&
-                    ratesel.rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
+                    sband->bitrates[ratesel.rate_idx].flags & IEEE80211_RATE_SHORT_PREAMBLE)
                         control.flags |= IEEE80211_TXCTL_SHORT_PREAMBLE;
                 control.antenna_sel_tx = local->hw.conf.antenna_sel_tx;
                 control.flags |= IEEE80211_TXCTL_NO_ACK;