mac80211: clean up rate selection

Move some code out of rc80211_simple since it's probably needed for all rate
selection algorithms, and fix iwlwifi accordingly. While at it, clean up the
rate_control_get_rate() interface.

Signed-off-by: Stefano Brivio <stefano.brivio@polimi.it>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 8 deletions

diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c
index 3c552fed2af5..3978ad606b5c 100644
--- a/net/mac80211/ieee80211_sta.c
+++ b/net/mac80211/ieee80211_sta.c
@@ -2463,9 +2463,8 @@ static int ieee80211_sta_join_ibss(struct net_device *dev,
         struct sk_buff *skb;
         struct ieee80211_mgmt *mgmt;
         struct ieee80211_tx_control control;
-        struct ieee80211_rate *rate;
         struct ieee80211_hw_mode *mode;
-        struct rate_control_extra extra;
+        struct rate_selection ratesel;
         u8 *pos;
         struct ieee80211_sub_if_data *sdata;
 
@@ -2550,18 +2549,16 @@ static int ieee80211_sta_join_ibss(struct net_device *dev,
                 }
 
                 memset(&control, 0, sizeof(control));
-                memset(&extra, 0, sizeof(extra));
-                extra.mode = local->oper_hw_mode;
-                rate = rate_control_get_rate(local, dev, skb, &extra);
-                if (!rate) {
+                rate_control_get_rate(dev, local->oper_hw_mode, skb, &ratesel);
+                if (!ratesel.rate) {
                         printk(KERN_DEBUG "%s: Failed to determine TX rate "
                                "for IBSS beacon\n", dev->name);
                         break;
                 }
                 control.tx_rate =
                         ((sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE) &&
-                        (rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
-                        rate->val2 : rate->val;
+                        (ratesel.rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
+                        ratesel.rate->val2 : ratesel.rate->val;
                 control.antenna_sel_tx = local->hw.conf.antenna_sel_tx;
                 control.power_level = local->hw.conf.power_level;
                 control.flags |= IEEE80211_TXCTL_NO_ACK;