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/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c
index a849b745bdb5..14cde36f5070 100644
--- a/net/mac80211/rc80211_pid_algo.c
+++ b/net/mac80211/rc80211_pid_algo.c
@@ -266,7 +266,7 @@ static void rate_control_pid_tx_status(void *priv, struct net_device *dev,
 
         /* Ignore all frames that were sent with a different rate than the rate
          * we currently advise mac80211 to use. */
-        if (status->control.tx_rate != &sband->bitrates[sta->txrate_idx])
+        if (status->control.tx_rate_idx != sta->txrate_idx)
                 goto unlock;
 
         spinfo = sta->rate_ctrl_priv;
@@ -330,7 +330,7 @@ static void rate_control_pid_get_rate(void *priv, struct net_device *dev,
         fc = le16_to_cpu(hdr->frame_control);
         if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
             is_multicast_ether_addr(hdr->addr1) || !sta) {
-                sel->rate = rate_lowest(local, sband, sta);
+                sel->rate_idx = rate_lowest_index(local, sband, sta);
                 rcu_read_unlock();
                 return;
         }
@@ -349,7 +349,7 @@ static void rate_control_pid_get_rate(void *priv, struct net_device *dev,
 
         rcu_read_unlock();
 
-        sel->rate = &sband->bitrates[rateidx];
+        sel->rate_idx = rateidx;
 
 #ifdef CONFIG_MAC80211_DEBUGFS
         rate_control_pid_event_tx_rate(