} // if (byFBOption == AUTO_FB_NONE)
        } else if (byPktType == PK_TYPE_11A) {
                if (byFBOption == AUTO_FB_NONE) {
-                       PSRTS_ab pBuf = (PSRTS_ab)pvRTS;
+                       struct vnt_rts_ab *buf = pvRTS;
                        /* Get SignalField, ServiceField & Length */
                        vnt_get_phy_field(pDevice, uRTSFrameLen,
                                          pDevice->byTopOFDMBasicRate,
-                                         byPktType, &pBuf->ab);
-                       //Get Duration
-                       pBuf->wDuration = cpu_to_le16((unsigned short)s_uGetRTSCTSDuration(pDevice, RTSDUR_AA, cbFrameLength, byPktType, wCurrentRate, bNeedAck, byFBOption)); //0:RTSDuration_aa, 0:5G, 0: 5G OFDMData
-                       pBuf->data.duration = pBuf->wDuration;
+                                         byPktType, &buf->ab);
+                       /* Get Duration */
+                       buf->duration =
+                               cpu_to_le16((u16)s_uGetRTSCTSDuration(pDevice, RTSDUR_AA, cbFrameLength,
+                                                                     byPktType, wCurrentRate, bNeedAck,
+                                                                     byFBOption));
+                       buf->data.duration = buf->duration;
                        /* Get RTS Frame body */
-                       pBuf->data.frame_control =
+                       buf->data.frame_control =
                                        cpu_to_le16(IEEE80211_FTYPE_CTL |
                                                    IEEE80211_STYPE_RTS);
 
 
                        if ((pDevice->eOPMode == OP_MODE_ADHOC) ||
                            (pDevice->eOPMode == OP_MODE_AP)) {
-                               memcpy(&pBuf->data.ra, psEthHeader->abyDstAddr, ETH_ALEN);
+                               memcpy(&buf->data.ra, psEthHeader->abyDstAddr, ETH_ALEN);
                        } else {
-                               memcpy(&pBuf->data.ra, pDevice->abyBSSID, ETH_ALEN);
+                               memcpy(&buf->data.ra, pDevice->abyBSSID, ETH_ALEN);
                        }
 
                        if (pDevice->eOPMode == OP_MODE_AP)
-                               memcpy(&pBuf->data.ta, pDevice->abyBSSID, ETH_ALEN);
+                               memcpy(&buf->data.ta, pDevice->abyBSSID, ETH_ALEN);
                        else
-                               memcpy(&pBuf->data.ta, psEthHeader->abySrcAddr, ETH_ALEN);
+                               memcpy(&buf->data.ta, psEthHeader->abySrcAddr, ETH_ALEN);
 
                } else {
                        PSRTS_a_FB pBuf = (PSRTS_a_FB)pvRTS;
                                memcpy(&pBuf->data.ta, psEthHeader->abySrcAddr, ETH_ALEN);
                }
        } else if (byPktType == PK_TYPE_11B) {
-               PSRTS_ab pBuf = (PSRTS_ab)pvRTS;
+               struct vnt_rts_ab *buf = pvRTS;
                /* Get SignalField, ServiceField & Length */
                vnt_get_phy_field(pDevice, uRTSFrameLen,
                                  pDevice->byTopCCKBasicRate,
-                                 PK_TYPE_11B, &pBuf->ab);
-               //Get Duration
-               pBuf->wDuration = cpu_to_le16((unsigned short)s_uGetRTSCTSDuration(pDevice, RTSDUR_BB, cbFrameLength, byPktType, wCurrentRate, bNeedAck, byFBOption)); //0:RTSDuration_bb, 1:2.4G, 1:CCKData
-               pBuf->data.duration = pBuf->wDuration;
+                                 PK_TYPE_11B, &buf->ab);
+               /* Get Duration */
+               buf->duration =
+                       cpu_to_le16((u16)s_uGetRTSCTSDuration(pDevice, RTSDUR_BB, cbFrameLength,
+                                                             byPktType, wCurrentRate, bNeedAck,
+                                                             byFBOption));
+               buf->data.duration = buf->duration;
                /* Get RTS Frame body */
-               pBuf->data.frame_control =
+               buf->data.frame_control =
                        cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
 
                if ((pDevice->eOPMode == OP_MODE_ADHOC) ||
                    (pDevice->eOPMode == OP_MODE_AP)) {
-                       memcpy(&pBuf->data.ra, psEthHeader->abyDstAddr, ETH_ALEN);
+                       memcpy(&buf->data.ra, psEthHeader->abyDstAddr, ETH_ALEN);
                } else {
-                       memcpy(&pBuf->data.ra, pDevice->abyBSSID, ETH_ALEN);
+                       memcpy(&buf->data.ra, pDevice->abyBSSID, ETH_ALEN);
                }
 
                if (pDevice->eOPMode == OP_MODE_AP)
-                       memcpy(&pBuf->data.ta, pDevice->abyBSSID, ETH_ALEN);
+                       memcpy(&buf->data.ta, pDevice->abyBSSID, ETH_ALEN);
                else
-                       memcpy(&pBuf->data.ta, psEthHeader->abySrcAddr, ETH_ALEN);
+                       memcpy(&buf->data.ta, psEthHeader->abySrcAddr, ETH_ALEN);
        }
 }
 
                        if (bRTS == true) {
                                pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
                                pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab));
-                               pvRTS = (PSRTS_ab) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
+                               pvRTS = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
                                pvCTS = NULL;
                                pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize +
-                                       sizeof(struct vnt_rrv_time_ab) + cbMICHDR + sizeof(SRTS_ab));
+                                       sizeof(struct vnt_rrv_time_ab) + cbMICHDR + sizeof(struct vnt_rts_ab));
                                cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
-                                       cbMICHDR + sizeof(SRTS_ab) + sizeof(struct vnt_tx_datahead_ab);
+                                       cbMICHDR + sizeof(struct vnt_rts_ab) + sizeof(struct vnt_tx_datahead_ab);
                        } else { //RTS_needless, need MICHDR
                                pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
                                pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab));