ath9k: properly use the mac80211 rate control api

This patch changes ath9k to pass proper MCS indexes and flags
between the RC and the rest of the driver code.
sc->cur_rate_table remains, as it's used by the RC code internally,
but the rest of the driver code no longer uses it, so a potential
new RC for ath9k would not have to update it.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 4 insertions, 8 deletions

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 53a7b980d8f6..63d84613dc96 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -148,22 +148,19 @@ bool ath9k_get_channel_edges(struct ath_hw *ah,
 }
 
 u16 ath9k_hw_computetxtime(struct ath_hw *ah,
-                           const struct ath_rate_table *rates,
+                           u8 phy, int kbps,
                            u32 frameLen, u16 rateix,
                            bool shortPreamble)
 {
         u32 bitsPerSymbol, numBits, numSymbols, phyTime, txTime;
-        u32 kbps;
-
-        kbps = rates->info[rateix].ratekbps;
 
         if (kbps == 0)
                 return 0;
 
-        switch (rates->info[rateix].phy) {
+        switch (phy) {
         case WLAN_RC_PHY_CCK:
                 phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS;
-                if (shortPreamble && rates->info[rateix].short_preamble)
+                if (shortPreamble)
                         phyTime >>= 1;
                 numBits = frameLen << 3;
                 txTime = CCK_SIFS_TIME + phyTime + ((numBits * 1000) / kbps);
@@ -194,8 +191,7 @@ u16 ath9k_hw_computetxtime(struct ath_hw *ah,
                 break;
         default:
                 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
-                          "Unknown phy %u (rate ix %u)\n",
-                          rates->info[rateix].phy, rateix);
+                          "Unknown phy %u (rate ix %u)\n", phy, rateix);
                 txTime = 0;
                 break;
         }