1 files changed, 5 insertions, 14 deletions

diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index d457cb3bd772..18d76ede859d 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -175,18 +175,6 @@ static const struct ath_ops ath9k_common_ops = {
         .write = ath9k_iowrite32,
 };
 
-static int count_streams(unsigned int chainmask, int max)
-{
-        int streams = 0;
-
-        do {
-                if (++streams == max)
-                        break;
-        } while ((chainmask = chainmask & (chainmask - 1)));
-
-        return streams;
-}
-
 /**************************/
 /*     Initialization     */
 /**************************/
@@ -208,6 +196,9 @@ static void setup_ht_cap(struct ath_softc *sc,
         if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_LDPC)
                 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
 
+        if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_SGI_20)
+                ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
+
         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_8;
 
@@ -224,8 +215,8 @@ static void setup_ht_cap(struct ath_softc *sc,
 
         /* set up supported mcs set */
         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
-        tx_streams = count_streams(common->tx_chainmask, max_streams);
-        rx_streams = count_streams(common->rx_chainmask, max_streams);
+        tx_streams = ath9k_cmn_count_streams(common->tx_chainmask, max_streams);
+        rx_streams = ath9k_cmn_count_streams(common->rx_chainmask, max_streams);
 
         ath_print(common, ATH_DBG_CONFIG,
                   "TX streams %d, RX streams: %d\n",