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, 7 deletions

diff --git a/drivers/net/wireless/rtl8187_dev.c b/drivers/net/wireless/rtl8187_dev.c
index e14c84248686..86a09b49681c 100644
--- a/drivers/net/wireless/rtl8187_dev.c
+++ b/drivers/net/wireless/rtl8187_dev.c
@@ -179,21 +179,17 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb,
         flags = skb->len;
         flags |= RTL8187_TX_FLAG_NO_ENCRYPT;
 
-        BUG_ON(!control->tx_rate);
-
-        flags |= control->tx_rate->hw_value << 24;
+        flags |= ieee80211_get_tx_rate(dev, control)->hw_value << 24;
         if (ieee80211_get_morefrag((struct ieee80211_hdr *)skb->data))
                 flags |= RTL8187_TX_FLAG_MORE_FRAG;
         if (control->flags & IEEE80211_TXCTL_USE_RTS_CTS) {
-                BUG_ON(!control->rts_cts_rate);
                 flags |= RTL8187_TX_FLAG_RTS;
-                flags |= control->rts_cts_rate->hw_value << 19;
+                flags |= ieee80211_get_rts_cts_rate(dev, control)->hw_value << 19;
                 rts_dur = ieee80211_rts_duration(dev, priv->vif,
                                                  skb->len, control);
         } else if (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) {
-                BUG_ON(!control->rts_cts_rate);
                 flags |= RTL8187_TX_FLAG_CTS;
-                flags |= control->rts_cts_rate->hw_value << 19;
+                flags |= ieee80211_get_rts_cts_rate(dev, control)->hw_value << 19;
         }
 
         hdr = (struct rtl8187_tx_hdr *)skb_push(skb, sizeof(*hdr));