1 files changed, 4 insertions, 12 deletions

diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 944e9b518f1..60159f4ee53 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -172,7 +172,7 @@ static void ath9k_iowrite32(void *hw_priv, u32 val, u32 reg_offset)
         struct ath_common *common = ath9k_hw_common(ah);
         struct ath_softc *sc = (struct ath_softc *) common->priv;
 
-        if (ah->config.serialize_regmode == SER_REG_MODE_ON) {
+        if (NR_CPUS > 1 && ah->config.serialize_regmode == SER_REG_MODE_ON) {
                 unsigned long flags;
                 spin_lock_irqsave(&sc->sc_serial_rw, flags);
                 iowrite32(val, sc->mem + reg_offset);
@@ -188,7 +188,7 @@ static unsigned int ath9k_ioread32(void *hw_priv, u32 reg_offset)
         struct ath_softc *sc = (struct ath_softc *) common->priv;
         u32 val;
 
-        if (ah->config.serialize_regmode == SER_REG_MODE_ON) {
+        if (NR_CPUS > 1 && ah->config.serialize_regmode == SER_REG_MODE_ON) {
                 unsigned long flags;
                 spin_lock_irqsave(&sc->sc_serial_rw, flags);
                 val = ioread32(sc->mem + reg_offset);
@@ -219,7 +219,7 @@ static unsigned int ath9k_reg_rmw(void *hw_priv, u32 reg_offset, u32 set, u32 cl
         unsigned long uninitialized_var(flags);
         u32 val;
 
-        if (ah->config.serialize_regmode == SER_REG_MODE_ON) {
+        if (NR_CPUS > 1 && ah->config.serialize_regmode == SER_REG_MODE_ON) {
                 spin_lock_irqsave(&sc->sc_serial_rw, flags);
                 val = __ath9k_reg_rmw(sc, reg_offset, set, clr);
                 spin_unlock_irqrestore(&sc->sc_serial_rw, flags);
@@ -484,19 +484,11 @@ static void ath9k_init_misc(struct ath_softc *sc)
 {
         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
         int i = 0;
+
         setup_timer(&common->ani.timer, ath_ani_calibrate, (unsigned long)sc);
 
         sc->config.txpowlimit = ATH_TXPOWER_MAX;
-
-        if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
-                sc->sc_flags |= SC_OP_TXAGGR;
-                sc->sc_flags |= SC_OP_RXAGGR;
-        }
-
-        sc->rx.defant = ath9k_hw_getdefantenna(sc->sc_ah);
-
         memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN);
-
         sc->beacon.slottime = ATH9K_SLOT_TIME_9;
 
         for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++)