ath9k: We don't support non-HT devices, so remove superfluous code.

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

1 files changed, 0 insertions, 39 deletions

diff --git a/drivers/net/wireless/ath9k/xmit.c b/drivers/net/wireless/ath9k/xmit.c
index 8937728b0301..44735b6d9f04 100644
--- a/drivers/net/wireless/ath9k/xmit.c
+++ b/drivers/net/wireless/ath9k/xmit.c
@@ -14,10 +14,6 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-/*
- * Implementation of transmit path.
- */
-
 #include "core.h"
 
 #define BITS_PER_BYTE           8
@@ -699,41 +695,6 @@ static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf)
         }
 
         /*
-         * For non-HT devices, calculate RTS/CTS duration in software
-         * and disable multi-rate retry.
-         */
-        if (flags && !(ah->ah_caps.hw_caps & ATH9K_HW_CAP_HT)) {
-                /*
-                 * Compute the transmit duration based on the frame
-                 * size and the size of an ACK frame.  We call into the
-                 * HAL to do the computation since it depends on the
-                 * characteristics of the actual PHY being used.
-                 *
-                 * NB: CTS is assumed the same size as an ACK so we can
-                 *     use the precalculated ACK durations.
-                 */
-                if (flags & ATH9K_TXDESC_RTSENA) {    /* SIFS + CTS */
-                        ctsduration += bf_isshpreamble(bf) ?
-                                rt->info[cix].spAckDuration :
-                                rt->info[cix].lpAckDuration;
-                }
-
-                ctsduration += series[0].PktDuration;
-
-                if ((bf->bf_flags & ATH9K_TXDESC_NOACK) == 0) { /* SIFS + ACK */
-                        ctsduration += bf_isshpreamble(bf) ?
-                                rt->info[rix].spAckDuration :
-                                rt->info[rix].lpAckDuration;
-                }
-
-                /*
-                 * Disable multi-rate retry when using RTS/CTS by clearing
-                 * series 1, 2 and 3.
-                 */
-                memset(&series[1], 0, sizeof(struct ath9k_11n_rate_series) * 3);
-        }
-
-        /*
          * set dur_update_en for l-sig computation except for PS-Poll frames
          */
         ath9k_hw_set11n_ratescenario(ah, ds, lastds,