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, 8 insertions, 5 deletions

diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c
index afce9338d83a..9b682a3cf5e4 100644
--- a/drivers/net/wireless/b43/xmit.c
+++ b/drivers/net/wireless/b43/xmit.c
@@ -201,13 +201,14 @@ int b43_generate_txhdr(struct b43_wldev *dev,
         u32 mac_ctl = 0;
         u16 phy_ctl = 0;
         u8 extra_ft = 0;
+        struct ieee80211_rate *txrate;
 
         memset(txhdr, 0, sizeof(*txhdr));
 
-        WARN_ON(!txctl->tx_rate);
-        rate = txctl->tx_rate ? txctl->tx_rate->hw_value : B43_CCK_RATE_1MB;
+        txrate = ieee80211_get_tx_rate(dev->wl->hw, txctl);
+        rate = txrate ? txrate->hw_value : B43_CCK_RATE_1MB;
         rate_ofdm = b43_is_ofdm_rate(rate);
-        fbrate = txctl->alt_retry_rate ? : txctl->tx_rate;
+        fbrate = ieee80211_get_alt_retry_rate(dev->wl->hw, txctl) ? : txrate;
         rate_fb = fbrate->hw_value;
         rate_fb_ofdm = b43_is_ofdm_rate(rate_fb);
 
@@ -336,9 +337,11 @@ int b43_generate_txhdr(struct b43_wldev *dev,
                 int rts_rate, rts_rate_fb;
                 int rts_rate_ofdm, rts_rate_fb_ofdm;
                 struct b43_plcp_hdr6 *plcp;
+                struct ieee80211_rate *rts_cts_rate;
 
-                WARN_ON(!txctl->rts_cts_rate);
-                rts_rate = txctl->rts_cts_rate ? txctl->rts_cts_rate->hw_value : B43_CCK_RATE_1MB;
+                rts_cts_rate = ieee80211_get_rts_cts_rate(dev->wl->hw, txctl);
+
+                rts_rate = rts_cts_rate ? rts_cts_rate->hw_value : B43_CCK_RATE_1MB;
                 rts_rate_ofdm = b43_is_ofdm_rate(rts_rate);
                 rts_rate_fb = b43_calc_fallback_rate(rts_rate);
                 rts_rate_fb_ofdm = b43_is_ofdm_rate(rts_rate_fb);