bool card_set_beacon_period(struct vnt_private *priv,
                          unsigned short beacon_interval)
 {
-       u64 qwNextTBTT;
+       u64 next_tbtt;
 
-       qwNextTBTT = vt6655_get_current_tsf(priv); /* Get Local TSF counter */
+       next_tbtt = vt6655_get_current_tsf(priv); /* Get Local TSF counter */
 
-       qwNextTBTT = CARDqGetNextTBTT(qwNextTBTT, beacon_interval);
+       next_tbtt = CARDqGetNextTBTT(next_tbtt, beacon_interval);
 
        /* set HW beacon interval */
        iowrite16(beacon_interval, priv->port_offset + MAC_REG_BI);
        priv->beacon_interval = beacon_interval;
        /* Set NextTBTT */
-       qwNextTBTT =  le64_to_cpu(qwNextTBTT);
-       iowrite32((u32)qwNextTBTT, priv->port_offset + MAC_REG_NEXTTBTT);
-       iowrite32((u32)(qwNextTBTT >> 32), priv->port_offset + MAC_REG_NEXTTBTT + 4);
+       next_tbtt =  le64_to_cpu(next_tbtt);
+       iowrite32((u32)next_tbtt, priv->port_offset + MAC_REG_NEXTTBTT);
+       iowrite32((u32)(next_tbtt >> 32), priv->port_offset + MAC_REG_NEXTTBTT + 4);
        vt6655_mac_reg_bits_on(priv->port_offset, MAC_REG_TFTCTL, TFTCTL_TBTTSYNCEN);
 
        return true;
                           unsigned short beacon_interval)
 {
        void __iomem *iobase = priv->port_offset;
-       u64 qwNextTBTT;
+       u64 next_tbtt;
 
-       qwNextTBTT = vt6655_get_current_tsf(priv); /* Get Local TSF counter */
+       next_tbtt = vt6655_get_current_tsf(priv); /* Get Local TSF counter */
 
-       qwNextTBTT = CARDqGetNextTBTT(qwNextTBTT, beacon_interval);
+       next_tbtt = CARDqGetNextTBTT(next_tbtt, beacon_interval);
        /* Set NextTBTT */
-       qwNextTBTT =  le64_to_cpu(qwNextTBTT);
-       iowrite32((u32)qwNextTBTT, iobase + MAC_REG_NEXTTBTT);
-       iowrite32((u32)(qwNextTBTT >> 32), iobase + MAC_REG_NEXTTBTT + 4);
+       next_tbtt =  le64_to_cpu(next_tbtt);
+       iowrite32((u32)next_tbtt, iobase + MAC_REG_NEXTTBTT);
+       iowrite32((u32)(next_tbtt >> 32), iobase + MAC_REG_NEXTTBTT + 4);
        vt6655_mac_reg_bits_on(iobase, MAC_REG_TFTCTL, TFTCTL_TBTTSYNCEN);
 }