}
 
 static u16 vnt_rxtx_datahead_g(struct vnt_usb_send_context *tx_context,
-               u8 pkt_type, u16 rate, struct vnt_tx_datahead_g *buf,
+               u16 rate, struct vnt_tx_datahead_g *buf,
                u32 frame_len, int need_ack)
 {
 
                                (struct ieee80211_hdr *)tx_context->skb->data;
 
        /* Get SignalField,ServiceField,Length */
-       vnt_get_phy_field(priv, frame_len, rate, pkt_type, &buf->a);
+       vnt_get_phy_field(priv, frame_len, rate, tx_context->pkt_type, &buf->a);
        vnt_get_phy_field(priv, frame_len, priv->top_cck_basic_rate,
                                                        PK_TYPE_11B, &buf->b);
 
                buf->duration_a = dur;
                buf->duration_b = dur;
        } else {
-               buf->duration_a = vnt_get_duration_le(priv, pkt_type, need_ack);
+               buf->duration_a = vnt_get_duration_le(priv,
+                                               tx_context->pkt_type, need_ack);
                buf->duration_b = vnt_get_duration_le(priv,
                                                        PK_TYPE_11B, need_ack);
        }
 }
 
 static u16 vnt_rxtx_datahead_g_fb(struct vnt_usb_send_context *tx_context,
-               u8 pkt_type, u16 rate, struct vnt_tx_datahead_g_fb *buf,
+               u16 rate, struct vnt_tx_datahead_g_fb *buf,
                u32 frame_len, int need_ack)
 {
        struct vnt_private *priv = tx_context->priv;
 
        /* Get SignalField,ServiceField,Length */
-       vnt_get_phy_field(priv, frame_len, rate, pkt_type, &buf->a);
+       vnt_get_phy_field(priv, frame_len, rate, tx_context->pkt_type, &buf->a);
 
        vnt_get_phy_field(priv, frame_len, priv->top_cck_basic_rate,
                                                PK_TYPE_11B, &buf->b);
 
        /* Get Duration and TimeStamp */
-       buf->duration_a = vnt_get_duration_le(priv, pkt_type, need_ack);
+       buf->duration_a = vnt_get_duration_le(priv, tx_context->pkt_type,
+                                             need_ack);
        buf->duration_b = vnt_get_duration_le(priv, PK_TYPE_11B, need_ack);
 
-       buf->duration_a_f0 = vnt_get_duration_le(priv, pkt_type, need_ack);
-       buf->duration_a_f1 = vnt_get_duration_le(priv, pkt_type, need_ack);
+       buf->duration_a_f0 = vnt_get_duration_le(priv, tx_context->pkt_type,
+                                                need_ack);
+       buf->duration_a_f1 = vnt_get_duration_le(priv, tx_context->pkt_type,
+                                                need_ack);
 
        buf->time_stamp_off_a = vnt_time_stamp_off(priv, rate);
        buf->time_stamp_off_b = vnt_time_stamp_off(priv,
 }
 
 static u16 vnt_rxtx_datahead_a_fb(struct vnt_usb_send_context *tx_context,
-               u8 pkt_type, u16 rate, struct vnt_tx_datahead_a_fb *buf,
+               u16 rate, struct vnt_tx_datahead_a_fb *buf,
                u32 frame_len, int need_ack)
 {
        struct vnt_private *priv = tx_context->priv;
+       u8 pkt_type = tx_context->pkt_type;
 
        /* Get SignalField,ServiceField,Length */
        vnt_get_phy_field(priv, frame_len, rate, pkt_type, &buf->a);
 }
 
 static u16 vnt_rxtx_datahead_ab(struct vnt_usb_send_context *tx_context,
-               u8 pkt_type, u16 rate, struct vnt_tx_datahead_ab *buf,
+               u16 rate, struct vnt_tx_datahead_ab *buf,
                u32 frame_len, int need_ack)
 {
        struct vnt_private *priv = tx_context->priv;
                                (struct ieee80211_hdr *)tx_context->skb->data;
 
        /* Get SignalField,ServiceField,Length */
-       vnt_get_phy_field(priv, frame_len, rate, pkt_type, &buf->ab);
+       vnt_get_phy_field(priv, frame_len, rate,
+                         tx_context->pkt_type, &buf->ab);
 
        /* Get Duration and TimeStampOff */
        if (ieee80211_is_pspoll(hdr->frame_control)) {
 
                buf->duration = dur;
        } else {
-               buf->duration = vnt_get_duration_le(priv, pkt_type, need_ack);
+               buf->duration = vnt_get_duration_le(priv, tx_context->pkt_type,
+                                                   need_ack);
        }
 
        buf->time_stamp_off = vnt_time_stamp_off(priv, rate);
 }
 
 static u16 vnt_rxtx_rts_g_head(struct vnt_usb_send_context *tx_context,
-       struct vnt_rts_g *buf, u8 pkt_type, u32 frame_len, int need_ack,
-       u16 current_rate)
+       struct vnt_rts_g *buf, u32 frame_len, int need_ack, u16 current_rate)
 {
        struct vnt_private *priv = tx_context->priv;
        u16 rts_frame_len = 20;
 
        vnt_get_phy_field(priv, rts_frame_len, priv->top_cck_basic_rate,
                PK_TYPE_11B, &buf->b);
-       vnt_get_phy_field(priv, rts_frame_len,
-               priv->top_ofdm_basic_rate, pkt_type, &buf->a);
+       vnt_get_phy_field(priv, rts_frame_len, priv->top_ofdm_basic_rate,
+                         tx_context->pkt_type, &buf->a);
 
        buf->duration_bb = vnt_get_rtscts_duration_le(priv, RTSDUR_BB,
                frame_len, PK_TYPE_11B, priv->top_cck_basic_rate, need_ack);
        buf->duration_aa = vnt_get_rtscts_duration_le(priv, RTSDUR_AA,
-               frame_len, pkt_type, current_rate, need_ack);
+               frame_len, tx_context->pkt_type, current_rate, need_ack);
        buf->duration_ba = vnt_get_rtscts_duration_le(priv, RTSDUR_BA,
-               frame_len, pkt_type, current_rate, need_ack);
+               frame_len, tx_context->pkt_type, current_rate, need_ack);
 
        vnt_fill_ieee80211_rts(tx_context, &buf->data, buf->duration_aa);
 
-       return vnt_rxtx_datahead_g(tx_context, pkt_type, current_rate,
-                       &buf->data_head, frame_len, need_ack);
+       return vnt_rxtx_datahead_g(tx_context, current_rate, &buf->data_head,
+                                  frame_len, need_ack);
 }
 
 static u16 vnt_rxtx_rts_g_fb_head(struct vnt_usb_send_context *tx_context,
-       struct vnt_rts_g_fb *buf, u8 pkt_type, u32 frame_len, int need_ack,
-       u16 current_rate)
+       struct vnt_rts_g_fb *buf, u32 frame_len, int need_ack, u16 current_rate)
 {
        struct vnt_private *priv = tx_context->priv;
        u16 rts_frame_len = 20;
 
        vnt_get_phy_field(priv, rts_frame_len, priv->top_cck_basic_rate,
                PK_TYPE_11B, &buf->b);
-       vnt_get_phy_field(priv, rts_frame_len,
-               priv->top_ofdm_basic_rate, pkt_type, &buf->a);
-
+       vnt_get_phy_field(priv, rts_frame_len, priv->top_ofdm_basic_rate,
+                         tx_context->pkt_type, &buf->a);
 
        buf->duration_bb = vnt_get_rtscts_duration_le(priv, RTSDUR_BB,
                frame_len, PK_TYPE_11B, priv->top_cck_basic_rate, need_ack);
        buf->duration_aa = vnt_get_rtscts_duration_le(priv, RTSDUR_AA,
-               frame_len, pkt_type, current_rate, need_ack);
+               frame_len, tx_context->pkt_type, current_rate, need_ack);
        buf->duration_ba = vnt_get_rtscts_duration_le(priv, RTSDUR_BA,
-               frame_len, pkt_type, current_rate, need_ack);
-
+               frame_len, tx_context->pkt_type, current_rate, need_ack);
 
        buf->rts_duration_ba_f0 = vnt_get_rtscts_duration_le(priv, RTSDUR_BA_F0,
-               frame_len, pkt_type, priv->tx_rate_fb0, need_ack);
+               frame_len, tx_context->pkt_type, priv->tx_rate_fb0, need_ack);
        buf->rts_duration_aa_f0 = vnt_get_rtscts_duration_le(priv, RTSDUR_AA_F0,
-               frame_len, pkt_type, priv->tx_rate_fb0, need_ack);
+               frame_len, tx_context->pkt_type, priv->tx_rate_fb0, need_ack);
        buf->rts_duration_ba_f1 = vnt_get_rtscts_duration_le(priv, RTSDUR_BA_F1,
-               frame_len, pkt_type, priv->tx_rate_fb1, need_ack);
+               frame_len, tx_context->pkt_type, priv->tx_rate_fb1, need_ack);
        buf->rts_duration_aa_f1 = vnt_get_rtscts_duration_le(priv, RTSDUR_AA_F1,
-               frame_len, pkt_type, priv->tx_rate_fb1, need_ack);
+               frame_len, tx_context->pkt_type, priv->tx_rate_fb1, need_ack);
 
        vnt_fill_ieee80211_rts(tx_context, &buf->data, buf->duration_aa);
 
-       return vnt_rxtx_datahead_g_fb(tx_context, pkt_type, current_rate,
-                       &buf->data_head, frame_len, need_ack);
+       return vnt_rxtx_datahead_g_fb(tx_context, current_rate, &buf->data_head,
+                                     frame_len, need_ack);
 }
 
 static u16 vnt_rxtx_rts_ab_head(struct vnt_usb_send_context *tx_context,
-       struct vnt_rts_ab *buf, u8 pkt_type, u32 frame_len, int need_ack,
+       struct vnt_rts_ab *buf, u32 frame_len, int need_ack,
        u16 current_rate)
 {
        struct vnt_private *priv = tx_context->priv;
        u16 rts_frame_len = 20;
 
-       vnt_get_phy_field(priv, rts_frame_len,
-               priv->top_ofdm_basic_rate, pkt_type, &buf->ab);
+       vnt_get_phy_field(priv, rts_frame_len, priv->top_ofdm_basic_rate,
+                         tx_context->pkt_type, &buf->ab);
 
        buf->duration = vnt_get_rtscts_duration_le(priv, RTSDUR_AA, frame_len,
-               pkt_type, current_rate, need_ack);
+                                                  tx_context->pkt_type,
+                                                  current_rate, need_ack);
 
        vnt_fill_ieee80211_rts(tx_context, &buf->data, buf->duration);
 
-       return vnt_rxtx_datahead_ab(tx_context, pkt_type, current_rate,
-                       &buf->data_head, frame_len, need_ack);
+       return vnt_rxtx_datahead_ab(tx_context, current_rate,
+                                   &buf->data_head, frame_len, need_ack);
 }
 
 static u16 vnt_rxtx_rts_a_fb_head(struct vnt_usb_send_context *tx_context,
-       struct vnt_rts_a_fb *buf, u8 pkt_type, u32 frame_len, int need_ack,
-       u16 current_rate)
+       struct vnt_rts_a_fb *buf, u32 frame_len, int need_ack, u16 current_rate)
 {
        struct vnt_private *priv = tx_context->priv;
        u16 rts_frame_len = 20;
 
        vnt_get_phy_field(priv, rts_frame_len,
-               priv->top_ofdm_basic_rate, pkt_type, &buf->a);
+               priv->top_ofdm_basic_rate, tx_context->pkt_type, &buf->a);
 
        buf->duration = vnt_get_rtscts_duration_le(priv, RTSDUR_AA, frame_len,
-               pkt_type, current_rate, need_ack);
+                                                  tx_context->pkt_type,
+                                                  current_rate, need_ack);
 
        buf->rts_duration_f0 = vnt_get_rtscts_duration_le(priv, RTSDUR_AA_F0,
-               frame_len, pkt_type, priv->tx_rate_fb0, need_ack);
+               frame_len, tx_context->pkt_type, priv->tx_rate_fb0, need_ack);
 
        buf->rts_duration_f1 = vnt_get_rtscts_duration_le(priv, RTSDUR_AA_F1,
-               frame_len, pkt_type, priv->tx_rate_fb1, need_ack);
+               frame_len, tx_context->pkt_type, priv->tx_rate_fb1, need_ack);
 
        vnt_fill_ieee80211_rts(tx_context, &buf->data, buf->duration);
 
-       return vnt_rxtx_datahead_a_fb(tx_context, pkt_type, current_rate,
-                       &buf->data_head, frame_len, need_ack);
+       return vnt_rxtx_datahead_a_fb(tx_context, current_rate, &buf->data_head,
+                                     frame_len, need_ack);
 }
 
 static u16 vnt_fill_cts_head(struct vnt_usb_send_context *tx_context,
-       u8 pkt_type, union vnt_tx_data_head *head, u32 frame_len,
+       union vnt_tx_data_head *head, u32 frame_len,
        int need_ack, u16 current_rate)
 {
        struct vnt_private *priv = tx_context->priv;
                vnt_get_phy_field(priv, cts_frame_len,
                        priv->top_cck_basic_rate, PK_TYPE_11B, &buf->b);
                buf->duration_ba = vnt_get_rtscts_duration_le(priv, CTSDUR_BA,
-                       frame_len, pkt_type,
+                       frame_len, tx_context->pkt_type,
                        current_rate, need_ack);
                /* Get CTSDuration_ba_f0 */
                buf->cts_duration_ba_f0 = vnt_get_rtscts_duration_le(priv,
-                       CTSDUR_BA_F0, frame_len, pkt_type,
+                       CTSDUR_BA_F0, frame_len, tx_context->pkt_type,
                        priv->tx_rate_fb0, need_ack);
                /* Get CTSDuration_ba_f1 */
                buf->cts_duration_ba_f1 = vnt_get_rtscts_duration_le(priv,
-                       CTSDUR_BA_F1, frame_len, pkt_type,
+                       CTSDUR_BA_F1, frame_len, tx_context->pkt_type,
                        priv->tx_rate_fb1, need_ack);
                /* Get CTS Frame body */
                buf->data.duration = buf->duration_ba;
 
                memcpy(buf->data.ra, priv->current_net_addr, ETH_ALEN);
 
-               return vnt_rxtx_datahead_g_fb(tx_context, pkt_type,
-                               current_rate, &buf->data_head, frame_len,
-                               need_ack);
+               return vnt_rxtx_datahead_g_fb(tx_context, current_rate,
+                                             &buf->data_head, frame_len,
+                                             need_ack);
        } else {
                struct vnt_cts *buf = &head->cts_g;
                /* Get SignalField,ServiceField,Length */
                        priv->top_cck_basic_rate, PK_TYPE_11B, &buf->b);
                /* Get CTSDuration_ba */
                buf->duration_ba = vnt_get_rtscts_duration_le(priv,
-                       CTSDUR_BA, frame_len, pkt_type,
+                       CTSDUR_BA, frame_len, tx_context->pkt_type,
                        current_rate, need_ack);
                /*Get CTS Frame body*/
                buf->data.duration = buf->duration_ba;
 
                memcpy(buf->data.ra, priv->current_net_addr, ETH_ALEN);
 
-               return vnt_rxtx_datahead_g(tx_context, pkt_type, current_rate,
+               return vnt_rxtx_datahead_g(tx_context, current_rate,
                                &buf->data_head, frame_len, need_ack);
         }
 
 }
 
 static u16 vnt_rxtx_rts(struct vnt_usb_send_context *tx_context,
-       union vnt_tx_head *tx_head, u8 pkt_type, u32 frame_size,
-       int need_ack, u16 current_rate, bool need_mic)
+       union vnt_tx_head *tx_head, u32 frame_size, int need_ack,
+       u16 current_rate, bool need_mic)
 {
        struct vnt_private *priv = tx_context->priv;
        struct vnt_rrv_time_rts *buf = &tx_head->tx_rts.rts;
        union vnt_tx_data_head *head = &tx_head->tx_rts.tx.head;
 
        buf->rts_rrv_time_aa = vnt_get_rtscts_rsvtime_le(priv, 2,
-                               pkt_type, frame_size, current_rate);
+                       tx_context->pkt_type, frame_size, current_rate);
        buf->rts_rrv_time_ba = vnt_get_rtscts_rsvtime_le(priv, 1,
-                               pkt_type, frame_size, current_rate);
+                       tx_context->pkt_type, frame_size, current_rate);
        buf->rts_rrv_time_bb = vnt_get_rtscts_rsvtime_le(priv, 0,
-                               pkt_type, frame_size, current_rate);
+                       tx_context->pkt_type, frame_size, current_rate);
 
-       buf->rrv_time_a = vnt_rxtx_rsvtime_le16(priv, pkt_type, frame_size,
-                                                       current_rate, need_ack);
+       buf->rrv_time_a = vnt_rxtx_rsvtime_le16(priv, tx_context->pkt_type,
+                                               frame_size, current_rate,
+                                               need_ack);
        buf->rrv_time_b = vnt_rxtx_rsvtime_le16(priv, PK_TYPE_11B, frame_size,
                                        priv->top_cck_basic_rate, need_ack);
 
 
        if (tx_context->fb_option)
                return vnt_rxtx_rts_g_fb_head(tx_context, &head->rts_g_fb,
-                       pkt_type, frame_size, need_ack, current_rate);
+                                       frame_size, need_ack, current_rate);
 
-       return vnt_rxtx_rts_g_head(tx_context, &head->rts_g,
-                               pkt_type, frame_size, need_ack, current_rate);
+       return vnt_rxtx_rts_g_head(tx_context, &head->rts_g, frame_size,
+                                  need_ack, current_rate);
 }
 
 static u16 vnt_rxtx_cts(struct vnt_usb_send_context *tx_context,
-       union vnt_tx_head *tx_head, u8 pkt_type, u32 frame_size,
-       int need_ack, u16 current_rate, bool need_mic)
+       union vnt_tx_head *tx_head, u32 frame_size, int need_ack,
+       u16 current_rate, bool need_mic)
 {
        struct vnt_private *priv = tx_context->priv;
        struct vnt_rrv_time_cts *buf = &tx_head->tx_cts.cts;
        union vnt_tx_data_head *head = &tx_head->tx_cts.tx.head;
 
-
-       buf->rrv_time_a = vnt_rxtx_rsvtime_le16(priv, pkt_type,
+       buf->rrv_time_a = vnt_rxtx_rsvtime_le16(priv, tx_context->pkt_type,
                                        frame_size, current_rate, need_ack);
        buf->rrv_time_b = vnt_rxtx_rsvtime_le16(priv, PK_TYPE_11B,
                                frame_size, priv->top_cck_basic_rate, need_ack);
 
        buf->cts_rrv_time_ba = vnt_get_rtscts_rsvtime_le(priv, 3,
-                       pkt_type, frame_size, current_rate);
+                       tx_context->pkt_type, frame_size, current_rate);
 
        if (need_mic)
                head = &tx_head->tx_cts.tx.mic.head;
 
        /* Fill CTS */
-       return vnt_fill_cts_head(tx_context, pkt_type, head, frame_size,
-                                                       need_ack, current_rate);
+       return vnt_fill_cts_head(tx_context,
+                                head, frame_size, need_ack, current_rate);
 }
 
 static u16 vnt_rxtx_ab(struct vnt_usb_send_context *tx_context,
-       union vnt_tx_head *tx_head, u8 pkt_type, u32 frame_size,
+       union vnt_tx_head *tx_head, u32 frame_size,
        int need_ack, u16 current_rate, bool need_rts, bool need_mic)
 {
        struct vnt_private *priv = tx_context->priv;
        struct vnt_rrv_time_ab *buf = &tx_head->tx_ab.ab;
        union vnt_tx_data_head *head = &tx_head->tx_ab.tx.head;
 
-       buf->rrv_time = vnt_rxtx_rsvtime_le16(priv, pkt_type,
+       buf->rrv_time = vnt_rxtx_rsvtime_le16(priv, tx_context->pkt_type,
                        frame_size, current_rate, need_ack);
 
        if (need_mic)
                head = &tx_head->tx_ab.tx.mic.head;
 
        if (need_rts) {
-               if (pkt_type == PK_TYPE_11B)
+               if (tx_context->pkt_type == PK_TYPE_11B)
                        buf->rts_rrv_time = vnt_get_rtscts_rsvtime_le(priv, 0,
-                               pkt_type, frame_size, current_rate);
+                               tx_context->pkt_type, frame_size, current_rate);
                else /* PK_TYPE_11A */
                        buf->rts_rrv_time = vnt_get_rtscts_rsvtime_le(priv, 2,
-                               pkt_type, frame_size, current_rate);
+                               tx_context->pkt_type, frame_size, current_rate);
 
-               if (tx_context->fb_option && pkt_type == PK_TYPE_11A)
+               if (tx_context->fb_option &&
+                   tx_context->pkt_type == PK_TYPE_11A)
                        return vnt_rxtx_rts_a_fb_head(tx_context,
-                                       &head->rts_a_fb, pkt_type, frame_size,
-                                       need_ack, current_rate);
+                                                     &head->rts_a_fb,
+                                                     frame_size, need_ack,
+                                                     current_rate);
 
                return vnt_rxtx_rts_ab_head(tx_context, &head->rts_ab,
-                               pkt_type, frame_size, need_ack, current_rate);
+                                           frame_size, need_ack, current_rate);
        }
 
-       if (pkt_type == PK_TYPE_11A)
-               return vnt_rxtx_datahead_a_fb(tx_context, pkt_type,
-                       current_rate, &head->data_head_a_fb,
-                               frame_size, need_ack);
+       if (tx_context->pkt_type == PK_TYPE_11A)
+               return vnt_rxtx_datahead_a_fb(tx_context, current_rate,
+                                             &head->data_head_a_fb,
+                                             frame_size, need_ack);
 
-       return vnt_rxtx_datahead_ab(tx_context, pkt_type, current_rate,
-                               &head->data_head_ab, frame_size, need_ack);
+       return vnt_rxtx_datahead_ab(tx_context, current_rate,
+                                   &head->data_head_ab, frame_size, need_ack);
 }
 
 static u16 vnt_generate_tx_parameter(struct vnt_usb_send_context *tx_context,
-       u8 pkt_type, u16 current_rate, struct vnt_tx_buffer *tx_buffer,
+       u16 current_rate, struct vnt_tx_buffer *tx_buffer,
        struct vnt_mic_hdr **mic_hdr, u32 need_mic, u32 frame_size,
        int need_ack, bool need_rts)
 {
 
-       if (pkt_type == PK_TYPE_11GB || pkt_type == PK_TYPE_11GA) {
+       if (tx_context->pkt_type == PK_TYPE_11GB ||
+           tx_context->pkt_type == PK_TYPE_11GA) {
                if (need_rts) {
                        if (need_mic)
                                *mic_hdr = &tx_buffer->
                                                tx_head.tx_rts.tx.mic.hdr;
 
                        return vnt_rxtx_rts(tx_context, &tx_buffer->tx_head,
-                                       pkt_type, frame_size, need_ack,
-                                               current_rate, need_mic);
+                                           frame_size, need_ack, current_rate,
+                                           need_mic);
                }
 
                if (need_mic)
                        *mic_hdr = &tx_buffer->tx_head.tx_cts.tx.mic.hdr;
 
-               return vnt_rxtx_cts(tx_context, &tx_buffer->tx_head, pkt_type,
-                               frame_size, need_ack, current_rate, need_mic);
+               return vnt_rxtx_cts(tx_context, &tx_buffer->tx_head, frame_size,
+                                   need_ack, current_rate, need_mic);
        }
 
        if (need_mic)
                *mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr;
 
-       return vnt_rxtx_ab(tx_context, &tx_buffer->tx_head, pkt_type,
-               frame_size, need_ack, current_rate, need_rts, need_mic);
+       return vnt_rxtx_ab(tx_context, &tx_buffer->tx_head, frame_size,
+                          need_ack, current_rate, need_rts, need_mic);
 }
 
 static void vnt_fill_txkey(struct vnt_usb_send_context *tx_context,
        }
 
        tx_context->skb = skb;
+       tx_context->pkt_type = pkt_type;
 
        spin_unlock_irqrestore(&priv->lock, flags);
 
 
        tx_context->fb_option = fb_option;
 
-       duration_id = vnt_generate_tx_parameter(tx_context, pkt_type,
-                       current_rate, tx_buffer, &mic_hdr, need_mic, frame_size,
-                                               need_ack, need_rts);
+       duration_id = vnt_generate_tx_parameter(tx_context, current_rate,
+                                               tx_buffer, &mic_hdr, need_mic,
+                                               frame_size, need_ack, need_rts);
 
        tx_header_size = tx_context->tx_hdr_size;
        if (!tx_header_size) {