ath5k: Extend rate_duration

 * Extend ieee80211_generic_frame_duration to support the various
 bwmodes.

 * Better document what's going on with ack bitrates and update
 write_rate_duration to support the standard ack bitrates (when
 we don't set the high bit).

 * Get rid of set_ack_bitrate_high and introduce a flag on ath5k_hw
 for this (we only called the function on init anyway so there is no
 difference).

 Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>

Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 9af7e461a236..526d8bc412c0 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -2420,7 +2420,9 @@ ath5k_init(struct ath5k_softc *sc)
         for (i = 0; i < common->keymax; i++)
                 ath_hw_keyreset(common, (u16) i);
 
-        ath5k_hw_set_ack_bitrate_high(ah, true);
+        /* Use higher rates for acks instead of base
+         * rate */
+        ah->ah_ack_bitrate_high = true;
 
         for (i = 0; i < ARRAY_SIZE(sc->bslot); i++)
                 sc->bslot[i] = NULL;